c12s-kubespray/roles/container-engine/docker/tasks/main.yml

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---
- name: check if atomic host
stat:
path: /run/ostree-booted
register: ostree
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- name: set is_atomic
set_fact:
is_atomic: "{{ ostree.stat.exists }}"
- name: gather os specific variables
include_vars: "{{ item }}"
with_first_found:
- files:
- "{{ ansible_distribution|lower }}-{{ ansible_distribution_version|lower|replace('/', '_') }}.yml"
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- "{{ ansible_distribution|lower }}-{{ ansible_distribution_release|lower }}-{{ host_architecture }}.yml"
- "{{ ansible_distribution|lower }}-{{ ansible_distribution_release|lower }}.yml"
- "{{ ansible_distribution|lower }}-{{ ansible_distribution_major_version|lower|replace('/', '_') }}.yml"
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- "{{ ansible_distribution|lower }}-{{ host_architecture }}.yml"
- "{{ ansible_distribution|lower }}.yml"
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- "{{ ansible_os_family|lower }}-{{ host_architecture }}.yml"
- "{{ ansible_os_family|lower }}.yml"
- defaults.yml
paths:
- ../vars
skip: true
tags:
- facts
- name: Warn about Docker version on SUSE
debug:
msg: "SUSE distributions always install Docker from the distro repos"
when: ansible_pkg_mgr == 'zypper'
- include_tasks: set_facts_dns.yml
when: dns_mode != 'none' and resolvconf_mode == 'docker_dns'
tags:
- facts
- name: check for minimum kernel version
fail:
msg: >
docker requires a minimum kernel version of
{{ docker_kernel_min_version }} on
{{ ansible_distribution }}-{{ ansible_distribution_version }}
when: (not ansible_os_family in ["CoreOS", "Container Linux by CoreOS", "ClearLinux"]) and (ansible_kernel is version(docker_kernel_min_version, "<"))
tags:
- facts
- import_tasks: pre-upgrade.yml
- name: ensure docker-ce repository public key is installed
action: "{{ docker_repo_key_info.pkg_key }}"
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args:
id: "{{ item }}"
url: "{{ docker_repo_key_info.url }}"
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state: present
register: keyserver_task_result
until: keyserver_task_result is succeeded
retries: 4
delay: "{{ retry_stagger | d(3) }}"
with_items: "{{ docker_repo_key_info.repo_keys }}"
when: not (ansible_os_family in ["CoreOS", "Container Linux by CoreOS", "RedHat", "Suse", "ClearLinux"] or is_atomic)
- name: ensure docker-ce repository is enabled
action: "{{ docker_repo_info.pkg_repo }}"
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args:
repo: "{{ item }}"
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state: present
with_items: "{{ docker_repo_info.repos }}"
when: not (ansible_os_family in ["CoreOS", "Container Linux by CoreOS", "RedHat", "Suse", "ClearLinux"] or is_atomic) and (docker_repo_info.repos|length > 0)
- name: ensure docker-engine repository public key is installed
action: "{{ dockerproject_repo_key_info.pkg_key }}"
args:
id: "{{ item }}"
url: "{{ dockerproject_repo_key_info.url }}"
state: present
register: keyserver_task_result
until: keyserver_task_result is succeeded
retries: 4
delay: "{{ retry_stagger | d(3) }}"
with_items: "{{ dockerproject_repo_key_info.repo_keys }}"
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when:
- not (ansible_os_family in ["CoreOS", "Container Linux by CoreOS", "RedHat", "Suse", "ClearLinux"] or is_atomic)
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- use_docker_engine is defined and use_docker_engine
- name: ensure docker-engine repository is enabled
action: "{{ dockerproject_repo_info.pkg_repo }}"
args:
repo: "{{ item }}"
state: present
with_items: "{{ dockerproject_repo_info.repos }}"
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when:
- use_docker_engine is defined and use_docker_engine
- not (ansible_os_family in ["CoreOS", "Container Linux by CoreOS", "RedHat", "Suse", "ClearLinux"] or is_atomic) and (dockerproject_repo_info.repos|length > 0)
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- name: Configure docker repository on Fedora
template:
src: "fedora_docker.repo.j2"
dest: "{{ yum_repo_dir }}/docker.repo"
when: ansible_distribution == "Fedora" and not is_atomic
- name: Configure docker repository on RedHat/CentOS/Oracle Linux
Backport remove dockerproject (#5682) (#5780) * Remove dockerproject org (#5548) * Change dockerproject.org to download.docker.com dockerproject.org was deprecated in 2017 and has gone down. * Restore yum repo for containerd Change-Id: I883bb512a2164a85865b1bd4fb569af0358c8c2b Co-authored-by: Craig Rodrigues <rodrigc@crodrigues.org> * remove legacy docker repo in kubernetes/preinstall before any packages installed (#5640) * Remove dockerproject_.+_repo_.+ variables (#5662) This 38688a44866d5ee612f80c16ef81e135d1347653 change replaces the value for dockerproject_.+_repo_.+ docker variables but their new value was previously defined in other variables. This change removes the dockerproject_.+_repo_.+ docker variables in favor of the older ones. * Remove stale legacy yum docker repo /etc/yum.repos.d/docker.repo (#5569) * Remove stale legacy yum docker repo /etc/yum.repos.d/docker.repo * move task 'Remove legacy docker repo file' to pre-upgrade.yml * fix upgrade procedure when in playbook (#5695) exists role kubernetes/preinstall and not exists role container-engine error 'yum_repo_dir' is undefined Co-authored-by: Matthew Mosesohn <matthew.mosesohn@gmail.com> Co-authored-by: Craig Rodrigues <rodrigc@crodrigues.org> Co-authored-by: Victor Morales <chipahuac@hotmail.com> Co-authored-by: Kubernetes Prow Robot <k8s-ci-robot@users.noreply.github.com> Co-authored-by: Matthew Mosesohn <matthew.mosesohn@gmail.com> Co-authored-by: Craig Rodrigues <rodrigc@crodrigues.org> Co-authored-by: Victor Morales <chipahuac@hotmail.com>
