Docker

Push container images to Docker Hub, GitHub Container Registry, AWS ECR, or any OCI-compliant registry.

Configuration

publishers:
  - type: docker
    registry: ghcr.io
    image: org/myapp

Options

Option	Description	Default
registry	Registry hostname	docker.io
image	Image name	Project name
platforms	Target platforms	linux/amd64
tags	Image tags	latest, version
dockerfile	Dockerfile path	Dockerfile
context	Build context	.

Examples

GitHub Container Registry

publishers:
  - type: docker
    registry: ghcr.io
    image: host-uk/myapp
    platforms:
      - linux/amd64
      - linux/arm64
    tags:
      - latest
      - "{{ .Version }}"
      - "{{ .Major }}.{{ .Minor }}"

Docker Hub

publishers:
  - type: docker
    image: myorg/myapp
    tags:
      - latest
      - "{{ .Version }}"

AWS ECR

publishers:
  - type: docker
    registry: 123456789.dkr.ecr.eu-west-1.amazonaws.com
    image: myapp

Multi-Platform Build

publishers:
  - type: docker
    platforms:
      - linux/amd64
      - linux/arm64
      - linux/arm/v7

Environment Variables

Variable	Description
DOCKER_USERNAME	Registry username
DOCKER_PASSWORD	Registry password or token
AWS_ACCESS_KEY_ID	AWS credentials (for ECR)
AWS_SECRET_ACCESS_KEY	AWS credentials (for ECR)

Tag Templates

Template	Example
.Version	1.2.3
.Major	1
.Minor	2
.Patch	3
.Major + .Minor	1.2

Templates use Go template syntax with double braces.