Ansible：没有可用于 docker-ce 的软件包

Question

我想在装有 Ubuntu 16.04 的远程机器上安装 Docker，使用 Ansible 并遵循https://docs.docker.com/engine/installation/linux/ubuntu/ 的官方文档。 一切似乎都正常，直到 ansible 到达名为“安装 Docker”的任务，我得到“没有与 'docker-ce' 匹配的包可用”。

剧本的以下部分，从存储库的设置点开始：

- name: set the stable repository
    apt_repository: 
      repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable
      

  - name: Update all packages to the latest version
    apt:
      upgrade: dist

  - name: install Docker
    apt:
      name: docker-ce
      state: present

可能是什么问题？

Answer 1

我知道你正在搜索ubuntu安装，但是对于其他用户（正如我之前搜索过的），我将分享我的centos版本（运行）：

---
- name: Install docker
  gather_facts: true
  check_mode: no # yes only for test
  hosts: swarm_cluster
  vars:
    sudoers:
      - ansible
  become: true
  tasks:

    #################### ABSENT ########################
# systemctl status docker
    - name: Stop and disable docker service
      service:
        name: docker
        enabled: no
        state: stopped
      register: docker_service_result
      failed_when: "docker_service_result is failed and 'Could not find the requested service' not in docker_service_result.msg"

# grep /etc/group -e "docker"
    - name: Remove docker group
      group:
        name: docker
        state: absent
        system: yes

    - name: Remove 'docker', 'yum-utils', 'lvm2' and 'device-mapper-persistent-data' packages
      package:
        name: '{{ item }}'
        state: absent
      with_items:
        - docker
        - docker-client
        - docker-client-latest
        - docker-common
        - docker-latest
        - docker-latest-logrotate
        - docker-logrotate
        - docker-engine
        - docker-ce
        - docker-ce-cli
        - containerd.io
        - lvm2
        - device-mapper-persistent-data
        - yum-utils

# sudo vi /etc/yum.repos.d/docker-ce.repo
    - name: Remove docker repository
      yum_repository:
        name: docker-ce
        state: absent

#################### PRESENT ########################
    - name: Install 'yum-utils', 'lvm2' and 'device-mapper-persistent-data'
      package:
        name: '{{ item }}'
        state: latest
      with_items:
        - yum-utils
        - device-mapper-persistent-data
        - lvm2

    - name: Install docker repository
      yum_repository:
        name: '{{ item.name }}'
        description: '{{ item.desc }}'
        file: docker-ce
        baseurl: '{{ item.baseurl }}'
        enabled: '1'
        gpgcheck: yes
        gpgkey: 'https://download.docker.com/linux/centos/gpg'
        state: present
      with_items:
        - { name: 'docker-ce-stable', desc: 'Docker CE Stable - $basearch', baseurl: 'https://download.docker.com/linux/centos/7/$basearch/stable'}
        - { name: 'docker-ce-edge', desc: 'Docker CE Edge - $basearch', baseurl: 'https://download.docker.com/linux/centos/7/$basearch/edge'}
        - { name: 'docker-ce-test', desc: 'Docker CE Test - $basearch', baseurl: 'https://download.docker.com/linux/centos/7/$basearch/test'}

    - name: Install docker
      package:
        name: '{{ item }}'
        state: latest
      with_items:
        - docker-ce
        - docker-ce-cli
        - containerd.io

    - name: Start docker service
      service:
        name: docker
        state: started
        enabled: yes

    - name: Test Docker with hello world example
      shell: 'docker run hello-world'
      register: hello_world_output

    - name: Show output of hello word example
      debug:
        msg: 'Container output: {{ hello_world_output.stdout }}'

    - name: Create docker group
      group:
        name: docker
        state: present
        system: yes

    - name: Add ansible to docker group
      user:
        name: ansible
        groups: docker
        append: yes

    - name: Reboot server
      shell: 'sleep 1 && reboot'
      async: 1
      poll: 0

Answer 2

你需要跑

sudo apt-get install apt-transport-https ca-certificates curl software-properties-common curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add - sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu xenial stable" sudo apt-get update sudo apt-get install docker-ce

Answer 3

问题是 apt 存储库添加不正确。以下行实际上是添加 $(lsb_release -cs) 并且没有插值：

repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable

你想要的是像这样使用 Ansible 事实：

repo: deb [arch=amd64] https://download.docker.com/linux/ubuntu {{ ansible_lsb.codename }} stable

这应该会在/etc/apt/sources.list.d/download_docker_com_repo.list 文件中为您提供以下信息：

deb [arch=amd64] https://download.docker.com/linux/ubuntu trusty stable

注意：您可能还需要apt_key 来导入 GPG 密钥（根据安装说明）。

Answer 4

或者，如果 Ansible 版本 >= 2.0，您可以使用通用操作系统包管理器模块：

- name: install docker
  package:
    name: docker-ce
    state: present

Answer 5

你没有运行 apt-get update，所以新的 repo 没有被读取