Add submariner-networkplugin-syncer stub

This adds a simple image and binary for the submariner-networkplugin-syncer
which will be used to test the eventhandler controller which will be built
on next commits.

Co-Authored-by: Sridhar Gaddam <[email protected]>
Signed-off-by: Miguel Angel Ajo <[email protected]>

Makefile

@@ -46,11 +46,15 @@ bin/submariner-route-agent: vendor/modules.txt $(shell find pkg/routeagent)
 bin/submariner-globalnet: vendor/modules.txt $(shell find pkg/globalnet)
 	${SCRIPTS_DIR}/compile.sh $@ ./pkg/globalnet/main.go $(BUILD_ARGS)
 
-build: bin/submariner-engine bin/submariner-route-agent bin/submariner-globalnet
+bin/submariner-networkplugin-syncer: vendor/modules.txt $(shell find pkg/networkplugin-syncer)
+	${SCRIPTS_DIR}/compile.sh $@ ./pkg/networkplugin-syncer/main.go $(BUILD_ARGS)
+
+build: bin/submariner-engine bin/submariner-route-agent bin/submariner-globalnet bin/submariner-networkplugin-syncer
 
 ci: validate unit build images
 
-images: build package/.image.submariner package/.image.submariner-route-agent package/.image.submariner-globalnet
+images: build package/.image.submariner package/.image.submariner-route-agent package/.image.submariner-globalnet \
+		package/.image.submariner-networkplugin-syncer
 
 images-submariner-libreswan-git: build package/Dockerfile.submariner-libreswan-git
 	$(SCRIPTS_DIR)/build_image.sh -i submariner-libreswan-git -f package/Dockerfile.submariner-libreswan-git

package/Dockerfile.submariner-networkplugin-syncer

@@ -0,0 +1,10 @@
+FROM registry.access.redhat.com/ubi8/ubi-minimal
+
+WORKDIR /var/submariner
+
+# install the networkpluginc-sync
+COPY package/submariner-networkplugin-syncer.sh bin/submariner-networkplugin-syncer /usr/local/bin/
+
+ENTRYPOINT ["/usr/local/bin/submariner-networkplugin-syncer.sh"]
+
+USER ${USER_UID}

package/submariner-networkplugin-syncer.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+set -e -x
+
+trap "exit 1" SIGTERM SIGINT
+
+SUBMARINER_VERBOSITY=${SUBMARINER_VERBOSITY:-2}
+
+if [ "${SUBMARINER_DEBUG}" == "true" ]; then
+    DEBUG="-v=3"
+else
+    DEBUG="-v=${SUBMARINER_VERBOSITY}"
+fi
+
+exec submariner-networkplugin-sync ${DEBUG} -alsologtostderr

pkg/networkplugin-syncer/main.go

@@ -0,0 +1,4 @@
+package main
+
+func main() {
+}