initial commit

.gitignore

@@ -0,0 +1,15 @@
+# Terraform
+**/.terraform/*
+*.tfstate
+*.tfstate.*
+.terraform.lock.hcl
+*.auto.tfvars
+override.tf
+*_override.tf
+.terraformrc
+terraform.rc
+
+# Packer
+ssh_private_key_packer.pem
+*.auto.pkrvars.hcl
+*.cer

LICENSE

@@ -0,0 +1,232 @@
+GNU GENERAL PUBLIC LICENSE
+Version 3, 29 June 2007
+
+Copyright © 2007 Free Software Foundation, Inc. <http://fsf.org/>
+
+Everyone is permitted to copy and distribute verbatim copies of this license document, but changing it is not allowed.
+
+Preamble
+
+The GNU General Public License is a free, copyleft license for software and other kinds of works.
+
+The licenses for most software and other practical works are designed to take away your freedom to share and change the works. By contrast, the GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users. We, the Free Software Foundation, use the GNU General Public License for most of our software; it applies also to any other work released this way by its authors. You can apply it to your programs, too.
+
+When we speak of free software, we are referring to freedom, not price. Our General Public Licenses are designed to make sure that you have the freedom to distribute copies of free software (and charge for them if you wish), that you receive source code or can get it if you want it, that you can change the software or use pieces of it in new free programs, and that you know you can do these things.
+
+To protect your rights, we need to prevent others from denying you these rights or asking you to surrender the rights. Therefore, you have certain responsibilities if you distribute copies of the software, or if you modify it: responsibilities to respect the freedom of others.
+
+For example, if you distribute copies of such a program, whether gratis or for a fee, you must pass on to the recipients the same freedoms that you received. You must make sure that they, too, receive or can get the source code. And you must show them these terms so they know their rights.
+
+Developers that use the GNU GPL protect your rights with two steps: (1) assert copyright on the software, and (2) offer you this License giving you legal permission to copy, distribute and/or modify it.
+
+For the developers' and authors' protection, the GPL clearly explains that there is no warranty for this free software. For both users' and authors' sake, the GPL requires that modified versions be marked as changed, so that their problems will not be attributed erroneously to authors of previous versions.
+
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+
+Finally, every program is threatened constantly by software patents. States should not allow patents to restrict development and use of software on general-purpose computers, but in those that do, we wish to avoid the special danger that patents applied to a free program could make it effectively proprietary. To prevent this, the GPL assures that patents cannot be used to render the program non-free.
+
+The precise terms and conditions for copying, distribution and modification follow.
+
+TERMS AND CONDITIONS
+
+0. Definitions.
+
+“This License” refers to version 3 of the GNU General Public License.
+
+“Copyright” also means copyright-like laws that apply to other kinds of works, such as semiconductor masks.
+
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+
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+
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+
+To “propagate” a work means to do anything with it that, without permission, would make you directly or secondarily liable for infringement under applicable copyright law, except executing it on a computer or modifying a private copy. Propagation includes copying, distribution (with or without modification), making available to the public, and in some countries other activities as well.
+
+To “convey” a work means any kind of propagation that enables other parties to make or receive copies. Mere interaction with a user through a computer network, with no transfer of a copy, is not conveying.
+
+An interactive user interface displays “Appropriate Legal Notices” to the extent that it includes a convenient and prominently visible feature that (1) displays an appropriate copyright notice, and (2) tells the user that there is no warranty for the work (except to the extent that warranties are provided), that licensees may convey the work under this License, and how to view a copy of this License. If the interface presents a list of user commands or options, such as a menu, a prominent item in the list meets this criterion.
+
+1. Source Code.
+The “source code” for a work means the preferred form of the work for making modifications to it. “Object code” means any non-source form of a work.
+
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+All rights granted under this License are granted for the term of copyright on the Program, and are irrevocable provided the stated conditions are met. This License explicitly affirms your unlimited permission to run the unmodified Program. The output from running a covered work is covered by this License only if the output, given its content, constitutes a covered work. This License acknowledges your rights of fair use or other equivalent, as provided by copyright law.
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+4. Conveying Verbatim Copies.
+You may convey verbatim copies of the Program's source code as you receive it, in any medium, provided that you conspicuously and appropriately publish on each copy an appropriate copyright notice; keep intact all notices stating that this License and any non-permissive terms added in accord with section 7 apply to the code; keep intact all notices of the absence of any warranty; and give all recipients a copy of this License along with the Program.
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+You may convey a work based on the Program, or the modifications to produce it from the Program, in the form of source code under the terms of section 4, provided that you also meet all of these conditions:
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+
+6. Conveying Non-Source Forms.
+You may convey a covered work in object code form under the terms of sections 4 and 5, provided that you also convey the machine-readable Corresponding Source under the terms of this License, in one of these ways:
+
+     a) Convey the object code in, or embodied in, a physical product (including a physical distribution medium), accompanied by the Corresponding Source fixed on a durable physical medium customarily used for software interchange.
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+
+7. Additional Terms.
+“Additional permissions” are terms that supplement the terms of this License by making exceptions from one or more of its conditions. Additional permissions that are applicable to the entire Program shall be treated as though they were included in this License, to the extent that they are valid under applicable law. If additional permissions apply only to part of the Program, that part may be used separately under those permissions, but the entire Program remains governed by this License without regard to the additional permissions.
+
+When you convey a copy of a covered work, you may at your option remove any additional permissions from that copy, or from any part of it. (Additional permissions may be written to require their own removal in certain cases when you modify the work.) You may place additional permissions on material, added by you to a covered work, for which you have or can give appropriate copyright permission.
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+Notwithstanding any other provision of this License, for material you add to a covered work, you may (if authorized by the copyright holders of that material) supplement the terms of this License with terms:
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+
+All other non-permissive additional terms are considered “further restrictions” within the meaning of section 10. If the Program as you received it, or any part of it, contains a notice stating that it is governed by this License along with a term that is a further restriction, you may remove that term. If a license document contains a further restriction but permits relicensing or conveying under this License, you may add to a covered work material governed by the terms of that license document, provided that the further restriction does not survive such relicensing or conveying.
+
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+
+Additional terms, permissive or non-permissive, may be stated in the form of a separately written license, or stated as exceptions; the above requirements apply either way.
+
+8. Termination.
+You may not propagate or modify a covered work except as expressly provided under this License. Any attempt otherwise to propagate or modify it is void, and will automatically terminate your rights under this License (including any patent licenses granted under the third paragraph of section 11).
+
+However, if you cease all violation of this License, then your license from a particular copyright holder is reinstated (a) provisionally, unless and until the copyright holder explicitly and finally terminates your license, and (b) permanently, if the copyright holder fails to notify you of the violation by some reasonable means prior to 60 days after the cessation.
+
+Moreover, your license from a particular copyright holder is reinstated permanently if the copyright holder notifies you of the violation by some reasonable means, this is the first time you have received notice of violation of this License (for any work) from that copyright holder, and you cure the violation prior to 30 days after your receipt of the notice.
+
+Termination of your rights under this section does not terminate the licenses of parties who have received copies or rights from you under this License. If your rights have been terminated and not permanently reinstated, you do not qualify to receive new licenses for the same material under section 10.
+
+9. Acceptance Not Required for Having Copies.
+You are not required to accept this License in order to receive or run a copy of the Program. Ancillary propagation of a covered work occurring solely as a consequence of using peer-to-peer transmission to receive a copy likewise does not require acceptance. However, nothing other than this License grants you permission to propagate or modify any covered work. These actions infringe copyright if you do not accept this License. Therefore, by modifying or propagating a covered work, you indicate your acceptance of this License to do so.
+
+10. Automatic Licensing of Downstream Recipients.
+Each time you convey a covered work, the recipient automatically receives a license from the original licensors, to run, modify and propagate that work, subject to this License. You are not responsible for enforcing compliance by third parties with this License.
+
+An “entity transaction” is a transaction transferring control of an organization, or substantially all assets of one, or subdividing an organization, or merging organizations. If propagation of a covered work results from an entity transaction, each party to that transaction who receives a copy of the work also receives whatever licenses to the work the party's predecessor in interest had or could give under the previous paragraph, plus a right to possession of the Corresponding Source of the work from the predecessor in interest, if the predecessor has it or can get it with reasonable efforts.
+
+You may not impose any further restrictions on the exercise of the rights granted or affirmed under this License. For example, you may not impose a license fee, royalty, or other charge for exercise of rights granted under this License, and you may not initiate litigation (including a cross-claim or counterclaim in a lawsuit) alleging that any patent claim is infringed by making, using, selling, offering for sale, or importing the Program or any portion of it.
+
+11. Patents.
+A “contributor” is a copyright holder who authorizes use under this License of the Program or a work on which the Program is based. The work thus licensed is called the contributor's “contributor version”.
+
+A contributor's “essential patent claims” are all patent claims owned or controlled by the contributor, whether already acquired or hereafter acquired, that would be infringed by some manner, permitted by this License, of making, using, or selling its contributor version, but do not include claims that would be infringed only as a consequence of further modification of the contributor version. For purposes of this definition, “control” includes the right to grant patent sublicenses in a manner consistent with the requirements of this License.
+
+Each contributor grants you a non-exclusive, worldwide, royalty-free patent license under the contributor's essential patent claims, to make, use, sell, offer for sale, import and otherwise run, modify and propagate the contents of its contributor version.
+
+In the following three paragraphs, a “patent license” is any express agreement or commitment, however denominated, not to enforce a patent (such as an express permission to practice a patent or covenant not to sue for patent infringement). To “grant” such a patent license to a party means to make such an agreement or commitment not to enforce a patent against the party.
+
+If you convey a covered work, knowingly relying on a patent license, and the Corresponding Source of the work is not available for anyone to copy, free of charge and under the terms of this License, through a publicly available network server or other readily accessible means, then you must either (1) cause the Corresponding Source to be so available, or (2) arrange to deprive yourself of the benefit of the patent license for this particular work, or (3) arrange, in a manner consistent with the requirements of this License, to extend the patent license to downstream recipients. “Knowingly relying” means you have actual knowledge that, but for the patent license, your conveying the covered work in a country, or your recipient's use of the covered work in a country, would infringe one or more identifiable patents in that country that you have reason to believe are valid.
+
+If, pursuant to or in connection with a single transaction or arrangement, you convey, or propagate by procuring conveyance of, a covered work, and grant a patent license to some of the parties receiving the covered work authorizing them to use, propagate, modify or convey a specific copy of the covered work, then the patent license you grant is automatically extended to all recipients of the covered work and works based on it.
+
+A patent license is “discriminatory” if it does not include within the scope of its coverage, prohibits the exercise of, or is conditioned on the non-exercise of one or more of the rights that are specifically granted under this License. You may not convey a covered work if you are a party to an arrangement with a third party that is in the business of distributing software, under which you make payment to the third party based on the extent of your activity of conveying the work, and under which the third party grants, to any of the parties who would receive the covered work from you, a discriminatory patent license (a) in connection with copies of the covered work conveyed by you (or copies made from those copies), or (b) primarily for and in connection with specific products or compilations that contain the covered work, unless you entered into that arrangement, or that patent license was granted, prior to 28 March 2007.
+
+Nothing in this License shall be construed as excluding or limiting any implied license or other defenses to infringement that may otherwise be available to you under applicable patent law.
+
+12. No Surrender of Others' Freedom.
+If conditions are imposed on you (whether by court order, agreement or otherwise) that contradict the conditions of this License, they do not excuse you from the conditions of this License. If you cannot convey a covered work so as to satisfy simultaneously your obligations under this License and any other pertinent obligations, then as a consequence you may not convey it at all. For example, if you agree to terms that obligate you to collect a royalty for further conveying from those to whom you convey the Program, the only way you could satisfy both those terms and this License would be to refrain entirely from conveying the Program.
+
+13. Use with the GNU Affero General Public License.
+Notwithstanding any other provision of this License, you have permission to link or combine any covered work with a work licensed under version 3 of the GNU Affero General Public License into a single combined work, and to convey the resulting work. The terms of this License will continue to apply to the part which is the covered work, but the special requirements of the GNU Affero General Public License, section 13, concerning interaction through a network will apply to the combination as such.
+
+14. Revised Versions of this License.
+The Free Software Foundation may publish revised and/or new versions of the GNU General Public License from time to time. Such new versions will be similar in spirit to the present version, but may differ in detail to address new problems or concerns.
+
+Each version is given a distinguishing version number. If the Program specifies that a certain numbered version of the GNU General Public License “or any later version” applies to it, you have the option of following the terms and conditions either of that numbered version or of any later version published by the Free Software Foundation. If the Program does not specify a version number of the GNU General Public License, you may choose any version ever published by the Free Software Foundation.
+
+If the Program specifies that a proxy can decide which future versions of the GNU General Public License can be used, that proxy's public statement of acceptance of a version permanently authorizes you to choose that version for the Program.
+
+Later license versions may give you additional or different permissions. However, no additional obligations are imposed on any author or copyright holder as a result of your choosing to follow a later version.
+
+15. Disclaimer of Warranty.
+THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM “AS IS” WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
+
+16. Limitation of Liability.
+IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS), EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
+
+17. Interpretation of Sections 15 and 16.
+If the disclaimer of warranty and limitation of liability provided above cannot be given local legal effect according to their terms, reviewing courts shall apply local law that most closely approximates an absolute waiver of all civil liability in connection with the Program, unless a warranty or assumption of liability accompanies a copy of the Program in return for a fee.
+
+END OF TERMS AND CONDITIONS
+
+How to Apply These Terms to Your New Programs
+
+If you develop a new program, and you want it to be of the greatest possible use to the public, the best way to achieve this is to make it free software which everyone can redistribute and change under these terms.
+
+To do so, attach the following notices to the program. It is safest to attach them to the start of each source file to most effectively state the exclusion of warranty; and each file should have at least the “copyright” line and a pointer to where the full notice is found.
+
+     <one line to give the program's name and a brief idea of what it does.>
+     Copyright (C) <year>  <name of author>
+
+     This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.
+
+     This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more details.
+
+     You should have received a copy of the GNU General Public License along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+Also add information on how to contact you by electronic and paper mail.
+
+If the program does terminal interaction, make it output a short notice like this when it starts in an interactive mode:
+
+     <program>  Copyright (C) <year>  <name of author>
+     This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'.
+     This is free software, and you are welcome to redistribute it under certain conditions; type `show c' for details.
+
+The hypothetical commands `show w' and `show c' should show the appropriate parts of the General Public License. Of course, your program's commands might be different; for a GUI interface, you would use an “about box”.
+
+You should also get your employer (if you work as a programmer) or school, if any, to sign a “copyright disclaimer” for the program, if necessary. For more information on this, and how to apply and follow the GNU GPL, see <http://www.gnu.org/licenses/>.
+
+The GNU General Public License does not permit incorporating your program into proprietary programs. If your program is a subroutine library, you may consider it more useful to permit linking proprietary applications with the library. If this is what you want to do, use the GNU Lesser General Public License instead of this License. But first, please read <http://www.gnu.org/philosophy/why-not-lgpl.html>.

