EC2 installation setup

util.sh

#! /bin/bash

# to establish connection first



# ++++++++++++++++++++++++ java installation ++++++++++++++++++++++++++++

sudo apt update -y
sudo apt upgrade -y

sudo apt install openjdk-21-jdk -y

java --version

# +++++++++++++++++++++++ docker installation ++++++++++++++++++++++++++
# requires root

sudo apt-get update -y
sudo apt-get upgrade -y
sudo apt-get install -y ca-certificates curl gnupg
sudo install -m 0755 -d /etc/apt/keyrings
curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo tee /etc/apt/keyrings/docker.asc > /dev/null
sudo chmod a+r /etc/apt/keyrings/docker.asc





echo \
  "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.asc] https://download.docker.com/linux/ubuntu \
  $(. /etc/os-release && echo "$VERSION_CODENAME") stable" | \
  sudo tee /etc/apt/sources.list.d/docker.list > /dev/null



sudo apt-get update
sudo apt-get install -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin

# Increase Docker memory limits via systemd override
sudo mkdir -p /etc/systemd/system/docker.service.d
echo -e "[Service]\nLimitMEMLOCK=infinity\nLimitNOFILE=1048576\nLimitNPROC=infinity" | sudo tee /etc/systemd/system/docker.service.d/override.conf

# Reload systemd and restart Docker
sudo systemctl daemon-reexec
sudo systemctl daemon-reload
sudo systemctl restart docker



sudo docker ps

# sudo usermod -aG docker $USER
# newgrp docker



# ++++++++++++++++++++++++++++++++++ kubctl +++++++++++++++++++++++++++++


sudo apt update && sudo upgrade -y

sudo snap install kubectl --classic


# ++++++++++++++++++++++++++++++++++ minikube installation +++++++++++++++++

sudo apt update && sudo apt upgrade -y

sudo apt install -y curl wget apt-transport-https

curl -LO https://storage.googleapis.com/minikube/releases/latest/minikube-linux-amd64
chmod +x *
sudo install minikube-linux-amd64 /usr/local/bin/minikube
minikube version

eval $(minikube docker-env)

minikube start --driver=docker



# +++++++++++++++ helm +++++++++++++++++++++++==
sudo snap install helm --classic

# ++++++++++++ to install oci to doploy app on openshift +++++

curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
sudo install -o root -g root -m 0755 kubectl /usr/local/bin/kubectl


# ++++++ openshift cli ++++
curl -LO https://mirror.openshift.com/pub/openshift-v4/clients/ocp/latest/openshift-client-linux.tar.gz
tar -xvzf openshift-client-linux.tar.gz
sudo mv oc /usr/local/bin/
oc version
sudo apt-get install -y unzip
sudo apt-get update && sudo apt-get install -y python3-pip
sudo apt-get install -y python3.12-venv

# ++++ Create group in last as it is opening new shell such that commands after this wont run +++++
sudo usermod -aG docker $USER
newgrp docker
minikube start --driver=docker