DEVOPS DOSE

1. Infrastructure Security

Harden cloud infrastructure (AWS, Azure, GCP, etc.).

Use IAM roles/policies, least privilege access.

Manage security groups, NACLs, VPC subnets properly.

Encrypt data at rest and in transit.

2. CI/CD Pipeline Security

Secure GitHub Actions, Jenkins, GitLab pipelines:

Mask secrets (use secret managers like AWS Secrets Manager, HashiCorp Vault).

Restrict build permissions.

Validate source commits.

Scan code for vulnerabilities using tools like SonarQube, Snyk, or Trivy.

3. Container Security

Use minimal base images (e.g., Alpine).

Regularly scan Docker images for CVEs (e.g., Trivy, Grype).

Implement image signing and verification.

Use read-only file systems where possible.

4. Kubernetes Security

Implement RBAC (Role-Based Access Control).

Enable PodSecurityPolicies or PodSecurity Standards.

Use network policies to restrict traffic.

Protect etcd, API server with TLS.

Use Secrets and ConfigMaps securely.

5. Monitoring, Logging & Incident Response

Implement logging (e.g. loki, CloudWatch).

Set up alerting (e.g., Prometheus + Alertmanager, gchat notification, emails)

Use intrusion detection tools (e.g., Falco).

Conduct regular audit logs review.

6. Secrets Management

Do not hard-code secrets.

Use tools like:

AWS Secrets Manager

HashiCorp Vault

Kubernetes Secrets (with encryption at rest)

7. Compliance & Governance

Conduct regular security reviews.

Maintain documentation and audit trails.

8. Regular Testing

Perform vulnerability assessments and penetration testing.

Automate security tests in pipelines.

Best Practices

Implement Zero Trust architecture.

Enforce MFA for all admin accounts.

Keep systems and dependencies up to date.