Nick Navarro

1603686424

Setup Jenkins in a Docker container - Building a Jenkins Pipeline for beginners

In this tutorial I will show you how to setup Jenkins in a Docker container. Once installed I take you through some of the basic features to get familiarised with the Jenkins dashboard including project types that we can build and the plugin system.

Subscribe : https://www.youtube.com/channel/UC1mxuk7tuQT2D0qTMgKji3w

#docker #jenkins

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Buddha Community

Setup Jenkins in a Docker container - Building a Jenkins Pipeline for beginners
Iliana  Welch

Iliana Welch

1597368540

Docker Tutorial for Beginners 8 - Build and Run C++ Applications in a Docker Container

Docker is an open platform that allows use package, develop, run, and ship software applications in different environments using containers.
In this course We will learn How to Write Dockerfiles, Working with the Docker Toolbox, How to Work with the Docker Machine, How to Use Docker Compose to fire up multiple containers, How to Work with Docker Kinematic, Push images to Docker Hub, Pull images from a Docker Registery, Push stacks of servers to Docker Hub.
How to install Docker on Mac.

#docker tutorial #c++ #docker container #docker #docker hub #devopstools

Nick Navarro

1603686424

Setup Jenkins in a Docker container - Building a Jenkins Pipeline for beginners

In this tutorial I will show you how to setup Jenkins in a Docker container. Once installed I take you through some of the basic features to get familiarised with the Jenkins dashboard including project types that we can build and the plugin system.

Subscribe : https://www.youtube.com/channel/UC1mxuk7tuQT2D0qTMgKji3w

#docker #jenkins

Mikel  Okuneva

Mikel Okuneva

1602317778

Ever Wondered Why We Use Containers In DevOps?

At some point we’ve all said the words, “But it works on my machine.” It usually happens during testing or when you’re trying to get a new project set up. Sometimes it happens when you pull down changes from an updated branch.

Every machine has different underlying states depending on the operating system, other installed programs, and permissions. Getting a project to run locally could take hours or even days because of weird system issues.

The worst part is that this can also happen in production. If the server is configured differently than what you’re running locally, your changes might not work as you expect and cause problems for users. There’s a way around all of these common issues using containers.

What is a container

A container is a piece of software that packages code and its dependencies so that the application can run in any computing environment. They basically create a little unit that you can put on any operating system and reliably and consistently run the application. You don’t have to worry about any of those underlying system issues creeping in later.

Although containers were already used in Linux for years, they became more popular in recent years. Most of the time when people are talking about containers, they’re referring to Docker containers. These containers are built from images that include all of the dependencies needed to run an application.

When you think of containers, virtual machines might also come to mind. They are very similar, but the big difference is that containers virtualize the operating system instead of the hardware. That’s what makes them so easy to run on all of the operating systems consistently.

What containers have to do with DevOps

Since we know how odd happenings occur when you move code from one computing environment to another, this is also a common issue with moving code to the different environments in our DevOps process. You don’t want to have to deal with system differences between staging and production. That would require more work than it should.

Once you have an artifact built, you should be able to use it in any environment from local to production. That’s the reason we use containers in DevOps. It’s also invaluable when you’re working with microservices. Docker containers used with something like Kubernetes will make it easier for you to handle larger systems with more moving pieces.

#devops #containers #containers-devops #devops-containers #devops-tools #devops-docker #docker #docker-image

Docker Architecture Overview & Docker Components [For Beginners]

If you have recently come across the world of containers, it’s probably not a bad idea to understand the underlying elements that work together to offer containerisation benefits. But before that, there’s a question that you may ask. What problem do containers solve?

After building an application in a typical development lifecycle, the developer sends it to the tester for testing purposes. However, since the development and testing environments are different, the code fails to work.

Now, predominantly, there are two solutions to this – either you use a Virtual Machine or a containerised environment such as Docker. In the good old times, organisations used to deploy VMs for running multiple applications.

So, why did they started adopting containerisation over VMs? In this article, we will provide detailed explanations of all such questions.

#docker containers #docker engine #docker #docker architecture

Eldred  Metz

Eldred Metz

1597300740

Docker build/push with declarative pipeline in Jenkins

Here is a quick and full example to build a docker image from private GitHub repo and push to docker hub with declarative pipeline in Jenkins.

I created a sample repo with basic Dockerfile and Jenkinsfile

Image for post

$ cat Dockerfile

FROM ubuntu:20.04
RUN apt update && apt upgrade -y

Configure Jenkins

Ensure that you installed docker engine on Jenkins instance and git, docker plugins

Install Docker-CE on Ubuntu 18 from https://docs.docker.com/engine/install/ubuntu/

After that, allow Jenkins users to access the docker socket.

sudo usermod -aG docker jenkins
sudo systemctl restart jenkins

Test your docker access with Jenkins user

$ sudo su - jenkins
$ docker ps

CONTAINER ID        IMAGE               COMMAND             CREATED             STATUS              PORTS               NAMES

Create credentials on Jenkins for GitHub and docker hub

To create a GitHub credentials we need to create a token. Check the following URL to create a personal API Token

https://support.cloudbees.com/hc/en-us/articles/234710368-GitHub-Permissions-and-API-token-Scopes-for-Jenkin

To create a GitHub credentials go to Manage Jenkins->Manage Credentials(Under Security) click to Jenkins Store

#pipeline #docker #github #jenkins