Make disk safety check configurable

[wimpers]

We should make the disk safety check configurable you can can disable the check for global backends or local backends (and maybe even allow to exclude certain backends by name)

[wimpers]

Might be worthwhile to tackle #459 at the same time.

[wimpers]

This one is for OPS to fix their CheckMk.

[wimpers]

After BAM: decision was to do it name based

[JeffreyDevloo]

Fixed by #468
Packaged in openvstorage-health-check_3.8.0-dev.1527510338.6c60a57-1_amd64.deb

Usage:

root@DEV-3N-199-181:~# ovs healthcheck alba disk-safety-test --help
Usage: alba alba disk-safety-test [OPTIONS]

  Verifies that namespaces have enough safety

Options:
  -b, --backend TEXT             Backend(s) to check for. Can be provided
                                 multiple times. Ignored if --skip-backend
                                 option is given
  -s, --skip-backend TEXT        Backend(s) to skip checking for. Can be
                                 provided multiple times
  -i, --include-errored-as-dead  OSDs with errors as treated as dead ones
                                 during the calculation
  --help                         Show this message and exi

Examples:

root@DEV-3N-199-181:~# ovs healthcheck alba disk-safety-test -b mybackend
[INFO] Starting OpenvStorage Healthcheck version 3.4.8-1
[INFO] ======================
No handlers could be found for logger "ovs_extensions.generic.volatilemutex"
[SUCCESS] Call is being executed by DEV-3N-199-182 - 10.100.199.182.
[INFO] Recap of Health Check!
[INFO] ======================
[INFO] SUCCESS=1 FAILED=0 SKIPPED=0 WARNING=0 EXCEPTION=0
root@DEV-3N-199-181:~# ovs healthcheck alba disk-safety-test -b mybackend
[INFO] Starting OpenvStorage Healthcheck version 3.4.8-1
[INFO] ======================
[INFO] Checking disk safety on backend: mybackend
[INFO] Checking policy 1,2 with max. disk safety 2
[SUCCESS] All data is safe on backend mybackend with 7 namespace(s)
[INFO] Recap of Health Check!
[INFO] ======================
[INFO] SUCCESS=1 FAILED=0 SKIPPED=0 WARNING=0 EXCEPTION=0
root@DEV-3N-199-181:~# ovs healthcheck alba disk-safety-test -s mybackend
[INFO] Starting OpenvStorage Healthcheck version 3.4.8-1
[INFO] ======================
[INFO] Checking disk safety on backend: mybackend02
[INFO] Checking policy 1,2 with max. disk safety 2
[SUCCESS] All data is safe on backend mybackend02 with 6 namespace(s)
[INFO] Checking disk safety on backend: mybackend-global
[INFO] Checking policy 1,1 with max. disk safety 1
[SUCCESS] All data is safe on backend mybackend-global with 4 namespace(s)
[INFO] Recap of Health Check!
[INFO] ======================
[INFO] SUCCESS=2 FAILED=0 SKIPPED=0 WARNING=0 EXCEPTION=0
root@DEV-3N-199-181:~# ovs healthcheck alba disk-safety-test -s mybackend -s mybackend-global
[INFO] Starting OpenvStorage Healthcheck version 3.4.8-1
[INFO] ======================
[INFO] Checking disk safety on backend: mybackend02
[INFO] Checking policy 1,2 with max. disk safety 2
[SUCCESS] All data is safe on backend mybackend02 with 6 namespace(s)
[INFO] Recap of Health Check!
[INFO] ======================
[INFO] SUCCESS=1 FAILED=0 SKIPPED=0 WARNING=0 EXCEPTION=0
root@DEV-3N-199-181:~# 

[JeffreyDevloo]

Released in https://github.com/openvstorage/openvstorage-health-check/releases/tag/3.4.9 and https://github.com/openvstorage/openvstorage-health-check/releases/tag/3.8.0