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Merge pull request #396 from pitkley/docker-gen-0.7.0

Browse Source 
Update to docker-gen 0.7.0
This commit is contained in:
Jason Wilder 2016-03-23 11:33:00 -06:00
commit 6adc04be83
9 changed files with 95 additions and 32 deletions
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2
Dockerfile
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@ -17,7 +17,7 @@ RUN echo "daemon off;" >> /etc/nginx/nginx.conf \
RUN wget -P /usr/local/bin https://godist.herokuapp.com/projects/ddollar/forego/releases/current/linux-amd64/forego \
&& chmod u+x /usr/local/bin/forego
ENV DOCKER_GEN_VERSION 0.4.2
ENV DOCKER_GEN_VERSION 0.7.0
RUN wget https://github.com/jwilder/docker-gen/releases/download/$DOCKER_GEN_VERSION/docker-gen-linux-amd64-$DOCKER_GEN_VERSION.tar.gz \
&& tar -C /usr/local/bin -xvzf docker-gen-linux-amd64-$DOCKER_GEN_VERSION.tar.gz \

4
Makefile
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@ -2,8 +2,8 @@
.PHONY : test
update-dependencies:
docker pull jwilder/docker-gen:latest
docker pull nginx:latest
docker pull jwilder/docker-gen:0.7.0
docker pull nginx:1.9.12
docker pull python:3
docker pull rancher/socat-docker:latest
docker pull appropriate/curl:latest

11
test/default-host.bats
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@ -4,10 +4,7 @@ load test_helpers
function setup {
# make sure to stop any web container before each test so we don't
# have any unexpected contaiener running with VIRTUAL_HOST or VIRUTAL_PORT set
CIDS=( $(docker ps -q --filter "label=bats-type=web") )
if [ ${#CIDS[@]} -gt 0 ]; then
docker stop ${CIDS[@]} >&2
fi
stop_bats_containers web
}
@ -20,7 +17,7 @@ function setup {
# WHEN nginx-proxy runs with DEFAULT_HOST set to web.bats
run nginxproxy $SUT_CONTAINER -v /var/run/docker.sock:/tmp/docker.sock:ro -e DEFAULT_HOST=web.bats
assert_success
docker_wait_for_log $SUT_CONTAINER 3 "Watching docker events"
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
# THEN querying the proxy without Host header → 200
run curl_container $SUT_CONTAINER / --head
@ -30,3 +27,7 @@ function setup {
run curl_container $SUT_CONTAINER / --head --header "Host: something.I.just.made.up"
assert_output -l 0 $'HTTP/1.1 200 OK\r'
}
@test "[$TEST_FILE] stop all bats containers" {
stop_bats_containers
}

18
test/docker.bats
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@ -14,7 +14,7 @@ load test_helpers
# 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 3 "Watching docker events"
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
# THEN
assert_nginxproxy_behaves $SUT_CONTAINER
@ -27,7 +27,7 @@ load test_helpers
# 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 3 "Watching docker events"
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
# THEN
assert_nginxproxy_behaves $SUT_CONTAINER
@ -44,7 +44,7 @@ load test_helpers
# 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 3 "Watching docker events"
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
# THEN
assert_nginxproxy_behaves $SUT_CONTAINER
@ -57,28 +57,30 @@ load test_helpers
# GIVEN a simple nginx container
run docker run -d \
--label bats-type="nginx" \
--name bats-nginx \
-v /etc/nginx/conf.d/ \
-v /etc/nginx/certs/ \
nginx:latest
assert_success
run retry 5 1s docker run appropriate/curl --silent --fail --head http://$(docker_ip bats-nginx)/
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 $BATS_TEST_DIRNAME/../nginx.tmpl:/etc/docker-gen/templates/nginx.tmpl:ro \
--volumes-from bats-nginx \
jwilder/docker-gen:latest \
jwilder/docker-gen:0.7.0 \
-notify-sighup bats-nginx \
-watch \
-only-exposed \
/etc/docker-gen/templates/nginx.tmpl \
/etc/nginx/conf.d/default.conf
assert_success
docker_wait_for_log bats-docker-gen 6 "Watching docker events"
docker_wait_for_log bats-docker-gen 9 "Watching docker events"
# Give some time to the docker-gen container to notify bats-nginx so it
# reloads its config
@ -94,6 +96,10 @@ load test_helpers
assert_nginxproxy_behaves bats-nginx
}
@test "[$TEST_FILE] stop all bats containers" {
stop_bats_containers
}
# $1 nginx-proxy container
function assert_nginxproxy_behaves {

