1) General:
Git – 3 year
Bash – 3 year

2) Programming language:

Python – 2 year

3) Web Proxy:

Nginx – 2 year
Traefik – 1 year
Apache – 1 year

4) Monitoring:
AWS Cloudwatch – 2 year
Azure Insight – 0.5 year
Prometheus – 1 year
Grafana – 1 year
DataDog – 1 year
5) Infrustructure:
Terraform – 2 year

Terragrunt – 1 year

6) Containerization:

Docker – 3 years

Kubernetes – 2 year

Helm – 2 year

7) Cloud:

AWS – 2 year

Azure – 1 year

8) SSL:

Certificate Manager(AWS)

Let’s Encrypt

9) CI/CD:

GitlabCI – 2 year

Jenkins

Github Action

AppCenter

Bitbucket Pipelines

10) Database:

PostgreSQL,MySQL, DynamoDB – 1 year