add cloud-init workaround

The version of cloud-init included with CentOS7.5 (0.7.9-24)
fails to assign an IP address on VLAN subinterfaces. This
workaround upgrades cloud-init to 18.2 using a private
repository.

Story: 2002610
Task: 22229
Change-Id: Idc570b9ca7558dfd42246c74b1ec0331011d692f
This commit is contained in:
Will Szumski 2018-06-18 11:34:17 +01:00
parent e7148bc61a
commit d1ba6d5027
7 changed files with 126 additions and 0 deletions

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@ -30,3 +30,11 @@ disable_cloud_init: False
# from the image using virt-customize, if it exists. See
# https://bugs.centos.org/view.php?id=14369.
overcloud_host_image_workaround_resolv_enabled: True
# Workaround a CentOS 7.5 bug: cloud-init 0.7.9-24 does not correctly set
# an IP address for VLAN subinterfaces configured with the Openstack metadata
# format/Config drive. # See, https://bugs.centos.org/view.php?id=14964.
overcloud_host_image_workaround_cloud_init_enabled: False
# cloud-init repository for overcloud_host_image_workaround_cloud_init_enabled
overcloud_host_image_workaround_cloud_init_repo: https://stackhpc.github.io/cloud-init-repo/

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@ -0,0 +1,66 @@
---
# Workaround a CentOS 7.5 bug: cloud-init 0.7.9-24 does not correctly set
# an IP address for VLAN subinterfaces configured with the Openstack metadata
# format/Config drive. # See, https://bugs.centos.org/view.php?id=14964.
- name: Ensure the overcloud host image uses an updated version of cloud-init
hosts: seed
tags:
- overcloud-host-image-workaround
vars:
custom_repo_tmp_path: /tmp/cloud-init-upstream.repo
tasks:
- block:
- name: Ensure libguestfs-tools is installed
command: >
docker exec bifrost_deploy
bash -c '
ansible localhost
--connection local
--become
-m yum
-a "name=libguestfs-tools state=installed"'
- name: Template cloud-init-repo
copy:
content: |
[cloudinit]
name=StackHPC cloud-init
baseurl={{ overcloud_host_image_workaround_cloud_init_repo }}
gpgcheck=0
enabled=1
dest: "{{ custom_repo_tmp_path }}"
- name: Copy cloud init repo into docker container
command: docker cp {{ custom_repo_tmp_path }} bifrost_deploy:{{ custom_repo_tmp_path }}
- name: Clean up template on seed
file:
path: "{{ custom_repo_tmp_path }}"
state: absent
- name: Install custom repo
command: >
docker exec bifrost_deploy
bash -c '
export LIBGUESTFS_BACKEND=direct &&
ansible localhost
--connection local
--become
-m command
-a "virt-customize -a /httpboot/deployment_image.qcow2 --upload {{ custom_repo_tmp_path }}:/etc/yum.repos.d/"'
- name: Clean up tmp file in docker container
command: >
docker exec bifrost_deploy
bash -c '
ansible localhost
--connection local
--become
-m file
-a "path=\"{{ custom_repo_tmp_path }}\" state=absent"'
- name: upgrade cloud init
command: >
docker exec bifrost_deploy
bash -c '
export LIBGUESTFS_BACKEND=direct &&
ansible localhost
--connection local
--become
-m command
-a "virt-customize -a /httpboot/deployment_image.qcow2 --install cloud-init"'
when: overcloud_host_image_workaround_cloud_init_enabled | bool

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@ -133,6 +133,40 @@ image name regular expressions::
In order to push images to a registry after they are built, add the ``--push``
argument.
Workaround VLAN cloud-init issue
--------------------------------
If you wish to configure the overcloud hosts to use a tagged VLAN for the admin
network interface, you must set
``overcloud_host_image_workaround_cloud_init_enabled``
to True in ``${KAYOBE_CONFIG_PATH}/etc/kayobe/overcloud.yml``::
overcloud_host_image_workaround_cloud_init_enabled: True
prior to deploying the containerised services with::
(kayobe) $ kayobe seed service deploy
Kayobe will then patch the overcloud host image to include a more recent
version of cloud-init. This is to workaround a bug in the version of
cloud-init currently shipped with CentOS 7.5 (0.7.9-24 at the time of writing),
which doesn't set the IP address of VLAN subinterfaces. See:
https://bugs.centos.org/view.php?id=14964.
The default repository used to obtain the package is currently hosted on github
in the `cloud-init-repo <https://github.com/stackhpc/cloud-init-repo>`_
repository. You can override this by setting ``overcloud_host_image_workaround_cloud_init_repo``
in ``${KAYOBE_CONFIG_PATH}/etc/kayobe/overcloud.yml``::
overcloud_host_image_workaround_cloud_init_repo: https://stackhpc.github.io/cloud-init-repo/
The source code used to build the updated package can be obtained from
the `cloud-init-repo-source <https://github.com/stackhpc/cloud-init-repo-source>`_
repository.
As this is not an offical package, there may be latent bugs when using
functionality the kayobe developers have not used themselves.
Deploying Containerised Services
--------------------------------

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@ -28,6 +28,14 @@
# https://bugs.centos.org/view.php?id=14369.
#overcloud_host_image_workaround_resolv_enabled:
# Workaround a CentOS 7.5 bug: cloud-init 0.7.9-24 does not correctly set
# an IP address for VLAN subinterfaces configured with the Openstack metadata
# format/Config drive. # See, https://bugs.centos.org/view.php?id=14964.
#overcloud_host_image_workaround_cloud_init_enabled:
# cloud-init repository for overcloud_host_image_workaround_cloud_init_enabled
#overcloud_host_image_workaround_cloud_init_repo: https://stackhpc.github.io/cloud-init-repo/
###############################################################################
# Dummy variable to allow Ansible to accept this file.
workaround_ansible_issue_8743: yes

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@ -449,6 +449,7 @@ class SeedServiceDeploy(KollaAnsibleMixin, KayobeAnsibleMixin, VaultMixin,
* Deploys the bifrost container using kolla-ansible.
* Builds disk images for the overcloud hosts using Diskimage Builder (DIB).
* Performs a workaround in the overcloud host image to fix resolv.conf.
* Performs a workaround in the overcloud host image to update cloud-init
* Configures ironic inspector introspection rules in the bifrost inspector
service.
* When enabled, configures a Bare Metal Provisioning (BMP) environment for
@ -465,6 +466,7 @@ class SeedServiceDeploy(KollaAnsibleMixin, KayobeAnsibleMixin, VaultMixin,
self.run_kolla_ansible_seed(parsed_args, "deploy-bifrost")
playbooks = _build_playbook_list(
"overcloud-host-image-workaround-resolv",
"overcloud-host-image-workaround-cloud-init",
"seed-introspection-rules",
"dell-switch-bmp")
self.run_kayobe_playbooks(parsed_args, playbooks)

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@ -411,6 +411,7 @@ class TestCase(unittest.TestCase):
mock.ANY,
[
"ansible/overcloud-host-image-workaround-resolv.yml",
"ansible/overcloud-host-image-workaround-cloud-init.yml",
"ansible/seed-introspection-rules.yml",
"ansible/dell-switch-bmp.yml",
],

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@ -0,0 +1,7 @@
---
features:
- |
Adds an option to upgrade cloud-init in the overcloud host images,
``overcloud_host_image_workaround_cloud_init_enabled``. Please see:
`Story 2002610 <https://storyboard.openstack.org/#!/story/2002610>`_
for full details.