Add support for CentOS Stream 8

[tenthirtyam]

Description

The future of the CentOS Project is CentOS Stream, and over the next year we’ll be shifting focus from CentOS Linux, the rebuild of Red Hat Enterprise Linux (RHEL), to CentOS Stream, which tracks just ahead of a current RHEL release.

Read the rest of the announcement.

Use Case(s)

CentOS Linux 8, as a rebuild of RHEL 8, will end at the end of 2021. CentOS Stream continues after that date, serving as the upstream development branch of Red Hat Enterprise Linux.

Potential Configuration

# Maintainer: [email protected]
# Packer template for CentOS Stream 8.
# https://www.packer.io/docs/builders/vsphere/vsphere-iso

##################################################################################
# PACKER
##################################################################################

packer {
  required_version = ">= 1.7.3"
}

##################################################################################
# VARIABLES
##################################################################################

# Credentials.

variable "vcenter_username" {
  type    = string
  description = "The username to login to the vCenter Server instance. (e.g. [email protected])"
  default = ""
  sensitive = true
}

variable "vcenter_password" {
  type      = string
  description = "The password for the login to the vCenter Server instance."
  default = ""
  sensitive = true
}

variable "build_username" {
  type    = string
  description = "The username to login to the guest operating system. (e.g. rainpole)"
  default = ""
  sensitive = true
}

variable "build_password" {
  type    = string
  description = "The password to login to the guest operating system."
  default = ""
  sensitive = true
}

# vSphere Objects

variable "vcenter_insecure_connection" {
  type    = bool
  description = "Do not validate vCenter Server TLS certificate."
  default = true
}

variable "vcenter_server" {
  type    = string
  description = "The fully qualified domain name or IP address of the vCenter Server instance. (e.g. 'sfo-w01-vc01.sfo.rainpole.io')"
  default = ""
}

variable "vcenter_datacenter" {
  type    = string
  description = "The name of the target vSphere datacenter. (e.g. 'sfo-w01-dc01')"
  default = ""
}

variable "vcenter_cluster" {
  type    = string
  description = "The name of the target vSphere cluster. (e.g. 'sfo-w01-cl01')"
  default = ""
}

variable "vcenter_datastore" {
  type    = string
  description = "The name of the target vSphere datastore. (e.g. 'sfo-w01-cl01-vsan01')"
  default = ""
}

variable "vcenter_network" {
  type    = string
  description = "The name of the target vSphere network segment. (e.g. 'sfo-w01-dhcp')"
  default = ""
}

variable "vcenter_folder" {
  type    = string
  description = "The name of the target vSphere cluster. (e.g. 'sfo-w01-fd-templates')"
  default = ""
}

variable "vcenter_content_library" {
  type    = string
  description = "The name of the target vSphere content library, if used. (e.g. 'sfo-w01-cl01-lib01')"
  default = ""
}

# ISO Objects

variable "iso_datastore" {
  type    = string
  description = "The name of the source vSphere datastore for ISO images. (e.g. 'sfo-w01-cl01-nfs01')"
  default = ""
  }

variable "iso_path" {
  type    = string
  description = "The path on the source vSphere datastore for ISO images. (e.g. 'iso')"
  default = ""
  }

variable "iso_file" {
  type    = string
  description = "The file name of the ISO image. (e.g. 'iso-centos-stream-8.iso')"
  default = ""
}

variable "iso_checksum" {
  type    = string
  description = "The SHA-512 checkcum of the ISO image. (e.g. Result of 'shasum -a 512 iso-centos-stream-8.iso')"
  default = ""
}

# HTTP Endpoint for Kickstart

variable "http_directory" {
  type    = string
  description = "The HTTP endpoint directory path. (e.g. ../../../configs/linux/centos-server/)"
  default = ""
}

variable "http_file" {
  type    = string
  description = "The guest operating system kickstart file. (e.g. ks.cfg)"
  default = ""
}