README.md

@@ -0,0 +1,12 @@
+# Vanilla Kubernetes on VMware vSphere
+
+## Packer
+1. `cd packer`.
+2. Copy `linux-server.example.pkrvars.hcl` to `linux-server.auto.pkrvars.hcl` and update it as appropriate for your environment.
+2. Put the SSH private key which corresponds to the `build_key` variable in `packer_cache/ssh_private_key_packer.pem`.
+3. Run it with `packer build -on-error=abort -force .`.
+
+## Terraform
+1. `cd terraform`.
+2. Copy `terraform.example.tfvars` to `terraform.auto.tfvars` and update it as appropriate for your environment.
+3. Run it with `terraform apply`.

packer/data/user-data.pkrtpl.hcl

@@ -0,0 +1,189 @@
+#cloud-config
+autoinstall:
+  version: 1
+  early-commands:
+    - sudo systemctl stop ssh
+  locale: ${ vm_guest_os_language }
+  keyboard:
+    layout: ${ vm_guest_os_keyboard }
+  network:
+    network:
+      version: 2
+      ethernets:
+        mainif:
+          match:
+            name: e*
+          critical: true
+          dhcp4: true
+          dhcp-identifier: mac
+  ssh:
+    install-server: true
+    allow-pw: true
+%{ if length( apt_mirror ) > 0 ~}
+  apt:
+    primary:
+      - arches: [default]
+        uri: "${ apt_mirror }"
+%{ endif ~}
+%{ if length( apt_packages ) > 0 ~}
+  packages:
+%{ for package in apt_packages ~}
+    - ${ package }
+%{ endfor ~}
+%{ endif ~}
+  storage:
+    config:
+      - ptable: gpt
+        path: /dev/sda
+        wipe: superblock
+        type: disk
+        id: disk-sda
+      - device: disk-sda
+        size: 1024M
+        wipe: superblock
+        flag: boot
+        number: 1
+        grub_device: true
+        type: partition
+        id: partition-0
+      - fstype: fat32
+        volume: partition-0
+        label: EFIFS
+        type: format
+        id: format-efi
+      - device: disk-sda
+        size: 1024M
+        wipe: superblock
+        number: 2
+        type: partition
+        id: partition-1
+      - fstype: xfs
+        volume: partition-1
+        label: BOOTFS
+        type: format
+        id: format-boot
+      - device: disk-sda
+        size: -1
+        wipe: superblock
+        number: 3
+        type: partition
+        id: partition-2
+      - name: sysvg
+        devices:
+          - partition-2
+        type: lvm_volgroup
+        id: lvm_volgroup-0
+      - name: home
+        volgroup: lvm_volgroup-0
+        size: 4096M
+        wipe: superblock
+        type: lvm_partition
+        id: lvm_partition-home
+      - fstype: xfs
+        volume: lvm_partition-home
+        type: format
+        label: HOMEFS
+        id: format-home
+      - name: tmp
+        volgroup: lvm_volgroup-0
+        size: 3072M
+        wipe: superblock
+        type: lvm_partition
+        id: lvm_partition-tmp
+      - fstype: xfs
+        volume: lvm_partition-tmp
+        type: format
+        label: TMPFS
+        id: format-tmp
+      - name: var
+        volgroup: lvm_volgroup-0
+        size: 4096M
+        wipe: superblock
+        type: lvm_partition
+        id: lvm_partition-var
+      - fstype: xfs
+        volume: lvm_partition-var
+        type: format
+        label: VARFS
+        id: format-var
+      - name: log
+        volgroup: lvm_volgroup-0
+        size: 4096M
+        wipe: superblock
+        type: lvm_partition
+        id: lvm_partition-log
+      - fstype: xfs
+        volume: lvm_partition-log
+        type: format
+        label: LOGFS
+        id: format-log
+      - name: audit
+        volgroup: lvm_volgroup-0
+        size: 4096M
+        wipe: superblock
+        type: lvm_partition
+        id: lvm_partition-audit
+      - fstype: xfs
+        volume: lvm_partition-audit
+        type: format
+        label: AUDITFS
+        id: format-audit
+      - name: root
+        volgroup: lvm_volgroup-0
+        size: -1
+        wipe: superblock
+        type: lvm_partition
+        id: lvm_partition-root
+      - fstype: xfs
+        volume: lvm_partition-root
+        type: format
+        label: ROOTFS
+        id: format-root
+      - path: /
+        device: format-root
+        type: mount
+        id: mount-root
+      - path: /boot
+        device: format-boot
+        type: mount
+        id: mount-boot
+      - path: /boot/efi
+        device: format-efi
+        type: mount
+        id: mount-efi
+      - path: /home
+        device: format-home
+        type: mount
+        id: mount-home
+      - path: /tmp
+        device: format-tmp
+        type: mount
+        id: mount-tmp
+      - path: /var
+        device: format-var
+        type: mount
+        id: mount-var
+      - path: /var/log
+        device: format-log
+        type: mount
+        id: mount-log
+      - path: /var/log/audit
+        device: format-audit
+        type: mount
+        id: mount-audit
+  user-data:
+    package_upgrade: true
+    disable_root: true
+    timezone: ${ vm_guest_os_timezone }
+    hostname: ${ vm_guest_os_hostname }
+    users:
+      - name: ${ build_username }
+        passwd: "${ build_password }"
+        groups: [adm, cdrom, dip, plugdev, lxd, sudo]
+        lock-passwd: false
+        sudo: ALL=(ALL) NOPASSWD:ALL
+        shell: /bin/bash
+%{ if length( build_key ) > 0 ~}
+        ssh_authorized_keys:
+          - ${ build_key }
+%{ endif ~}

