Add Shipyard support for deploying clusters

This allows to quickly and easily deploy clusters (kind, ocp, acm) for
testing.
The kind clusters run locally and can be used for development, quick testing
and CI.

Signed-off-by: Mike Kolesnik <mkolesni@redhat.com>

Author: mkolesnik

.gitignore

@@ -30,3 +30,9 @@
 
 # Generated files
 manifest.json
+
+# Shipyard generated and downloaded
+.dapper
+Dockerfile.dapper
+Makefile.shipyard
+output/

.shipyard.yml

@@ -0,0 +1,5 @@
+---
+nodes: control-plane worker
+clusters:
+  cluster1:
+  cluster2:

Makefile

@@ -12,6 +12,15 @@ PLATFORMS ?= linux/amd64,linux/arm64
 GOOS ?= linux
 GOARCH ?= amd64
 
+# Shipyard configuration
+BASE_BRANCH = main
+LOAD_BALANCER = true
+ORG = skupperproject
+PROJECT = skupper
+SETTINGS = ./.shipyard.yml
+SHIPYARD_URL = https://raw.githubusercontent.com/submariner-io/shipyard/devel
+export BASE_BRANCH ORG PROJECT SHIPYARD_REPO SHIPYARD_URL
+
 all: generate-client build-cmd build-get build-config-sync build-controllers build-tests build-manifest
 
 build-tests:
@@ -142,3 +151,24 @@ release/arm64/skupper: cmd/skupper/skupper.go
 
 release/arm64.tgz: release/arm64/skupper
 	tar -czf release/arm64.tgz release/arm64/skupper
+
+ifneq (,$(DAPPER_HOST_ARCH))
+
+# Running in Shipyard's container
+
+include $(SHIPYARD_DIR)/Makefile.clusters
+
+else
+
+# Not running in Shipyard's container
+
+Makefile.shipyard:
+ifeq (,$(findstring s,$(firstword -$(MAKEFLAGS))))
+	@echo Downloading $@
+endif
+	@curl -sfLO $(SHIPYARD_URL)/$@
+
+ONLY_SHIPYARD_GOALS = true
+include Makefile.shipyard
+
+endif