Jenkins_jenkins-from-zero-to-hero.md

jenkins-from-zero-to-hero

• https://dxc.udemy.com/course/jenkins-from-zero-to-hero/learn/lecture/19367702#overview
• https://github.com/ricardoandre97/jenkins-resources

Install Jenkins

• install virtual machine Oracle VM
• instal centos in that
• get the ip from VM
• install putty for ssh and connect jenkin machine

# First add repo to yum config manager
sudo yum install -y yum-utils
sudo yum-config-manager --add-repo https://download.docker.com/linux/centos/docker-ce.repo
# Use added repo to install and start docker
sudo yum install docker-ce docker-ce-cli containerd.io
sudo systemctl start docker
# Optional: Validate by run sample image 
sudo docker run hello-world

• install docker compose

#Copy the appropriate docker-compose binary from GitHub
sudo curl -L https://github.com/docker/compose/releases/download/1.22.0/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose

#NOTE: to get the latest version sudo curl -L https://github.com/docker/compose/releases/latest/download/docker-compose-$(uname -s)-$(uname -m) -o /usr/local/bin/docker-compose


#Fix permissions after download
sudo chmod +x /usr/local/bin/docker-compose

#Verify success
docker-compose version

• docker pull jenkin image

• how to quite from vi : hit : Escape then shift + : then wq then enter
• create docker-compose.yml for jenkis image run
• install suggested plugins
• create admin user
• create local DNS
• C:\Windows\System32\drivers\etc

Getting started with Jenkins

• Go to inside jenkin container and sh it

docker exec -it <container_name_or_id> <shell>
docker exec -it my_container bash

[jenkins@localhost jenkins-data]$ docker exec -ti jenkins bash
ienkins@2006d27ffa83 : /$

• Add paramaters for before building your job with paramater
• Add list parameters "choice parametrs"
• Add basic logic and boolean parametrs
• copying file from host to container

Jenkins & Docker

• install plugin

Jenkins & AWS

• upload mysql db backup into aws s3 using jenkins

#/bin/bash

DATE=$(date +%H-%M-%S)
BACKUP=db-$DATE.sql

DB_HOST=$1
DB_PASSWORD=$2
DB_NAME=$3
AWS_SECRET=$4
BUCKET_NAME=$5

mysqldump -u root -h $DB_HOST -p$DB_PASSWORD $DB_NAME > /tmp/$BACKUP && \
export AWS_ACCESS_KEY_ID=AKIAJRWZWY3CPV3F3JPQ && \
export AWS_SECRET_ACCESS_KEY=$AWS_SECRET && \
echo "Uploading your $BACKUP backup" && \
aws s3 cp /tmp/db-$DATE.sql s3://$BUCKET_NAME/$BACKUP

Jenkins & Ansible

Install Ansible

• create docker file for creating image for ansible on top of jenkis running image

FROM jenkins/jenkins

USER root

RUN apt-get update && apt-get install python3-pip -y && \
    pip3 install ansible --upgrade

USER jenkins