Change-Id: Ib068117237a199db380fcdfb757d5d0e5d34326b

mainly jinja spacing and jinja[invalid] related

Change-Id: I6f52f2b0c1ef76de626657d79486d31e0f47f384

This patch adds loadbalancer-config role
which is "wrapper" around haproxy-config
and proxysql-config role which will be added
in follow-up patches.

Change-Id: I64d41507317081e1860a94b9481a85c8d400797d

Depends-On: https://review.opendev.org/c/openstack/kolla/+/769385
Depends-On: https://review.opendev.org/c/openstack/kolla/+/765781

Change-Id: I3c4182a6556dafd2c936eaab109a068674058fca

ansible-lint introduced var-spacing - let's fix our code.

Change-Id: I0d8aaf3c522a5a6a5495032f6dbed8a2be0251f0

Render {{ openstack_service_workers }} for workers
of each openstack service is not enough. There are
several services which has to have more workers because
there are more requests sent to them.

This patch is just adding default value for workers for
each service and sets {{ openstack_service_workers }} as
default, so value can be overrided in hostvars per server.
Nothing changed for normal user.

Change-Id: Ifa5863f8ec865bbf8e39c9b2add42c92abe40616

Fixes an issue where access rules failed to validate:

    Cannot validate request with restricted access rules. Set
    service_type in [keystone_authtoken] to allow access rule validation

I've used the values from the endpoint. This was mostly a straight
forward copy and paste, except:

- versioned endpoints e.g cinderv3 where I stripped the version
- monasca has multiple endpoints associated with a single service. For
  this, I concatenated logging and monitoring to be logging-monitoring.

Closes-Bug: #1965111
Change-Id: Ic4b3ab60abad8c3dd96cd4923a67f2a8f9d195d7

This patch is removing nova configuration
options, this was probably caused by migration
from nova-placement to placement.

Change-Id: Ib54b26428b79d5c4f554928b8634a0bb4e884a90

This patch is removing api related configuration
from service's config files as we are using
apache mod_wsgi and this configuration is not
used.

Change-Id: I69a1542a6f24214fbf6e703782aefb566de4fb26

Following up on [1].
The 3 variables are only introducing noise after we removed
the reliance on Keystone's admin port.

[1] I5099b08953789b280c915a6b7a22bdd4e3404076

Change-Id: I3f9dab93042799eda9174257e604fd1844684c1c

Change-Id: Ib4b15ed4feac82d8492b1c0f0238a752eac668e6

We have only one value for install_type now and it gets removed from
image names.

Change-Id: I8bf95fd7aa9dd26b80d618ca0fcb097003b4cb0a

As we have only source image type then we do not need to handle other
option.

Change-Id: I753aa0182cfc975bb8b5cd1476ab2c336a7691fa

Designate sink is an optional service that consumes notifications,
users should have an option to disable it when they don't use them.

Change-Id: I1d5465d9845aea94cff39ff5158cd8b1dccc4834

Role vars have a higher precedence than role defaults. This allows to
import default vars from another role via vars_files without overriding
project_name (see related bug for details).

Change-Id: I3d919736e53d6f3e1a70d1267cf42c8d2c0ad221
Related-Bug: #1951785

The admin interface for endpoints never had any real use, the
functionality was the same as for the public or internal endpoints,
except for Keystone. Even for Keystone with API v3 it would no longer
really be needed, but it is still being required by some libraries that
cannot be changed in order to stay backwards compatible.

Signed-off-by: Dr. Jens Harbott <harbott@osism.tech>
Change-Id: Icf3bf08deab2c445361f0a0124d87ad8b0e4e9d9

Correct typo in role's playbook in order to be able to deploy
the service with customized policy file.

Change-Id: I252ffaf73dd2a649387ddacc73286b49f36dfdf2
Closes-Bug: #1948835

We get a nice optimisation by using a filtered loop instead
of task skipping per service with 'when'.

Partially-Implements: blueprint performance-improvements
Change-Id: I8f68100870ab90cb2d6b68a66a4c97df9ea4ff52

By default, Ansible injects a variable for every fact, prefixed with
ansible_. This can result in a large number of variables for each host,
which at scale can incur a performance penalty. Ansible provides a
configuration option [0] that can be set to False to prevent this
injection of facts. In this case, facts should be referenced via
ansible_facts.<fact>.

This change updates all references to Ansible facts within Kolla Ansible
from using individual fact variables to using the items in the
ansible_facts dictionary. This allows users to disable fact variable
injection in their Ansible configuration, which may provide some
performance improvement.

This change disables fact variable injection in the ansible
configuration used in CI, to catch any attempts to use the injected
variables.

