only attempt to build images when needed

Signed-off-by: Jens Langhammer <jens@goauthentik.io>

Makefile

@@ -255,7 +255,7 @@ docker:  ## Build a docker image of the current source tree
 	DOCKER_BUILDKIT=1 docker build . --progress plain --tag ${DOCKER_IMAGE}
 
 test-docker:
-	./scripts/test_docker.sh
+	BUILD=true ./scripts/test_docker.sh
 
 #########################
 ## CI

scripts/test_docker.sh

@@ -12,17 +12,21 @@ fi
 
 echo PG_PASS="$(openssl rand -base64 36 | tr -d '\n')" >.env
 echo AUTHENTIK_SECRET_KEY="$(openssl rand -base64 60 | tr -d '\n')" >>.env
-echo AUTHENTIK_IMAGE="${AUTHENTIK_IMAGE}" >>.env
-echo AUTHENTIK_TAG="${AUTHENTIK_TAG}" >>.env
 export COMPOSE_PROJECT_NAME="authentik-test-${AUTHENTIK_TAG}"
 
-# Ensure buildx is installed
-docker buildx install
-# For release builds we have an empty client here as we use the NPM package
-mkdir -p ./gen-ts-api
-touch .env
+if [[ -v BUILD ]]; then
+    echo AUTHENTIK_IMAGE="${AUTHENTIK_IMAGE}" >>.env
+    echo AUTHENTIK_TAG="${AUTHENTIK_TAG}" >>.env
+
+    # Ensure buildx is installed
+    docker buildx install
+    # For release builds we have an empty client here as we use the NPM package
+    mkdir -p ./gen-ts-api
+    touch .env
+
+    docker build -t "${AUTHENTIK_IMAGE}:${AUTHENTIK_TAG}" .
+fi
 
-docker build -t "${AUTHENTIK_IMAGE}:${AUTHENTIK_TAG}" .
 docker compose up --no-start
 docker compose start postgresql redis
 docker compose run -u root server test-all