使用 Ansible Playbook 构建 Docker 镜像（使用多目标 Dockerfile）

Question

Is there any option how to implement Docker command ( --target parameter)

docker build --target backend -t project/backend:latest

in Ansible Playbook with docker_image module? Right now in playbook:

- hosts: localhost
  tasks:
    - name: Build backend image
      docker_image:
        path: /var/lib/workspace/project/backend
        name: project/backend:latest

Answer 1

This worked for me.

---
- name: Copy Dockerfile
  copy: src=Dockerfile dest=/tmp/path/
- name: Build osquery image
    docker_image:
      path: /tmp/path/
      name: imagename
      tag: v1

Answer 2

In the current version of Ansible it is possible to define the target in docker_image .

Ansible Documentation - community.docker.docker_image

I think this should work for you

- hosts: localhost
  tasks:
    - name: Build backend image
      docker_image:
        path: /var/lib/workspace/project/backend
        name: project/backend:latest
        target: backend

When the Dockerfile is something like

FROM for-example-php-image AS baseimage 
# Common things

FROM baseimage AS backend
# Things needed only in backend