# Virtual Machine Settings

variable "vm_guest_os_family" {
  type    = string
  description = "The guest operatiing system family. Used for naming and VMware tools. (e.g.'linux')"
  default = ""
}

variable "vm_guest_os_vendor" {
  type    = string
  description = "The guest operatiing system vendor. Used for naming . (e.g. 'centos')"
  default = ""
}

variable "vm_guest_os_member" {
  type    = string
  description = "The guest operatiing system member. Used for naming. (e.g. 'stream')"
  default = ""
}

variable "vm_guest_os_version" {
  type    = string
  description = "The guest operatiing system version. Used for naming. (e.g. '8')"
  default = ""
}

variable "vm_guest_os_type" {
  type    = string
  description = "The guest operating system type, also know as guestid. (e.g. 'centos8_64Guest')"
  default = ""
}

variable "vm_version" {
  type    = number
  description = "The vSphere virtual hardware version. Refer to https://kb.vmware.com/kb/1003746. (e.g. '18')"
  default = 18
}

variable "vm_firmware" {
  type    = string
  description = "The virtual machine firmware. (e.g. 'bios' or 'efi')"
  default = "bios"
}

variable "vm_cdrom_type" {
  type    = string
  description = "The virtual machine CD-ROM type. (e.g. 'sata', or 'ide')"
  default = "sata"
}

variable "vm_cpu_sockets" {
  type    = number
  description = "The number of virtual CPUs sockets. (e.g. '2')"
  default = 2
}

variable "vm_cpu_cores" {
  type    = number
  description = "The number of virtual CPUs cores per socket. (e.g. '1')"
  default = 1
}

variable "vm_mem_size" {
  type    = number
  description = "The size for the virtual memory in MB. (e.g. '2048')"
  default = 2048
}

variable "vm_disk_size" {
  type    = number
  description = "The size for the virtual disk in MB. (e.g. '40960')"
  default = 40960
}

variable "vm_disk_controller_type" {
  type    = list(string)
  description = "The virtual disk controller types in sequence. (e.g. 'pvscsi')"
  default = ["pvscsi"]
}

variable "vm_network_card" {
  type    = string
  description = "The virtual network card type. (e.g. 'vmxnet3' or 'e1000e')"
  default = "vmxnet3"
}

variable "vm_boot_wait" {
  type    = string
  description = "The time to wait before boot. "
  default = "2s"
}

variable "shell_scripts" {
  type    = list(string)
  description = "A list of script and their relative paths to transfer and execute using SSH."
  default = []
}

##################################################################################
# LOCALS
##################################################################################

locals { 
  buildtime = formatdate("YYYY-MM-DD hh:mm ZZZ", timestamp())
  }

##################################################################################
# SOURCE
##################################################################################

