Devops

Problem Statement

Create a scientific calculator program with user menu driven operations

• Square root function
• Factorial function
• Natural logarithm
• Power function

Devops toolchain used

1. Source control management: GitHub
2. Testing: Junit
3. Build: Maven
4. Continuos integration: Jenikins
5. Containerize: Docker and docker hub
6. Deployement and configuration management: Ansible
7. Monitoring: ElasticSearch, Logstash, Kibana

Jenkins

service jenkins restart
service jenkins status

Build

mvn clean install

Deploy (Manual)

java -jar target/devopscalc-2021.1.war

Docker

sudo systemctl disable docker.service
sudo systemctl disable docker.socket
sudo systemctl status docker
docker run --name test -it image_name
docker start -i test
docker build -t sourabhpayal/devops-learn:latest .
docker run --name test  -d  -p 8090:8090 sourabhpayal/devops-learn:latest
docker logs -f test
docker inspect -f "{{ .NetworkSettings.IPAddress }}" test
service sshd status
docker exec -it test top 

ELK

sh logstash.sh -f logstash.conf