packer/linux-server.example.pkrvars.hcl

@@ -0,0 +1,120 @@
+/*
+    DESCRIPTION:
+    Ubuntu Server 20.04 LTS Kubernetes node variables used by the Packer Plugin for VMware vSphere (vsphere-iso).
+*/
+
+// Default Account Credentials
+build_username          = "admin"
+build_password          = "VMware1!"
+build_key               = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOpLvpxilPjpCahAQxs4RQgv+Lb5xObULXtwEoimEBpA builder"
+
+// Virtual Machine Settings
+common_vm_version           = 19
+common_tools_upgrade_policy = true
+common_remove_cdrom         = true
+
+// Template and Content Library Settings
+common_template_conversion         = true
+common_content_library_name        = null
+common_content_library_ovf         = false
+common_content_library_destroy     = true
+common_content_library_skip_export = true
+
+// OVF Export Settings
+common_ovf_export_enabled   = false
+common_ovf_export_overwrite = true
+common_ovf_export_path      = ""
+
+// Removable Media Settings
+common_iso_datastore    = "datastore-01"
+
+// Boot and Provisioning Settings
+common_ip_wait_timeout  = "20m"
+common_shutdown_timeout = "15m"
+
+// vSphere Credentials
+vsphere_endpoint            = "vcenter.lab.local"
+vsphere_username            = "packer"
+vsphere_password            = "VMware1!"
+vsphere_insecure_connection = true
+
+// vSphere Settings
+vsphere_datacenter = "Datacenter 01"
+vsphere_cluster    = "cluster-01"
+vsphere_datastore  = "datastore-01"
+vsphere_network    = "network-01"
+vsphere_folder     = "_Templates"
+
+// Guest Operating System Metadata
+vm_guest_os_language = "en_US"
+vm_guest_os_keyboard = "us"
+vm_guest_os_timezone = "America/Chicago"
+vm_guest_os_family   = "linux"
+
+// Virtual Machine Guest Operating System Setting
+vm_guest_os_type = "ubuntu64Guest"
+
+// Virtual Machine Hardware Settings
+vm_name                   = "k8s-u2004"
+vm_firmware               = "efi-secure"
+vm_cdrom_type             = "sata"
+vm_cpu_count              = 2
+vm_cpu_cores              = 1
+vm_cpu_hot_add            = true
+vm_mem_size               = 2048
+vm_mem_hot_add            = true
+vm_disk_size              = 30720
+vm_disk_controller_type   = ["pvscsi"]
+vm_disk_thin_provisioned  = true
+vm_network_card           = "vmxnet3"
+
+// Removable Media Settings
+iso_url             = null
+iso_path            = "_ISO"
+iso_file            = "ubuntu-20.04.5-live-server-amd64.iso"
+iso_checksum_type   = "sha256"
+iso_checksum_value  = "5035be37a7e9abbdc09f0d257f3e33416c1a0fb322ba860d42d74aa75c3468d4"
+
+// Boot Settings
+vm_boot_order       = "disk,cdrom"
+vm_boot_wait        = "4s"
+vm_boot_command = [
+    "<esc><wait>",
+    "linux /casper/vmlinuz --- autoinstall ds=\"nocloud\"",
+    "<enter><wait>",
+    "initrd /casper/initrd",
+    "<enter><wait>",
+    "boot",
+    "<enter>"
+  ]
+
+// Communicator Settings
+communicator_port     = 22
+communicator_timeout  = "20m"
+build_remove_keys     = false
+
+// Provisioner Settings
+post_install_scripts = [
+  "scripts/wait-for-cloud-init.sh",
+  "scripts/cleanup-subiquity.sh",
+  "scripts/install-ca-certs.sh",
+  "scripts/disable-multipathd.sh",
+  "scripts/disable-release-upgrade-motd.sh",
+  "scripts/persist-cloud-init-net.sh",
+  "scripts/configure-sshd.sh",
+  "scripts/install-k8s.sh",
+  "scripts/update-packages.sh"
+]
+
+pre_final_scripts = [
+  "scripts/cleanup-cloud-init.sh",
+  "scripts/enable-vmware-customization.sh",
+  "scripts/zero-disk.sh",
+  "scripts/generalize.sh"
+]
+
+// Kubernetes Settings
+k8s_version = "1.25.3"
+
+
+

packer/linux-server.pkr.hcl

@@ -0,0 +1,183 @@
+/*
+    DESCRIPTION:
+    Ubuntu Server 20.04 LTS Kubernetes node template using the Packer Builder for VMware vSphere (vsphere-iso).
+*/
+
+//  BLOCK: packer
+//  The Packer configuration.
+
+packer {
+  required_version = ">= 1.8.2"
+  required_plugins {
+    vsphere     = {
+      version   = ">= 1.0.8"
+      source    = "github.com/hashicorp/vsphere"
+    }
+    sshkey      = {
+      version   = ">= 1.0.3"
+      source    = "github.com/ivoronin/sshkey"
+    }
+  }
+}
+
+//  BLOCK: locals
+//  Defines the local variables.
+data "sshkey" "install" {
+}
+
+locals {
+  ssh_public_key        = data.sshkey.install.public_key
+  ssh_private_key_file  = data.sshkey.install.private_key_path
+  build_tool            = "HashiCorp Packer ${packer.version}"
+  build_date            = formatdate("YYYY-MM-DD hh:mm ZZZ", timestamp())
+  build_description     = "Kubernetes Ubuntu 20.04 Node template\nBuild date: ${local.build_date}\nBuild tool: ${local.build_tool}"
+  shutdown_command      = "echo '${var.build_password}' | sudo -S -E shutdown -P now"
+  iso_paths             = ["[${var.common_iso_datastore}] ${var.iso_path}/${var.iso_file}"]
+  iso_checksum          = "${var.iso_checksum_type}:${var.iso_checksum_value}"
+  data_source_content   = {
+    "/meta-data"            = file("data/meta-data")
+    "/user-data"            = templatefile("data/user-data.pkrtpl.hcl", {
+      build_username        = var.build_username
+      build_password        = bcrypt(var.build_password)
+      build_key             = var.build_key
+      vm_guest_os_language  = var.vm_guest_os_language
+      vm_guest_os_keyboard  = var.vm_guest_os_keyboard
+      vm_guest_os_timezone  = var.vm_guest_os_timezone
+      vm_guest_os_hostname  = var.vm_name
+      apt_mirror            = var.cloud_init_apt_mirror
+      apt_packages          = var.cloud_init_apt_packages
+    })
+  }
+}
+
+//  BLOCK: source
+//  Defines the builder configuration blocks.
+
+source "vsphere-iso" "linux-ubuntu" {
+
+  // vCenter Server Endpoint Settings and Credentials
+  vcenter_server        = var.vsphere_endpoint
+  username              = var.vsphere_username
+  password              = var.vsphere_password
+  insecure_connection   = var.vsphere_insecure_connection
+
+  // vSphere Settings
+  datacenter    = var.vsphere_datacenter
+  cluster       = var.vsphere_cluster
+  datastore     = var.vsphere_datastore
+  folder        = var.vsphere_folder
+
+  // Virtual Machine Settings
+  vm_name                   = var.vm_name
+  vm_version                = var.common_vm_version
+  guest_os_type             = var.vm_guest_os_type
+  firmware                  = var.vm_firmware
+  CPUs                      = var.vm_cpu_count
+  cpu_cores                 = var.vm_cpu_cores
+  CPU_hot_plug              = var.vm_cpu_hot_add
+  RAM                       = var.vm_mem_size
+  RAM_hot_plug              = var.vm_mem_hot_add
+  cdrom_type                = var.vm_cdrom_type
+  remove_cdrom              = var.common_remove_cdrom
+  disk_controller_type      = var.vm_disk_controller_type
+  storage {
+    disk_size               = var.vm_disk_size
+    disk_thin_provisioned   = var.vm_disk_thin_provisioned
+  }
+  network_adapters {
+    network                 = var.vsphere_network
+    network_card            = var.vm_network_card
+  }
+  tools_upgrade_policy      = var.common_tools_upgrade_policy
+  notes                     = local.build_description
+  configuration_parameters  = {
+    "devices.hotplug"       = "FALSE"
+  }
+
+  // Removable Media Settings
+  iso_url                   = var.iso_url
+  iso_paths                 = local.iso_paths
+  iso_checksum              = local.iso_checksum
+  cd_content                = local.data_source_content
+  cd_label                  = var.cd_label
+
+  // Boot and Provisioning Settings 
+  boot_order        = var.vm_boot_order
+  boot_wait         = var.vm_boot_wait
+  boot_command      = var.vm_boot_command
+  ip_wait_timeout   = var.common_ip_wait_timeout
+  shutdown_command  = local.shutdown_command
+  shutdown_timeout  = var.common_shutdown_timeout
+
+  // Communicator Settings and Credentials
+  communicator              = "ssh"
+  ssh_username              = var.build_username
+  ssh_password              = var.build_password
+  ssh_private_key_file      = local.ssh_private_key_file
+  ssh_clear_authorized_keys = var.build_remove_keys
+  ssh_port                  = var.communicator_port
+  ssh_timeout               = var.communicator_timeout
+
+  // Snapshot Settings
+  create_snapshot   = var.common_snapshot_creation
+  snapshot_name     = var.common_snapshot_name
+
+  // Template and Content Library Settings
+  convert_to_template   = var.common_template_conversion
+  dynamic "content_library_destination" {
+    for_each            = var.common_content_library_name != null ? [1] : []
+    content {
+      library           = var.common_content_library_name
+      description       = local.build_description
+      ovf               = var.common_content_library_ovf
+      destroy           = var.common_content_library_destroy
+      skip_import       = var.common_content_library_skip_export
+    }
+  }
+
+  // OVF Export Settings
+  dynamic "export" {
+    for_each            = var.common_ovf_export_enabled == true ? [1] : []
+    content {     
+      name              = var.vm_name
+      force             = var.common_ovf_export_overwrite
+      options           = [
+        "extraconfig"
+      ]
+      output_directory  = "${var.common_ovf_export_path}/${var.vm_name}"
+    }
+  }
+}
+
+//  BLOCK: build
+//  Defines the builders to run, provisioners, and post-processors.
+
+build {
+  sources = [
+    "source.vsphere-iso.linux-ubuntu"
+  ]
+
+  provisioner "file" {
+    source      = "certs"
+    destination = "/tmp"
+  }
+
+  provisioner "file" {
+    source      = "packer_cache/ssh_private_key_packer.pem"
+    destination = "/home/${var.build_username}/.ssh/id_ed25519"
+  }
+
+  provisioner "shell" {
+    execute_command     = "export KUBEVERSION=${var.k8s_version}; bash {{ .Path }}"
+    expect_disconnect   = true
+    environment_vars    = [
+      "KUBEVERSION=${var.k8s_version}"
+    ]
+    scripts             = var.post_install_scripts
+  }
+
+  provisioner "shell" {
+    execute_command     = "bash {{ .Path }}"
+    scripts             = var.pre_final_scripts
+  }
+}

