Run tests with podman in CI

This makes it possible to run the tests with podman which has the
benefit of requiring no daemon.

.gitlab-ci.yml

@@ -3,8 +3,7 @@ image: "archlinux:latest"
 
 test:
   script:
-    - pacman -Syu --needed --noconfirm docker make
-    - systemctl start docker
-    - make test-coverage
+    - pacman -Syu --needed --noconfirm podman make
+    - make test DOCKER=podman
   tags:
     - vm

Makefile

 IMAGE:=dbscripts/test
 RUN_OPTIONS:=--rm --network=none -v $(PWD):/dbscripts:ro --tmpfs=/tmp:exec -w /dbscripts/test
 CASES ?= cases
+DOCKER ?= docker
 
 test-image:
-	docker build --pull -t $(IMAGE) test
+	$(DOCKER) build --pull -t $(IMAGE) test
 
 test: test-image
-	docker run $(RUN_OPTIONS) $(IMAGE) make CASES=$(CASES) test
+	$(DOCKER) run $(RUN_OPTIONS) $(IMAGE) make CASES=$(CASES) test
 
 test-coverage: test-image
 	rm -rf ${PWD}/coverage
 	mkdir -m 777 ${PWD}/coverage
-	docker run  $(RUN_OPTIONS) -v ${PWD}/coverage:/coverage -e COVERAGE_DIR=/coverage $(IMAGE) make test-coverage
+	$(DOCKER) run  $(RUN_OPTIONS) -v ${PWD}/coverage:/coverage -e COVERAGE_DIR=/coverage $(IMAGE) make test-coverage
 
 .PHONY: test-image test test-coverage

README.md

@@ -55,7 +55,10 @@ Things that haven't been mentioned yet:
  - `cron-jobs/devlist-mailer`
  - `cron-jobs/sourceballs`
 ## Testing
-* Install the `make` and `docker` packages. Start the docker daemon by issuing `systemctl start docker`.
+* Install the `make` and `podman` or `docker` packages depending on your
+preferrence. The default expects docker but pomdan can be used if
+`DOCKER=podman` is specified. When using docker, start the docker daemon by
+issuing `systemctl start docker`.
 * The test suite can now be run with `make test`.
 * A coverage report can be generated with `make test-coverage`. Open `coverage/index.html` in your web browser to inspect the results.