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tessl-labs/devops-essentials

DevOps essentials — Dockerfile best practices, CI/CD patterns, deployment configuration, and container security

89

1.21x
Quality

87%

Does it follow best practices?

Impact

100%

1.21x

Average score across 3 eval scenarios

SecuritybySnyk

Passed

No known issues

Overview
Quality
Evals
Security
Files

Evaluation results

100%

24%

Full-Stack React + Express App with Docker Compose

Criteria
Without context
With context

Multi-stage build for backend

100%

100%

Multi-stage build for frontend

100%

100%

Non-root user in at least one Dockerfile

0%

100%

.dockerignore file(s) created

100%

100%

Environment variables not hardcoded in docker-compose

83%

100%

Health checks in docker-compose

100%

100%

depends_on with health condition

100%

100%

Persistent volume for PostgreSQL

100%

100%

Specific base image tags

100%

100%

Cache-efficient layer ordering

100%

100%

HEALTHCHECK in Dockerfile

0%

100%

.env.example or documentation of required env vars

0%

100%

100%

17%

Node.js Express API Containerization

Criteria
Without context
With context

Multi-stage build

100%

100%

Non-root user

66%

100%

.dockerignore file created

100%

100%

Cache-efficient layer ordering

100%

100%

HEALTHCHECK instruction

0%

100%

Specific base image tag

100%

100%

Alpine or slim base image

100%

100%

npm ci instead of npm install

100%

100%

NODE_ENV set to production

100%

100%

EXPOSE instruction present

100%

100%

WORKDIR set

100%

100%

100%

12%

Python Web App CI/CD Pipeline

Criteria
Without context
With context

Separate jobs or stages for lint, test, and deploy

100%

100%

Deploy depends on test passing

100%

100%

Dependency caching

0%

100%

Secrets not hardcoded

100%

100%

Deploy only on main branch

100%

100%

Lint and type-check as gates

100%

100%

Python version specified

100%

100%

Uses actions/checkout

100%

100%

Dependencies installed via requirements.txt

100%

100%

Correct trigger configuration

100%

100%

Evaluated
Agent
Claude Code
Model
Claude Sonnet 4.6

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