packer/packer_cache/ssh_private_key_packer.example.pem

@@ -0,0 +1,7 @@
+-----BEGIN OPENSSH PRIVATE KEY-----
+b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAMwAAAAtzc2gtZW
+QyNTUxOQAAACDqS76cYpT46QmoQEMbOEUIL/i2+cTm1C17cBKIphAaQAAAAJC/ririv64q
+4gAAAAtzc2gtZWQyNTUxOQAAACDqS76cYpT46QmoQEMbOEUIL/i2+cTm1C17cBKIphAaQA
+AAAECBctr1BYu+QL8D8IFHQ8uN/Us4X9xkj9HYf1hQjqrXCupLvpxilPjpCahAQxs4RQgv
++Lb5xObULXtwEoimEBpAAAAADGpvaG5AcGVuZ3VpbgE=
+-----END OPENSSH PRIVATE KEY-----

packer/scripts/cleanup-cloud-init.sh

@@ -0,0 +1,3 @@
+#!/bin/bash -eu
+echo '>> Cleaning up cloud-init state...'
+sudo cloud-init clean -l

packer/scripts/cleanup-subiquity.sh

@@ -0,0 +1,10 @@
+#!/bin/bash -eu
+if [ -f /etc/cloud/cloud.cfg.d/99-installer.cfg ]; then 
+  sudo rm /etc/cloud/cloud.cfg.d/99-installer.cfg
+  echo 'Deleting subiquity cloud-init config'
+fi
+
+if [ -f /etc/cloud/cloud.cfg.d/subiquity-disable-cloudinit-networking.cfg ]; then 
+  sudo rm /etc/cloud/cloud.cfg.d/subiquity-disable-cloudinit-networking.cfg
+  echo 'Deleting subiquity cloud-init network config'
+fi

packer/scripts/configure-sshd.sh

@@ -0,0 +1,6 @@
+#!/bin/bash -eu
+echo '>> Configuring SSH'
+sudo sed -i 's/.*PermitRootLogin.*/PermitRootLogin no/' /etc/ssh/sshd_config
+sudo sed -i 's/.*PubkeyAuthentication.*/PubkeyAuthentication yes/' /etc/ssh/sshd_config
+sudo sed -i 's/.*PasswordAuthentication.*/PasswordAuthentication yes/' /etc/ssh/sshd_config
+

packer/scripts/disable-multipathd.sh

@@ -0,0 +1,3 @@
+#!/bin/bash -eu
+sudo systemctl disable multipathd
+echo 'Disabling multipathd'

packer/scripts/disable-release-upgrade-motd.sh

@@ -0,0 +1,3 @@
+#!/bin/bash -eu
+echo '>> Disabling release update MOTD...'
+sudo chmod -x /etc/update-motd.d/91-release-upgrade

packer/scripts/enable-vmware-customization.sh

@@ -0,0 +1,4 @@
+#!/bin/bash -eu
+echo '>> Enabling legacy VMware Guest Customization...'
+echo 'disable_vmware_customization: true' | sudo tee -a /etc/cloud/cloud.cfg
+sudo vmware-toolbox-cmd config set deployPkg enable-custom-scripts true

packer/scripts/generalize.sh

@@ -0,0 +1,51 @@
+#!/bin/bash -eu
+# Prepare a VM to become a template.
+
+echo '>> Clearing audit logs...'
+sudo sh -c 'if [ -f /var/log/audit/audit.log ]; then 
+  cat /dev/null > /var/log/audit/audit.log 
+  fi'
+sudo sh -c 'if [ -f /var/log/wtmp ]; then 
+  cat /dev/null > /var/log/wtmp
+  fi'
+sudo sh -c 'if [ -f /var/log/lastlog ]; then
+  cat /dev/null > /var/log/lastlog
+  fi'
+sudo sh -c 'if [ -f /etc/logrotate.conf ]; then
+  logrotate -f /etc/logrotate.conf 2>/dev/null
+  fi'
+sudo rm -rf /var/log/journal/*
+sudo rm -f /var/lib/dhcp/*
+sudo find /var/log -type f -delete
+
+echo '>> Clearing persistent udev rules...'
+sudo sh -c 'if [ -f /etc/udev/rules.d/70-persistent-net.rules ]; then
+  rm /etc/udev/rules.d/70-persistent-net.rules
+  fi'
+
+# check for only RHEL releases
+if [[ $(awk -F= '/^ID=/{print $2}' /etc/os-release | grep rhel) ]]; then
+  echo '>> Clearing RHSM subscription...'
+  sudo subscription-manager unregister
+  sudo subscription-manager clean
+fi
+
+echo '>> Clearing temp dirs...'
+sudo rm -rf /tmp/*
+sudo rm -rf /var/tmp/*
+
+echo '>> Clearing host keys...'
+sudo rm -f /etc/ssh/ssh_host_*
+
+echo '>> Clearing machine-id...'
+sudo truncate -s 0 /etc/machine-id
+if [ -f /var/lib/dbus/machine-id ]; then
+  sudo rm -f /var/lib/dbus/machine-id
+  sudo ln -s /etc/machine-id /var/lib/dbus/machine-id
+fi
+
+echo '>> Clearing shell history...'
+unset HISTFILE
+history -cw
+echo > ~/.bash_history
+sudo rm -f /root/.bash_history

packer/scripts/install-ca-certs.sh

@@ -0,0 +1,10 @@
+#!/bin/bash -eu
+
+echo '>> Installing custom certificates...'
+sudo cp /tmp/certs/* /usr/local/share/ca-certificates/
+cd /usr/local/share/ca-certificates/
+for file in *.cer; do
+  sudo mv -- "$file" "${file%.cer}.crt"
+done
+sudo /usr/sbin/update-ca-certificates
+

packer/scripts/install-k8s.sh

@@ -0,0 +1,44 @@
+#!/bin/bash -eu
+
+chmod 600 ~/.ssh/id_ed25519 
+
+echo ">> Installing Kubernetes components..."
+
+# Configure and enable kernel modules
+echo ".. configure kernel modules"
+cat << EOF | sudo tee /etc/modules-load.d/containerd.conf
+overlay
+br_netfilter
+EOF
+
+sudo modprobe overlay
+sudo modprobe br_netfilter
+
+# Configure networking
+echo ".. configure networking"
+cat << EOF | sudo tee /etc/sysctl.d/99-kubernetes-cri.conf
+net.bridge.bridge-nf-call-iptables = 1
+net.ipv4.ip_forward = 1
+net.bridge.bridge-nf-call-ip6tables = 1
+EOF
+
+sudo sysctl --system
+
+# Setup containerd
+echo ".. setup containerd"
+sudo apt-get update && sudo apt-get install -y containerd apt-transport-https jq
+sudo mkdir -p /etc/containerd
+sudo containerd config default | sudo tee /etc/containerd/config.toml
+sudo systemctl restart containerd
+
+# Disable swap
+echo ".. disable swap"
+sudo sed -i '/[[:space:]]swap[[:space:]]/ s/^\(.*\)$/#\1/g' /etc/fstab
+sudo swapoff -a
+
+# Install Kubernetes
+echo ".. install kubernetes version ${KUBEVERSION}"
+sudo curl -fsSLo /usr/share/keyrings/kubernetes-archive-keyring.gpg https://packages.cloud.google.com/apt/doc/apt-key.gpg
+echo "deb [signed-by=/usr/share/keyrings/kubernetes-archive-keyring.gpg] https://apt.kubernetes.io/ kubernetes-xenial main" | sudo tee /etc/apt/sources.list.d/kubernetes.list
+sudo apt-get update && sudo apt-get install -y kubelet=${KUBEVERSION}-00 kubeadm=${KUBEVERSION}-00 kubectl=${KUBEVERSION}-00
+sudo apt-mark hold kubelet kubeadm kubectl

packer/scripts/persist-cloud-init-net.sh

@@ -0,0 +1,3 @@
+#!/bin/sh -eu
+echo '>> Preserving network settings...'
+echo 'manual_cache_clean: True' | sudo tee -a /etc/cloud/cloud.cfg

packer/scripts/update-packages.sh

@@ -0,0 +1,5 @@
+#!/bin/bash -eu
+echo '>> Checking for and installing updates...'
+sudo apt-get update && sudo apt-get -y upgrade
+echo '>> Rebooting!'
+sudo reboot

packer/scripts/wait-for-cloud-init.sh

@@ -0,0 +1,5 @@
+#!/bin/bash -eu
+echo '>> Waiting for cloud-init...'
+while [ ! -f /var/lib/cloud/instance/boot-finished ]; do 
+  sleep 1
+done

packer/scripts/zero-disk.sh

@@ -0,0 +1,4 @@
+#!/bin/bash -eu
+echo '>> Zeroing free space to reduce disk size'
+sudo sh -c 'dd if=/dev/zero of=/EMPTY bs=1M || true; sync; sleep 1; sync'
+sudo sh -c 'rm -f /EMPTY; sync; sleep 1; sync'