[0] https://docs.ansible.com/ansible/latest/reference_appendices/config.html#inject-facts-as-vars

Change-Id: I7e9d5c9b8b9164d4aee3abb4e37c8f28d98ff5d1
Partially-Implements: blueprint performance-improvements

Closes-Bug: #1933025

Change-Id: Ib67d715ddfa986a5b70a55fdda39e6d0e3333162

In services which use the Apache HTTP server to service HTTP requests,
there exists a TimeOut directive [1] which defaults to 60 seconds. APIs
which come under heavy load, such as Cinder, can sometimes exceed this
which results in a HTTP 504 Gateway timeout, or similar. However, the
request can still be serviced without error. For example, if Nova calls
the Cinder API to detach a volume, and this operation takes longer
than the shortest of the two timeouts, Nova will emit a stack trace
with a 504 Gateway timeout. At some time later, the request to detach
the volume will succeed. The Nova and Cinder DBs then become
out-of-sync with each other, and frequently DB surgery is required.

Although strictly this category of bugs should be fixed in OpenStack
services, it is not realistic to expect this to happen in the short
term. Therefore, this change makes it easier to set the Apache HTTP
timeout via a new variable.

An example of a related bug is here:

https://bugs.launchpad.net/nova/+bug/1888665

Whilst this timeout can currently be set by overriding the WSGI
config for individual services, this change makes it much easier.

Change-Id: Ie452516655cbd40d63bdad3635fd66693e40ce34
Closes-Bug: #1917648

Searchlight project is retiring in Wallaby cycle[1].
This commit removes the ansible roles of Searchlight project
before its code is removed.

Needed-By: https://review.opendev.org/c/openstack/searchlight/+/764526

[1] http://lists.openstack.org/pipermail/openstack-discuss/2020-November/018637.html

Change-Id: I85aab66376ea4f1376c2705066ba3c7e5645644f

This reverts commit 9cae59be.

Reason for revert: This patch was found to introduce issues with fluentd customisation. The underlying issue is not currently fully understood, but could be a sign of other obscure issues.

Change-Id: Ia4859c23d85699621a3b734d6cedb70225576dfc
Closes-Bug: #1906288

Makes 'import_tasks' not change behaviour compared to
'include_tasks'.

Change-Id: I600be7c3bd763b3b924bd4a45b4e7b4dca7a33e3

Main plays are action-redirect-stubs, ideal for import_tasks.

This avoids 'include' penalty and makes logs/ara look nicer.

Fixes haproxy and rabbitmq not to check the host group as well.

Change-Id: I46136fc40b815e341befff80b54a91ef431eabc0
Partially-Implements: blueprint performance-improvements

Change-Id: I52cee3679e4a733daa165062d64884577e9acc1a
Closes-Bug: #1900082

Config plays do not need to check containers. This avoids skipping
tasks during the genconfig action.

Ironic and Glance rolling upgrades are handled specially.

Swift and Bifrost do not use the handlers at all.

Partially-Implements: blueprint performance-improvements
Change-Id: I140bf71d62e8f0932c96270d1f08940a5ba4542a

Use with_first_found on placement-api-wsgi to allow
overwrite from users and keep consistency with other
roles.

Change-Id: I11c84db6df1bb5be61db5b6b0adf8c160a2bd931
Closes-Bug: #1898766

This change enables the use of Docker healthchecks for core OpenStack
services.
Also check-failures.sh has been updated to treat containers with
unhealthy status as failed.

Implements: blueprint container-health-check
Change-Id: I79c6b11511ce8af70f77e2f6a490b59b477fefbb

When the internal VIP is moved in the event of a failure of the active
controller, OpenStack services can become unresponsive as they try to
talk with MariaDB using connections from the SQLAlchemy pool.

It has been argued that OpenStack doesn't really need to use connection
pooling with MariaDB [1]. This commit reduces the use of connection
pooling via two configuration options:

- max_pool_size is set to 1 to allow only a single connection in the
  pool (it is not possible to disable connection pooling entirely via
  oslo.db, and max_pool_size = 0 means unlimited pool size)
- lower connection_recycle_time from the default of one hour to 10
  seconds, which means the single connection in the pool will be
  recreated regularly

These settings have shown better reactivity of the system in the event
of a failover.

[1] http://lists.openstack.org/pipermail/openstack-dev/2015-April/061808.html

Change-Id: Ib6a62d4428db9b95569314084090472870417f3d
Closes-Bug: #1896635

Including tasks has a performance penalty when compared with importing
tasks. If the include has a condition associated with it, then the
overhead of the include may be lower than the overhead of skipping all
imported tasks. In the case of the register.yml and bootstrap.yml
includes, all of the tasks in the included file use run_once: True.
The run_once flag improves performance at scale drastically, so
importing these tasks unconditionally will have a lower overhead than a
conditional include task.  It therefore makes sense to switch to use
import_tasks there.

