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Docker #3

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c43da4f
Create Harshini
Harshu-stack Sep 4, 2024
f275695
k8s-master.h
Harshu-stack Sep 4, 2024
d522efd
Docker
Harshu-stack Sep 4, 2024
1db1515
jenkins
Harshu-stack Sep 4, 2024
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18 changes: 18 additions & 0 deletions Docker
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# Use an official OpenJDK runtime as a parent image
FROM openjdk:8-jre-alpine

# set shell to bash
# source: https://stackoverflow.com/a/40944512/3128926
RUN apk update && apk add bash

# Set the working directory to /app
WORKDIR /app

# Copy the fat jar into the container at /app
COPY /target/docker-java-app-example.jar /app

# Make port 8080 available to the world outside this container
EXPOSE 8080

# Run jar file when the container launches
CMD ["java", "-jar", "docker-java-app-example.jar"]
17 changes: 17 additions & 0 deletions jenkins
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#!/bin/bash
# USE UBUNTU20.04 - INSTANCE: 2GB RAM + 2VCPU MIN - WILL ONLY WORK
sudo apt update -y
sudo apt install openjdk-17-jdk -y
sudo apt update -y
sudo apt install maven -y
curl -fsSL https://pkg.jenkins.io/debian-stable/jenkins.io-2023.key | sudo tee \
/usr/share/keyrings/jenkins-keyring.asc > /dev/null
echo deb [signed-by=/usr/share/keyrings/jenkins-keyring.asc] \
https://pkg.jenkins.io/debian-stable binary/ | sudo tee \
/etc/apt/sources.list.d/jenkins.list > /dev/null
sudo apt update -y
sudo apt install jenkins -y
service jenkins start
cat /var/lib/jenkins/secrets/initialAdminPassword
#chmod 777 jenkins.sh
#./jenkins.sh
38 changes: 38 additions & 0 deletions k8s-master.h
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## Install Docker
sudo wget https://raw.githubusercontent.com/lerndevops/labs/master/scripts/installDocker.sh -P /tmp
sudo chmod 755 /tmp/installDocker.sh
sudo bash /tmp/installDocker.sh
sudo systemctl restart docker.service


## Install CRI-Docker
sudo wget https://raw.githubusercontent.com/lerndevops/labs/master/scripts/installCRIDockerd.sh -P /tmp
sudo chmod 755 /tmp/installCRIDockerd.sh
sudo bash /tmp/installCRIDockerd.sh
sudo systemctl restart cri-docker.service


## Install kubernetes


sudo wget https://raw.githubusercontent.com/lerndevops/labs/master/scripts/installK8S.sh -P /tmp
sudo chmod 755 /tmp/installK8S.sh
sudo bash /tmp/installK8S.sh


## Initialize kubernetes Master Node

sudo kubeadm init --cri-socket unix:///var/run/cri-dockerd.sock --ignore-preflight-errors=all


sudo mkdir -p $HOME/.kube
sudo cp -i /etc/kubernetes/admin.conf $HOME/.kube/config
sudo chown $(id -u):$(id -g) $HOME/.kube/config


## install networking driver -- Weave/flannel/canal/calico etc...


## below installs calico networking driver

kubectl apply -f https://raw.githubusercontent.com/projectcalico/calico/v3.24.1/manifests/calico.yaml