.dock

# Defines the environment variables, volumes, and ports that are important when
# developing and testing this repository.

# The project is used to define a canonical name for persistent storage
# volumes. This allows different executors for the same build project (which
# have different repos and container names) to point to the same volumes so gems
# can be reused (e.g. voter-verifier-json and voter-verifier-thrift both have
# the same project name "voter-verifier").
project=voter-verifier

dockerfile dock/development_Dockerfile
build_context dock # Directory to use as build context (relative to repo root)

# Whether or not we're running in a CI context
ci() {
  [ "${CI:-0}" = 1 ]
}
env_var CI "${CI:-0}"

# Ensure the container runs as the current user, otherwise the files in the git
# repo may have their ownership changed to root
env_var APP_UID $(user_id)
env_var APP_GID $(group_id)

# Allow our local SSH agent to be used within the container and ensure proper configuration for builds
if [ -n "${SSH_AUTH_SOCK+x}" ]; then
  volume "${SSH_AUTH_SOCK}:/tmp/ssh-auth-sock"
  env_var SSH_AUTH_SOCK /tmp/ssh-auth-sock
fi

# Mount user SSH configuration for deployments
volume "$HOME/.ssh:/home/app/.ssh"
volume "/etc/ssh/ssh_known_hosts:/etc/ssh/ssh_known_hosts:ro"

# Expose Docker Hub credentials if they exist
if [ -d "$HOME/.docker" ]; then
  volume "$HOME/.docker:/home/app/.docker"
fi

# Expose project network configurations (e.g. ports and interfaces) to host in
# development environment only (otherwise we may have conflicts if two tests run
# at the same time on a single build worker)
if ! ci; then
  # Define services to launch when the project is composed in an extended Dock, multi-project environment.
  # Services should be defined within a docker-compose.yml file associated with the project
  startup_services "voter-verifier"

  if osx; then
    # add to isolated network and publish ports of interest to host to workaround
    # https://forums.docker.com/t/should-docker-run-net-host-work/14215
    # TODO parametrize
    publish "9095:9095" # thrift-rpc
    publish "3000:3000" # rails-api
  else
    # share host network interface
    run_flags --network host
  fi

  # Store files that we like to reuse between runs (e.g. gems)
  volume "${project}_cache:/home/app/.cache"

  # Persist Dock modifications to /var/lib/docker in order to create a local
  # cache for Docker objects (e.g. images) when rebuilding Dock container
  volume "${container_name}_docker:/var/lib/docker:rw"
else
  # Add to isolated network
  run_flags --network bridge

  # Utilize test variants of services when in CI mode
  startup_services "voter-verifier_test"

  # Do not provide a 'named' volume to prevent persisting files (e.g. gems) between runs
  volume "/home/app/.cache"
fi

default_command dock/start-everything

# vim: filetype=sh