Problem Statement

• Launch ec2-instances on AWS Cloud eg. for master and slave.
• Create roles that will configure the master node and slave node separately.
• Launch a wordpress and MySQL database connected to it in the respective slaves.
• Expose the wordpress pod and the client able to hit the wordpress IP with its respective port.

Solution

• For Configuring and launching the k8smulti node cluster I am using my own ansible collection 😅.
• For Wordpress and Mysql we need to create yml files for k8s and deploy them.

Step-1)Launch ec2-instances on AWS Cloud and Configuring k8s Multi-Node

• Install collection

ansible-galaxy collection install rootritesh.k8s_cluster

Learn More:

• Only we need to copy the files from local…

Problem Statement

Ansible Roles to Configure K8S Multi-Node Cluster over AWS Cloud.

Solution

For this problem statement, I am using the Ansible collection, in this ansible collection I am creating 3 roles, one for ec2, the second for Kubernetes master, third for Kubernetes slave 🙂.

Prerequisites

• Ansible installed in OS.
• Dynamic Inventory configured.
• AWS CLI configured.

Problem Statement:

• Create your own Chat Servers, and establish a network to transfer data using Socket Programing by creating both Server and Client machine as Sender and Receiver both. Do this program using UDP data transfer protocol.
• Use multi-threading concept to get and receive data parallelly from both the Server Sides. Observe the challenges that you face to achieve this using UDP.

For this Problem Statement, we need two OS 😅.

Python Code:

Prerequisites:

• Ansible Installed
• Inventory Configured
• AWS CLIv2 installed and Configured

Step-1)Configuring Dynamic inventory

• Here I am using dynamic inventory because we have to configure minikube in ec2 instance.
• For the dynamic inventory, download ec2.py and ec2.ini from this given URL, and paste in the inventory folder:

https://github.com/ansible/ansible/tree/stable-2.9/contrib/inventory

• Now add this path in ansible.cfg
• After that, you also need to copy the key.pem for the ec2 instance launch.
• After copying your key, make it executable by the following command:

chmod 600 Key_Name.pem

Prerequisite:

• 3 VM(Virtual Machine).

Solution:

First, we need to delete all the IP addresses from all the OS routing tables. after that add the System A Ip in System B and System C routing table, at last, add the System B and System C Ip in System A routing table. huh, that’s simple 😅.

Step-1)Delete all the rules from all the Systems:

route del -net 192.168.0.0(IP_ADDRESS) gw 192.168.0.1(GATEWAY) netmask 255.255.255.0(NETMASK) enp0s3(NIC Card)

Prerequisite :

• Ansible installed.
• Inventory configured.

Step-1)Retreive the distro.

• First, we need to retrieve the distribution from ansible facts after use it.
• After we retrieve the distro, now we need to make the files respective to the distro, like — RedHat-8.yml, Ubuntu-16.yml, etc.

Step-2)Writing Playbook

• First, we need to make the playbook for the distro.

Prerequisite :

✅ Have an AWS account

Step-1)Launch ec2 instance

• First, select your region.
• Goto Service > EC2 > launch Ec2 instance.

• Select Amazon Linux 2 AMI.

Prerequisite :

✅ Docker Installed.

Solution:

First, we need to make one playbook for updating inventory, for this, I have jinja 😅 in Playbook, After that use hosts name for configuring the web server in the docker container.

Step-1)Make one Docker image, add user, configure the password, and enable ssh

• To make it simple I am using Dockerfile.

FROM ubuntu:latest
RUN apt update && apt install  openssh-server sudo -y
RUN useradd -rm -d /home/ubuntu -s /bin/bash -g root -G sudo -u 1000 test
RUN  echo "test:test"| chpasswd
RUN service ssh start
RUN echo "test ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers
EXPOSE 22
CMD ["/usr/sbin/sshd","-D"]

• Here I am using ubuntu:latest
• For changing the pass of the user use…