Always set pg_num_min to the proper value

Currently if pg_num_min is less than the value specified in values.yaml
or overrides no change to pg_num_min is made during updates when the value
should be increased. This PS will ensure the proper value is always set.

Change-Id: I79004506b66f2084402af59f9f41cda49a929794

ceph-client/Chart.yaml

@@ -15,6 +15,6 @@ apiVersion: v1
 appVersion: v1.0.0
 description: OpenStack-Helm Ceph Client
 name: ceph-client
-version: 0.1.21
+version: 0.1.22
 home: https://github.com/ceph/ceph-client
 ...

ceph-client/templates/bin/pool/_init.sh.tpl

@@ -200,9 +200,12 @@ function create_pool () {
       pg_num=$(jq '.pg_num' <<< "${pool_values}")
       pg_num_min=$(jq '.pg_num_min' <<< "${pool_values}")
       # set pg_num_min to PG_NUM_MIN before enabling autoscaler
-      if [[ ${pg_num_min} -gt ${PG_NUM_MIN} ]] || [[ ${pg_num} -gt ${PG_NUM_MIN} ]]; then
-        ceph --cluster "${CLUSTER}" osd pool set "${POOL_NAME}" pg_num_min ${PG_NUM_MIN}
+      if [[ ${pg_num} -lt ${PG_NUM_MIN} ]]; then
+        ceph --cluster "${CLUSTER}" osd pool set "${POOL_NAME}" pg_autoscale_mode off
+        ceph --cluster "${CLUSTER}" osd pool set "${POOL_NAME}" pg_num ${PG_NUM_MIN}
+        ceph --cluster "${CLUSTER}" osd pool set "${POOL_NAME}" pgp_num ${PG_NUM_MIN}
       fi
+      ceph --cluster "${CLUSTER}" osd pool set "${POOL_NAME}" pg_num_min ${PG_NUM_MIN}
       ceph --cluster "${CLUSTER}" osd pool set "${POOL_NAME}" pg_autoscale_mode on
     else
       ceph --cluster "${CLUSTER}" osd pool set "${POOL_NAME}" pg_autoscale_mode off

releasenotes/notes/ceph-client.yaml

@@ -22,4 +22,5 @@ ceph-client:
   - 0.1.19 Use full image ref for docker official images
   - 0.1.20 Export crash dumps when Ceph daemons crash
   - 0.1.21 Fix Ceph checkDNS script
+  - 0.1.22 Set pg_num_min in all cases
 ...