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# Simple Makefile to build base VM images using packer and ansible
# TODO
# * support ssh as user instead of root
# * testing target
PACKER = packer
ANSIBLE_DIR = ansible-roles
# check which hypervisors are available
ifndef BUILDER
ifeq ($(shell which qemu-system-$(shell uname -m | sed 's/i686/i386/') 2>&1 > /dev/null && echo $$?), 0)
AVAILABLE_BUILDERS += qemu
endif
ifeq ($(shell which virtualbox 2>&1 > /dev/null && echo $$?), 0)
AVAILABLE_BUILDERS += virtualbox-iso
endif
ifeq ($(shell which vmplayer 2>&1 > /dev/null && echo $$?), 0)
AVAILABLE_BUILDERS += vmware-iso
endif
BUILDER := $(firstword $(AVAILABLE_BUILDERS))
endif
##
# Templates and flavors detection
##
# The packer templates, detected as *.json (excluding base.json)
TEMPLATES := $(basename $(filter-out base.json,$(wildcard *.json)))
# The provisioning flavors, detected as ansible-roles/setup-<flavor>.yml
FLAVORS := $(patsubst $(ANSIBLE_DIR)/setup-%.yml,%, $(wildcard $(ANSIBLE_DIR)/setup-*.yml))
BASETARGETS := $(foreach template, $(TEMPLATES), $(template)/base)
PROVTARGETS := $(foreach template, $(TEMPLATES), $(foreach flavor, $(FLAVORS), $(template)/$(flavor)))
BOOTTARGETS := $(foreach template, $(TEMPLATES), $(template)/base/boot)
BOOTTARGETS += $(foreach prov, $(PROVTARGETS), $(prov)/boot)
PACKER_OPTS := -var-file=base.json
ifdef DEBUG
VERBOSE := 1
PACKER_OPTS += -debug
PACKER_OPTS += -var='headless=false'
endif
TIMESTAMP := $(shell date "+%Y-%m-%d_%H-%M-%S")
check_rootpw = $(if $(strip $(ROOTPW)),,$(error No root password is set, set it as ROOTPW in your environment.))
ifdef VERBOSE
$(info root password: $(ROOTPW))
$(info )
$(info packer: executable: $(PACKER))
$(info packer: options: $(PACKER_OPTS))
$(info )
$(info ansible: directory: $(ANSIBLE_DIR))
$(info )
$(info builder: available: $(AVAILABLE_BUILDERS))
$(info builder: chosen: $(BUILDER))
$(info )
$(info targets: base: $(strip $(BASETARGETS)))
$(info targets: boot: $(strip $(BOOTTARGETS)))
$(info targets: provision: $(strip $(PROVTARGETS)))
$(info )
endif
.PHONY: help clean
help:
##
# Creating base images
##
$(BASETARGETS):
$(call check_rootpw)
$(info ** Building template '$(@D)' using '$(BUILDER)' **)
$(PACKER) build -only=$(BUILDER) \
$(PACKER_OPTS) \
-var='vm_name=rootfs-image' \
-var='output_directory=$(@D)/base' \
$(@D).json
##
# Provisioning images
##
# This should still only use base images
$(PROVTARGETS):
$(foreach flav, $(FLAVORS), %/$(flav)): %/base
$(call check_rootpw)
$(eval BUILD_DIR := $(@D)/$(@F).$(TIMESTAMP))
$(info ** Provisioning '$(@D)' with '$(@F)' **)
@mkdir -p $(BUILD_DIR)
@cp -r $(ANSIBLE_DIR) $(BUILD_DIR)/$(ANSIBLE_DIR)
$(PACKER) build -only=$(BUILDER) \
$(PACKER_OPTS) \
-var='vm_name=rootfs-image' \
-var='output_directory=$(BUILD_DIR)/build' \
-var='base_image=$(@D)/base/rootfs-image' \
-var='playbook=setup-$(@F).yml' \
$(BUILD_DIR)/$(ANSIBLE_DIR)/run-playbook-only.json
##
# Generating boot files
##
# This should use provisioned image
$(BOOTTARGETS):
%/boot: %
$(call check_rootpw)
$(eval BUILD_DIR := $(@D).$(TIMESTAMP))
$(info ** Generating boot files for '$(BUILD_DIR)')
$(PACKER) build -only=$(BUILDER) \
$(PACKER_OPTS) \
-var='vm_name=rootfs-image.tmp' \
-var='output_directory=$(BUILD_DIR)/build/tmp' \
-var='base_image=$(BUILD_DIR)/build/rootfs-image' \
-var='playbook=build-dracut-initramfs.yml' \
$(BUILD_DIR)/$(ANSIBLE_DIR)/run-playbook-only.json
@mv $(BUILD_DIR)/$(ANSIBLE_DIR)/boot_files $(BUILD_DIR)/build/boot
help:
@printf "Usage:\n\tmake <template>/<flavor>[/boot]\n"
@echo
@echo "Base images targets:"
@for T in $(BASETARGETS); do printf "\t%s\n" "$$T"; done
@echo
@echo "Provisioning images targets: "
@for P in $(PROVTARGETS); do printf "\t%s\n" "$$P"; done
@echo
@echo "Generate boot files targets:"
@printf "\t<{base,provisioning}_target>/boot\n"
# The builds are directories named after the template name
clean:
-$(foreach build_dir,$(TEMPLATES),test -d $(build_dir) && rm -rf $(build_dir);)
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