Makefile

# Makefile for deploying redirector on Google Cloud Platform.
# 
# To customize for personal use:
#   * Change gs_redirector to refer to your own Google Cloud Storage bucket.
#   * make install-redirector
#
# To add a new host:
#   * Copy the start-rsc-io stanza and customize VM name, address name, import= and repo=.
#   * Adjust certs= to point to a gs:// directory containing <host>.crt and <host>.key,
#     or delete that metadata entry to disable serving with HTTPS.
#   * make newip-your-vm to get an IP address.
#   * make start-your-vm to start the VM.
#
# To ssh into a host (to debug):
#   * make ssh-your-vm
# 
# To restart a host:
#   * make stop-your-vm
#   * make start-your-vm

gce_zone=us-central1-a

# gs:// URL for Google Cloud Storage location of redirector binary.
gs_redirector=gs://rsc/go-import-redirector

# Build redirector for linux/amd64 and copy to Google Cloud Storage
install-redirector:
	GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -a -o go-import-redirector.linux .
	gsutil cp go-import-redirector.linux $(gs_redirector)

# Start VM for rsc.io. The VM name is rsc-io, as is the name for the IP address
# (acquired via 'make newip-rsc-io'). Using the debian-7 image is important
# because it has the startup-script support (Ubuntu does not).
# The f1-micro instance seems to be plenty of power for this use and costs ~$100/year.
# The gce-startup-script file is copied to the VM and runs at startup.
# It reads the three metadata variables at the end of the script, copies the
# redirector from the first one (redirector=) and then invokes it with the
# arguments given by the second and third (import= and repo=).
start-rsc-io:
	gcloud compute instances create rsc-io --address rsc-io \
		--zone=$(gce_zone) \
		--image debian-7 \
		--machine-type f1-micro \
		--metadata-from-file startup-script=gce-startup-script \
		--metadata redirector=$(gs_redirector),import=rsc.io/*,repo=https://github.com/rsc/*,letsencrypt=rsc@swtch.com \

# Same, but instance and address name is rsc-io-test. For testing.
start-rsc-io-test:
	gcloud compute instances create rsc-io-test --address rsc-io-test \
		--zone=$(gce_zone) \
		--image debian-7 \
		--machine-type f1-micro \
		--metadata-from-file startup-script=gce-startup-script \
		--metadata redirector=$(gs_redirector),import=test.rsc.io/*,repo=https://github.com/rsc/*,letsencrypt=rsc@swtch.com \

reset-%:
	gcloud compute instances reset $* --zone=$(gce_zone)

# Start VM for 9fans.net.
# The name is ninefans-net because Google Cloud resource names can't begin with digits.
# The redirector only handles 9fans.net/go/..., which means the rest of 9fans.net gets 404s.
# You'd want to put this behind some kind of reverse proxy or integrate into a larger server,
# but as of writing 9fans.net is otherwise down so this at least brings it back partially.
start-ninefans-net:
	gcloud compute instances create ninefans-net --address ninefans-net \
		--zone=$(gce_zone) \
		--image debian-7 \
		--metadata-from-file startup-script=gce-startup-script \
		--machine-type f1-micro \
		--metadata redirector=$(gs_redirector),import=9fans.net/go,repo=https://github.com/9fans/go,letsencrypt=rsc@swtch.com \

newip-%:
	gcloud compute addresses create $* --region=us-central1

stop-%:
	gcloud compute instances delete --zone=$(gce_zone) $*

unsafe-restart-%:
	GOOS=linux GOARCH=amd64 CGO_ENABLED=0 go build -a -o go-import-redirector.linux .
	gcloud beta compute scp --zone=$(gce_zone) go-import-redirector.linux $*:go-import-redirector.new
	gcloud compute ssh --zone=$(gce_zone) $* --command \
		"sudo bash -c \"rm -f /work/redirector && cp go-import-redirector.new /work/redirector && kill \\\$$(ps axwwu | egrep [.]/[r]edirector | awk '{print \\\$$2}')\" "

ssh-%:
	gcloud compute ssh --zone=$(gce_zone) $*

allow-http:
	gcloud compute firewall-rules create http --description "Incoming http allowed." --allow tcp:80 tcp:443