packer/variables.pkr.hcl

@@ -0,0 +1,409 @@
+/*
+    DESCRIPTION:
+    Ubuntu Server 20.04 LTS variables using the Packer Builder for VMware vSphere (vsphere-iso).
+*/
+
+//  BLOCK: variable
+//  Defines the input variables.
+
+// vSphere Credentials
+
+variable "vsphere_endpoint" {
+  type        = string
+  description = "The fully qualified domain name or IP address of the vCenter Server instance. (e.g. 'sfo-w01-vc01.sfo.rainpole.io')"
+}
+
+variable "vsphere_username" {
+  type        = string
+  description = "The username to login to the vCenter Server instance. (e.g. 'svc-packer-vsphere@rainpole.io')"
+  sensitive   = true
+}
+
+variable "vsphere_password" {
+  type        = string
+  description = "The password for the login to the vCenter Server instance."
+  sensitive   = true
+}
+
+variable "vsphere_insecure_connection" {
+  type        = bool
+  description = "Do not validate vCenter Server TLS certificate."
+  default     = true
+}
+
+// vSphere Settings
+
+variable "vsphere_datacenter" {
+  type        = string
+  description = "The name of the target vSphere datacenter. (e.g. 'sfo-w01-dc01')"
+}
+
+variable "vsphere_cluster" {
+  type        = string
+  description = "The name of the target vSphere cluster. (e.g. 'sfo-w01-cl01')"
+}
+
+variable "vsphere_datastore" {
+  type        = string
+  description = "The name of the target vSphere datastore. (e.g. 'sfo-w01-cl01-vsan01')"
+}
+
+variable "vsphere_network" {
+  type        = string
+  description = "The name of the target vSphere network segment. (e.g. 'sfo-w01-dhcp')"
+}
+
+variable "vsphere_folder" {
+  type        = string
+  description = "The name of the target vSphere cluster. (e.g. 'sfo-w01-fd-templates')"
+}
+
+// Virtual Machine Settings
+
+variable "vm_name" {
+  type        = string
+  description = "Name of the new VM to create."
+}
+
+variable "vm_guest_os_language" {
+  type        = string
+  description = "The guest operating system lanugage."
+  default     = "en_US"
+}
+
+variable "vm_guest_os_keyboard" {
+  type        = string
+  description = "The guest operating system keyboard input."
+  default     = "us"
+}
+
+variable "vm_guest_os_timezone" {
+  type        = string
+  description = "The guest operating system timezone."
+  default     = "UTC"
+}
+
+variable "vm_guest_os_family" {
+  type        = string
+  description = "The guest operating system family. Used for naming. (e.g. 'linux')"
+}
+
+variable "vm_guest_os_type" {
+  type        = string
+  description = "The guest operating system type, also know as guestid. (e.g. 'ubuntu64Guest')"
+}
+
+variable "vm_firmware" {
+  type        = string
+  description = "The virtual machine firmware. (e.g. 'efi-secure'. 'efi', or 'bios')"
+  default     = "efi-secure"
+}
+
+variable "vm_cdrom_type" {
+  type        = string
+  description = "The virtual machine CD-ROM type. (e.g. 'sata', or 'ide')"
+  default     = "sata"
+}
+
+variable "vm_cpu_count" {
+  type        = number
+  description = "The number of virtual CPUs. (e.g. '2')"
+}
+
+variable "vm_cpu_cores" {
+  type        = number
+  description = "The number of virtual CPUs cores per socket. (e.g. '1')"
+}
+
+variable "vm_cpu_hot_add" {
+  type        = bool
+  description = "Enable hot add CPU."
+  default     = true
+}
+
+variable "vm_mem_size" {
+  type        = number
+  description = "The size for the virtual memory in MB. (e.g. '2048')"
+}
+
+variable "vm_mem_hot_add" {
+  type        = bool
+  description = "Enable hot add memory."
+  default     = true
+}
+
+variable "vm_disk_size" {
+  type        = number
+  description = "The size for the virtual disk in MB. (e.g. '61440' = 60GB)"
+  default     = 61440
+}
+
+variable "vm_disk_controller_type" {
+  type        = list(string)
+  description = "The virtual disk controller types in sequence. (e.g. 'pvscsi')"
+  default     = ["pvscsi"]
+}
+
+variable "vm_disk_thin_provisioned" {
+  type        = bool
+  description = "Thin provision the virtual disk."
+  default     = true
+}
+
+variable "vm_disk_eagerly_scrub" {
+  type        = bool
+  description = "Enable VMDK eager scrubbing for VM."
+  default     = false
+}
+
+variable "vm_network_card" {
+  type        = string
+  description = "The virtual network card type. (e.g. 'vmxnet3' or 'e1000e')"
+  default     = "vmxnet3"
+}
+
+variable "common_vm_version" {
+  type        = number
+  description = "The vSphere virtual hardware version. (e.g. '19')"
+}
+
+variable "common_tools_upgrade_policy" {
+  type        = bool
+  description = "Upgrade VMware Tools on reboot."
+  default     = true
+}
+
+variable "common_remove_cdrom" {
+  type        = bool
+  description = "Remove the virtual CD-ROM(s)."
+  default     = true
+}
+
+// Template and Content Library Settings
+
+variable "common_template_conversion" {
+  type        = bool
+  description = "Convert the virtual machine to template. Must be 'false' for content library."
+  default     = false
+}
+
+variable "common_content_library_name" {
+  type        = string
+  description = "The name of the target vSphere content library, if used. (e.g. 'sfo-w01-cl01-lib01')"
+  default     = null
+}
+
+variable "common_content_library_ovf" {
+  type        = bool
+  description = "Export to content library as an OVF template."
+  default     = false
+}
+
+variable "common_content_library_destroy" {
+  type        = bool
+  description = "Delete the virtual machine after exporting to the content library."
+  default     = true
+}
+
+variable "common_content_library_skip_export" {
+  type        = bool
+  description = "Skip exporting the virtual machine to the content library. Option allows for testing / debugging without saving the machine image."
+  default     = false
+}
+
+// Snapshot Settings
+
+variable "common_snapshot_creation" {
+  type        = bool
+  description = "Create a snapshot for Linked Clones."
+  default     = false
+}
+
+variable "common_snapshot_name" {
+  type        = string
+  description = "Name of the snapshot to be created if create_snapshot is true."
+  default     = "Created By Packer"
+}
+
+// OVF Export Settings
+
+variable "common_ovf_export_enabled" {
+  type        = bool
+  description = "Enable OVF artifact export."
+  default     = false
+}
+
+variable "common_ovf_export_overwrite" {
+  type        = bool
+  description = "Overwrite existing OVF artifact."
+  default     = true
+}
+
+variable "common_ovf_export_path" {
+  type        = string
+  description = "Folder path for the OVF export."
+}
+
+// Removable Media Settings
+
+variable "common_iso_datastore" {
+  type        = string
+  description = "The name of the source vSphere datastore for ISO images. (e.g. 'sfo-w01-cl01-nfs01')"
+}
+
+variable "iso_url" {
+  type        = string
+  description = "The URL source of the ISO image. (e.g. 'https://artifactory.rainpole.io/.../os.iso')"
+}
+
+variable "iso_path" {
+  type        = string
+  description = "The path on the source vSphere datastore for ISO image. (e.g. 'iso/linux/ubuntu')"
+}
+
+variable "iso_file" {
+  type        = string
+  description = "The file name of the ISO image used by the vendor. (e.g. 'ubuntu-<version>-live-server-amd64.iso')"
+}
+
+variable "iso_checksum_type" {
+  type        = string
+  description = "The checksum algorithm used by the vendor. (e.g. 'sha256')"
+}
+
+variable "iso_checksum_value" {
+  type        = string
+  description = "The checksum value provided by the vendor."
+}
+
+variable "cd_label" {
+  type        = string
+  description = "CD Label"
+  default     = "cidata"
+}
+
+// Boot Settings
+
+variable "vm_boot_order" {
+  type        = string
+  description = "The boot order for virtual machines devices. (e.g. 'disk,cdrom')"
+  default     = "disk,cdrom"
+}
+
+variable "vm_boot_wait" {
+  type        = string
+  description = "The time to wait before boot."
+}
+
+variable "vm_boot_command" {
+  type        = list(string)
+  description = "The virtual machine boot command."
+  default     = []
+}
+
+variable "vm_shutdown_command" {
+  type        = string
+  description = "Command(s) for guest operating system shutdown."
+  default     = null
+}
+
+variable "common_ip_wait_timeout" {
+  type        = string
+  description = "Time to wait for guest operating system IP address response."
+}
+
+variable "common_shutdown_timeout" {
+  type        = string
+  description = "Time to wait for guest operating system shutdown."
+}
+
+// Communicator Settings and Credentials
+
+variable "build_username" {
+  type        = string
+  description = "The username to login to the guest operating system. (e.g. 'rainpole')"
+  sensitive   = true
+}
+
+variable "build_password" {
+  type        = string
+  description = "The password to login to the guest operating system."
+  sensitive   = true
+}
+
+variable "build_password_encrypted" {
+  type        = string
+  description = "The encrypted password to login the guest operating system."
+  sensitive   = true
+  default     = null
+}
+
+variable "build_key" {
+  type        = string
+  description = "The public key to login to the guest operating system."
+  sensitive   = true
+}
+
+variable "build_remove_keys" {
+  type        = bool
+  description = "If true, Packer will attempt to remove its temporary key from ~/.ssh/authorized_keys and /root/.ssh/authorized_keys"
+  default     = true
+}
+
+// Communicator Settings
+
+variable "communicator_port" {
+  type        = string
+  description = "The port for the communicator protocol."
+}
+
+variable "communicator_timeout" {
+  type        = string
+  description = "The timeout for the communicator protocol."
+}
+
+variable "communicator_insecure" {
+  type        = bool
+  description = "If true, do not check server certificate chain and host name"
+  default     = true
+}
+
+variable "communicator_ssl" {
+  type        = bool
+  description = "If true, use SSL"
+  default     = true
+}
+
+// Provisioner Settings
+
+variable "cloud_init_apt_packages" {
+  type        = list(string)
+  description = "A list of apt packages to install during the subiquity cloud-init installer."
+  default     = []
+}
+
+variable "cloud_init_apt_mirror" {
+  type        = string
+  description = "Sets the default apt mirror during the subiquity cloud-init installer."
+  default     = ""
+}
+
+variable "post_install_scripts" {
+  type        = list(string)
+  description = "A list of scripts and their relative paths to transfer and run after OS install."
+  default     = []
+}
+
+variable "pre_final_scripts" {
+  type        = list(string)
+  description = "A list of scripts and their relative paths to transfer and run before finalization."
+  default     = []
+}
+
+// Kubernetes Settings
+
+variable "k8s_version" {
+  type        = string
+  description = "Kubernetes version to be installed. Latest stable is listed at https://dl.k8s.io/release/stable.txt"
+  default     = "1.25.3"
+}