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yum_repository:
name: docker-ce
baseurl: "{{ docker_rh_repo_base_url }}"
description: "Docker CE Stable - $basearch"
gpgcheck: yes
gpgkey: "{{ docker_rh_repo_gpgkey }}"
keepcache: "{{ docker_rpm_keepcache | default('1') }}"
proxy: " {{ http_proxy | default('_none_') }}"
when: ansible_distribution in ["CentOS","RedHat","OracleLinux"] and not is_atomic
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- name: check if container-selinux is available
yum:
list: "container-selinux"
register: yum_result
when: ansible_distribution in ["CentOS","RedHat"] and not is_atomic
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- name: Configure extras repository on RedHat/CentOS if container-selinux is not available in current repos
yum_repository:
name: extras
description: "CentOS-7 - Extras"
state: present
baseurl: "{{ extras_rh_repo_base_url }}"
file: "extras"
gpgcheck: yes
gpgkey: "{{ extras_rh_repo_gpgkey }}"
keepcache: "{{ docker_rpm_keepcache | default('1') }}"
proxy: " {{ http_proxy | default('_none_') }}"
when:
- ansible_distribution in ["CentOS","RedHat"] and not is_atomic
- yum_result.results | length == 0
- name: Copy yum.conf for editing
copy:
src: "{{ yum_conf }}"
dest: "{{ docker_yum_conf }}"
remote_src: yes
when: ansible_distribution in ["CentOS","RedHat","OracleLinux"] and not is_atomic
- name: Edit copy of yum.conf to set obsoletes=0
lineinfile:
path: "{{ docker_yum_conf }}"
state: present
regexp: '^obsoletes='
line: 'obsoletes=0'
when: ansible_distribution in ["CentOS","RedHat","OracleLinux"] and not is_atomic
- name: ensure docker packages are installed
action: "{{ docker_package_info.pkg_mgr }}"
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args:
pkg: "{{ item.name }}"
force: "{{ item.force|default(omit) }}"
conf_file: "{{ item.yum_conf|default(omit) }}"
state: "{{ item.state | default('present') }}"
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update_cache: "{{ omit if ansible_distribution == 'Fedora' else True }}"
register: docker_task_result
until: docker_task_result is succeeded
retries: 4
delay: "{{ retry_stagger | d(3) }}"
with_items: "{{ docker_package_info.pkgs }}"
notify: restart docker
when: not (ansible_os_family in ["CoreOS", "Container Linux by CoreOS", "ClearLinux"] or is_atomic) and (docker_package_info.pkgs|length > 0)
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ignore_errors: true
- name: Ensure docker packages are installed
action: "{{ docker_package_info.pkg_mgr }}"
args:
name: "{{ item.name }}"
state: "{{ item.state | default('present') }}"
with_items: "{{ docker_package_info.pkgs }}"
register: docker_task_result
until: docker_task_result is succeeded
retries: 4
delay: "{{ retry_stagger | d(3) }}"
notify: restart docker
ignore_errors: true
when: ansible_os_family in ["ClearLinux"]
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- name: get available packages on Ubuntu
command: apt-cache policy docker-ce
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when:
- docker_task_result is failed
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- ansible_distribution == 'Ubuntu'
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register: available_packages
- name: show available packages on ubuntu
fail:
msg: "{{ available_packages }}"
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when:
- docker_task_result is failed
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- ansible_distribution == 'Ubuntu'
# This is required to ensure any apt upgrade will not break kubernetes
- name: Tell Debian hosts not to change the docker version with apt upgrade
dpkg_selections:
name: docker-ce
selection: hold
when: ansible_os_family in ["Debian"]
- name: ensure docker started, remove our config if docker start failed and try again
block:
- name: ensure service is started if docker packages are already present
service:
name: docker
state: started
when: docker_task_result is not changed
rescue:
- debug:
msg: "Docker start failed. Try to remove our config"
- name: remove kubespray generated config
file:
path: "{{ item }}"
state: absent
with_items:
- /etc/systemd/system/docker.service.d/http-proxy.conf
- /etc/systemd/system/docker.service.d/docker-options.conf
- /etc/systemd/system/docker.service.d/docker-dns.conf
- /etc/systemd/system/docker.service.d/docker-orphan-cleanup.conf
notify: restart docker
- name: flush handlers so we can wait for docker to come up
meta: flush_handlers
- name: set fact for docker_version
command: "docker version -f '{{ '{{' }}.Client.Version{{ '}}' }}'"
register: installed_docker_version
changed_when: false
- name: check minimum docker version for docker_dns mode. You need at least docker version >= 1.12 for resolvconf_mode=docker_dns
fail:
msg: "You need at least docker version >= 1.12 for resolvconf_mode=docker_dns"
when: >
dns_mode != 'none' and
resolvconf_mode == 'docker_dns' and
installed_docker_version.stdout is version('1.12', '<')
# Install each plugin using a looped include to make error handling in the included task simpler.
- include_tasks: docker_plugin.yml
loop: "{{ docker_plugins }}"
loop_control:
loop_var: docker_plugin
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- name: Set docker systemd config
import_tasks: systemd.yml
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- name: ensure docker service is started and enabled
service:
name: "{{ item }}"
enabled: yes
state: started
with_items:
- docker