WD=/var/lib/dags/acme_rsync

.PHONY: all refresh_pg sync_certs

NGINX_RELOAD=$(WD)/nginx_reload
PROSODY_RELOAD=$(WD)/prosody_reload

all: sync_certs $(NGINX_RELOAD) $(PROSODY_RELOAD) refresh_pg

###############################################################################

ACME_DIR=/srv/certs/acme
DOMAIN=monotremata.xyz
CERT_PATH=$(ACME_DIR)/$(DOMAIN)
FULLCHAIN=$(CERT_PATH)/fullchain.cer
CERT=$(CERT_PATH)/$(DOMAIN).cer
KEY=$(CERT_PATH)/$(DOMAIN).key

###############################################################################
# Sync the certificates using rsync. Because `sync` is a phony
# target, it will be run each time, but the certificate files will only be
# updated if a renewal happens

$(FULLCHAIN): sync_certs
$(CERT): sync_certs
$(KEY): sync_certs

RSYNCD_HOST=10.0.24.106
RSYNCD_USER=user
RSYNCD_PASSWORD=/srv/secrets/rsyncd_password

REMOTE_ACME_PATH=rsync://$(RSYNCD_USER)@$(RSYNCD_HOST)/acme
RSYNC_OPTS=--archive --delete --acls --xattrs --compress --verbose --human-readable

sync_certs:
	mkdir -p $(ACME_DIR)
	@echo "running rsync"
	rsync \
		--password-file $(RSYNCD_PASSWORD) \
		$(RSYNC_OPTS) \
		$(REMOTE_ACME_PATH) \
		$(ACME_DIR)

###############################################################################
# Reload the nginx instance running on my reverse proxy docker-compose service
# so that it uses the new certificates.
# The target is just an empty sentinel target with no meaningful data other
# than its modification date.
# So far, the nginx instance running on the `monotremata` certificates, so it
# only needs to be reloaded that is updated

NGINX_COMPOSE_FILE=/srv/services/www/docker-compose.yml

$(NGINX_RELOAD): $(FULLCHAIN) $(KEY)
	mkdir -p $(@D)
	docker-compose \
		--file $(NGINX_COMPOSE_FILE) \
		exec nginx \
		nginx -s reload
	touch $@

###############################################################################

PROSODY_CERTS_PATH=/srv/volumes/xmpp/certs

PROSODY_CERT=$(PROSODY_CERTS_PATH)/monotremata.xyz.crt
PROSODY_KEY=$(PROSODY_CERTS_PATH)/monotremata.xyz.key

PROSODY_UID=101
PROSODY_GID=102

$(PROSODY_CERT): $(FULLCHAIN)
	install -o $(PROSODY_UID) -g $(PROSODY_GID) -m 644 $< $@

$(PROSODY_KEY): $(KEY)
	install -o $(PROSODY_UID) -g $(PROSODY_GID) -m 600 $< $@

PROSODY_COMPOSE_FILE=/srv/services/xmpp/docker-compose.yml

$(PROSODY_RELOAD): $(PROSODY_CERT) $(PROSODY_KEY)
	mkdir -p $(@D)
	docker-compose --file $(PROSODY_COMPOSE_FILE) exec \
		prosody prosodyctl reload
	touch $@

###############################################################################
# Copy the certificate for the postgresql domain to the folder where postgre
# service expects it

PG_SSL_PATH=/srv/volumes/postgres/ssl
PG_CERT=$(PG_SSL_PATH)/server.crt
PG_KEY=$(PG_SSL_PATH)/server.key

$(PG_CERT): $(CERT)
	mkdir -p $(@D)
	rsync --copy-links $< $@

$(PG_KEY): $(KEY)
	mkdir -p $(@D)
	rsync --copy-links $< $@

refresh_pg: $(PG_CERT) $(PG_KEY)