Commit Graph

581 Commits (d84161db1a8f201574681372d90f93248d92e445)

Author SHA1 Message Date
Guillaume Abrioux 886e1d85c7 purge: import ceph-defaults in purge osd play
Otherwise, `ceph_volume_debug` variable is undefined

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 33a544644a)
2020-08-13 14:21:44 +02:00
Guillaume Abrioux 88c9f6d969 common: don't enable debug log on ceph-volume calls by default
ceph-volume can generate large logs at some point.

debug logs by definition should be enabled only when debugging.

Let's make it customizable with a variable which is set to `False` by
default.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 448cc280b7)
2020-08-13 14:21:44 +02:00
Benoît Knecht 8e5d1159e0 purge-cluster: check if rbdmap exists
When running `infrastructure-playbooks/purge-cluster.yml` twice, it fails the
second time on the `ensure rbd devices are unmapped` task, because `rbdmap`
isn't installed anymore at that point.

This commit adds a check that ensures `rbdmap` is available, and skips the
`ensure rbd devices are unmapped` task if it isn't.

Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
(cherry picked from commit a57fd7a090)
2020-08-06 12:04:51 -04:00
Kevin Coakley 659262f687 Remove ceph-radosgw.target when switching to containerize daemons
The task "remove old systemd unit file" under "switching from
non-containerized to containerized ceph rgw" only removes
the ceph-radosgw@.service file. The task should also remove
the ceph-radosgw.target file, like the "remove old systemd unit
files" tasks for the mons, mgrs, osds, etc, in order to clean up
all of the unused systemd unit files.

Signed-off-by: Kevin Coakley <kcoakley@sdsc.edu>
(cherry picked from commit d19e6033b2)
2020-08-06 09:41:23 -04:00
Guillaume Abrioux 8cf17750ee shrink_osd: remove osd data directory
Otherwise it leaves an empty directory.
When shrinking and redeploying multiple OSDs you have no guarantee it
will reuse the same osd id.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 8933bfde33)
2020-08-06 13:10:42 +02:00
Benoît Knecht 4052ab29f2 shrink-osd: various fixes
This handles missing /etc/ceph/osd, by ensuring we actually found files in
`/etc/ceph/osd` before trying to slurp their content.

This also add a missing `| default(False)` to avoid fowlloing error:

```
fatal: [ceph01]: FAILED! =>
  msg: |-
    The conditional check 'ceph_osd_data_json[item.2]['encrypted'] | bool' failed. The error was: error while evaluating conditional (ceph_osd_data_json[item.2]['encrypted'] | bool): 'dict object' has no attribute 'encrypted'
```

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1862416

Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
(cherry picked from commit fe8fbd3ee2)
2020-08-06 13:10:42 +02:00
Dimitri Savineau cbdff5f95b rolling_update: restart mds after the upgrade
In addition of 155e2a2, the active mds daemons isn't stop/start
correctly as opposed as the other services so that daemon doesn't come
back after the upgrade.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1861688

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit ec0a37a74f)
2020-07-29 17:49:15 -04:00
Dimitri Savineau 7a970ac028 rolling_update: refact dashboard workflow
The dashboard upgrade workflow should do the same process than the ceph
upgrade otherwise any systemd unit modification won't be apply on the
monitoring/dashboard stack.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1859173

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit a6209bd957)
2020-07-27 10:49:02 -04:00
Dimitri Savineau 15872e3db1 rolling_update: stop/start instead of restart
During the daemon upgrade we're
  - stopping the service when it's not containerized
  - running the daemon role
  - start the service when it's not containerized
  - restart the service when it's containerized

This implementation has multiple issue.

1/ We don't use the same service workflow when using containers
or baremetal.

2/ The explicity daemon start isn't required since we'are already
doing this in the daemon role.

3/ Any non backward changes in the systemd unit template (for
containerized deployment) won't work due to the restart usage.

