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nginx-proxy/test/test_ssl/test_dhparam_generation.py

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2017-03-07 20:04:37 +01:00
import pytest
import os
import docker
import time
docker_client = docker.from_env()
def wait_for_nginxproxy_to_be_ready():
"""
If one (and only one) container started from image jwilder/nginx-proxy:test is found,
wait for its log to contain substring "Watching docker events"
"""
containers = docker_client.containers.list(filters={"ancestor": "jwilder/nginx-proxy:test"})
if len(containers) != 1:
return
container = containers[0]
for line in container.logs(stream=True):
if "Watching docker events" in line:
break
def test_dhparam_is_generated_if_missing(docker_compose, nginxproxy):
wait_for_nginxproxy_to_be_ready()
containers = docker_client.containers.list(filters={"ancestor": "jwilder/nginx-proxy:test"})
if len(containers) != 1:
assert 0
return
sut_container = containers[0]
docker_logs = sut_container.logs(stdout=True, stderr=True, stream=False, follow=False)
assert "Generating DH parameters" in docker_logs
expected_line = "dhparam generation complete, reloading nginx"
max_wait = 30
sleep_interval = 2
current_wait = 0
while current_wait < max_wait:
docker_logs = sut_container.logs(stdout=True, stderr=True, stream=False, follow=False)
if expected_line in docker_logs:
break
time.sleep(sleep_interval)
current_wait += sleep_interval
# Re-check the logs to get better assert output on failure
assert expected_line in docker_logs
# Make sure the dhparam in use is not the default, pre-generated one
default_checksum = sut_container.exec_run("md5sum /app/dhparam.pem.default").split()
generated_checksum = sut_container.exec_run("md5sum /etc/nginx/dhparam/dhparam.pem").split()
assert default_checksum[0] != generated_checksum[0]