There are official Github Actions for Docker related tasks: https://github.com/actions/docker. However it's too slow to have multiple actions that pull & run multiple docker images for those actions one by one. Especially when you are doing simple "build & push" most of the time.

This Github Action does a fixed list of actions:

1. (optional) filter the branch for action
2. login to your Docker Registry
3. build your docker image
4. tag the image with latest, sha of the commit, ref of the commit, or your own tag
5. push all tags of the image to your registry

Such that you don't have to run 5 different actions, which require the same environment setup (basically Docker) to be repeated again and again.

Arguments passed to the action will be passed to the docker build process. If the argument is left empty, then the docker build process run with the default mode

Below are the required Secrets / Env:

• DOCKER_USERNAME - the username used to log in to your Docker registry.
• DOCKER_PASSWORD - the password used to log in to your Docker registry.

Below are the optional Secrets / Env:

• BRANCH_FILTER - the branch to allow the action, default to allow all branches
• DOCKER_REGISTRY_URL - the registry to login & push image to, default to be Docker Hub
• DOCKER_NAMESPACE - the namespace on the registry, default to be your Github username
• DOCKER_IMAGE_NAME - the name of the docker image to be built, default to be the namge of the Github repository
• DOCKER_IMAGE_TAG - the tag of the docker image to be pushed, default to be 3 tags (latest, sha of the commit, ref of the commit)

Below are some additional optional env:

• DOCKER_TAG_APPEND - if this value is set, the default ref tag will be appended with this value (e.g. DOCKER_TAG_APPEND=asia-business for a git master branch push will produce this docker image tag: master_asia-business)

• simple use case: build image with default tags and push to Docker Hub, where your account name is the same as Github

action "build-and-push-to-docker-hub" {
  uses = "pangzineng/Github-Action-One-Click-Docker@master"
  secrets = [
    "DOCKER_USERNAME", 
    "DOCKER_PASSWORD"
  ]
}

• advance use case: custom build path, custom tag and custom private registry with custom namespace

action "build-and-push-to-my-registry" {
  uses = "pangzineng/Github-Action-One-Click-Docker@master"
  args = "-f my.Dockerfile ./my/custom/folder/"
  secrets = [
    "DOCKER_USERNAME", 
    "DOCKER_PASSWORD", 
    "DOCKER_REGISTRY_URL", 
    "DOCKER_NAMESPACE"
  ]
  env = {
    BRANCH_FILTER = "prod/release"
    DOCKER_IMAGE_NAME = "my-image-name"
    DOCKER_IMAGE_TAG = "my-image-tag"
  }
}