This patch refacts the rolling_update playbook by using the same service
stop task for both containerized and baremetal deployment at the start
of the upgrade play.
It removes the explicit service start task because it's already included
in the dedicated role.
The service restart tasks for containerized deployment are also
removed.

This following comment isn't valid because we should have backported
ceph-crash implementation in stable-4.0 before this commit, which was not
possible because of the needed tag v4.0.25.1 (async release for 4.1z1):

~~Finally, this adds the missing service stop task for ceph crash upgrade
workflow.~~

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1859173

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 155e2a23d5)
2020-07-27 09:43:01 -04:00
Guillaume Abrioux 02e7468b4a update: use tasks_from when including ceph-facts
When setting/unsetting osd flags, we can use `tasks_from` when importing
`ceph-facts` role to save some times given that we only need this role
for setting `container_binary`

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit d66b698be2)
2020-07-23 17:26:04 +02:00
Dimitri Savineau 5db4219f26 facts: explicitly disable facter and ohai
By default, ansible gathers facts from facter and ohai if installed on
the remote nodes, given we don't need them, let's exclude these facts
from our facts gathering

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit c95adc564b)
2020-07-20 21:23:48 +02:00
Guillaume Abrioux 518f4f579d rgw: fix multi instances scaleout
When rgw and osd are collocated, the current workflow prevents from
scaling out the radosgw_num_instances parameter when rerunning the
playbook.

The environment file used in the rgw systemd template is rendered when
executing the `ceph-rgw` role but during a new run of the playbook (in
order to scale out rgw instances), handlers are triggered from `ceph-osd`
role which is run before `ceph-rgw`, therefore it tries to start the new
rgw daemon whereas its corresponding environment file hasn't been
rendered yet and fails like following:

```
ceph-radosgw@rgw.ceph4osd3.rgw1.service failed to run 'start-pre' task: No such file or directory
```

This commit moves the tasks generating this file in `ceph-config` role
so it is generated early.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1851906

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 7dd68b9ac1)
2020-07-20 21:23:27 +02:00
Guillaume Abrioux 328db8bee1 rolling_update: add any_errors_fatal
If a failure occurs in ceph-validate, the upgrade playbook keeps running
where we expect it to fail.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 8f9cdf4b10)
2020-07-20 21:22:25 +02:00
Dimitri Savineau a99c94ea11 ceph-osd: remove ceph-osd-run.sh script
Since we only have one scenario since nautilus then we can just move
the container start command from ceph-osd-run.sh to the systemd unit
service.
As a result, the ceph-osd-run.sh.j2 template and the
ceph_osd_docker_run_script_path variable are removed.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 829990e60d)
2020-06-23 17:35:01 +02:00
Guillaume Abrioux 4e42503218 docker2podman: make images pulling optional
This commit makes the images pulling skipped if podman isn't installed
on the machine.

In OSP context, the podman installation is done later in the workflow,
it means all `podman pull` commands will fail.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1849559

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 37b20b6525)
2020-06-22 14:46:38 -04:00
Guillaume Abrioux 085341642e switch-to-containers: set and unset osd flags
The workflow in this playbook should be the same than in rolling_update,
we should first set noout and nodeep-scrub flags before migrating the
first osd and unset osd flags after the last osd is migrated.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 2cfaa056e0)
2020-06-17 12:15:49 -04:00
Guillaume Abrioux c847c2f117 switch_to_containers: don't set noup flag
We shouldn't set this flag when running switch_to_containers playbook.
Otherwise the playbook fails waiting for pgs to be clean.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1843569

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit b91d60d384)
2020-06-17 09:24:19 -04:00
Dimitri Savineau a165edb5ba switch_to_container: fix osd systemd regex
The systemd LOAD and ACTIVE fileds could have more than one space between
both values.
This update the systemd regex the same way we're using it in different
part of the code.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1843500

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 50140c9b5d)
2020-06-16 12:10:36 -04:00
Dimitri Savineau a97e24fee9 docker2podman: manage dashboard nodes
The dashboard nodes (alertmanager, grafana, node-exporter, and prometheus)
were not manage during the docker to podman migration.