terraform/main.tf

@@ -0,0 +1,217 @@
+terraform {
+  required_providers {
+    vsphere = {
+      version = "2.2.0"
+    }
+  }
+}
+
+provider "vsphere" {
+  user = var.vsphere-user
+  password = var.vsphere-password
+  vsphere_server = var.vsphere-server
+  allow_unverified_ssl = var.vsphere-unverified-ssl
+}
+
+data "vsphere_datacenter" "dc" {
+  name = var.vsphere-datacenter
+}
+
+data "vsphere_datastore" "datastore" {
+  name = var.vm-datastore
+  datacenter_id = data.vsphere_datacenter.dc.id
+}
+
+data "vsphere_datastore" "k8s-datastore" {
+  name = var.k8s-datastore
+  datacenter_id = data.vsphere_datacenter.dc.id
+}
+
+data "vsphere_compute_cluster" "cluster" {
+  name = var.vsphere-cluster
+  datacenter_id = data.vsphere_datacenter.dc.id
+}
+
+data "vsphere_network" "network" {
+  name = var.vm-network-name
+  datacenter_id = data.vsphere_datacenter.dc.id
+}
+
+data "vsphere_virtual_machine" "template" {
+  name = "/${var.vsphere-datacenter}/vm/${var.vsphere-template-folder}/${var.vm-template-name}"
+  datacenter_id = data.vsphere_datacenter.dc.id
+}
+
+resource "random_shuffle" "certkey" {
+  input = ["a", "b", "c", "d", "e", "f", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"]
+  result_count = 64
+}
+
+resource "random_string" "token1" {
+  length = 6
+  special = false
+  upper = false
+}
+
+resource "random_string" "token2" {
+  length = 16
+  special = false
+  upper = false
+}
+
+locals {
+  kubeadm-certkey = join("", random_shuffle.certkey.result)
+  kubeadm-token = join(".", [random_string.token1.result, random_string.token2.result])
+  k8s-initial-node = "${var.vm-control-name}-1"
+  k8s-node-count = "${var.vm-control-count + var.vm-worker-count}"
+}
+
+resource "vsphere_virtual_machine" "control" {
+  count = var.vm-control-count
+  name = "${var.vm-control-name}-${count.index + 1}"
+  resource_pool_id = data.vsphere_compute_cluster.cluster.resource_pool_id
+  datastore_id = data.vsphere_datastore.datastore.id
+  folder = var.vm-folder
+
+  num_cpus = var.vm-control-cpu
+  memory = var.vm-control-ram
+  guest_id = data.vsphere_virtual_machine.template.guest_id
+  firmware = data.vsphere_virtual_machine.template.firmware
+  hardware_version = data.vsphere_virtual_machine.template.hardware_version
+  scsi_type = data.vsphere_virtual_machine.template.scsi_type
+
+  extra_config = {
+    "disk.EnableUUID" = "TRUE"
+  }
+
+  network_interface {
+    network_id = data.vsphere_network.network.id
+    adapter_type = data.vsphere_virtual_machine.template.network_interface_types[0]
+  }
+
+  disk {
+    label = "${var.vm-control-name}-${count.index +1}-disk"
+    size = var.vm-control-disk-size
+  }
+
+  clone {
+    template_uuid = data.vsphere_virtual_machine.template.id
+    customize {
+      timeout = 0
+      
+      linux_options {
+        host_name = "${var.vm-control-name}-${count.index +1}"
+        domain = var.vm-domain
+      }
+
+      network_interface {
+        ipv4_address = "${var.vm-network-address != "0.0.0.0/0" ? cidrhost(var.vm-network-address, var.vm-control-ip-address-start + count.index) : ""}"
+        ipv4_netmask = "${var.vm-network-address != "0.0.0.0/0" ? element(split("/", var.vm-network-address), 1) : 0}"
+      }
+
+      ipv4_gateway = var.vm-network-gateway
+      dns_server_list = var.vm-network-dns-servers
+      dns_suffix_list = [var.vm-domain]
+    }
+  }
+
+  connection {
+    type = "ssh"
+    user = "${var.k8s-username}"
+    private_key = file("${var.k8s-ssh-key-file}")
+    host = "${self.default_ip_address}"
+  }
+
+  provisioner "file" {
+    source = "scripts/initialize-controlplane.sh"
+    destination = "/home/${var.k8s-username}/initialize-controlplane.sh"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "echo export K8S_INITIAL_NODE=\"'${local.k8s-initial-node}'\" >> env.txt",
+      "echo export KUBEADM_TOKEN=\"'${local.kubeadm-token}'\" >> env.txt",
+      "echo export KUBEADM_CERTKEY=\"'${local.kubeadm-certkey}'\" >> env.txt",
+      "echo export K8S_VER=\"'${var.k8s-version}'\" >> env.txt",
+      "echo export K8S_SERVICE_CIDR=\"'${var.k8s-service-cidr}'\" >> env.txt",
+      "echo export K8S_POD_CIDR=\"'${var.k8s-pod-cidr}'\" >> env.txt",
+      "echo export K8S_CLUSTER_NAME=\"'${var.k8s-cluster-name}'\" >> env.txt",
+      "echo export K8S_CONTROLPLANE_VIP=\"'${var.k8s-controlplane-vip}'\" >> env.txt",
+      "echo export KUBEVIP_VER=\"'${var.k8s-kubevip-version}'\" >> env.txt",
+      "echo export K8S_NODE_COUNT=\"'${local.k8s-node-count}'\" >> env.txt",
+      "echo export VCENTER_SERVER=\"'${var.vsphere-server}'\" >> env.txt",
+      "echo export VCENTER_USERNAME=\"'${var.vsphere-user}'\" >> env.txt",
+      "echo export VCENTER_PASSWORD=\"'${var.vsphere-password}'\" >> env.txt",
+      "echo export VCENTER_DATACENTER=\"'${var.vsphere-datacenter}'\" >> env.txt",
+      "chmod +x /home/${var.k8s-username}/initialize-controlplane.sh",
+      "/home/${var.k8s-username}/initialize-controlplane.sh"
+    ]
+  }
+}
+
+resource "vsphere_virtual_machine" "worker" {
+  count = var.vm-worker-count
+  name = "${var.vm-worker-name}-${count.index + 1}"
+  resource_pool_id = data.vsphere_compute_cluster.cluster.resource_pool_id
+  datastore_id = data.vsphere_datastore.datastore.id
+  folder = "/${var.vsphere-datacenter}/vm/${var.vm-folder}"
+
+  num_cpus = var.vm-worker-cpu
+  memory = var.vm-worker-ram
+  guest_id = data.vsphere_virtual_machine.template.guest_id
+  firmware = data.vsphere_virtual_machine.template.firmware
+  hardware_version = data.vsphere_virtual_machine.template.hardware_version
+  scsi_type = data.vsphere_virtual_machine.template.scsi_type
+
+  network_interface {
+    network_id = data.vsphere_network.network.id
+    adapter_type = data.vsphere_virtual_machine.template.network_interface_types[0]
+  }
+
+  disk {
+    label = "${var.vm-worker-name}-${count.index +1}-disk"
+    size = var.vm-worker-disk-size
+  }
+
+  clone {
+    template_uuid = data.vsphere_virtual_machine.template.id
+    customize {
+      timeout = 0
+      
+      linux_options {
+        host_name = "${var.vm-worker-name}-${count.index +1}"
+        domain = var.vm-domain
+      }
+
+      network_interface {
+        ipv4_address = "${var.vm-network-address != "0.0.0.0/0" ? cidrhost(var.vm-network-address, var.vm-worker-ip-address-start + count.index) : ""}"
+        ipv4_netmask = "${var.vm-network-address != "0.0.0.0/0" ? element(split("/", var.vm-network-address), 1) : 0}"
+      }
+
+      ipv4_gateway = var.vm-network-gateway
+      dns_server_list = var.vm-network-dns-servers
+      dns_suffix_list = [var.vm-domain]
+    }
+  }
+  connection {
+    type = "ssh"
+    user = "${var.k8s-username}"
+    private_key = file("${var.k8s-ssh-key-file}")
+    host = "${self.default_ip_address}"
+  }
+
+  provisioner "file" {
+    source = "scripts/join-workers.sh"
+    destination = "/home/${var.k8s-username}/join-workers.sh"
+  }
+
+  provisioner "remote-exec" {
+    inline = [
+      "echo export KUBEADM_TOKEN=\"'${local.kubeadm-token}'\" >> env.txt",
+      "echo export K8S_CONTROLPLANE_VIP=\"'${var.k8s-controlplane-vip}'\" >> env.txt",
+      "echo export K8S_CONTROLPLANE_COUNT=\"'${var.vm-control-count}'\" >> env.txt",
+      "chmod +x /home/${var.k8s-username}/join-workers.sh",
+      "/home/${var.k8s-username}/join-workers.sh"
+    ]
+  }
+}

