[ceph] Fix for ceph-osd pods restart

This PS updates ceph-osd pod containers making
sure that osd pods are not stuck at deletion. In
this PS we are taking care of another background
process that has to be terminated by preStop
script.

Change-Id: Icebb6119225b4b88fb213932cc3bcf78d650848f

ceph-osd/Chart.yaml

@@ -15,6 +15,6 @@ apiVersion: v1
 appVersion: v1.0.0
 description: OpenStack-Helm Ceph OSD
 name: ceph-osd
-version: 0.1.56
+version: 0.1.57
 home: https://github.com/ceph/ceph
 ...

ceph-osd/templates/bin/osd/_log-runner-stop.sh.tpl

@@ -26,3 +26,10 @@ do
   kill -9 ${TAIL_PID};
   sleep 1;
 done
+
+SLEEP_PID="$(cat /tmp/ceph-log-runner-sleep.pid)"
+while kill -0 ${SLEEP_PID} >/dev/null 2>&1;
+do
+  kill -9 ${SLEEP_PID};
+  sleep 1;
+done

ceph-osd/templates/bin/osd/_log-tail.sh.tpl

@@ -25,7 +25,7 @@ function tail_file () {
   while $keep_running; do
     tail --retry -f "${log_file}" &
     tail_pid=$!
-    echo $tail_pid > /tmp/ceph-log-runner.pid
+    echo $tail_pid > /tmp/ceph-log-runner-tail.pid
     wait $tail_pid
     if [ -f /tmp/ceph-log-runner.stop ]; then
       keep_running=false
@@ -37,6 +37,8 @@ function tail_file () {
 function truncate_log () {
   while $keep_running; do
     sleep ${TRUNCATE_PERIOD}
+    sleep_pid=$!
+    echo $sleep_pid > /tmp/ceph-log-runner-sleep.pid
     if [[ -f ${log_file} ]] ; then
       truncate -s "${TRUNCATE_SIZE}" "${log_file}"
     fi

releasenotes/notes/ceph-osd.yaml

@@ -57,4 +57,5 @@ ceph-osd:
   - 0.1.54 Remove use of tini for ceph-daemon
   - 0.1.55 Update ceph-osd pod containers to make sure OSD pods are properly terminated at restart
   - 0.1.56 Add preStop lifecycle script to log-runner
+  - 0.1.57 Added code to kill another background process in log-runner at restart
 ...