Tools Templates

Implementing DevOps principles to streamline development and operations.

🚀 Database Installations

Setup MySQL on Ubuntu Instances

📌 MySQL Database on Ubuntu 24.04 Instance

# Update and Install MySQL
sudo apt update && sudo apt upgrade -y
sudo apt install mysql-server -y
sudo mysql --version

# Configure MySQL for Password and Remote Login
sudo mysql

# Inside the MySQL shell, run the following:
ALTER USER 'root'@'localhost' IDENTIFIED WITH mysql_native_password BY '1234';
CREATE USER IF NOT EXISTS 'root'@'%' IDENTIFIED BY '1234';
GRANT ALL PRIVILEGES ON *.* TO 'root'@'%' WITH GRANT OPTION;
FLUSH PRIVILEGES;
EXIT;

# Allow Remote Connections
sudo nano /etc/mysql/mysql.conf.d/mysqld.cnf

# Change it to: 
bind-address = 0.0.0.0

# Restart MySQL to Apply Changes
sudo systemctl restart mysql

🚀 Docker Installation

Setup Docker on Ubuntu 24.04

📌 Docker Installation Steps

sudo apt update
sudo apt  install docker.io -y
sudo docker --version
sudo apt install docker-compose -y
docker-compose --version

🚀 Maven Installation

Setup Maven on Ubuntu 24.04

📌 Maven Installation Steps

#  Switch to Root User
$ sudo su -

# Download Apache Maven 3.9.11
$ wget https://dlcdn.apache.org/maven/maven-3/3.9.11/binaries/apache-maven-3.9.11-bin.tar.gz

# Extract the Archive
$ tar -zxvf apache-maven-3.9.11-bin.tar.gz

# Remove the Tar File
$ rm -rf apache-maven-3.9.11-bin.tar.gz

# Rename the Extracted Directory
$ mv apache-maven-3.9.11 maven

# Add Maven to the PATH: Edit the .bashrc file:
$ vi ~/.bashrc

# Add this line at the end of the file:
$ export PATH=/root/maven/bin:$PATH

# Apply the Updated .bashrc
$ source ~/.bashrc

# Verify Maven Installation
$ mvn --version

🚀 Ansible Installation

Setup Ansible on Ubuntu 24.04

Ansible Master node


bash <(curl -sL https://tinyurl.com/mse8n4k6)

Run this only in Master Node

After this need to do manual steps to add Worker Nodes

Ansible Worker nodes


bash <(curl -sL https://tinyurl.com/munbkzpb)

Run this in all the worker nodes

KubeAdm Cluster Installation

Setup Kubeadm Cluster on Ubuntu 24.04

Kube Master node


curl -sL https://tinyurl.com/mt346aen | bash

Run this only in Master Node

After this need to do manual steps to add Worker Nodes

Kube Worker nodes


curl -sL https://tinyurl.com/yvmvxmzb | bash

Run this in all the worker nodes

AWS CLI Installation

AWS CLI Installation in Ubuntu

# 1. Update packages
sudo apt update

# 2. Install required packages
sudo apt install -y unzip curl

# 3. Download AWS CLI v2 installer
curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip"

# 4. Unzip the installer
unzip awscliv2.zip

# 5. Run the installer
sudo ./aws/install

# 6. Check the version
aws --version

🚀 Nexus Repository Setup

Add Nexus Repositories and Distribution Management

📌 Nexus Repositories in pom.xml

<repositories>
    <repository>
        <id>nexus-releases</id>
        <name>maven-releases</name>
        <url>http://localhost:8081/repository/maven-releases/</url>
    </repository>
    <repository>
        <id>nexus-snapshots</id>
        <name>maven-snapshots</name>
        <url>http://localhost:8081/repository/maven-snapshots/</url>
    </repository>
</repositories>
                          
<distributionManagement>
    <repository>
        <id>nexus-releases</id>
        <url>http://localhost:8081/repository/maven-releases/</url>
    </repository>
    <snapshotRepository>
        <id>nexus-snapshots</id>
        <url>http://localhost:8081/repository/maven-snapshots/</url>
    </snapshotRepository>
</distributionManagement>

📌 Nexus Settings.xml

<settings>
    <servers>
        <server>
            <id>nexus-releases</id>
            <username>admin</username>
            <password>admin</password>
        </server>
        <server>
            <id>nexus-snapshots</id>
            <username>admin</username>
            <password>admin</password>
        </server>
    </servers>
</settings>