See [1] for benchmarks of run_once.

[1] https://github.com/stackhpc/ansible-scaling/blob/master/doc/run-once.md

Change-Id: Ic67631ca3ea3fb2081a6f8978e85b1522522d40d
Partially-Implements: blueprint performance-improvements

Including tasks has a performance penalty when compared with importing
tasks. If the include has a condition associated with it, then the
overhead of the include may be lower than the overhead of skipping all
imported tasks. For unconditionally included tasks, switching to
import_tasks provides a clear benefit.

Benchmarking of include vs. import is available at [1].

This change switches from include_tasks to import_tasks where there is
no condition applied to the include.

[1] https://github.com/stackhpc/ansible-scaling/blob/master/doc/include-and-import.md#task-include-and-import

Partially-Implements: blueprint performance-improvements

Change-Id: Ia45af4a198e422773d9f009c7f7b2e32ce9e3b97

It was found to be useless in [1].

It is one of distro_python_version usages.

Note Freezer and Horizon still use python_path (and hence
distro_python_version) for different purposes.

[1] https://review.opendev.org/675822

Change-Id: I6d6d9fdf4c28cb2b686d548955108c994b685bb1
Partially-Implements: blueprint drop-distro-python-version

This patch introduces a global keep alive timeout value for services
that leverage httpd + wsgi to handle http/https requests. The default
value is one minute.

Change-Id: Icf7cb0baf86b428a60a7e9bbed642999711865cd
Partially-Implements: blueprint add-ssl-internal-network

Previously we mounted /etc/timezone if the kolla_base_distro is debian
or ubuntu. This would fail prechecks if debian or ubuntu images were
deployed on CentOS. While this is not a supported combination, for
correctness we should fix the condition to reference the host OS rather
than the container OS, since that is where the /etc/timezone file is
located.

Change-Id: Ifc252ae793e6974356fcdca810b373f362d24ba5
Closes-Bug: #1882553

Including tasks has a performance penalty when compared with importing
tasks. If the include has a condition associated with it, then the
overhead of the include may be lower than the overhead of skipping all
imported tasks. In the case of the check-containers.yml include, the
included file only has a single task, so the overhead of skipping this
task will not be greater than the overhead of the task import. It
therefore makes sense to switch to use import_tasks there.

Partially-Implements: blueprint performance-improvements

Change-Id: I65d911670649960708b9f6a4c110d1a7df1ad8f7

The common role was previously added as a dependency to all other roles.
It would set a fact after running on a host to avoid running twice. This
had the nice effect that deploying any service would automatically pull
in the common services for that host. When using tags, any services with
matching tags would also run the common role. This could be both
surprising and sometimes useful.

When using Ansible at large scale, there is a penalty associated with
executing a task against a large number of hosts, even if it is skipped.
The common role introduces some overhead, just in determining that it
has already run.

This change extracts the common role into a separate play, and removes
the dependency on it from all other roles. New groups have been added
for cron, fluentd, and kolla-toolbox, similar to other services. This
changes the behaviour in the following ways:

* The common role is now run for all hosts at the beginning, rather than
  prior to their first enabled service
* Hosts must be in the necessary group for each of the common services
  in order to have that service deployed. This is mostly to avoid
  deploying on localhost or the deployment host
* If tags are specified for another service e.g. nova, the common role
  will *not* automatically run for matching hosts. The common tag must
  be specified explicitly

The last of these is probably the largest behaviour change. While it
would be possible to determine which hosts should automatically run the
common role, it would be quite complex, and would introduce some
overhead that would probably negate the benefit of splitting out the
common role.

Partially-Implements: blueprint performance-improvements

Change-Id: I6a4676bf6efeebc61383ec7a406db07c7a868b2a

non-root user has no permission to create directory under /opt
directory. use "become: true" to resolve it.

Change-Id: I155efc4b1e0691da0aaf6ef19ca709e9dc2d9168

This patch introduces an optional backend encryption for Horizon and
Placement services. When used in conjunction with enabling TLS for
service API endpoints, network communcation will be encrypted end to
end, from client through HAProxy to the Horizon and Placement services.

Change-Id: I9cb274141c95aea20e733baa623da071b30acf2d
Partially-Implements: blueprint add-ssl-internal-network

Refactor service configuration to use the copy certificates task. This
reduces code duplication and simplifies implementing encrypting backend
HAProxy traffic for individual services.

Change-Id: I0474324b60a5f792ef5210ab336639edf7a8cd9e