actions/docker/push/action.yaml

name: Push docker image

inputs:
  registry:
    required: false
    type: string
    default: $GITHUB_SERVER_URL
  registry_user:
    required: false
    type: string
    default: $GITHUB_ACTOR
  registry_pass:
    required: true
    type: string
  image:
    required: true
    type: string
    default: $GITHUB_REPOSITORY
  tag:
    required: false
    type: string

runs:
  using: composite
  steps:

    - name: Push image
      run: |
        TAG=$([ -n "${{inputs.tag}}" ] && echo "${{inputs.tag}}" || [ "$GITHUB_REF" == "refs/heads/develop" ] && echo "latest" || echo "$GITHUB_REF_NAME" | sed -E "s/[_/]/-/g")
        echo "${{inputs.registry_pass}}" | docker login -u "${{inputs.registry_user}}" --password-stdin "${{inputs.registry}}"
        REG=$(echo "${{inputs.registry}}" | sed -E "s%https?://%%gi")
        docker push "$REG/${{inputs.image}}:$TAG"