terraform/scripts/initialize-controlplane.sh

@@ -0,0 +1,403 @@
+#!/bin/bash -eu
+source ./env.txt
+
+if [ ! -f /etc/kubernetes/manifests/kube-vip.yaml ]; then
+  echo ">> Configuring kube-vip..."
+  sudo ctr image pull ghcr.io/kube-vip/kube-vip:"${KUBEVIP_VER}"
+  sudo ctr run --rm --net-host ghcr.io/kube-vip/kube-vip:"${KUBEVIP_VER}" vip /kube-vip manifest pod \
+    --interface ens192 \
+    --vip "${K8S_CONTROLPLANE_VIP}" \
+    --controlplane \
+    --arp \
+    --leaderElection | sudo tee /etc/kubernetes/manifests/kube-vip.yaml
+fi
+
+if [ "${HOSTNAME}" == "${K8S_INITIAL_NODE}" ]; then
+  if ! kubectl get nodes 2>/dev/null; then
+    echo ">> Bootstrapping first controlplane node..."
+    cat << EOF > kubeadminit.yaml
+apiVersion: kubeadm.k8s.io/v1beta3
+kind: InitConfiguration
+bootstrapTokens:
+- groups:
+  - system:bootstrappers:kubeadm:default-node-token
+  token: ${KUBEADM_TOKEN}
+  ttl: 0s
+  usages:
+  - signing
+  - authentication
+nodeRegistration:
+  kubeletExtraArgs:
+    cloud-provider: "external"
+certificateKey: ${KUBEADM_CERTKEY}
+---
+apiVersion: kubeadm.k8s.io/v1beta3
+kind: ClusterConfiguration
+kubernetesVersion: ${K8S_VER}
+controlPlaneEndpoint: ${K8S_CONTROLPLANE_VIP}
+clusterName: ${K8S_CLUSTER_NAME}
+networking:
+  dnsDomain: cluster.local
+  serviceSubnet: ${K8S_SERVICE_CIDR}
+  podSubnet: ${K8S_POD_CIDR}
+dns: {}
+etcd:
+  local:
+    dataDir: /var/lib/etcd
+EOF
+    if sudo kubeadm init --upload-certs --config kubeadminit.yaml; then
+      echo ">> Node ${HOSTNAME} successfully initialized!"
+      touch .k8s-node-success
+      mkdir -p "${HOME}"/.kube
+      sudo cp -i /etc/kubernetes/admin.conf "${HOME}"/.kube/config
+      sudo chown "$(id -u):$(id -g)" "${HOME}"/.kube/config
+
+      echo ">> Applying Calico networking..."
+      kubectl apply -f https://docs.projectcalico.org/manifests/calico.yaml
+
+      echo ">> Creating discovery config..."
+      kubectl -n kube-public get configmap cluster-info -o jsonpath='{.data.kubeconfig}' > discovery.yaml
+      sudo install -o root -g root -m 600 discovery.yaml /etc/kubernetes/discovery.yaml
+    else
+      echo ">> [ERROR] Cluster initialization unsuccessful on ${HOSTNAME}! <<"
+      exit 1
+    fi
+  fi
+  echo ">> Waiting up to 15 minutes for all nodes to be Ready..."
+  attempts_max=90
+  attempt=0
+  until [ "$(kubectl get nodes | grep -c ' Ready ')" == "${K8S_NODE_COUNT}" ]; do
+    if [ ${attempt} -eq ${attempts_max} ]; then
+      echo ">> [ERROR] Timeout waiting for cluster online! <<"
+      exit 1
+    fi
+    attempt=$((attempt+1))
+    sleep 10
+  done
+  echo ">> Continuing after $((attempt*10)) seconds."
+  echo ">> Configuring vSphere Cloud Provider Interface..."
+  cat << EOF | kubectl apply -f -
+# https://raw.githubusercontent.com/kubernetes/cloud-provider-vsphere/release-1.25/releases/v1.25/vsphere-cloud-controller-manager.yaml
+---
+apiVersion: v1
+kind: ServiceAccount
+metadata:
+  name: cloud-controller-manager
+  labels:
+    vsphere-cpi-infra: service-account
+    component: cloud-controller-manager
+  namespace: kube-system
+---
+apiVersion: v1
+kind: Secret
+metadata:
+  name: vsphere-cloud-secret
+  labels:
+    vsphere-cpi-infra: secret
+    component: cloud-controller-manager
+  namespace: kube-system
+stringData:
+  ${VCENTER_SERVER}.username: ${VCENTER_USERNAME}
+  ${VCENTER_SERVER}.password: ${VCENTER_PASSWORD}
+---
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: vsphere-cloud-config
+  labels:
+    vsphere-cpi-infra: config
+    component: cloud-controller-manager
+  namespace: kube-system
+data:
+  vsphere.conf: |
+    global:
+      port: 443
+      insecureFlag: true
+      secretName: vsphere-cloud-secret
+      secretNamespace: kube-system
+    vcenter:
+      ${VCENTER_SERVER}:
+        server: ${VCENTER_SERVER}
+        datacenters:
+          - ${VCENTER_DATACENTER}
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: RoleBinding
+metadata:
+  name: servicecatalog.k8s.io:apiserver-authentication-reader
+  labels:
+    vsphere-cpi-infra: role-binding
+    component: cloud-controller-manager
+  namespace: kube-system
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: Role
+  name: extension-apiserver-authentication-reader
+subjects:
+  - apiGroup: ""
+    kind: ServiceAccount
+    name: cloud-controller-manager
+    namespace: kube-system
+  - apiGroup: ""
+    kind: User
+    name: cloud-controller-manager
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRoleBinding
+metadata:
+  name: system:cloud-controller-manager
+  labels:
+    vsphere-cpi-infra: cluster-role-binding
+    component: cloud-controller-manager
+roleRef:
+  apiGroup: rbac.authorization.k8s.io
+  kind: ClusterRole
+  name: system:cloud-controller-manager
+subjects:
+  - kind: ServiceAccount
+    name: cloud-controller-manager
+    namespace: kube-system
+  - kind: User
+    name: cloud-controller-manager
+---
+apiVersion: rbac.authorization.k8s.io/v1
+kind: ClusterRole
+metadata:
+  name: system:cloud-controller-manager
+  labels:
+    vsphere-cpi-infra: role
+    component: cloud-controller-manager
+rules:
+  - apiGroups:
+      - ""
+    resources:
+      - events
+    verbs:
+      - create
+      - patch
+      - update
+  - apiGroups:
+      - ""
+    resources:
+      - nodes
+    verbs:
+      - "*"
+  - apiGroups:
+      - ""
+    resources:
+      - nodes/status
+    verbs:
+      - patch
+  - apiGroups:
+      - ""
+    resources:
+      - services
+    verbs:
+      - list
+      - patch
+      - update
+      - watch
+  - apiGroups:
+      - ""
+    resources:
+      - services/status
+    verbs:
+      - patch
+  - apiGroups:
+      - ""
+    resources:
+      - serviceaccounts
+    verbs:
+      - create
+      - get
+      - list
+      - watch
+      - update
+  - apiGroups:
+      - ""
+    resources:
+      - persistentvolumes
+    verbs:
+      - get
+      - list
+      - update
+      - watch
+  - apiGroups:
+      - ""
+    resources:
+      - endpoints
+    verbs:
+      - create
+      - get
+      - list
+      - watch
+      - update
+  - apiGroups:
+      - ""
+    resources:
+      - secrets
+    verbs:
+      - get
+      - list
+      - watch
+  - apiGroups:
+      - "coordination.k8s.io"
+    resources:
+      - leases
+    verbs:
+      - create
+      - get
+      - list
+      - watch
+      - update
+---
+apiVersion: apps/v1
+kind: DaemonSet
+metadata:
+  name: vsphere-cloud-controller-manager
+  labels:
+    component: cloud-controller-manager
+    tier: control-plane
+  namespace: kube-system
+spec:
+  selector:
+    matchLabels:
+      name: vsphere-cloud-controller-manager
+  updateStrategy:
+    type: RollingUpdate
+  template:
+    metadata:
+      labels:
+        name: vsphere-cloud-controller-manager
+        component: cloud-controller-manager
+        tier: control-plane
+    spec:
+      tolerations:
+        - key: node.cloudprovider.kubernetes.io/uninitialized
+          value: "true"
+          effect: NoSchedule
+        - key: node-role.kubernetes.io/master
+          effect: NoSchedule
+          operator: Exists
+        - key: node-role.kubernetes.io/control-plane
+          effect: NoSchedule
+          operator: Exists
+        - key: node.kubernetes.io/not-ready
+          effect: NoSchedule
+          operator: Exists
+      securityContext:
+        runAsUser: 1001
+      serviceAccountName: cloud-controller-manager
+      priorityClassName: system-node-critical
+      containers:
+        - name: vsphere-cloud-controller-manager
+          image: gcr.io/cloud-provider-vsphere/cpi/release/manager:v1.25.0
+          args:
+            - --cloud-provider=vsphere
+            - --v=2
+            - --cloud-config=/etc/cloud/vsphere.conf
+          volumeMounts:
+            - mountPath: /etc/cloud
+              name: vsphere-config-volume
+              readOnly: true
+          resources:
+            requests:
+              cpu: 200m
+      hostNetwork: true
+      volumes:
+        - name: vsphere-config-volume
+          configMap:
+            name: vsphere-cloud-config
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+            - matchExpressions:
+              - key: node-role.kubernetes.io/control-plane
+                operator: Exists
+            - matchExpressions:
+              - key: node-role.kubernetes.io/master
+                operator: Exists
+EOF
+  echo ">> Configuring vSphere Cloud Storage Interface..."
+  cat << EOF | kubectl apply -f -
+# https://raw.githubusercontent.com/kubernetes-sigs/vsphere-csi-driver/v2.7.0/manifests/vanilla/namespace.yaml
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: vmware-system-csi
+EOF
+
+  cat << EOF > csi-vsphere.conf
+[Global]
+cluster-id = "${K8S_CLUSTER_NAME}"
+# ca-file = <ca file path> # optional, use with insecure-flag set to false
+# thumbprint = "<cert thumbprint>" # optional, use with insecure-flag set to false without providing ca-file
+
+[VirtualCenter "${VCENTER_SERVER}"]
+insecure-flag = "true"
+user = "${VCENTER_USERNAME}"
+password = "${VCENTER_PASSWORD}"
+port = "443"
+datacenters = "${VCENTER_DATACENTER}"
+EOF
+
+  kubectl create secret generic vsphere-config-secret --from-file=csi-vsphere.conf --namespace=vmware-system-csi
+  if kubectl apply -f https://raw.githubusercontent.com/kubernetes-sigs/vsphere-csi-driver/v2.7.0/manifests/vanilla/vsphere-csi-driver.yaml; then
+    echo ">> Cluster initialization complete!"
+    touch .k8s-cluster-success
+    rm -f csi-vsphere.conf discovery.yaml env.txt kubeadminit.yaml initialize-controlplane.sh
+  else
+    echo ">> [ERROR] Failed to configure CSI! <<"
+  fi
+else
+  echo ">> Waiting up to 5 minutes for initial control node..."
+  attempts_max=30
+  attempt=0
+  until nc "${K8S_CONTROLPLANE_VIP}" 6443 -w 1 2>/dev/null; do
+    if [ ${attempt} -eq ${attempts_max} ]; then
+      echo ">> [ERROR] Timeout waiting for control node! <<"
+      exit 1
+    fi
+    attempt=$((attempt+1))
+    sleep 10
+  done
+  echo ">> Continuing after $((attempt*10)) seconds."
+  echo ">> Joining cluster..."
+  attempts_max=6
+  attempt=0
+  until [ -f /etc/kubernetes/discovery.yaml ]; do
+    scp -o StrictHostKeyChecking=no "${K8S_CONTROLPLANE_VIP}":discovery.yaml . 2>/dev/null
+    sudo install -o root -g root -m 600 discovery.yaml /etc/kubernetes/discovery.yaml 2>/dev/null
+    if [ ! -f /etc/kubernetes/discovery.yaml ]; then
+      attempt=$((attempt+1))
+      sleep 10
+    fi
+  done
+  cat << EOF > kubeadmjoin.yaml
+apiVersion: kubeadm.k8s.io/v1beta3
+caCertPath: /etc/kubernetes/pki/ca.crt
+discovery:
+  file:
+    kubeConfigPath: /etc/kubernetes/discovery.yaml
+  timeout: 5m0s
+  tlsBootstrapToken: ${KUBEADM_TOKEN}
+kind: JoinConfiguration
+nodeRegistration:
+  kubeletExtraArgs:
+    cloud-provider: external
+controlPlane:
+  certificateKey: ${KUBEADM_CERTKEY}
+EOF
+  if sudo kubeadm join "${K8S_CONTROLPLANE_VIP}":6443 --config kubeadmjoin.yaml; then
+    echo ">> Node ${HOSTNAME} successfully initialized!"
+    touch .k8s-node-success
+    mkdir -p "${HOME}"/.kube
+    sudo cp -i /etc/kubernetes/admin.conf "${HOME}"/.kube/config
+    sudo chown "$(id -u):$(id -g)" "${HOME}"/.kube/config
+    rm -f discovery.yaml env.txt kubeadmjoin.yaml initialize-controlplane.sh
+  else
+    echo ">> [ERROR] Cluster initialization unsuccessful on ${HOSTNAME}! <<"
+    exit 1
+  fi
+fi

