local docker swarm cluster with docker-machine

Makefile

SHELL=/bin/bash

all:
	-$(MAKE) clean
	$(MAKE) start
	$(MAKE) join

start:
	docker-machine create --driver virtualbox d1
	docker-machine create --driver virtualbox d2
	docker-machine create --driver virtualbox d3

clean:
	docker-machine rm -f -y d1
	docker-machine rm -f -y d2
	docker-machine rm -f -y d3

join:
	$(eval MASTER_IP := $(shell docker-machine ip d1))
	@echo Master IP: $(MASTER_IP)
	$(eval JOIN_CMD := $(shell  \
		docker-machine ssh d1 "docker swarm init --advertise-addr $(MASTER_IP)" | \
		  grep "docker swarm join --token"))
	@echo Join Commmand: $(JOIN_CMD)
	# join workers
	docker-machine ssh d2 "$(JOIN_CMD)"
	docker-machine ssh d3 "$(JOIN_CMD)"