Merge pull request #17459 from brahmaroutu/Power_Z_CI

Build and test Docker on IBM Power and Z using gccgo. Enable CI on Po…
Upstream-commit: 249b3a9479048bcec8da0666c2e224dddcfc3de8
Component: engine

components/engine/hack/make/.ensure-images

@@ -0,0 +1,9 @@
+for image in `docker images | awk '{print $1}'`; do
+if ( [ -z "${image##$IMAGEREPO/busybox}" ] ); then
+	docker tag $image busybox:latest
+	docker rmi $image
+elif ( [ -z "${image##$IMAGEREPO/hello-world}" ] ); then
+	docker tag $image:frozen hello-world:frozen
+	docker rmi $image:frozen
+fi
+done

components/engine/hack/make/.integration-daemon-setup

@@ -2,4 +2,5 @@
 
 bundle .ensure-emptyfs
 bundle .ensure-frozen-images
+bundle .ensure-images
 bundle .ensure-httpserver

components/engine/hack/make/gccgo

@@ -10,6 +10,7 @@ source "${MAKEDIR}/.go-autogen"
 if [[ "${BUILDFLAGS[@]}" =~ 'netgo ' ]]; then
 	EXTLDFLAGS_STATIC+=' -lnetgo'
 fi
+# gccgo require explicit flag -pthread to allow goroutines to work.
 go build -compiler=gccgo \
 	-o "$DEST/$BINARY_FULLNAME" \
 	"${BUILDFLAGS[@]}" \
@@ -18,6 +19,7 @@ go build -compiler=gccgo \
 		$EXTLDFLAGS_STATIC
 		-Wl,--no-export-dynamic
 		-ldl
+		-pthread
 	" \
 	./docker