Fix fm-api service startup

The fm-api service is not properly started since the status logic is
wrong.

Updated the status logic to drop the regex approach and use the PIDFILE
instead.

There is a confirm_stop logic step which still needs to use the regex
approach because the main process spawns children. Updated the regex
for confirm_stop logic step. Now looking for /usr/bin/pythton3 and
/usr/libexec/platform-python.

Story: 2008454
Task: 42631
Depends-On: I970c2600475e32f2c5fb815738a2fe79f99a5b17
Signed-off-by: Dan Voiculeasa <dan.voiculeasa@windriver.com>
Change-Id: Ia77988ce282ea17de84b89e833ec686df342b3c4

fm-rest-api/fm/scripts/fm-api

@@ -39,18 +39,15 @@ export PATH
 
 status()
 {
-    # Status function has a standard set of return codes to indicate daemon status
-    # http://refspecs.linuxbase.org/LSB_3.1.0/LSB-Core-generic/LSB-Core-generic/iniscrptact.html
-
-    local my_processes=`pgrep -l -f "^(python|/usr/bin/python|/usr/bin/python2|/usr/bin/python3) ${DAEMON}([^\w-]|$)"`
-
-    if [ -z "${my_processes}" ]; then
-        echo "$NAME is not running"
-        return 1
+    pid=`cat $PIDFILE 2>/dev/null`
+    if [ -n "$pid" ]; then
+        if ps -p $pid | grep $NAME &> /dev/null ; then
+            echo "$NAME is running"
+            return 0
+        fi
     fi
-
-    echo "$NAME is running"
-    return 0
+    echo "$NAME is not running"
+    return 1
 }
 
 start ()
@@ -82,12 +79,12 @@ start ()
 
 confirm_stop()
 {
-    local my_processes=`pgrep -l -f "^(python|/usr/bin/python|/usr/bin/python2|/usr/bin/python3) ${DAEMON}([^\w-]|$)"`
+    local my_processes=`pgrep -l -f "^(python|/usr/bin/python|/usr/bin/python2|/usr/bin/python3|/usr/libexec/platform-python) ${DAEMON}([^\w-]|$)"`
 
     if [ -n "${my_processes}" ]
     then
         logger -t $NAME "About to SIGKILL the following: ${my_processes}"
-        pkill -KILL -f "^(python|/usr/bin/python|/usr/bin/python2) ${DAEMON}([^\w-]|$)"
+        pkill -KILL -f "^(python|/usr/bin/python|/usr/bin/python2|/usr/bin/python3|/usr/libexec/platform-python) ${DAEMON}([^\w-]|$)"
     fi
 }