Files
my-rook-config/pkg/operator/ceph/config/datapath_test.go
T
Sébastien HanandRohan CJ 90cd8224f4 ceph: add ceph-crash controller
A new controller to bootstrap ceph-crash pod on Ceph nodes running Ceph
pods only.

This implementation is unfortunately a mix of 'hacks' to make the daemon
working correclty. The ceph-crash script faced different issues:

* it's not a daemon
* it does not have any key in cephx
* it runs ceph commands under the hood which need an admin key and a
ceph.conf

On upstream Ceph, ceph-crash needs to grow better, once that happens we
will improve our implementation.

This also enhances osd provisionConfig struct with DataPathMap

Pod volumes and volume mount needs DataPathMap to perform the right
actions on log and crash dir. Exposing DataPathMap makes that possible.

Obviously, this is exposing ceph crash reports on the host as
well as pushing them into the mgr.
Basically, if a daemon fails, it'll put its core dump into
/var/lib/ceph/crash, bindmounting this dir on the host, ensures that the
crashes don't get lost when the pod dies.

Example:

```
[leseb@tarox~/go/src/github.com/rook/rook][rgw-liveprobe !] kubectl -n rook-ceph exec -ti rook-ceph-crashcollector-minikube-574858b99c-zvg4z bash
bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_MESSAGES: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_NUMERIC: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_TIME: cannot change locale (en_US.UTF-8): No such file or directory
[root@rook-ceph-crashcollector-minikube-574858b99c-zvg4z /]# ceph crash ls

[root@rook-ceph-osd-2-7644f99695-cljzh /]# pidof ceph-osd
13258 5415 5397
[root@rook-ceph-osd-2-7644f99695-cljzh /]# kill -SIGABRT 13258
[root@rook-ceph-osd-2-7644f99695-cljzh /]# ls /var/lib/ceph/crash/
2019-11-12_12:56:51.404109Z_39f060e1-776d-4605-8f28-85c97e53de96     posted

... wait maximum 10 min (ceph-crash scraps every 10 minutes)
... the container will exit

[root@rook-ceph-osd-2-7644f99695-cljzh /]# exit
[leseb@tarox~/go/src/github.com/rook/rook][rgw-liveprobe !]
[leseb@tarox~/go/src/github.com/rook/rook][rgw-liveprobe !] kubectl -n rook-ceph exec -ti rook-ceph-crashcollector-minikube-574858b99c-zvg4z bash
bash: warning: setlocale: LC_CTYPE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_COLLATE: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_MESSAGES: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_NUMERIC: cannot change locale (en_US.UTF-8): No such file or directory
bash: warning: setlocale: LC_TIME: cannot change locale (en_US.UTF-8): No such file or directory
[root@rook-ceph-crashcollector-minikube-574858b99c-zvg4z /]#
[root@rook-ceph-crashcollector-minikube-574858b99c-zvg4z /]#
[root@rook-ceph-crashcollector-minikube-574858b99c-zvg4z /]# ceph crash ls
2019-11-12_12:56:51.404109Z_39f060e1-776d-4605-8f28-85c97e53de96 osd.1
[root@rook-ceph-crashcollector-minikube-574858b99c-zvg4z /]# ls /var/lib/ceph/crash/
posted
[root@rook-ceph-crashcollector-minikube-574858b99c-zvg4z /]# ls /var/lib/ceph/crash/posted/
2019-11-12_12:56:51.404109Z_39f060e1-776d-4605-8f28-85c97e53de96
[root@rook-ceph-crashcollector-minikube-574858b99c-zvg4z /]# tail /var/lib/ceph/crash/posted/2019-11-12_12\:56\:51.404109Z_39f060e1-776d-4605-8f28-85c97e53de96/log
   1/ 5 mgr
   1/ 5 mgrc
   1/ 5 dpdk
   1/ 5 eventtrace
  -2/-2 (syslog threshold)
  -1/-1 (stderr threshold)
  max_recent     10000
  max_new         1000
  log_file /var/lib/ceph/crash/2019-11-12_12:56:51.404109Z_39f060e1-776d-4605-8f28-85c97e53de96/log
--- end dump of recent events ---
```

Signed-off-by: Sébastien Han <seb@redhat.com>
Co-authored-by: Rohan CJ <rohantmp@gmail.com>
2019-11-12 16:06:07 +01:00

78 lines
2.4 KiB
Go

/*
Copyright 2019 The Rook Authors. All rights reserved.
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/
package config
import (
"testing"
"github.com/stretchr/testify/assert"
)
func TestNewStatefulDaemonDataPathMap(t *testing.T) {
// mon
d := NewStatefulDaemonDataPathMap("/var/lib/rook", "/mon-a/data", MonType, "a", "rook-ceph")
assert.Equal(t, &DataPathMap{
HostDataDir: "/var/lib/rook/mon-a/data",
ContainerDataDir: "/var/lib/ceph/mon/ceph-a",
HostLogAndCrashDir: "/var/lib/rook/rook-ceph",
}, d)
// osd
d = NewStatefulDaemonDataPathMap("/var/lib/rook/", "osd0/", OsdType, "0", "rook-ceph")
assert.Equal(t, &DataPathMap{
HostDataDir: "/var/lib/rook/osd0",
ContainerDataDir: "/var/lib/ceph/osd/ceph-0",
HostLogAndCrashDir: "/var/lib/rook/rook-ceph",
}, d)
}
func TestNewStatelessDaemonDataPathMap(t *testing.T) {
// mgr
d := NewStatelessDaemonDataPathMap(MgrType, "a", "rook-ceph", "/var/lib/rook")
assert.Equal(t, &DataPathMap{
HostDataDir: "",
ContainerDataDir: "/var/lib/ceph/mgr/ceph-a",
HostLogAndCrashDir: "/var/lib/rook/rook-ceph",
}, d)
// mds
d = NewStatelessDaemonDataPathMap(MdsType, "myfs.a", "rook-ceph", "/var/lib/rook")
assert.Equal(t, &DataPathMap{
HostDataDir: "",
ContainerDataDir: "/var/lib/ceph/mds/ceph-myfs.a",
HostLogAndCrashDir: "/var/lib/rook/rook-ceph",
}, d)
// rgw
d = NewStatelessDaemonDataPathMap(RgwType, "objstore", "rook-ceph", "/var/lib/rook")
assert.Equal(t, &DataPathMap{
HostDataDir: "",
ContainerDataDir: "/var/lib/ceph/rgw/ceph-objstore",
HostLogAndCrashDir: "/var/lib/rook/rook-ceph",
}, d)
}
func TestNewDatalessDaemonDataPathMap(t *testing.T) {
// rbdmirror
d := NewDatalessDaemonDataPathMap("rook-ceph", "/var/lib/rook")
assert.Equal(t, &DataPathMap{
HostDataDir: "/var/lib/rook",
ContainerDataDir: "",
HostLogAndCrashDir: "/var/lib/rook/rook-ceph",
}, d)
}