{
  "variables": {
	"name": "{{env `NAME`}}",
	"squashfs_file": "{{env `NAME`}}.squashfs",
	"initramfs_file": "{{env `NAME`}}.initramfs",
	"linux_file": "{{env `NAME`}}.linux",
	"compression_level": "{{env `COMPRESSION_LEVEL`}}",
	"images": "{{env `IMAGES`}}",
    "ci_job_id": "{{env `CI_JOB_ID`}}",
    "ci_commit_sha": "{{env `CI_COMMIT_SHA`}}",
    "ci_commit_tag": "{{env `CI_COMMIT_TAG`}}",
    "ci_commit_ref_name": "{{env `CI_COMMIT_REF_NAME`}}",
    "ci_commit_ref_slug": "{{env `CI_COMMIT_REF_SLUG`}}",
    "ci_job_name": "{{env `CI_JOB_NAME`}}",
    "ci_job_stage": "{{env `CI_JOB_STAGE`}}",
    "ci_project_url": "{{env `CI_PROJECT_URL`}}",
    "ci_pipeline_triggered": "{{env `PIPELINE_TRIGGERED`}}",
    "ci_job_manual": "{{env `CI_JOB_MANUAL`}}"
  },
  "builders":
  [
    {
      "type": "docker",
      "image": "debian:stretch",
      "discard": true,
	  "run_command": [
		  "-d",
		  "-i",
		  "-t",
		  "-v", "{{user `images`}}:/tmp/images",
		  "{{.Image}}",
		  "/bin/bash"
	  ]
    }
  ],
  "provisioners": [
    {
      "type": "shell",
      "inline": [ "mkdir -p /etc/initramfs-tools/scripts/local-premount/" ]
    },
    {
      "type": "file",
      "source": "initramfs/labsync",
      "destination": "/etc/initramfs-tools/scripts/"
    },
    {
      "type": "shell",
      "inline": [
        "echo \"LABSYNC_JOB_ID='{{user `ci_job_id`}}'\" >> /etc/environment",
        "echo \"LABSYNC_COMMIT_SHA='{{user `ci_commit_sha`}}'\" >> /etc/environment",
        "echo \"LABSYNC_COMMIT_TAG='{{user `ci_commit_tag`}}'\" >> /etc/environment",
        "echo \"LABSYNC_COMMIT_REF_NAME='{{user `ci_commit_ref_name`}}'\" >> /etc/environment",
        "echo \"LABSYNC_COMMIT_REF_SLUG='{{user `ci_commit_ref_slug`}}'\" >> /etc/environment",
        "echo \"LABSYNC_PROJECT_URL='{{user `ci_project_url`}}'\" >> /etc/environment",
        "sed -i 's#@@PROJECT_URL@@#{{user `ci_project_url`}}#' /etc/initramfs-tools/scripts/labsync"
      ]
    },
    {
      "type": "file",
      "source": "initramfs/labsync-prereqs",
      "destination": "/etc/initramfs-tools/scripts/local-premount/"
    },
    {
      "type": "shell",
      "inline": [
        "set -x",
        "apt-get update",
        "apt-get -y dist-upgrade",
        "rmdir /boot && ln -s /usr/local/boot /boot",
        "apt-get -y install initramfs-tools || true",
        "echo squashfs >> /etc/initramfs-tools/modules",
        "echo overlay >> /etc/initramfs-tools/modules",
        "echo 'RESUME=none' > /etc/initramfs-tools/conf.d/resume",
        "mkdir /usr/local/boot",
        "apt-get -f -y install aria2 linux-image-amd64 lvm2",
        "cp $(find /boot/ -name 'initrd.img-*' | sort -V | tail -n 1) '/tmp/images/{{user `initramfs_file`}}'",
        "cp $(find /boot/ -name 'vmlinuz-*' | sort -V | tail -n 1) '/tmp/images/{{user `linux_file`}}'"
      ]
    },
    {
      "type": "shell",
      "inline": [ "apt-get -y install openssh-server python" ]
    },
    {
      "type": "ansible",
      "playbook_file": "ansible/playbook.yml",
      "user": "root"
    },
    {
      "type": "shell",
      "inline": [ "rm /boot && mkdir /boot" ]
    },
    {
      "type": "shell",
      "inline": [
          "set -x",
		  "apt-get -y install squashfs-tools",
		  "dpkg -L squashfs-tools liblzo2-2 | while read f; do [ -f \"$f\" ] && echo \"$f\"; done > /tmp/ignore_files",
		  "echo '/etc/resolv.conf' >> /tmp/ignore_files",
		  "echo '/etc/hostname' >> /tmp/ignore_files",
		  "echo '/etc/hosts' >> /tmp/ignore_files",
		  "mkdir -p /tmp/extra/tmp /tmp/extra/proc /tmp/extra/sys /tmp/extra/etc"
	  ]
	},
    {
      "type": "file",
      "source": "hosts",
      "destination": "/tmp/extra/etc/hosts"
    },
	{
      "type": "shell",
      "inline": [
		  "if [ -e '/tmp/images/{{user `squashfs_file`}}' ]; then rm '/tmp/images/{{user `squashfs_file`}}'; fi",
		  "squashfs_content=\"$(find / -mindepth 1 -maxdepth 1 | grep -vE '^/(proc|sys|tmp|[.]dockerenv|packer-files)$')\"",
		  "mksquashfs $squashfs_content /tmp/extra/* '/tmp/images/{{user `squashfs_file`}}' -comp lzo -Xcompression-level {{user `compression_level`}} -ef /tmp/ignore_files"
	  ]
    }
  ]
}