8
test/lib/docker_helpers.bash
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@ -13,6 +13,11 @@ function docker_ip {
docker inspect --format '{{ .NetworkSettings.IPAddress }}' $1
}
# get the ip of docker container $1
function docker_id {
docker inspect --format '{{ .ID }}' $1
}
# get the running state of container $1
# → true/false
# fails if the container does not exist
@ -52,9 +57,10 @@ function docker_tcp {
local container_name="$1"
docker_clean $container_name
docker run -d \
--label bats-type="socat" \
--name $container_name \
--expose 2375 \
-v /var/run/docker.sock:/var/run/docker.sock \
rancher/socat-docker
docker run --link "$container_name:docker" docker:1.9 version
docker run --label bats-type="docker" --link "$container_name:docker" docker:1.9 version
}

13
test/multiple-hosts.bats
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@ -5,22 +5,21 @@ SUT_CONTAINER=bats-nginx-proxy-${TEST_FILE}
function setup {
# make sure to stop any web container before each test so we don't
# have any unexpected contaiener running with VIRTUAL_HOST or VIRUTAL_PORT set
CIDS=( $(docker ps -q --filter "label=bats-type=web") )
if [ ${#CIDS[@]} -gt 0 ]; then
docker stop ${CIDS[@]} >&2
fi
stop_bats_containers web
}
@test "[$TEST_FILE] start a nginx-proxy container" {
run nginxproxy $SUT_CONTAINER -v /var/run/docker.sock:/tmp/docker.sock:ro
assert_success
docker_wait_for_log $SUT_CONTAINER 3 "Watching docker events"
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
}
@test "[$TEST_FILE] nginx-proxy forwards requests for 2 hosts" {
# WHEN a container runs a web server with VIRTUAL_HOST set for multiple hosts
prepare_web_container bats-multiple-hosts-1 80 -e VIRTUAL_HOST=multiple-hosts-1-A.bats,multiple-hosts-1-B.bats
dockergen_wait_for_event $SUT_CONTAINER start bats-multiple-hosts-1
sleep 1
# THEN querying the proxy without Host header → 503
run curl_container $SUT_CONTAINER / --head
@ -38,3 +37,7 @@ function setup {
run curl_container $SUT_CONTAINER /data --header 'Host: multiple-hosts-1-B.bats'
assert_output "answer from port 80"
}
@test "[$TEST_FILE] stop all bats containers" {
stop_bats_containers
}

17
test/multiple-ports.bats
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@ -5,10 +5,7 @@ SUT_CONTAINER=bats-nginx-proxy-${TEST_FILE}
function setup {
# make sure to stop any web container before each test so we don't
# have any unexpected contaiener running with VIRTUAL_HOST or VIRUTAL_PORT set
CIDS=( $(docker ps -q --filter "label=bats-type=web") )
if [ ${#CIDS[@]} -gt 0 ]; then
docker stop ${CIDS[@]} >&2
fi
stop_bats_containers web
}
@ -16,13 +13,15 @@ function setup {
# GIVEN nginx-proxy
run nginxproxy $SUT_CONTAINER -v /var/run/docker.sock:/tmp/docker.sock:ro
assert_success
docker_wait_for_log $SUT_CONTAINER 3 "Watching docker events"
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
}
@test "[$TEST_FILE] nginx-proxy defaults to the service running on port 80" {
# WHEN
prepare_web_container bats-web-${TEST_FILE}-1 "80 90" -e VIRTUAL_HOST=web.bats
dockergen_wait_for_event $SUT_CONTAINER start bats-web-${TEST_FILE}-1
sleep 1
# THEN
assert_response_is_from_port 80
@ -32,6 +31,8 @@ function setup {
@test "[$TEST_FILE] VIRTUAL_PORT=90 while port 80 is also exposed" {
# GIVEN
prepare_web_container bats-web-${TEST_FILE}-2 "80 90" -e VIRTUAL_HOST=web.bats -e VIRTUAL_PORT=90
dockergen_wait_for_event $SUT_CONTAINER start bats-web-${TEST_FILE}-2
sleep 1
# THEN
assert_response_is_from_port 90
@ -41,11 +42,17 @@ function setup {
@test "[$TEST_FILE] single exposed port != 80" {
# GIVEN
prepare_web_container bats-web-${TEST_FILE}-3 1234 -e VIRTUAL_HOST=web.bats
dockergen_wait_for_event $SUT_CONTAINER start bats-web-${TEST_FILE}-3
sleep 1
# THEN
assert_response_is_from_port 1234
}
@test "[$TEST_FILE] stop all bats containers" {
stop_bats_containers
}
# assert querying nginx-proxy provides a response from the expected port of the web container
# $1 port we are expecting an response from

