Set up /var/run/sysinv_tmp as sysinv's default temp files location

sysinv call the k8s python client to perform a number of operations.
The k8s python client creates temp files under /tmp and continues to
use these tmp files for the life-cycle of the processes.

However systemd-tmpfiles-clean.service will run every day to clean up
files in /tmp dir that are older than 10 days. If the k8s client code
is not triggered for more than 10 days (thus its temp files are not
accessed for more than 10 days), these temp files will be removed as
part of the cleanup. Certain sysinv operations then starts to fail with
an error that the tmp file is no longer there.

This is a known issue of kubernetes python client:
https://github.com/kubernetes-client/python/issues/765

The commit fixes this issue by setting TMPDIR to /var/run/sysinv_tmp
when sm starts sysinv-conductor and sysinv-inv.

Change-Id: I8544272b2431607ed1041473c5da2eecb64635af
Closes-Bug: 1883599
Signed-off-by: Andy Ning <andy.ning@windriver.com>

sysinv/sysinv/sysinv/scripts/sysinv-api

@@ -56,6 +56,7 @@ OCF_RESKEY_client_binary_default="system"
 : ${OCF_RESKEY_client_binary=${OCF_RESKEY_client_binary_default}}
 
 mydaemon="/usr/bin/${OCF_RESKEY_binary}"
+TMP_DIR=/var/run/sysinv_tmp
 
 #######################################################################
 
@@ -136,6 +137,22 @@ END
    return ${OCF_SUCCESS}
 }
 
+sysinv_api_tmpdir () {
+    local rc
+
+    if [ ! -d "$TMP_DIR" ]; then
+        mkdir -p "$TMP_DIR"
+        rc=$?
+        if [ $rc -ne 0 ]; then
+            ocf_log err "Inventory Service (${OCF_RESKEY_binary}) failed to create temp dir (rc=${rc})"
+            return ${OCF_NOT_RUNNING}
+        fi
+        chown sysinv:sysinv "$TMP_DIR"
+    fi
+    export TMPDIR="$TMP_DIR"
+    return ${OCF_SUCCESS}
+}
+
 sysinv_api_validate() {
 
     local rc
@@ -392,6 +409,10 @@ esac
 # Anything except meta-data and help must pass validation
 sysinv_api_validate || exit $?
 
+# Set up tmpfiles directory to avoid temp files being
+# cleaned up by systemd tmpfiles clean service.
+sysinv_api_tmpdir || exit $?
+
 if [ ${OCF_RESKEY_dbg} = "true" ] ; then
     ocf_log info "${binname}:${__OCF_ACTION} action"
 fi

sysinv/sysinv/sysinv/scripts/sysinv-conductor

@@ -40,6 +40,7 @@ OCF_RESKEY_config_default="/etc/sysinv/sysinv.conf"
 : ${OCF_RESKEY_config=${OCF_RESKEY_config_default}}
 
 mydaemon="/usr/bin/${OCF_RESKEY_binary}"
+TMP_DIR="/var/run/sysinv_tmp"
 
 #######################################################################
 
@@ -111,6 +112,21 @@ END
    return ${OCF_SUCCESS}
 }
 
+sysinv_conductor_tmpdir () {
+    local rc
+    if [ ! -d "$TMP_DIR" ]; then
+        mkdir -p "$TMP_DIR"
+        rc=$?
+        if [ $rc -ne 0 ]; then
+            ocf_log err "Inventory Service (${OCF_RESKEY_binary}) failed to create temp dir (rc=${rc})"
+            return ${OCF_NOT_RUNNING}
+        fi
+        chown sysinv:sysinv "$TMP_DIR"
+    fi
+    export TMPDIR="$TMP_DIR"
+    return ${OCF_SUCCESS}
+}
+
 sysinv_conductor_validate() {
 
     local rc
@@ -389,10 +405,15 @@ esac
 # Anything except meta-data and help must pass validation
 sysinv_conductor_validate || exit $?
 
+# Set up tmpfiles directory to avoid temp files being
+# cleaned up by systemd tmpfiles clean service.
+sysinv_conductor_tmpdir || exit $?
+
 if [ ${OCF_RESKEY_dbg} = "true" ] ; then
     ocf_log info "${binname}:${__OCF_ACTION} action"
 fi
 
+
 case ${__OCF_ACTION} in
 
     start)        sysinv_conductor_start