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nginx-proxy/test/docker.bats
Pit Kleyersburg 86aea653c8 Update to docker-gen 0.7.0
Since [1] some timings seem to have changed. This caused the unit tests
to fail intermittently, from my testings especially on Ubuntu systems
(much less often on e.g. Arch).

This commit adds the `dockergen_wait_for_event` helper-function to try
and wait for the configuration to be generated by docker-gen before
continuing on with the actual tests themselves.

Additionally, at the end of every test file, all containers spun up by
the bats-tests will be stopped. This required adding the `bats-type`
label to every container started during the bats-tests.

The stopping of the containers reduces the amount of events docker-gen
has to process, thus resulting in lower wait times for the generation to
happen.

[1]: 50435652b1
2016-03-23 17:45:34 +01:00

124 lines
3.6 KiB
Bash

#!/usr/bin/env bats
load test_helpers
@test "[$TEST_FILE] start 2 web containers" {
prepare_web_container bats-web1 81 -e VIRTUAL_HOST=web1.bats
prepare_web_container bats-web2 82 -e VIRTUAL_HOST=web2.bats
}
@test "[$TEST_FILE] -v /var/run/docker.sock:/tmp/docker.sock:ro" {
SUT_CONTAINER=bats-nginx-proxy-${TEST_FILE}-1
# WHEN nginx-proxy runs on our docker host using the default unix socket
run nginxproxy $SUT_CONTAINER -v /var/run/docker.sock:/tmp/docker.sock:ro
assert_success
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
# THEN
assert_nginxproxy_behaves $SUT_CONTAINER
}
@test "[$TEST_FILE] -v /var/run/docker.sock:/f00.sock:ro -e DOCKER_HOST=unix:///f00.sock" {
SUT_CONTAINER=bats-nginx-proxy-${TEST_FILE}-2
# WHEN nginx-proxy runs on our docker host using a custom unix socket
run nginxproxy $SUT_CONTAINER -v /var/run/docker.sock:/f00.sock:ro -e DOCKER_HOST=unix:///f00.sock
assert_success
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
# THEN
assert_nginxproxy_behaves $SUT_CONTAINER
}
@test "[$TEST_FILE] -e DOCKER_HOST=tcp://..." {
SUT_CONTAINER=bats-nginx-proxy-${TEST_FILE}-3
# GIVEN a container exposing our docker host over TCP
run docker_tcp bats-docker-tcp
assert_success
sleep 1s
# WHEN nginx-proxy runs on our docker host using tcp to connect to our docker host
run nginxproxy $SUT_CONTAINER -e DOCKER_HOST="tcp://bats-docker-tcp:2375" --link bats-docker-tcp:bats-docker-tcp
assert_success
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
# THEN
assert_nginxproxy_behaves $SUT_CONTAINER
}
@test "[$TEST_FILE] separated containers (nginx + docker-gen + nginx.tmpl)" {
docker_clean bats-nginx
docker_clean bats-docker-gen
# GIVEN a simple nginx container
run docker run -d \
--label bats-type="nginx" \
--name bats-nginx \
-v /etc/nginx/conf.d/ \
-v /etc/nginx/certs/ \
nginx:latest
assert_success
run retry 5 1s docker run --label bats-type="curl" appropriate/curl --silent --fail --head http://$(docker_ip bats-nginx)/
assert_output -l 0 $'HTTP/1.1 200 OK\r'
# WHEN docker-gen runs on our docker host
run docker run -d \
--label bats-type="docker-gen" \
--name bats-docker-gen \
-v /var/run/docker.sock:/tmp/docker.sock:ro \
-v $BATS_TEST_DIRNAME/../nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl:ro \
--volumes-from bats-nginx \
jwilder/docker-gen:0.7.0 \
-notify-sighup bats-nginx \
-watch \
-only-exposed \
/etc/docker-gen/templates/nginx.tmpl \
/etc/nginx/conf.d/default.conf
assert_success
docker_wait_for_log bats-docker-gen 9 "Watching docker events"
# Give some time to the docker-gen container to notify bats-nginx so it
# reloads its config
sleep 2s
run docker_running_state bats-nginx
assert_output "true" || {
docker logs bats-docker-gen
false
} >&2
# THEN
assert_nginxproxy_behaves bats-nginx
}
@test "[$TEST_FILE] stop all bats containers" {
stop_bats_containers
}
# $1 nginx-proxy container
function assert_nginxproxy_behaves {
local -r container=$1
# Querying the proxy without Host header → 503
run curl_container $container / --head
assert_output -l 0 $'HTTP/1.1 503 Service Temporarily Unavailable\r'
# Querying the proxy with Host header → 200
run curl_container $container /data --header "Host: web1.bats"
assert_output "answer from port 81"
run curl_container $container /data --header "Host: web2.bats"
assert_output "answer from port 82"
# Querying the proxy with unknown Host header → 503
run curl_container $container /data --header "Host: webFOO.bats" --head
assert_output -l 0 $'HTTP/1.1 503 Service Temporarily Unavailable\r'
}