37
test/test_helpers.bash
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@ -33,6 +33,7 @@ function nginxproxy {
shift
docker_clean $container_name \
&& docker run -d \
--label bats-type="nginx-proxy" \
--name $container_name \
"$@" \
$SUT_IMAGE \
@ -66,7 +67,7 @@ function curl_container {
local -r container=$1
local -r path=$2
shift 2
docker run appropriate/curl --silent \
docker run --label bats-type="curl" appropriate/curl --silent \
--connect-timeout 5 \
--max-time 20 \
"$@" \
@ -128,7 +129,39 @@ function prepare_web_container {
# THEN querying directly port works
IFS=$' \t\n' # See https://github.com/sstephenson/bats/issues/89
for port in $ports; do
run retry 5 1s docker run appropriate/curl --silent --fail http://$(docker_ip $container_name):$port/data
run retry 5 1s docker run --label bats-type="curl" appropriate/curl --silent --fail http://$(docker_ip $container_name):$port/data
assert_output "answer from port $port"
done
}
# stop all containers with the "bats-type" label (matching the optionally supplied value)
#
# $1 optional label value
function stop_bats_containers {
local -r value=$1
if [ -z "$value" ]; then
CIDS=( $(docker ps -q --filter "label=bats-type") )
else
CIDS=( $(docker ps -q --filter "label=bats-type=$value") )
fi
if [ ${#CIDS[@]} -gt 0 ]; then
docker stop ${CIDS[@]} >&2
fi
}
# wait for a docker-gen container to receive a specified event from a
# container with the specified ID/name
#
# $1 docker-gen container name
# $2 event
# $3 ID/name of container to receive event from
function dockergen_wait_for_event {
local -r container=$1
local -r event=$2
local -r other=$3
local -r did=$(docker_id "$other")
docker_wait_for_log "$container" 9 "Received event $event for container ${did:0:12}"
}

17
test/wildcard-hosts.bats
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@ -5,10 +5,7 @@ SUT_CONTAINER=bats-nginx-proxy-${TEST_FILE}
function setup {
# make sure to stop any web container before each test so we don't
# have any unexpected contaiener running with VIRTUAL_HOST or VIRUTAL_PORT set
CIDS=( $(docker ps -q --filter "label=bats-type=web") )
if [ ${#CIDS[@]} -gt 0 ]; then
docker stop ${CIDS[@]} >&2
fi
stop_bats_containers web
}
@ -16,13 +13,15 @@ function setup {
# GIVEN
run nginxproxy $SUT_CONTAINER -v /var/run/docker.sock:/tmp/docker.sock:ro
assert_success
docker_wait_for_log $SUT_CONTAINER 3 "Watching docker events"
docker_wait_for_log $SUT_CONTAINER 9 "Watching docker events"
}
@test "[$TEST_FILE] VIRTUAL_HOST=*.wildcard.bats" {
# WHEN
prepare_web_container bats-wildcard-hosts-1 80 -e VIRTUAL_HOST=*.wildcard.bats
dockergen_wait_for_event $SUT_CONTAINER start bats-wildcard-hosts-1
sleep 1
# THEN
assert_200 f00.wildcard.bats
@ -33,6 +32,8 @@ function setup {
@test "[$TEST_FILE] VIRTUAL_HOST=wildcard.bats.*" {
# WHEN
prepare_web_container bats-wildcard-hosts-2 80 -e VIRTUAL_HOST=wildcard.bats.*
dockergen_wait_for_event $SUT_CONTAINER start bats-wildcard-hosts-2
sleep 1
# THEN
assert_200 wildcard.bats.f00
@ -43,6 +44,8 @@ function setup {
@test "[$TEST_FILE] VIRTUAL_HOST=~^foo\.bar\..*\.bats" {
# WHEN
prepare_web_container bats-wildcard-hosts-2 80 -e VIRTUAL_HOST=~^foo\.bar\..*\.bats
dockergen_wait_for_event $SUT_CONTAINER start bats-wildcard-hosts-2
sleep 1
# THEN
assert_200 foo.bar.whatever.bats
@ -51,6 +54,10 @@ function setup {
}
@test "[$TEST_FILE] stop all bats containers" {
stop_bats_containers
}
# assert that querying nginx-proxy with the given Host header produces a `HTTP 200` response
# $1 Host HTTP header to use when querying nginx-proxy