d

#!/usr/bin/env bash

# Docker utilities - d

set -o errexit

declare self applocation dockerreg tag
self=$(basename "$0")
applocation=router
dockerreg=https://docker.pkg.github.com
tag=docker.pkg.github.com/OWNER/REPOSITORY/s4mock:latest

usage() {
  cat <<EOF
Usage: $self <action>

where <action> is one of:
- login: login to GitHub Packages
- build: create the Docker image
- run: run a container locally based on the image
- publish: publish the image to GitHub
EOF
}

login() {
  local user pass
  echo Authenticating with GitHub Packages
  read -r -p "Enter username: " user
  read -r -s -p "Enter password / token: " pass
  echo
  echo -n "$pass" \
    | docker login $dockerreg \
      --username "$user" \
      --password-stdin
}


build() {
  echo Building image for "$applocation"
  docker build \
    -t $tag \
    -f ./Dockerfile \
    $applocation
}

run() {
  echo Running detached instance of image locally
  docker run \
    -d \
    -p 5000:5000 \
    $tag
}

publish() {
  echo Publishing image to GitHub Packages
  docker push \
    $tag
}

main() {
  local action=$1
  case $action in
    login|build|run|publish)
      $action
      ;;
    *)
      usage
      exit 1
  esac
}

main "$@"