DevOps Tool Series: Trivy

Trivy is an open-source vulnerability scanner for container images and filesystems. It is designed to help developers and security professionals identify vulnerabilities in their containerized applications early in the development lifecycle. Trivy supports scanning images from various container registries, and it provides detailed reports on discovered vulnerabilities.

USE CASES:

Scan a Container Image:
Use Trivy to scan a container image for vulnerabilities. Specify the image name and tag.

$ trivy image <image_name>:<tag>

Example:
$ trivy image nginx:latest

Periodic Security Checks:
Run Trivy regularly on container images in your registry to stay informed about potential vulnerabilities. Regular scans ensure that your images are up-to-date with security patches.

Review Scan Results:
Trivy will analyze the image layers, identify vulnerabilities, and provide a detailed report. Review the output to understand the severity and details of each vulnerability.

Integrate with CI/CD:
Incorporate Trivy scans into your CI/CD pipeline to automatically check container images for vulnerabilities before deploying them. This helps catch security issues early in the development process.

TRIVY INSTALLATION:

sudo apt-get install wget apt-transport-https gnupg lsb-release
wget -qO - https://aquasecurity.github.io/trivy-repo/deb/public.key | sudo apt-key add -
echo deb https://aquasecurity.github.io/trivy-repo/deb $(lsb_release -sc) main | sudo tee -a /etc/apt/sources.list.d/trivy.list
sudo apt-get update
sudo apt-get install trivy

Validate the Installation: