make: implement DEBUG_MODE to ease ansible debugging

Signed-off-by: Tomas Tomecek <ttomecek@redhat.com>

Makefile

@@ -4,6 +4,11 @@ DISTRO := fedora-27-x86_64
 VARIANT := upstream
 DG_BINARY ?= dg
 DG_EXEC = $(DG_BINARY) --max-passes 25 --spec specs/common.yml --multispec specs/multispec.yaml --distro $(DISTRO).yaml --multispec-selector variant=$(VARIANT)
+# set to 1 to enable debugging
+DEBUG_MODE ?= 0
+ifeq ($(DEBUG_MODE), 1)
+	ANSIBLE_EXTRA_ARGS := -vv
+endif
 
 REPOSITORY = $(shell ${DG_EXEC} --template={{spec.repository}})
 
@@ -51,10 +56,10 @@ enumerate-tools:
 check: test
 
 test: build
-	make -C tests/ check-local IMAGE_NAME=$(REPOSITORY)
+	make -C tests/ check-local IMAGE_NAME=$(REPOSITORY) ANSIBLE_EXTRA_ARGS=$(ANSIBLE_EXTRA_ARGS)
 
 check-in-vm: build
-	make -C tests/ check-in-vm IMAGE_NAME=$(REPOSITORY)
+	make -C tests/ check-in-vm IMAGE_NAME=$(REPOSITORY) ANSIBLE_EXTRA_ARGS=$(ANSIBLE_EXTRA_ARGS)
 
 clean:
 	rm Dockerfile || :

tests/Makefile

@@ -4,12 +4,13 @@ IMAGE_NAME := ""
 VM_IMAGE_NAME := Fedora-Cloud-Base-27-1.6.x86_64.qcow2
 VM_IMAGE_PATH = ../$(VM_IMAGE_NAME)
 INVENTORY := /usr/share/ansible/inventory/standard-inventory-qcow2
+ANSIBLE_EXTRA_ARGS ?=
 
 check-local:
-	ansible-playbook -e subject=$(IMAGE_NAME) ./local.yml
+	ansible-playbook $(ANSIBLE_EXTRA_ARGS) -e subject=$(IMAGE_NAME) ./local.yml
 
 check-in-vm: $(VM_IMAGE_PATH)
-	TEST_SUBJECTS=$(VM_IMAGE_PATH) ansible-playbook -e ansible_python_interpreter=/usr/bin/python3 -e subject=$(IMAGE_NAME) -i $(INVENTORY) -e setup=true -e vm_image=$(VM_IMAGE) ./in-vm.yml
+	TEST_SUBJECTS=$(VM_IMAGE_PATH) ansible-playbook $(ANSIBLE_EXTRA_ARGS) -e ansible_python_interpreter=/usr/bin/python3 -e subject=$(IMAGE_NAME) -i $(INVENTORY) -e setup=true -e vm_image=$(VM_IMAGE) ./in-vm.yml
 
 $(VM_IMAGE_PATH):
 	curl -o $(VM_IMAGE_PATH) -s https://download.fedoraproject.org/fedora/releases/27/CloudImages/x86_64/images/$(VM_IMAGE_NAME)