source "vsphere-iso" "linux-centos-stream" {
  vcenter_server       = var.vcenter_server
  username             = var.vcenter_username
  password             = var.vcenter_password
  datacenter           = var.vcenter_datacenter
  cluster              = var.vcenter_cluster
  datastore            = var.vcenter_datastore
  folder               = var.vcenter_folder
  insecure_connection  = var.vcenter_insecure_connection
  tools_upgrade_policy = true
  remove_cdrom         = true
  convert_to_template  = true
  guest_os_type        = var.vm_guest_os_type
  vm_version           = var.vm_version
  notes                = "Built by HashiCorp Packer on ${local.buildtime}."
  vm_name              = "${var.vm_guest_os_family}-${var.vm_guest_os_vendor}-${var.vm_guest_os_member}-${var.vm_guest_os_version}"
  firmware             = var.vm_firmware
  CPUs                 = var.vm_cpu_sockets
  cpu_cores            = var.vm_cpu_cores
  CPU_hot_plug         = false
  RAM                  = var.vm_mem_size
  RAM_hot_plug         = false
  cdrom_type           = var.vm_cdrom_type
  disk_controller_type = var.vm_disk_controller_type
  storage {
    disk_size             = var.vm_disk_size
    disk_controller_index = 0
    disk_thin_provisioned = true
  }
  network_adapters {
    network      = var.vcenter_network
    network_card = var.vm_network_card
  }
  iso_paths                = ["${ var.iso_datastore }${ var.iso_path }/${ var.iso_file }"]
  iso_checksum             = "sha512:var.iso_checksum"
  http_directory           = var.http_directory
  boot_order               = "disk,cdrom"
  boot_wait                = var.vm_boot_wait
  boot_command             = ["<tab>","text ks=http:https://{{ .HTTPIP }}:{{ .HTTPPort }}/${var.http_file}","<enter><wait>"]
  ip_wait_timeout          = "20m"
  ssh_password             = var.build_password
  ssh_username             = var.build_username
  ssh_port                 = 22
  ssh_timeout              = "20m"
  ssh_handshake_attempts   = "20"
  shutdown_command         = "echo '${var.build_password}' | sudo -S -E shutdown -P now"
  shutdown_timeout         = "15m"
  /*
  Comment or remove the option below to exclude the use of the vSphere content library.
  - If ovf = true - the virtual machine image is exported to the target content library.
  - If destroy = true - the virtual machine image is destroyed after a successfully exported the target content library
  - By default, the target name is the vm_name unless name = "foo" is provided.
  - The content library item is updated if the target name is the same. 
  */
  content_library_destination {
    library = var.vcenter_content_library
    ovf     = true
    destroy = true
  }
}

##################################################################################
# BUILD
##################################################################################

build {
  sources = ["source.vsphere-iso.linux-centos-server"]
  /*
  Uses the File Provisioner to copy the public key.
  - The Shell Provisioner will execute a script that imports the public key to authorized_keys to the build user.
  */ 
  provisioner "file" {
    destination = "/tmp/id_ecdsa.pub"
    source = "../../../keys/id_ecdsa.pub"
  }
  /*
  Uses the File Provisioner to copy the .crt certificate for the Root Certificate Authority.
  - The Shell Provisioner will execute a script that imports the certificate to the Certificate Authority Trust.
  */ 
   provisioner "file" {
    destination = "/tmp/root-ca.crt"
    source = "../../../certificates/root-ca.crt"
  }
  // Uses the Shell Provisioner to execute a series of inline commands defined in the variables
  provisioner "shell" {
    execute_command = "echo '${var.build_password}' | {{.Vars}} sudo -E -S sh -eux '{{.Path}}'"
    environment_vars = [
      "BUILD_USERNAME=${var.build_username}"
    ]
    scripts = var.shell_scripts
  }
}

and

# Maintainer: [email protected]
# Packer template for CentOS Stream 8.

##################################################################################
# VARIABLES
##################################################################################

# HTTP Endpoint for Kickstart

http_directory = "../../../configs/linux/centos-server"
http_file      = "ks-v8.cfg"

# Virtual Machine Settings

vm_guest_os_family          = "linux" 
vm_guest_os_vendor          = "centos"
vm_guest_os_member          = "stream" 
vm_guest_os_version         = "8" 
vm_guest_os_type            = "centos8_64Guest" 
vm_version                  = 18
vm_firmware                 = "bios"
vm_cdrom_type               = "sata"
vm_cpu_sockets              = 2
vm_cpu_cores                = 1
vm_mem_size                 = 2048
vm_disk_size                = 40960
vm_disk_controller_type     = ["pvscsi"]
vm_network_card             = "vmxnet3"
vm_boot_wait                = "2s"

# ISO Objects

iso_file     = "iso-linux-centos-stream-8.iso"
iso_checksum = "552cf5dcdc9d3db41791a2b3bbbd18335d75607ca54e7aa8bf28a6ea1d49ce914a55da0bd839123aa96654b7de6db65cc786beb71e6233982ea96ce456a47035"

# Scripts

shell_scripts = ["../../../scripts/linux/centos-stream-cleanup.sh"]

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[tenthirtyam]

Enhancement for supporting CentOS Stream 8 Server committed.

[github-actions]

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