agent-image.json

{
  "variables": {
    "client_id": "{{env `ARM_CLIENT_ID`}}",
    "client_secret": "{{env `ARM_CLIENT_SECRET`}}",
    "subscription_id": "{{env `ARM_SUBSCRIPTION_ID`}}",
    "tenant_id": "{{env `ARM_TENANT_ID`}}"
  },
  "builders": [
    {
      "type": "azure-arm",
      "subscription_id": "{{user `subscription_id`}}",
      "tenant_id": "{{user `tenant_id`}}",
      "client_id": "{{user `client_id`}}",
      "client_secret": "{{user `client_secret`}}",

      "managed_image_name": "build-agent-image",
      "managed_image_resource_group_name": "vmss-build-pool",

      "os_type": "Linux",
      "image_publisher": "Canonical",
      "image_offer": "UbuntuServer",
      "image_sku": "18.04-LTS",
      "location": "West Europe",
      "vm_size": "Standard_D2s_v3"
    }
  ],
  "provisioners": [
    {
      "type": "file",
      "source": "start-agent.sh",
      "destination": "/tmp/start-agent.sh"
    },
    {
      "execute_command": "chmod +x {{ .Path }}; {{ .Vars }} sudo -E /bin/bash -x '{{ .Path }}'",
      "script": "install-build-agent.sh",
      "type": "shell"
    },
    {
      "execute_command": "chmod +x {{ .Path }}; {{ .Vars }} sudo -E sh '{{ .Path }}'",
      "inline": [
        "/usr/sbin/waagent -force -deprovision+user && export HISTSIZE=0 && sync"
      ],
      "inline_shebang": "/bin/sh -x",
      "type": "shell"
    }
  ]
}