A combination of durable queues and classic queue mirroring can be used
to provide high availability of RabbitMQ. However, these options should
only be used together, otherwise the system will become unstable. Using
the flag ``om_enable_rabbitmq_high_availability`` will either enable
both options at once, or neither of them.
There are some queues that should not be mirrored:
* ``reply`` queues (these have a single consumer and TTL policy)
* ``fanout`` queues (these have a TTL policy)
* ``amq`` queues (these are auto-delete queues, with a single consumer)
An exclusionary pattern is used in the classic mirroring policy. This
pattern is ``^(?!(amq\\.)|(.*_fanout_)|(reply_)).*``
Change-Id: I51c8023b260eb40b2eaa91bd276b46890c215c25
When running in check mode, some prechecks previously failed because
they use the command module which is silently not run in check mode.
Other prechecks were not running correctly in check mode due to e.g.
looking for a string in empty command output or not querying which
containers are running.
This change fixes these issues.
Closes-Bug: #2002657
Change-Id: I5219cb42c48d5444943a2d48106dc338aa08fa7c
The ``[oslo_messaging_rabbit] heartbeat_in_pthread`` config option
is set to ``true`` for wsgi applications to allow the RabbitMQ
heartbeats to function. For non-wsgi applications it is set to ``false``
as it may otherwise break the service [1].
[1] https://docs.openstack.org/releasenotes/oslo.messaging/zed.html#upgrade-notes
Change-Id: Id89bd6158aff42d59040674308a8672c358ccb3c
Regularly, we experience issues in Kolla Ansible deployments because we
use wrong options in OpenStack configuration files. This is because
OpenStack services ignore unknown options. We also need to keep on top
of deprecated options that may be removed in the future. Integrating
oslo-config-validator into Kolla Ansible will greatly help.
Adds a shared role to run oslo-config-validator on each service. Takes
into account that services have multiple containers, and these may also
use multiple config files. Service roles are extended to use this shared
role. Executed with the new command ``kolla-ansible validate-config``.
Change-Id: Ic10b410fc115646d96d2ce39d9618e7c46cb3fbc
Without this setting, the keystone fetcher fails to authenticate when
using internal TLS with a local CA.
Closes-Bug: #2000097
Change-Id: Ia709f450c3e5b73e145e89a305cd038c05507dc6
This change replaces ElasticSearch with OpenSearch, and Kibana
with OpenSearch Dashboards. It migrates the data from ElasticSearch
to OpenSearch upon upgrade.
No TLS support is in this patch (will be a followup).
A replacement for ElasticSearch Curator will be added as a followup.
Depends-On: https://review.opendev.org/c/openstack/kolla/+/830373
Co-authored-by: Doug Szumski <doug@stackhpc.com>
Co-authored-by: Kyle Dean <kyle@stackhpc.com>
Change-Id: Iab10ce7ea5d5f21a40b1f99b28e3290b7e9ce895
Kolla Ansible is switching to OpenSearch and is dropping support for
deploying ElasticSearch. This is because the final OSS release of
ElasticSearch has exceeded its end of life.
Monasca is affected because it uses both Logstash and ElasticSearch.
Whilst it may continue to work with OpenSearch, Logstash remains an
issue.
In the absence of any renewed interest in the project, we remove
support for deploying it. This helps to reduce the complexity
of log processing configuration in Kolla Ansible, freeing up
development time.
Change-Id: I6fc7842bcda18e417a3fd21c11e28979a470f1cf
Second part of patchset:
https://review.opendev.org/c/openstack/kolla-ansible/+/799229/
in which was suggested to split patch into smaller ones.
THis change adds container_engine to module parameters
so when we introduce podman, kolla_toolbox can be used
for both engines.
Signed-off-by: Ivan Halomi <i.halomi@partner.samsung.com>
Co-authored-by: Martin Hiner <m.hiner@partner.samsung.com>
Change-Id: Ic2093aa9341a0cb36df8f340cf290d62437504ad
Second part of patchset:
https://review.opendev.org/c/openstack/kolla-ansible/+/799229/
in which was suggested to split patch into smaller ones.
This change adds container_engine variable to kolla_container_facts
module, this prepares module to be used with docker and podman as well
without further changes in roles.
Signed-off-by: Ivan Halomi <i.halomi@partner.samsung.com>
Co-authored-by: Martin Hiner <m.hiner@partner.samsung.com>
Change-Id: I9e8fa30646844ab4a288555f3aafdda345b3a118
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
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
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
The Prometheus HTTP API is reachable under /api/v1. Without this fix,
CloudKitty receives 404 errors from Prometheus.
Change-Id: Ie872da5ccddbcb8028b8b57022e2427372ed474e
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
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
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
and prometheus collector backend support.
* Fix various remaining typos.
* Fix trailing character on reno.
* Enable Elasticsearch when selected as cloudkitty backend.
* Add a check for ES index creation when ES required.
* Add a release note
* Fix release note line length issue.
Change-Id: I18f3d8f2e10a2996b2ebf92733a1770bef548bda
Closes-bug: #1895945
This change enables the use of Docker healthchecks for cloudkitty
services.
Implements: blueprint container-health-check
Change-Id: I19892035382ffff5200e88da53408a19e72c9d68
This reverts commit 9cae59be51e8d2d798830042a5fd448a4aa5e7dc.
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
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
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
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
This change adds support for encryption of communication between
OpenStack services and RabbitMQ. Server certificates are supported, but
currently client certificates are not.
The kolla-ansible certificates command has been updated to support
generating certificates for RabbitMQ for development and testing.
RabbitMQ TLS is enabled in the all-in-one source CI jobs, or when
The Zuul 'tls_enabled' variable is true.
Change-Id: I4f1d04150fb2b5af085b762890092f87ae6076b5
Implements: blueprint message-queue-ssl-support
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
