Generate the install.yaml from helm template

This implements a `make gen-install` target that will generate the
install.yaml via `helm template`. This also extends `make test`
to have a test to ensure that the `install.yaml` is always kept
up to sync with the Helm chart, otehrwise the build will fail.

This does remove the explicit permissions for RBAC, but we don't
have a specific need for them right now, so I feel it's worth the
sacrifice to ensure these two configuration options stay in sync.

Blocks on googleforgames#170, Parent ticket: googleforgames#101

build/Makefile

@@ -98,9 +98,19 @@ build-images: build-controller-image build-agones-sdk-image
 build-sdks: build-sdk-cpp
 
 # Run all tests
-test: ensure-build-image
+test: ensure-build-image test-go test-install-yaml
+
+# Run go tests
+test-go:
 	docker run --rm $(common_mounts) $(build_tag) go test -race $(agones_package)/...
 
+# Run test on install yaml - make sure there is no change
+# mostly this is for CI
+test-install-yaml:
+	cp $(agones_path)/install/yaml/install.yaml /tmp/install.yaml
+	$(MAKE) gen-install
+	diff /tmp/install.yaml $(agones_path)/install/yaml/install.yaml
+
 # Push all the images up to $(REGISTRY)
 push: push-controller-image push-agones-sdk-image
 
@@ -149,6 +159,11 @@ build-sdk-cpp: ensure-build-image
 push-agones-sdk-image: ensure-build-image
 	docker push $(sidecar_tag)
 
+# Generate the static install script
+gen-install: ensure-build-image
+	docker run --rm $(common_mounts) $(DOCKER_RUN_ARGS) $(build_tag) bash -c \
+		'helm template --name=agones-manual $(mount_path)/install/helm/agones > $(mount_path)/install/yaml/install.yaml'
+
 # Generate the SDK gRPC server and client code
 gen-gameservers-sdk-grpc: ensure-build-image
 	docker run --rm $(common_mounts) -w $(mount_path) $(build_tag) /root/gen-grpc-go.sh

build/README.md

@@ -275,6 +275,9 @@ Compile the gameserver controller and then build the docker image
 #### `make build-agones-sdk-image`
 Compile the gameserver sidecar and then build the docker image
 
+#### `make gen-install`
+Generate the `/install/yaml/install.yaml` from the Helm template
+
 #### `make gen-crd-client`
 Generate the Custom Resource Definition client(s)