Makefile

$(if $(filter oneshell,${.FEATURES}),,$(error make must support .ONESHELL))
.ONESHELL:
SHELL := /bin/bash

SECRETS_DIR ?= $(HOME)/.docker-secrets
SECRETS := $(SECRETS_DIR)/lexicon.env

.PHONY: all
all: build next-steps

.PHONY: build
build:
	docker-compose build $(SERVICES)

.PHONY: clean
clean:
	docker-compose down --rmi all
	docker builder prune --force

.PHONY: push
push: build
	docker-compose push $(SERVICES)

.PHONY: pull
pull:
	docker-compose pull $(SERVICES)

.PHONY: deploy
deploy: pull config stack-deploy

.PHONY: stack-deploy
stack-deploy:
	source .env > /dev/null
	export FQDN PYMAP_HOST SLIMTA_HOST MX_HOSTS ALTS
	docker stack deploy --with-registry-auth \
		-c docker-compose.yml \
		$(shell test -f docker-compose.override.yml && echo "-c docker-compose.override.yml" || :) \
		slimta-docker

.PHONY: next-steps
next-steps:
	$(warning )
	$(warning To run the app with docker-compose:)
	$(warning $$ docker-compose up -d     # start the app)
	$(warning $$ docker-compose logs -f   # tail the logs)
	$(warning $$ docker-compose down      # stop the app)
	$(warning )
	$(warning See:)
	$(warning - https://github.com/slimta/slimta-docker/blob/master/README.md)
	$(warning - https://docs.docker.com/compose/reference/)

.PHONY: config
config: .env $(SECRETS_DIR) $(SECRETS)

.env:
	echo "Note: templates may be used  for all input in accordance with:"
	echo "	https://docs.docker.com/engine/reference/commandline/service_create/#create-services-using-templates"
	echo
	echo "Enter the fully-qualified domain name of this server, e.g. 'mail.example.com':"
	default=$$(hostname -f)
	read -p "FQDN [$$default]: " fqdn
	fqdn="$${fqdn:-$$default}"
	echo
	echo "Enter the external hostname that will be used for IMAP access, e.g. 'imap.example.com':"
	read -p "IMAP access [$$fqdn]: " imap
	imap="$${imap:-$$fqdn}"
	echo
	echo "Enter the external hostname that will be used for SMTP submission if any, e.g. 'smtp.example.com':"
	read -p "SMTP submission []: " smtp
	echo
	echo "Enter all external hostnames that will be used for MX relaying if any, e.g. 'mx1.example.com mx2.example.com':"
	read -p "Alternate hostnames []: " mx
	echo
	echo "Enter any other alternate hostnames in use if any."
	read -p "Other hostnames []: " alts
	echo -en "FQDN='$$fqdn'\nPYMAP_HOST='$$imap'\nSLIMTA_HOST='$$smtp'\nMX_HOSTS='$$mx'\nALTS='$$alts'\n" > $@

$(SECRETS_DIR):
	mkdir -p $@
	chmod og-rwx $@

$(SECRETS_DIR)/lexicon.env:
	echo
	echo "Enter your DNS provider information, for automated Let's Encrypt certificates:"
	echo
	read -p "DNS provider: " provider
	read -p "Username: " username
	stty -echo
	read -p "Token: " token
	stty echo
	echo
	provider_up=$$(echo $$provider | tr "[a-z]" "[A-Z]")
	echo -en "export PROVIDER='$$provider'\nexport LEXICON_$${provider_up}_USERNAME='$$username'\nexport LEXICON_$${provider_up}_TOKEN='$$token'\n" > $@