TESTS: add tests for using nginx and docker-gen in separated containers

test2/test.sh

@@ -18,7 +18,7 @@ docker build -t nginx-proxy-tester -f $DIR/requirements/Dockerfile-nginx-proxy-t
 # run the nginx-proxy-tester container setting the correct value for the working dir in order for 
 # docker-compose to work properly when run from within that container.
 exec docker run --rm -it \
-	-v ${DIR}:/${DIR}:ro \
+	-v ${DIR}:/${DIR} \
 	-w ${DIR} \
 	-v /var/run/docker.sock:/var/run/docker.sock \
 	nginx-proxy-tester ${ARGS}

test2/test_dockergen/.gitignore

@@ -0,0 +1 @@
+nginx.tmpl

test2/test_dockergen/test_dockergen_v2.py

@@ -0,0 +1,38 @@
+import os
+import docker
+import logging
+import pytest
+
+
+@pytest.yield_fixture(scope="module")
+def nginx_tmpl():
+	"""
+	pytest fixture which extracts the the nginx config template from
+	the jwilder/nginx-proxy:test image
+	"""
+	script_dir = os.path.dirname(__file__)
+	logging.info("extracting nginx.tmpl from jwilder/nginx-proxy:test")
+	docker_client = docker.from_env()
+	print(docker_client.containers.run(
+		image='jwilder/nginx-proxy:test',
+		remove=True,
+		volumes=['{current_dir}:{current_dir}'.format(current_dir=script_dir)],
+		entrypoint='sh',
+		command='-xc "cp /app/nginx.tmpl {current_dir} && chmod 777 {current_dir}/nginx.tmpl"'.format(current_dir=script_dir),
+		stderr=True))
+	yield
+	logging.info("removing nginx.tmpl")
+	os.remove(os.path.join(script_dir, "nginx.tmpl"))
+
+
+def test_unknown_virtual_host_is_503(nginx_tmpl, docker_compose, nginxproxy):
+    r = nginxproxy.get("http://unknown.nginx.container.docker/")
+    assert r.status_code == 503
+
+
+def test_forwards_to_whoami(nginx_tmpl, docker_compose, nginxproxy):
+    r = nginxproxy.get("http://whoami.nginx.container.docker/")
+    assert r.status_code == 200
+    whoami_container = docker_compose.containers.get("whoami")
+    assert r.text == "I'm %s\n" % whoami_container.id[:12]
+

test2/test_dockergen/test_dockergen_v2.yml

@@ -0,0 +1,23 @@
+version: '2'
+
+services:
+  nginx:
+    image: nginx
+    container_name: nginx
+    volumes:
+      - /etc/nginx/conf.d
+
+  dockergen:
+    image: jwilder/docker-gen
+    command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
+    volumes_from:
+      - nginx
+    volumes:
+      - /var/run/docker.sock:/tmp/docker.sock:ro
+      - ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl
+
+  whoami:
+    image: jwilder/whoami
+    container_name: whoami
+    environment:
+      - VIRTUAL_HOST=whoami.nginx.container.docker

test2/test_dockergen/test_dockergen_v3.py

@@ -0,0 +1,46 @@
+import os
+import docker
+import logging
+import pytest
+
+
+def versiontuple(v):
+    return tuple(map(int, (v.split("."))))
+
+docker_version = docker.from_env().version()['Version']
+pytestmark = pytest.mark.skipif(versiontuple(docker_version) < versiontuple('1.13'),
+	reason="Docker compose syntax v3 requires docker engine v1.13")
+
+
+@pytest.yield_fixture(scope="module")
+def nginx_tmpl():
+	"""
+	pytest fixture which extracts the the nginx config template from
+	the jwilder/nginx-proxy:test image
+	"""
+	script_dir = os.path.dirname(__file__)
+	logging.info("extracting nginx.tmpl from jwilder/nginx-proxy:test")
+	docker_client = docker.from_env()
+	print(docker_client.containers.run(
+		image='jwilder/nginx-proxy:test',
+		remove=True,
+		volumes=['{current_dir}:{current_dir}'.format(current_dir=script_dir)],
+		entrypoint='sh',
+		command='-xc "cp /app/nginx.tmpl {current_dir} && chmod 777 {current_dir}/nginx.tmpl"'.format(current_dir=script_dir),
+		stderr=True))
+	yield
+	logging.info("removing nginx.tmpl")
+	os.remove(os.path.join(script_dir, "nginx.tmpl"))
+
+
+def test_unknown_virtual_host_is_503(nginx_tmpl, docker_compose, nginxproxy):
+    r = nginxproxy.get("http://unknown.nginx.container.docker/")
+    assert r.status_code == 503
+
+
+def test_forwards_to_whoami(nginx_tmpl, docker_compose, nginxproxy):
+    r = nginxproxy.get("http://whoami.nginx.container.docker/")
+    assert r.status_code == 200
+    whoami_container = docker_compose.containers.get("whoami")
+    assert r.text == "I'm %s\n" % whoami_container.id[:12]
+

test2/test_dockergen/test_dockergen_v3.yml

@@ -0,0 +1,24 @@
+version: '3'
+services:
+  nginx:
+    image: nginx
+    container_name: nginx
+    volumes:
+      - nginx_conf:/etc/nginx/conf.d
+
+  dockergen:
+    image: jwilder/docker-gen
+    command: -notify-sighup nginx -watch /etc/docker-gen/templates/nginx.tmpl /etc/nginx/conf.d/default.conf
+    volumes:
+      - /var/run/docker.sock:/tmp/docker.sock:ro
+      - ./nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl
+      - nginx_conf:/etc/nginx/conf.d
+
+  whoami:
+    image: jwilder/whoami
+    container_name: whoami
+    environment:
+      - VIRTUAL_HOST=whoami.nginx.container.docker
+
+volumes:
+  nginx_conf: {}