GoCD Elastic agent plugin for Docker Swarm
Table of Contents
- Building the code base
- Is this production ready?
- Using your own docker image with elastic agents
Documentation for installation is available here.
Building the code base
To build the jar, run
./gradlew clean test assemble
Is this production ready?
We think so. We've been using it on https://build.gocd.org for a while now. You should know that this plugin terminates docker containers aggressively (within a minute or two of the agent being idle).
Using your own docker image with elastic agents
More information to build custom GoCD agent docker image is available here
If you already have it running it on a mac, make sure to restart it (see https://github.com/docker/for-mac/issues/17#mobyaccess). Time drift is known to cause the plugin to not work, because the timestamps returned by the docker API has drifted from the host.
A good way to know if there's a time drift is to run
docker ps —
``` CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES e0754c9f4cdb alpine:latest "/bin/sh" 32 minutes ago Up 17 seconds test 809f310ba1e4 ubuntu:trusty "/bin/bash" 33 minutes ago Up About a minute reverent_raman ```
Notice how the
STATUS are several minutes apart for a recently created container.
Enabling debug level logging
Enabling debug level logging can help you troubleshoot an issue with the elastic agent plugin. To enable debug level logs, edit the
/etc/default/go-server (for Linux) to add:
export GO_SERVER_SYSTEM_PROPERTIES="$GO_SERVER_SYSTEM_PROPERTIES -Dplugin.cd.go.contrib.elastic-agent.docker-swarm.log.level=debug"
If you're running the server via
./server.sh script —
$ GO_SERVER_SYSTEM_PROPERTIES="-Dplugin.cd.go.contrib.elastic-agent.docker-swarm.log.level=debug" ./server.sh
Copyright 2018, ThoughtWorks, Inc. Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at http://www.apache.org/licenses/LICENSE-2.0 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.