terraform/scripts/join-workers.sh

@@ -0,0 +1,63 @@
+#!/bin/bash -eu
+# export KUBEADM_TOKEN="1iopsj.8w8c5aacrt1zdl6z"
+# export K8S_CONTROLPLANE_VIP="kates.lab.bowdre.net"
+
+source ./env.txt
+
+echo ">> Waiting up to 5 minutes for initial control-plane node..."
+attempts_max=30
+attempt=0
+until nc "${K8S_CONTROLPLANE_VIP}" 6443 -w 1 2>/dev/null; do
+  if [ ${attempt} -eq ${attempts_max} ]; then
+    echo ">> [ERROR] Timeout waiting for control node! <<"
+    exit 1
+  fi
+  attempt=$((attempt+1))
+  sleep 10
+done
+echo ">> Continuing after $((attempt*10)) seconds."
+echo ">> Waiting up to 10 minutes for all control-plane nodes..."
+attempts_max=60
+attempt=0
+until [ "$(ssh -o StrictHostKeyChecking=no "${K8S_CONTROLPLANE_VIP}" kubectl get nodes | grep -c " control-plane ")" -eq "${K8S_CONTROLPLANE_COUNT}" ]; do
+  if [ ${attempt} -eq ${attempts_max} ]; then
+    echo ">> [ERROR] Timeout waiting for control-plane nodes! <<"
+    exit 1
+  fi
+  attempt=$((attempt+1))
+  sleep 10
+done
+echo ">> Continuing after $((attempt*10)) seconds."
+echo ">> Joining cluster..."
+attempts_max=6
+attempt=0
+until [ -f /etc/kubernetes/discovery.yaml ]; do
+  scp -o StrictHostKeyChecking=no "${K8S_CONTROLPLANE_VIP}":discovery.yaml . 2>/dev/null
+  sudo install -o root -g root -m 600 discovery.yaml /etc/kubernetes/discovery.yaml 2>/dev/null
+  if [ ! -f /etc/kubernetes/discovery.yaml ]; then
+    attempt=$((attempt+1))
+    sleep 10
+  fi
+done
+
+cat << EOF > kubeadmjoin.yaml
+apiVersion: kubeadm.k8s.io/v1beta3
+caCertPath: /etc/kubernetes/pki/ca.crt
+discovery:
+  file:
+    kubeConfigPath: /etc/kubernetes/discovery.yaml
+  timeout: 5m0s
+  tlsBootstrapToken: ${KUBEADM_TOKEN}
+kind: JoinConfiguration
+nodeRegistration:
+  kubeletExtraArgs:
+    cloud-provider: external
+EOF
+if sudo kubeadm join "${K8S_CONTROLPLANE_VIP}":6443 --config kubeadmjoin.yaml; then
+  echo ">> Node ${HOSTNAME} successfully initialized!"
+  touch .k8s-node-success
+  rm -f env.txt kubeadmjoin.yaml discovery.yaml join-workers.sh
+else
+  echo ">> [ERROR] Cluster initialization unsuccessful on ${HOSTNAME}! <<"
+  exit 1
+fi

terraform/terraform.example.tfvars

@@ -0,0 +1,46 @@
+# Connection settings
+vsphere-user = "terraform"
+vsphere-password = "VMware1!"
+vsphere-server = "vcenter.lab.local"
+vsphere-unverified-ssl = "true"
+
+# Deployment options
+vsphere-datacenter = "Datacenter 01"
+vsphere-cluster = "cluster-01"
+vsphere-template-folder = "_Templates"
+vm-template-name = "k8s-u2004"
+vm-folder = "kubes"
+vm-datastore = "datastore-01"
+vm-network-name = "network-01"
+vm-network-address = "192.168.1.0/24"
+vm-network-gateway = "192.168.1.1"
+vm-network-dns-servers = ["192.168.1.5"]
+vm-domain = "lab.local"
+
+# Control plane specs
+vm-control-count = "3"
+vm-control-cpu = "2"
+vm-control-ram = "2048"
+vm-control-disk-size = "30"
+vm-control-ip-address-start = "60"
+vm-control-name = "k8s-control"
+
+# Worker specs
+vm-worker-count = "3"
+vm-worker-cpu = "1"
+vm-worker-ram = "1024"
+vm-worker-disk-size = "30"
+vm-worker-ip-address-start = "64"
+vm-worker-name = "k8s-worker"
+
+# Kubernetes specs
+k8s-version = "1.25.3"
+k8s-cluster-name = "vsphere-k8s"
+k8s-datastore = "datastore-01"
+k8s-pod-cidr = "10.244.0.0/16"
+k8s-service-cidr = "10.96.0.0/12"
+k8s-kubevip-version = "v0.5.6"
+k8s-controlplane-vip = "vsphere-k8s.lab.local"
+k8s-username = "admin"
+k8s-ssh-key-file = "../packer/packer_cache/ssh_private_key_packer.pem"
+

terraform/variables.tf

@@ -0,0 +1,196 @@
+# vSphere connection options
+
+variable "vsphere-user" {
+  type = string
+  description = "vSphere user name"
+}
+
+variable "vsphere-password" {
+  type = string
+  description = "vSphere password"
+}
+
+variable "vsphere-server" {
+  type = string
+  description = "vCenter server FQDN or IP"
+}
+
+variable "vsphere-unverified-ssl" {
+  type = string
+  description = "Allow connecting to vCenter with self-signed certificate (true/false)"
+}
+
+# Deployment options
+variable "vsphere-datacenter" {
+  type = string
+  description = "vSphere datacenter"
+}
+
+variable "vsphere-cluster" {
+  type = string
+  description = "vSphere cluster"
+  default = ""
+}
+
+variable "vsphere-template-folder" {
+  type = string
+  description = "Folder which holds the templates"
+}
+
+variable "vm-template-name" {
+  type = string
+  description = "Name of the template to be cloned"
+}
+
+variable "vm-folder" {
+  type = string
+  description = "Folder to hold the new VMs"
+}
+
+variable "vm-datastore" {
+  type = string
+  description = "vSphere datastore to hold the VMs"
+}
+
+variable "vm-network-name" {
+  type = string
+  description = "Network attached to the VMs"
+}
+
+variable "vm-network-address" {
+  type = string
+  description = "Network address with mask (ex: 192.168.1.0/24)"
+}
+
+variable "vm-network-gateway" {
+  type = string
+  description = "IPv4 gateway address"
+}
+
+variable "vm-network-dns-servers" {
+  type = list
+  description = "List of DNS servers"
+}
+
+variable "vm-domain" {
+  type = string
+  description = "Domain name for the VM"
+  default = ""
+}
+
+# Control plane specs
+variable "vm-control-count" {
+  type = string
+  description = "Number of control plane nodes"
+  default = "1"
+}
+
+variable "vm-control-cpu" {
+  type = string
+  description = "Number of vCPUs for the control plane node(s)"
+  default = "2"
+}
+
+variable "vm-control-ram" {
+  type = string
+  description = "Megabytes of RAM for the control plane node(s)"
+  default = "2048"
+}
+
+variable "vm-control-disk-size" {
+  type = string
+  description = "Gigabytes of storage for the control plane node(s) disk"
+}
+
+variable "vm-control-ip-address-start" {
+  type = string
+  description = "Last octet of the first IP available to control plane nodes"
+}
+
+variable "vm-control-name" {
+  type = string
+  description = "Base name of the control plane node(s)"
+}
+
+# Worker specs
+variable "vm-worker-count" {
+  type = string
+  description = "Number of worker nodes"
+  default = "2"
+}
+
+variable "vm-worker-cpu" {
+  type = string
+  description = "Number of vCPUs for the worker node(s)"
+  default = "1"
+}
+
+variable "vm-worker-ram" {
+  type = string
+  description = "Megabytes of RAM for the worker node(s)"
+  default = "1024"
+}
+
+variable "vm-worker-disk-size" {
+  type = string
+  description = "Gigabytes of storage for the worker node(s) disk"
+}
+
+variable "vm-worker-ip-address-start" {
+  type = string
+  description = "Last octet of the first IP available to worker nodes"
+}
+
+variable "vm-worker-name" {
+  type = string
+  description = "Base name of the worker node(s)"
+}
+
+# Kubernetes specs
+variable "k8s-version" {
+  type = string
+  description = "Numerical version of Kubernetes to be used"
+  default = "1.25.3"
+}
+
+variable "k8s-cluster-name" {
+  type = string
+  description = "Display name for the new cluster"
+}
+variable "k8s-datastore" {
+  type = string
+  description = "vSphere datastore to hold K8s persistent volumes"
+}
+
+variable "k8s-pod-cidr" {
+  type = string
+  description = "Network CIDR range used for pod networking (default: 10.244.0.0/16)"
+  default = "10.244.0.0/16"
+}
+
+variable "k8s-service-cidr" {
+  type = string
+  description = "Network CIDR range used for service networking (default: 10.96.0.0/12)"
+  default = "10.96.0.0/12"
+}
+
+variable "k8s-kubevip-version" {
+  type = string
+  description = "Version tag of the desired kube-vip release (ex: v0.5.6)"
+  default = "latest"
+}
+
+variable "k8s-controlplane-vip" {
+  type = string
+  description = "IP or FQDN to be assigned to the integrated kube-vip load balancer"
+}
+
+variable "k8s-username" {
+  type = string
+  description = "Username used to log in to the K8s nodes for cluster bootstrapping"
+}
+
+variable "k8s-ssh-key-file" {
+  type = string
+  description = "Path to a file containing the SSH private key used for cluster bootstrapping"
+}