openstack-ansible-lxc_hosts/tasks/lxc_cache_preparation_syste...

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YAML

---
# Copyright 2015, 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.
# NOTE(cloudnull): This is only used when running SystemD <= 219
# ==============================================================
# In later versions of SystemD this is automatically done for us
# by the machinectl cli on first run. To ensure we're handling the
# case of a mount point being just offline, we first try and start
# the systemd mount unit and then check for the mount points existance.
- name: Check machinectl mount point
shell: |
mount -a || true
systemctl start var-lib-machines.mount || true
sleep 1
grep -w '/var/lib/machines' /proc/mounts
failed_when: false
changed_when: false
register: machinectl_mount
tags:
- skip_ansible_lint
- name: Create systemd sparse file
shell: "truncate -s '>{{ lxc_host_machine_volume_size }}' /var/lib/machines.raw"
- name: Old systemd machinectl mount
block:
# In later versions of SystemD this is automatically done for us
# by the machinectl cli on first run.
- name: Format the machines sparse file
filesystem:
fstype: btrfs
dev: /var/lib/machines.raw
# In later versions of SystemD this is automatically done for us
# by the machinectl cli on first run.
- name: Create machines mount point
file:
path: "/var/lib/machines"
state: "directory"
# In later versions of SystemD this unit file has been corrected
# and is packaged with systemd proper.
- name: Move machines mount into place
copy:
src: var-lib-machines.mount
dest: /etc/systemd/system/var-lib-machines.mount
register: mount_unit
notify:
- Start machines mount
# In later versions of SystemD this is not needed. Referenced in
# the following ML post resolves the bug.
# * https://lists.freedesktop.org/archives/systemd-devel/2015-March/029151.html
- name: Move machined service into place
template:
src: systemd-machined.service.j2
dest: /etc/systemd/system/systemd-machined.service
register: machined_unit
notify:
- Reload systemd units
- Restart machined
# In later versions of SystemD this is not needed. Referenced in
# the following commit resolves the bug.
# * https://cgit.freedesktop.org/systemd/systemd/commit/src/machine/org.freedesktop.machine1.conf?id=72c3897f77a7352618ea76b880a6764f52d6327b
- name: Move machine1 dbus config into place
copy:
src: org.freedesktop.machine1.conf
dest: /etc/dbus-1/system.d/org.freedesktop.machine1.conf
register: machine1_conf
notify:
- Reload systemd units
- Restart dbus
when:
- machinectl_mount.rc != 0
# Ensure lxc networks are running as they're supposed to
- meta: flush_handlers
# NOTE(cloudnull): Because the machines mount may be a manually created sparse
# file we run an online resize to ensure the machines mount is
# the size we expect.
- name: Ensure the machines fs is sized correctly
command: "btrfs filesystem resize max /var/lib/machines"
changed_when: false
- name: Disable the machinectl quota system
command: "btrfs quota {{ lxc_host_machine_quota_disabled | bool | ternary('disable', 'enable') }} /var/lib/machines"
changed_when: false
# Because of this post and it's related bug(s) this is adding the container
# volumes the old way. The new way would simply be calling `machinectl`.
# * https://www.mail-archive.com/systemd-devel@lists.freedesktop.org/msg28255.html
- name: Remove old image cache
command: "btrfs subvolume delete /var/lib/machines/{{ lxc_container_base_name }}"
register: cache_refresh_del
changed_when: cache_refresh_del.rc == 0
failed_when: cache_refresh_del.rc not in [0, 1]
when:
- lxc_image_cache_refresh | bool
- name: Add image cache
command: "btrfs subvolume create /var/lib/machines/{{ lxc_container_base_name }}"
register: cache_refresh_add
changed_when: cache_refresh_add.rc == 0
failed_when: cache_refresh_add.rc not in [0, 1]
when:
- lxc_image_cache_refresh | bool
- name: Ensure image has been pre-staged
async_status:
jid: "{{ prestage_image.ansible_job_id }}"
register: job_result
until: job_result.finished
retries: 60
- name: Place container rootfs
unarchive:
src: "/tmp/rootfs.tar.xz"
dest: "/var/lib/machines/{{ lxc_container_base_name }}"
remote_src: True
notify:
- Remove rootfs archive