coder-templates/nix-docker/main.jsonnet

local inka = import 'inka/main.libsonnet';
local docker = import 'docker/main.libsonnet';
local coder = import 'coder/main.libsonnet';

{
  requirements: {
    docker: docker.provider.require(),
    coder: coder.provider.require(),
  },
  providers: {
    docker: docker.provider.new(),
    coder: coder.provider.new(),
  },
  parameters: {
    cpu: coder.data.parameter.new(
      'cpu', name='CPU [cores]', default=2048, mutable=true, icon='/icon/memory.svg',
      option=[
        coder.data.parameter.option.new('1 Core', value=1024),
        coder.data.parameter.option.new('2 Cores', value=2048),
        coder.data.parameter.option.new('4 Cores', value=4096),
      ],
    ),
    memory: coder.data.parameter.new(
      'memory', name='Memory [GB]', default=1024, mutable=true, icon='/icon/memory.svg',
      option=[
        coder.data.parameter.option.new('1GB', value=1024),
        coder.data.parameter.option.new('2GB', value=2048),
        coder.data.parameter.option.new('4GB', value=4096),
      ],
    ),
    git_repo: coder.data.parameter.new(
      'git_repo', name='Git Repository', default='', type='string', mutable=true,
    ),
    #home_disk_size: coder.data.parameter.new(
    #  'home_disk_size', name='Home disk size [GB]', default=10, type='number',
    #  mutable=false,  icon='/emojis/1f4be.png',
    #  validation=[
    #    coder.data.parameter.validation.new(min=1, max=100),
    #  ],
    #),
  },
  coder: {
    auth: coder.data.git_auth.new('git_auth', { id: 'primary-gitlab', }),
    provisioner: coder.data.provisioner.new('me'),
    workspace: coder.data.workspace.new('me'),
    agent: coder.agent.new(
      'main', arch=self.provisioner.arch, os='linux', login_before_ready=false,
      startup_script_timeout=180,
      startup_script=|||
        # install direnv & code-server
        nix-env -iA nixpkgs.direnv nixpkgs.code-server
        code-server --auth none --port 13337 >/tmp/code-server.log 2>&1 &
      |||,
    ),
    code_server: coder.app.new(
      'code-server', agent_id=self.agent.id, slug='code-server',
      display_name='Code Server', icon='/icon/code.svg', share='owner',
      url='http://localhost:13337/?folder=/home/%s' % self.workspace.owner,
      subdomain=false, healthcheck=[
        coder.app.healthcheck.new(url='http://localhost:13337/healthz', interval=5, threshold=6),
      ],
    ),
  },
  docker: {
    volume: docker.volume.new(
      'home', name='coder-%s-home' % $.coder.workspace.id,
      # not always supported
      #driver_opts={ size: '%sG' % $.parameters.home_disk_size.value },
      labels=[
        docker.volume.labels.new('coder.owner', $.coder.workspace.owner),
        docker.volume.labels.new('coder.owner_id', $.coder.workspace.owner_id),
        docker.volume.labels.new('coder.workspace_id', $.coder.workspace.id),
        docker.volume.labels.new('coder.workspace_name_at_creation', $.coder.workspace.name),
      ],
      _extra={
        lifecycle: [{ ignore_changes: 'all' }],
      }
    ),
    container: docker.container.new(
      'workspace', name='coder-%s-workspace' % $.coder.workspace.id, cpu_shares=$.parameters.cpu.value,
      memory=$.parameters.memory.value, image='nixos/nix:latest', hostname=$.coder.workspace.name,
      entrypoint=[
        'sh',
        '-c',
        inka.functions.replace(
          $.coder.agent.init_script,
          '"/localhost|127.0.0.1/"',
          '"host.docker.internal"',
        ),
      ],
      #runtime='sysbox-runc', storage_opts={ size: '10G' },
      env=[
        'CODER_AGENT_TOKEN=%s' % $.coder.agent.token,
      ],
      host=[
        docker.container.host.new('host.docker.internal', 'host-gateway')
      ],
      volumes=[
        docker.container.volumes.new(
          container_path='/home/%s' % $.coder.workspace.owner, volume_name=self.volume.name, read_only=false,
        ),
      ],
      labels=[
        docker.container.labels.new('coder.owner', $.coder.workspace.owner),
        docker.container.labels.new('coder.owner_id', $.coder.workspace.owner_id),
        docker.container.labels.new('coder.workspace_id', $.coder.workspace.id),
        docker.container.labels.new('coder.workspace_name_at_creation', $.coder.workspace.name),
      ],
    ),
  },
}