Use UTC when calling date command

snf-image-helper/common.sh

@@ -35,6 +35,7 @@ BLKID=blkid
 BLOCKDEV=blockdev
 REGLOOKUP=reglookup
 CHNTPW=chntpw
+DATE="date -u" # Time in UTC
 
 CLEANUP=( )
 ERRORS=( )

snf-image-helper/snf-image-helper.in

@@ -90,7 +90,7 @@ if [ -z "$SNF_IMAGE_PROPERTY_EXCLUDE_ALL_TASKS" ]; then
     echo "Execute all snf-image tasks...."
     $RUN_PARTS -v --exit-on-error "@tasksdir@" 2>&1|
         while IFS= read -r line; do
-            echo $(date +%Y:%m:%d-%H:%M:%S.%N) "$line"
+            echo $($DATE +%Y:%m:%d-%H:%M:%S.%N) "$line"
         done
 fi
 

snf-image-host/common.sh.in

@@ -24,6 +24,7 @@ QEMU_IMG="qemu-img"
 INSTALL_MBR="install-mbr"
 TIMEOUT="timeout"
 CURL="curl"
+DATE="date -u" # Time in UTC
 
 # Temporary use stderr as monitoring file descriptor.
 # `create' will overwrite this

snf-image-host/create

@@ -166,7 +166,7 @@ add_cleanup rm "$snapshot"
 
 "$QEMU_IMG" create -f qcow2 -b "$HELPER_IMG" "$snapshot"
 
-echo -n "$(date +%Y:%m:%d-%H:%M:%S.%N) " >&2
+echo -n "$($DATE +%Y:%m:%d-%H:%M:%S.%N) " >&2
 log_info "Starting customization VM..."
 set +e
 $TIMEOUT -k "$HELPER_HARD_TIMEOUT" "$HELPER_SOFT_TIMEOUT" \
@@ -196,7 +196,7 @@ if [ $rc -ne 0 ]; then
     fi
     exit 1
 else
-    echo -n "$(date +%Y:%m:%d-%H:%M:%S.%N)" >&2
+    echo -n "$($DATE +%Y:%m:%d-%H:%M:%S.%N)" >&2
     log_info "Customization VM finished."
 fi