During a rolling update, OSDs are restarted twice currently. Once, by the
handler in roles/ceph-defaults/handlers/main.yml and a second time by tasks
in the rolling_update playbook. This change turns off restarts by the handler.
Further, the restart initiated by the rolling_update playbook is more
efficient as it restarts all the OSDs on a host as one operation and waits
for them to rejoin the cluster. The restart task in the handler restarts one
OSD at a time and waits for it to join the cluster.
This was causing a lot of pain with the handlers. Also the
implementation was not ideal since we were assembling files. Everything
can now be done with the ceph_crush module so let's remove that.
Signed-off-by: Sébastien Han <seb@redhat.com>
This patch fixes an issue where if hosts have different service lists,
it will prevent restarting changes on services that run later on.
For example, hostA in the mons and rgws group would initiate a config
change and restart of services on all mons and rgws hosts, even though
a separate hostB (which is only in the rgws group) has not had its
configuration changed yet. Additionally, when the second host has its
coniguration changed as part of the ceph-rgw role, it will not initiate
a restart since its inventory name != the first hosts.
To fix this we should run the restart once (using run_once: True)
as long as the host has called the handler. This will ensure that even
if only 1 host has called the handler it will initiate a restart on all
hosts that have called the handler.
Additionally, we add a var that is set when the handler runs, this will
ensure that only hosts that have called the handler get restarted.
Includes minor fix to remove unrequired "inventory_hostname in
play_hosts" when: clause. This is no longer required since the handlers
were changed. The host calling the handler will be in play_hosts
already.
When used along with delegate, run_once does not belong well. Thus,
using | last always brings the desired result.
Signed-off-by: Sébastien Han <seb@redhat.com>
In case where docker CLI is available but docker is not running, we
don't want to trigger the restart of the daemons.
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1510555
Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
- One can not run scripts directly in place, that mounted with `noexec`
option. But one can run scripts as arguments for `bash/sh`.
Signed-off-by: Arano-kai <captcha.is.evil@gmail.com>
When doing collocation the condition "inventory_hostname in play_hosts"
is breaking the restart workflow.
Signed-off-by: Sébastien Han <seb@redhat.com>
During the initial play, the docker command doesn't not exist and then
there is no stdout_lines to the command. So get allows us to fix this by
declaring an array if the command fails.
Signed-off-by: Sébastien Han <seb@redhat.com>
Running the socket check on all the hosts will override the default
value of docker_exec_cmd, leaving it with the last value (currently
rbd-mirror), as a result the subsequent docker_exec_cmd usage for the
:x
Signed-off-by: Sébastien Han <seb@redhat.com>
We have seen issues with leftover socker. So now, if a socket is found
we also check if it's accessed by a process. If so, we can run the
handler, if not we remove it and continue the playbook.
Signed-off-by: Sébastien Han <seb@redhat.com>
Co-Authored-by: Guillaume Abrioux <gabrioux@redhat.com>
When Ansible is not run with verbose options it's difficult to see which
include and/or set_fact does what. So adding a name for each clarifies.
Signed-off-by: Sébastien Han <seb@redhat.com>
In a collocated scenario, where you might put a rgw, a mds and a mon on
the same node you don't want the handler blindly restart all the daemons
on the node. Indeed some of them might not be configured yet.
Implementing a more precise socket detection, for each daemon type.
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1488813
Signed-off-by: Sébastien Han <seb@redhat.com>
The way we handle the restart for both mds and rgw is not ideal, it will
try to restart the daemon on the host that don't run the daemon,
resulting in a service file being created (see bug description).
Now we restart each daemon precisely and in a serialized fashion.
Note: the current implementation does NOT support multiple mds or rgw on
the same node.
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1469781
Signed-off-by: Sébastien Han <seb@redhat.com>
with_items is evaluated before the when condition so if the task that
registers the 'results' is skipped the task will fail with:
{"failed": true, "msg": "'dict object' has no attribute 'results'"}
Defaulting to an empty array fixes the issue.
Reverts: abdd66619e
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1482061
Signed-off-by: Sébastien Han <seb@redhat.com>
Problem: task "check for a ceph socket in containerized deployment" will
be skipped if we are not an OSD.
with_items are still evaluated before when conditions so if the task was
skipped the dict will be empty and then fail.
Adding a "not skipped" condition skips the execution of the task.
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1482061
Signed-off-by: Sébastien Han <seb@redhat.com>
Subhachandra Chandra
Sébastien Han
Andy McCrae
Guillaume Abrioux
Arano-kai
Andrew Schoen