1.Login to Jenkins portal.
Then Click on New Items.
Automating Integration & Deployment Using Git, Jenkins and Docker Part 4 /Integrating Docker Hub with jenkins
Integrating Docker Hub registry account with Jenkins.
1.Create a account at Docker Hub .
2. After creating account just login into Docker Hub. Once you have successfully just click on the create
Repository .
3.select a repository name. In this case I have chosen tutorial .
4.If you want to make your repo private you can chose private. Here in this case I have chosen public
And then click on create.
5.Now go to Jenkins. Click on Manage Jenkins .
6.Click on configure credentials.
7.Now in the left-hand side click on Credentials.
8.Now click on Jenkins as highlighted.
9.Now click on Global Credentials.
10.Now click on add credentials as Highlighted.
Fill the below with you docker hub credentials and Password and the click ok .
Automating Integration & Deployment Using Git, Jenkins and Docker Part 3 / Docker Installation
Docker Installation.
There are several Docker specific jargon that we need to clarify before diving into installation and usage examples. Below are commonly used terminologies in Docker ecosystem.
- Docker daemon: This is also called Docker Engine, it is a background process which runs on the host system responsible for building and running of containers.
- Docker Client: This is a command line tool used by the user to interact with the Docker daemon.
- Docker Image: An image is an immutable file that’s essentially a snapshot of a container. A docker image has a file system and application dependencies required for running applications.
- Docker container: This is a running instance of a docker image with an application and its dependencies. Each container has a unique process ID and isolated from other containers. The only thing containers share is the Kernel.
- Docker registry: This is an application responsible for managing storage and delivery of Docker container images. It can be private or public.
We will install Docker CE on RHEL 8 / CentOS 8. We will start with the installation of Docker then Docker Compose.
There are two editions of Docker available.
- Community Edition (CE): ideal for individual developers and small teams looking to get started with Docker and experimenting with container-based apps.
- Enterprise Edition (EE): Designed for enterprise development and IT teams who build, ship, and run business-critical applications in production at scale.
The Docker Enterprise Edition requires an active license to use. In this guide, we will install Docker CE on RHEL 8. Let’s add Docker repository before we can install it.
# sudo curl https://download.docker.com/linux/centos/docker-ce.repo -o /etc/yum.repos.d/docker-ce.repo
This command will download Docker repository file to /etc/yum.repos.d/docker-ce.repo. Let’s update RPM index cache.
# sudo yum makecache
Finally install Docker CE by running the command below in your terminal.
# sudo dnf -y install docker-ce --nobest
Start and enable Docker Service to start at boot.
# sudo systemctl enable --now docker
The docker service status should indicate running.
# sudo systemctl status docker
The docker group is created, but no users are added to the group. Add your user to this group to run docker commands without sudo.
# sudo usermod -aG docker $USER
# sudo id $USER
Logout and Login again to use Docker without sudo. The version of Docker installed can be checked with:
# sudo newgrp docker
# sudo docker version
Install Docker-Compose.
sudo curl -L "https://github.com/docker/compose/releases/download/1.25.5/docker-compose-$(uname -s)-$(uname -m)" -o /usr/local/bin/docker-compose
Apply executable permissions to the binary:
sudo chmod +x /usr/local/bin/docker-compose
Create a symbolic link to /usr/bin.
sudo ln -s /usr/local/bin/docker-compose /usr/bin/docker-compose
In Next part We will configure Jenkins.
Automating Integration & Deployment Using Git, Jenkins and Docker Part 2 / Git Installation
Git Installation
We will use yum to install GIT in vm.
# sudo yum install -y git
Once installed git, you can verify the version of installed Git using the following command.
# sudo git --version
Configuring Git
Now as git is installed on the CentOS machine successfully, now we will need to set up your personal info which will be used when you commit any changes to our code.
# sudo git config --global user.name "Your Name"
# sudo git config --global user.email "youremail@yourdomain.com"
To verify that the above settings were added successfully, we can list all of the configuration settings that have been added by typing.
# git config --list
Automating Integration & Deployment Using Git, Jenkins and Docker Part 1/ Jenkins Installation
Perquisite: -
At least 1 Physical /VM public instance Linux Server .
Application Required.
1.Jenkins
2.Git/GitHub Account
3.Docker/Swarm
4.Docker Hub Account
In this Tutorial we will be using two google virtual machine.
1.We will start with installing Jenkins server on first host (Jenkins)