This adds the systemd container template of those services to a dedicated
file (systemd.yml) in order to include it in the docker2podman playbook.

This also adds the dashboard container images pull from docker to podman.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1829389

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 252e78b4e4)
2020-06-03 13:20:24 -04:00
Dimitri Savineau 6f893e5ed9 docker2podman: pull images from docker daemon
The docker2podman playbook only installs the podman package and updates
the systemd units with the right container_binary value.

We never pull the container image so if one service is restarted then
the container image will be pulled first before the service can start
which could cause longer downstream.

To avoid to download the container image from internet again we can just
pull it from the local docker daemon.

The container_{binding,package,service}_name variables are removed
because they are only used in the ceph-container-engine role which
isn't call in this playbook.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit d38f21aeba)
2020-06-03 13:20:24 -04:00
Dimitri Savineau 8c4865cd14 rolling_update: fix rbdmirror group name
The rbdmirror group name was using the wrong variable definition.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit c0a213f928)
2020-06-03 13:20:03 -04:00
Dimitri Savineau 1921ace52d docker-to-podman: conditional docker commands
The docker commands should be based on the container_binary variable
otherwise running the playbook on a host without docker (like podman
only) will failed.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1829985

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
2020-06-03 13:19:28 -04:00
Dimitri Savineau 46c640c169 filestore-to-bluestore: fix py2 on skipped tasks
When using skipped variables with from_json filter and python2 then we
need to have a default value otherwise the skipped task will fail.

Unexpected templating type error occurred on
({{ (ceph_volume_lvm_list.stdout | from_json) }}): expected string or
buffer

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1790472

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 2b9edba131)
2020-04-20 13:38:19 -04:00
Guillaume Abrioux ba6bd3ca3d docker2podman: call `container_options_facts.yml` on osd nodes
We must call `ceph-osd` role from `container_options_facts.yml` because
ceph-osd-run.sh.j2 needs variables set in this file.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1819681

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 4a4f54f6ee)
2020-04-02 11:01:14 -04:00
Guillaume Abrioux 32f879de32 purge-container: get *all* osds id
Adding `--all` to the `systemctl list-units` command in order to get
*all* osds id on the node (including stoppped osds). Otherwise, it will
purge the cluster but there will be leftover after that.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1814542

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 5e7962ccf6)
2020-03-31 11:00:41 -04:00
Dimitri Savineau e2f1a0ade8 doc: update infra playbooks statements
We don't need to copy the infrastructure playbooks in the root
ceph-ansible directory.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 195944b123)
2020-03-16 14:43:35 +01:00
Dimitri Savineau 957156c0fe filestore-to-bluestore: stop ceph-volume services
We only disable the ceph-osd services but not the ceph-volume lvm
services during the filestore to bluestore migration.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 38a683e5bf)
2020-03-12 21:10:33 +01:00
Dimitri Savineau 928c792f8d filestore-to-bluestore: reuse dedicated journal
If the filestore configuration was using a dedicated journal with either
a partition or a LV/VG then we need to reuse this for bluestore DB.

When filestore is using a raw devices then we shouldn't destroy
everything (data + journal) but only data otherwise the journal
partition won't exist anymore.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1790479

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 535da53d69)
2020-03-12 21:10:33 +01:00
Dimitri Savineau 3b0ee83594 shrink-rbdmirror: fix presence after removal
We should add retry/delay to check the presence of the rbdmirror daemon
in the cluster status because the status takes some time to be updated.
Also the metadata.hostname isn't a good key to check because it doesn't
reflect the ansible_hostname fact. We should use metadata.id instead.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit d1316ce77b)
2020-03-03 15:19:45 +01:00
Dimitri Savineau 4b07d97346 shrink-mgr: fix systemd condition
This playbook was using mds systemd condition.
Also a command task was using pipeline which is not allowed.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit a664159061)
2020-03-03 15:19:45 +01:00
Dimitri Savineau 92b671bcbe shrink: don't use localhost node
The ceph-facts are running on localhost so if this node is using a
different OS/release that the ceph node we can have a mismatch between
docker/podman container binary.
This commit also reduces the scope of the ceph-facts role because we only
need the container_binary tasks.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 08ac2e3034)
2020-03-03 15:19:45 +01:00
Dimitri Savineau e037e99bd2 purge: stop rgw instances by iteration
It looks like that the service module doesn't support wildcard anymore
for stopping/disabling multiple services.

