Add Tag info to docker label meta data

Signed-off-by: Jipan Yang <jipan.yang@alibaba-inc.com>

functions.sh

@@ -55,7 +55,11 @@ sonic_get_version() {
     local latest_tag=$(git describe --tags --abbrev=0)
     local branch_name=$(git rev-parse --abbrev-ref HEAD)
     if [ -n "$(git status --untracked-files=no -s --ignore-submodules)" ]; then
-        local dirty="-dirty-$DIRTY_SUFFIX"
+        if [ -z "$DIRTY_SUFFIX" ]; then
+            local dirty="-dirty-"$(date +%Y%m%d\.%H%M%S)
+        else
+            local dirty="-dirty-$DIRTY_SUFFIX"
+        fi
     fi
     BUILD_NUMBER=${BUILD_NUMBER:-0}
     ## Check if we are on tagged commit

slave.mk

@@ -9,6 +9,7 @@ SHELL = /bin/bash
 USER = $(shell id -un)
 UID = $(shell id -u)
 GUID = $(shell id -g)
+SONIC_GET_VERSION=$(shell . functions.sh && sonic_get_version)
 
 .SECONDEXPANSION:
 
@@ -393,6 +394,7 @@ $(addprefix $(TARGET_PATH)/, $(SONIC_SIMPLE_DOCKER_IMAGES)) : $(TARGET_PATH)/%.g
 		--build-arg uid=$(UID) \
 		--build-arg guid=$(GUID) \
 		--build-arg docker_container_name=$($*.gz_CONTAINER_NAME) \
+		--label Tag=$(SONIC_GET_VERSION) \
 		-t $* $($*.gz_PATH) $(LOG)
 	docker save $* | gzip -c > $@
 	# Clean up
@@ -425,6 +427,7 @@ $(addprefix $(TARGET_PATH)/, $(SONIC_DOCKER_IMAGES)) : $(TARGET_PATH)/%.gz : .pl
 		--build-arg uid=$(UID) \
 		--build-arg guid=$(GUID) \
 		--build-arg docker_container_name=$($*.gz_CONTAINER_NAME) \
+		--label Tag=$(SONIC_GET_VERSION) \
 		-t $* $($*.gz_PATH) $(LOG)
 	docker save $* | gzip -c > $@
 	# Clean up