openstack-ansible/playbooks/common-tasks/os-lxc-container-setup.yml

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---
# Copyright 2016, Rackspace US, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
# Usage:
# This common task will update lxc containers to use the lxc-openstack
# app-armor profile by default however this profile can be changed as needed.
# This will also load in a list of bind mounts for a given container. To load
# in a list of bind mounts the variable, "list_of_bind_mounts" must be used
# containing at least one dictionary with the keys "bind_dir_path",
# "relative_bind_dir_path", and "mount_path".
# * bind_dir_path = Container path used in a bind mount
# * mount_path = Local path on the physical host used for a bind mount
# If extra container configurations are desirable set the
# "extra_container_config" list to strings containing the options needed.
- name: Set default bind mounts
set_fact:
lxc_default_bind_mounts:
- bind_dir_path: "/var/log"
mount_path: "/openstack/log/{{ inventory_hostname }}"
when: lxc_default_bind_mounts is undefined
- name: Ensure mount directories exists
file:
path: "{{ item['mount_path'] }}"
state: "directory"
with_items:
- "{{ list_of_bind_mounts | default([]) }}"
- "{{ lxc_default_bind_mounts }}"
delegate_to: "{{ physical_host }}"
when:
- list_of_bind_mounts is defined
- not is_metal | bool
- name: LXC bind mount directories
lxc_container:
name: "{{ inventory_hostname }}"
container_command: |
[[ ! -d "{{ item['bind_dir_path'] }}" ]] && mkdir -p "{{ item['bind_dir_path'] }}"
with_items:
- "{{ list_of_bind_mounts | default([]) }}"
- "{{ lxc_default_bind_mounts }}"
delegate_to: "{{ physical_host }}"
register: _bm
when:
- list_of_bind_mounts is defined
- not is_metal | bool
- name: Add bind mount configuration to container
lineinfile:
dest: "/var/lib/lxc/{{ inventory_hostname }}/config"
line: "lxc.mount.entry = {{ item['mount_path'] }} {{ item['bind_dir_path'].lstrip('/') }} none bind 0 0"
backup: "true"
with_items:
- "{{ list_of_bind_mounts | default([]) }}"
- "{{ lxc_default_bind_mounts }}"
delegate_to: "{{ physical_host }}"
when:
- list_of_bind_mounts is defined
- not is_metal | bool
register: _mc
- name: Extra lxc config
lineinfile:
dest: "/var/lib/lxc/{{ inventory_hostname }}/config"
line: "{{ item.split('=')[0] }} = {{ item.split('=', 1)[1] }}"
insertafter: "^{{ item.split('=')[0] }}"
backup: "true"
with_items: "{{ extra_container_config | default([]) }}"
delegate_to: "{{ physical_host }}"
register: _ec
when: not is_metal | bool
# Due to https://github.com/ansible/ansible-modules-extras/issues/2691
# this uses the LXC CLI tools to ensure that we get logging.
# TODO(odyssey4me): revisit this once the bug is fixed and released
- name: Lxc container restart
command: >
lxc-stop --name {{ inventory_hostname }}
--logfile {{ lxc_container_log_path }}/lxc-{{ inventory_hostname }}.log
--logpriority {{ (debug | bool) | ternary('DEBUG', 'INFO') }}
delegate_to: "{{ physical_host }}"
register: container_stop
until: container_stop | success
retries: 3
when:
- not is_metal | bool
- (_mc is defined and _mc | changed) or (_ec is defined and _ec | changed)
# Due to https://github.com/ansible/ansible-modules-extras/issues/2691
# this uses the LXC CLI tools to ensure that we get logging.
# TODO(odyssey4me): revisit this once the bug is fixed and released
- name: Start Container
command: >
lxc-start --daemon --name {{ inventory_hostname }}
--logfile {{ lxc_container_log_path }}/lxc-{{ inventory_hostname }}.log
--logpriority {{ (debug | bool) | ternary('DEBUG', 'INFO') }}
delegate_to: "{{ physical_host }}"
register: container_start
until: container_start | success
retries: 3
when:
- not is_metal | bool
- (_mc is defined and _mc | changed) or (_ec is defined and _ec | changed)
- name: Wait for container ssh
wait_for:
port: "22"
delay: "{{ ssh_delay }}"
search_regex: "OpenSSH"
host: "{{ ansible_ssh_host }}"
delegate_to: "{{ physical_host }}"
register: ssh_wait_check
until: ssh_wait_check | success
retries: 3
when:
- (_bm is defined and _bm | changed) or (_ec is defined and _ec | changed)
- not is_metal | bool