fatal: [rgw0]: FAILED! => changed=false
  msg: 'This module does not currently support using glob patterns,
        found ''*'' in service name: ceph-radosgw@*'
...ignoring

Instead we should iterate over the rgw_instances list.

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 9d3b49293d)
2020-03-03 10:31:48 +01:00
Guillaume Abrioux 5a51bd12dc common: support OSDs with more than 2 digits
When running environment with OSDs having ID with more than 2 digits,
some tasks don't match the system units and therefore, playbook can fail.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1805643

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit a084a2a347)
2020-02-28 11:06:47 -05:00
Guillaume Abrioux d254a8b938 shrink-osd: support shrinking ceph-disk prepared osds
This commit adds the ceph-disk prepared osds support

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1796453

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 1de2bf9991)
2020-02-26 18:16:48 +01:00
Guillaume Abrioux 21851457d6 shrink-osd: don't run ceph-facts entirely
We need to call ceph-facts only for setting `container_binary`.
Since this task has been isolated we can use `tasks_from` to only execute the
needed task.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 55970b18f1)
2020-02-26 18:16:48 +01:00
Benoît Knecht 10b3bb2727 infrastructure-playbooks: Run shrink-osd tasks on monitor
Instead of running shring-osd tasks on localhost and delegating most of
them to the first monitor, run all of them on the first monitor
directly.

This has the added advantage of becoming root on the monitor only, not
on localhost.

Signed-off-by: Benoît Knecht <bknecht@protonmail.ch>
(cherry picked from commit 8b3df4e418)
2020-02-24 16:51:33 -05:00
Guillaume Abrioux 1d2a395aaf switch_to_containers: increase health check values
This commit increases the default values for the following variable
consumed in switch-from-non-containerized-to-containerized-ceph-daemons.yml
playbook.
This also moves these variables in `ceph-defaults` role so the user can
set different values if needed.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1783223

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 3700aa5385)
2020-02-10 12:57:17 -05:00
Guillaume Abrioux cdc3e10cf3 purge/update: remove backward compatibility legacy
This was introduced in 3.1 and marked as deprecation
We can definitely drop it in stable-4.0

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 0441812959)
2020-02-03 09:33:05 -05:00
Guillaume Abrioux 5c3ba0787c switch_to_containers: exclude clients nodes from facts gathering
just like site.yml and rolling_update, let's exclude clients node from
the fact gathering.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 332c39376b)
2020-02-03 09:32:20 -05:00
Dimitri Savineau 487be2675a filestore-to-bluestore: skip bluestore osd nodes
If the OSD node is already using bluestore OSDs then we should skip
all the remaining tasks to avoid purging OSD for nothing.
Instead we warn the user.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1790472

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit 83c5a1d7a8)
2020-02-03 15:16:51 +01:00
Guillaume Abrioux 675b6788f4 update: remove legacy tasks
These tasks should have been removed with backport #4756

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1793564

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
2020-02-03 15:16:13 +01:00
wujie1993 dcd4b2955a purge: fix purge cluster failed
Fix purge cluster failed when local container images does not exist.

Purge node-exporter and grafana-server only when dashboard_enabled is set to True.

Signed-off-by: wujie1993 qq594jj@gmail.com
(cherry picked from commit d8b0b3cbd9)
2020-02-03 15:14:56 +01:00
Dimitri Savineau f982a70f02 filestore-to-bluestore: fix undefine osd_fsid_list
If the playbook is used on a host running bluestore OSDs then the
osd_fsid_list won't be filled because the bluestore OSDs are reported
with 'type: block' via ceph-volume lvm list command but we are looking
for 'type: data' (filestore).

