Docker Image Publish

A script to build, tag and publish docker images with version labels and dev suffix, base on the source git branch. It can be configured by env vars or pakege.json entries.

The env vars

• APP_NAME
• VERSION
• PRODUCTION_BRANCH
• DOCKER_REPO: can be a comma separated list of repositories.
• DOCKER_GROUP
• IS_LATEST: accepts true, false or empty.

The equivalent configuration in a pakege.json

{
  "name": "app-name", // Will be used if it's not a git repo with a remote named "origin".
  "version": "0.1.2",
  ...
  "docker-repo": "registry.example.com,gcr.io/my-id",
  "docker-group": "group-name",
  "production-branch": "master",
  "scripts": {
    ...
    "docker:build:info": "docker-build-info",
    "docker:build": "npm run -s build && docker-build",
    "docker:push": "docker-push",
    "docker:release": "npm run -s docker:build && docker-push",
    "docker:release:latest": "npm run -s docker:build --latest && docker-push --latest",
    "docker:run": ". docker-commom; docker run -p ${PORT:-8080}:80 $DOCKER_IMG",
    "docker:run:sh": ". docker-commom; docker run -p ${PORT:-8080}:80 -it $DOCKER_IMG sh",
  }
  ...
}

Optional features enabled by cli arguments

• --latest: Adds a "latest" tag to the publishing list.
• --append-commit-hash: Adds the current git's commit hash to the full version tag.
• --append-timestamp: Adds the current UTC time to the full version tag.

Using without installing

Useful for tasks inside GitLab-CI and other ephemeral environments.

curl https://ntopus.gitlab.io/docker-image-publish/publish.sh |
APP_NAME=my-app VERSION=0.0.0 PRODUCTION_BRANCH=main \
DOCKER_REPO=docker.io DOCKER_GROUP=my-name | sh -e

This will run docker-build-info && docker-build && docker-push

Debugging

If you want to know what you will get published, you can run docker-build-info with any optional argument. The generate tags will be used by docker-build and docker-push.

Running without arguments will result in something alike:

• From version 0.1.2 was parsed: MAJOR:0 MINOR:1 PATCH:2
• The production branch is master, so it has no sufix.
• It will building docker image: app-name:0.1.2
• The repos to publish are:
  • registry.example.com
  • gcr.io/my-id
• The tags are:
  • group-name/app-name:0
  • group-name/app-name:0.1
  • group-name/app-name:0.1.2