deployer prototype (tired of cfengine :))

deployer

#!/usr/bin/make -rf

SELF := $(shell hostname -s)

.NOTPARALLEL:
.ONESHELL:
SHELL := /bin/sh
.SHELLFLAGS := -e
.PHONY: UPDATE_SOURCES ALL $(PACKAGES)

#PACKAGES := nginx-full apache2-utils
PACKAGES := nginx-full
CONFIGS := /etc/foo.config

ALL: $(PACKAGES) $(CONFIGS)

$(PACKAGES): | UPDATE_SOURCES
	dpkg -l | awk -v pkg=$@ \
		'$$1=="ii"&&$$2==pkg{fnd=1;exit 0}END{if(!fnd)exit 1}' || \
	apt-get -f -y install $@

UPDATE_SOURCES:
	echo running apt-get -q update

# consider /etc/foo.config as a conffile for nginx

ifeq "$(SELF)" "myhostname"
/etc/foo.config: $(PWD)/foo.template $(PWD)/foo.var.$(SELF) | nginx-full
	echo $(SELF)
	test -e $@ || :>$@
	chmod 0640 $@
	chown artyom:artyom $@
	set -a ; . $(PWD)/foo.var.$(SELF) ; envsubst < $< > $@
endif

# these ones' are for illustration purposes only,
# normally you should create them with text editor

$(PWD)/foo.template:
	printf 'FOO is $$FOO,\nBAR is $$BAR\n' > $@

$(PWD)/foo.variables:
	echo FOO=\'Foo_value\' > $@
	echo BAR=\'bar value\' >> $@