TASK [zap ceph-volume prepared OSDs] *********
fatal: [xxxxx]: FAILED! =>
  msg: '''osd_fsid_list'' is undefined

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1729267

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit cd76054f76)
2020-01-28 22:21:49 -05:00
Dimitri Savineau 0a2927ce5e filestore-to-bluestore: don't fail when with no PV
When the PV is already removed from the devices then we should not fail
to avoid errors like:

stderr: No PV found on device /dev/sdb.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1729267

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit a9c2300545)
2020-01-24 16:14:47 -05:00
Guillaume Abrioux fd217d9f08 rolling_update: support upgrading 3.x + ceph-metrics on a dedicated node
When upgrading from RHCS 3.x where ceph-metrics was deployed on a
dedicated node to RHCS 4.0, it fails like following:

```
fatal: [magna005]: FAILED! => changed=false
  gid: 0
  group: root
  mode: '0755'
  msg: 'chown failed: failed to look up user ceph'
  owner: root
  path: /etc/ceph
  secontext: unconfined_u:object_r:etc_t:s0
  size: 4096
  state: directory
  uid: 0
```

because we are trying to run `ceph-config` on this node, it doesn't make
sense so we should simply run this play on all groups except
`[grafana-server]`.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1793885

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit e5812fe45b)
2020-01-22 18:28:54 +01:00
Dimitri Savineau 0abea70e29 filestore-to-bluestore: fix osd_auto_discovery
When osd_auto_discovery is set then we need to refresh the
ansible_devices fact between after the filestore OSD purge
otherwise the devices fact won't be populated.
Also remove the gpt header on ceph_disk_osds_devices because
the devices is empty at this point for osd_auto_discovery.
Adding the bool filter when needed.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1729267

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit bb3eae0c80)
2020-01-22 10:06:17 +01:00
Dimitri Savineau e4965e9ea9 filestore-to-bluestore: --destroy with raw devices
We still need --destroy when using a raw device otherwise we won't be
able to recreate the lvm stack on that device with bluestore.

Running command: /usr/sbin/vgcreate -s 1G --force --yes ceph-bdc67a84-894a-4687-b43f-bcd76317580a /dev/sdd
 stderr: Physical volume '/dev/sdd' is already in volume group 'ceph-b7801d50-e827-4857-95ec-3291ad6f0151'
  Unable to add physical volume '/dev/sdd' to volume group 'ceph-b7801d50-e827-4857-95ec-3291ad6f0151'
  /dev/sdd: physical volume not initialized.
--> Was unable to complete a new OSD, will rollback changes

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1792227

Signed-off-by: Dimitri Savineau <dsavinea@redhat.com>
(cherry picked from commit f995b079a6)
2020-01-21 18:26:55 +01:00
Guillaume Abrioux 0db611ebf8 shrink-mds: fix condition on fs deletion
the new ceph status registered in `ceph_status` will report `fsmap.up` =
0 when it's the last mds given that it's done after we shrink the mds,
it means the condition is wrong. Also adding a condition so we don't try
to delete the fs if a standby node is going to rejoin the cluster.

Closes: https://bugzilla.redhat.com/show_bug.cgi?id=1787543

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 3d0898aa5d)
2020-01-15 11:28:12 +01:00
Guillaume Abrioux 2d85fab02d osd: support scaling up using --limit
This commit lets add-osd.yml in place but mark the deprecation of the
playbook.
Scaling up OSDs is now possible using --limit

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit 3496a0efa2)
2020-01-14 09:12:34 -05:00
Guillaume Abrioux e034a6da69 docker2podman: use set_fact to override variables
play vars have lower precedence than role vars and `set_fact`.
We must use a `set_fact` to reset these variables.

Signed-off-by: Guillaume Abrioux <gabrioux@redhat.com>
(cherry picked from commit b0c491800a)
2020-01-10 17:41:27 +01:00