I have one jenkins server. There I cannot install docker. So the question is what is the correct way of integrating jenkins with a docker server? Whats the fastest easiest and most convenient way to integrate it?
1.Through a jenkins node with docker installed there
2.Through ssh? And if - how would the configuration look?
3.Only through installed docker on the main jenkins server
4.Other?
that depends on the version of Docker engine you are about to install and the jobs you want to sue it for ( pipeline , freestyle )
basically if your docker engine is no greater then version 1.11 the best way is to use Docker Plugin from Jenkins if you want to simulate containers as slaves.
you can also use workflow docker plugin and even ssh as you said.
it all depends on what you want to achieve from your docker usage
Related
I am very new to devops and I could really use some help to understand the concept of this.
So I am trying to develop a continuous integration environment using VirtualBox and Vagrant. I've read some examples of how to build such an environment to pull a maven project from github, build it and deploy to the nexus artefact repository.
I have managed to configure a VM with Ubuntu and installed Tomcat on it.
What I don't understand is where should I configure the Jenkins jobs to build the project and to deploy it to nexus and to make it run in Tomcat Server. On my local machine or in the virtual machine ?
Thanks.
If you are using bridged/hostonly networking for ubuntu, then you can run the jenkins in your host machine. If it is NAT/Private networking, use guest machine to run jenkin jobs.
How to automate Jenkins for Docker Swarm deployment.
I am wondering if there are any plugins available in Jenkins which will help in Docker Swarm deployment or any other alternative way through which we can achieve the automation of Swarm deployment using Jenkins existing plugins?
Fixed this problem by using a plugin called Publish over SSH
Need to install a Jenkins plugins “Publish over SSH”, this plugin will allows us to
Sends files over SSH(SFTP)
Execute commands on a remote server
First step will be to add remote hosts and second will be to add an execution/build step where the commands will be executed
Follow this link for step by step instruction
We are building a java based high-availability service for a financial application. I am part of the team for managing continuous integration using Jenkins.
Lately we introduced continuous deployment too in the list and we opted for Docker containers.
Here is the the infrastructure:
The production cluster will have 3 RHEL machines running the following docker containers on each of them:
3 instances of Wildfly
Cassandra
Nginx
Application IDE is Netbeans and source code is in git.
Currently we are doing manual deployment on this infrastructure.
Please suggest me some tools which I use with Jenkins to complete the continuous deployment process.
You might want jenkins to trigger on each push to your jenkins repository. There are plugins that help you do that with a webhook.Gitlab-plugin is a solution similar solution exist for Github and other git solutions.
Instead of heavily relying on bash and jenkins configuration you might want to setup a jenkins pipeline with the jenkins pipeline plugin or even pipeline: multibranch plugin. With those you can automate your build in groovy code (jenkinsfile) in a repository with the possibility to add functunality with other plugins building on them.
You can then use the docker pipeline plugin to easily build docker containers, push docker images and run code inside docker containers.
I would suggest building your services inside docker so that your jenkins machine does not have all the different dependencies installed (and therefore maybe conflicting versions). Use docker containers with all the dependencies and run your build code in there with the docker pipeline plugin from groovy.
Install a registry solution to push and pull your docker images to.
Use the Pipeline: Shared Groovy Libraries to extract libraries from your jenkinsfiles so that they can be reused. Those library files should have their own repository which your jenkins knows about and keeps up to date. Possibly you can even have an entire pipeline process shared between multiple projects which simply add parameters in their jenkinsfile.
A lot of text and no examples. If you think something is interesting and you want to see some code just ask. I am currently setting all this up.
I see no problem with dockerizing Jenkins master (there is even an image ready to use) however I would like to dockerize also slaves. However I'd like these slaves to run iOS builds, so it neeeds slaves to run OS X. Is it doable? Maybe Vagrant, Puppet, Chef anything else could help to automate slaves provisioning?
So you can't use Docker on iOS so you'll need something else there but otherwise this kind of thing is usually handled via Jenkins plugins instead of an external configuration management tool. Jenkins likes to controls its own universe.
There is a Docker Plugin which allows you to deploy dockerized slaves. Follow the documentation, it is pretty simple (no chef/puppet needed)
The problem is that I am not sure that it is possible to have XCode inside the docker container.
Try docker search OSX and docker search Xcode for the image in the Docker Hub.
I want to setup Jenkins master on server A and slave on server B with use of Docker.
Both servers are virtual machines dedicated for Jenkins.
Currently I have started Docker container on server A for master, based on the official Jenkins docker image. But what docker image should I use for Jenkins slave?
That actually depends on the environment and tools you need in your build environment. For example, if you build a C project, you would need an image containing a C compiler and possibly make if you use Makefiles. If you build a Java project, you would need a JDK with a Java compiler and possibly Ant / Maven / Gradle if you use them as part of your build.
You can use the evarga/jenkins-slave as a good starting point for your build slave.
This image already contains JDK. If you simply need JDK and Maven on your build slave, you can build your Docker image with the following Dockerfile:
FROM evarga/jenkins-slave
run apt-get install maven
Using Docker images for build slaves is actually a good idea. Some of the reasons appear at Templating Jenkins Build Environments with Docker Containers:
Docker has established itself as a popular and convenient way to
bootstrap isolated and reproducible environments, which enables Docker
containers to be the most maintainable slave environments. Docker
containers’ tooling and other configurations can be version controlled
in an environment definition called a Dockerfile, and Dockerfiles
allows multiple identical containers can be created quickly using this
definition or for more customized off-shoots to be created by using
that Dockerfile’s image as a base.
I suggest you take trying to use dynamic|ephemeral docker nodes, instead of manually creating nodes and connecting to them via ssh. Take a look at https://engineering.riotgames.com/news/putting-jenkins-docker-container, it's very powerful and I think it's one of killer usecases for Docker.