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|
# Run a build step in a container or directly on the Actions runner
name: Download or Build Container
description: Download a container from the package registry, or build it if it's not found
inputs:
container:
description: Container name
type: string
required: true
dockerfile:
description: Dockerfile
type: string
base:
description: Container base
type: string
registry:
description: Docker registry to read and publish to
type: string
default: ghcr.io
config-path:
description: Path to Dockerfiles
type: string
github_token:
description: GitHub Token
type: string
runs:
using: 'composite'
steps:
- name: Download container
run: |
IMAGE_NAME="${{ inputs.container }}"
DOCKERFILE_PATH="${{ inputs.dockerfile }}"
DOCKER_REGISTRY="${{ inputs.registry }}"
DOCKERFILE_ROOT="${{ inputs.config-path }}"
if [ "${DOCKERFILE_PATH}" = "" ]; then
DOCKERFILE_PATH="${DOCKERFILE_ROOT}/${IMAGE_NAME}"
else
DOCKERFILE_PATH="${DOCKERFILE_ROOT}/${DOCKERFILE_PATH}"
fi
GIT_WORKTREE=$(cd "${GITHUB_ACTION_PATH}" && git rev-parse --show-toplevel)
echo "::: git worktree is ${GIT_WORKTREE}"
cd "${GIT_WORKTREE}"
DOCKER_CONTAINER="${GITHUB_REPOSITORY}/${IMAGE_NAME}"
DOCKER_REGISTRY_CONTAINER="${DOCKER_REGISTRY}/${DOCKER_CONTAINER}"
echo "dockerfile=${DOCKERFILE_PATH}" >> $GITHUB_ENV
echo "docker-container=${DOCKER_CONTAINER}" >> $GITHUB_ENV
echo "docker-registry-container=${DOCKER_REGISTRY_CONTAINER}" >> $GITHUB_ENV
# Identify the last git commit that touched the Dockerfiles
# Use this as a hash to identify the resulting docker containers
echo "::: dockerfile path is ${DOCKERFILE_PATH}"
DOCKER_SHA=$(git log -1 --pretty=format:"%h" -- "${DOCKERFILE_PATH}")
echo "docker-sha=${DOCKER_SHA}" >> $GITHUB_ENV
echo "::: docker sha is ${DOCKER_SHA}"
DOCKER_REGISTRY_CONTAINER_SHA="${DOCKER_REGISTRY_CONTAINER}:${DOCKER_SHA}"
echo "docker-registry-container-sha=${DOCKER_REGISTRY_CONTAINER_SHA}" >> $GITHUB_ENV
echo "docker-registry-container-latest=${DOCKER_REGISTRY_CONTAINER}:latest" >> $GITHUB_ENV
echo "::: logging in to ${DOCKER_REGISTRY} as ${GITHUB_ACTOR}"
exists="true"
docker login https://${DOCKER_REGISTRY} -u ${GITHUB_ACTOR} -p ${GITHUB_TOKEN} || exists="false"
echo "::: pulling ${DOCKER_REGISTRY_CONTAINER_SHA}"
if [ "${exists}" != "false" ]; then
docker pull ${DOCKER_REGISTRY_CONTAINER_SHA} || exists="false"
fi
if [ "${exists}" = "true" ]; then
echo "::: docker container exists in registry"
echo "docker-container-exists=true" >> $GITHUB_ENV
else
echo "::: docker container does not exist in registry"
echo "docker-container-exists=false" >> $GITHUB_ENV
fi
shell: bash
env:
GITHUB_TOKEN: ${{ inputs.github_token }}
- name: Create container
run: |
if [ "${{ inputs.base }}" != "" ]; then
BASE_ARG="--build-arg BASE=${{ inputs.base }}"
fi
GIT_WORKTREE=$(cd "${GITHUB_ACTION_PATH}" && git rev-parse --show-toplevel)
echo "::: git worktree is ${GIT_WORKTREE}"
cd "${GIT_WORKTREE}"
docker build -t ${{ env.docker-registry-container-sha }} --build-arg UID=$(id -u) --build-arg GID=$(id -g) ${BASE_ARG} -f ${{ env.dockerfile }} .
docker tag ${{ env.docker-registry-container-sha }} ${{ env.docker-registry-container-latest }}
shell: bash
working-directory: source/${{ inputs.config-path }}
if: env.docker-container-exists != 'true'
- name: Publish container
run: |
docker push ${{ env.docker-registry-container-sha }}
docker push ${{ env.docker-registry-container-latest }}
shell: bash
if: env.docker-container-exists != 'true' && github.event_name != 'pull_request'
|
