Pre-configured templates with security best practices
Docker image name (e.g. nginx:alpine)
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Container & DevOps Expertise
From Docker to Kubernetes, our DevOps team containerizes applications and builds secure deployment pipelines.
What Is Docker Command Building
Docker commands manage the lifecycle of containers — building images, running containers, managing networks, and orchestrating multi-container applications. While Docker's CLI is powerful, its extensive options and flags make it easy to misconfigure containers, miss security settings, or create inefficient deployments.
This tool generates correct Docker commands for common operations, including proper security flags, resource limits, networking configuration, and volume management — reducing errors and enforcing best practices.
Essential Docker Commands
| Command | Purpose | Example |
|---|---|---|
| docker build | Build an image from a Dockerfile | docker build -t myapp:1.0 . |
| docker run | Create and start a container | docker run -d -p 8080:3000 myapp:1.0 |
| docker compose up | Start multi-container applications | docker compose up -d |
| docker exec | Run a command in a running container | docker exec -it myapp sh |
| docker logs | View container output | docker logs -f myapp |
| docker ps | List running containers | docker ps -a |
| docker stop/rm | Stop and remove containers | docker stop myapp && docker rm myapp |
| docker images | List local images | docker images --filter dangling=true |
| docker network | Manage container networks | docker network create app-net |
| docker volume | Manage persistent storage | docker volume create db-data |
Common Use Cases
- Application deployment: Generate run commands with correct port mappings, environment variables, volumes, and restart policies for production containers
- Development environments: Create commands for running databases, message queues, and supporting services locally with proper networking
- CI/CD pipelines: Generate build, tag, and push commands for container image CI/CD workflows
- Security hardening: Apply security flags (read-only filesystem, dropped capabilities, non-root user, resource limits) to container run commands
- Troubleshooting: Generate exec and logs commands for debugging running containers
Best Practices
- Always set resource limits — Use --memory and --cpus to prevent containers from consuming all host resources. Without limits, a single runaway container can crash the host.
- Run as non-root — Use --user to run containers as a non-root user. Most containerized applications do not need root privileges.
- Use read-only filesystems — Add --read-only to prevent containers from writing to their filesystem. Mount writable volumes only where explicitly needed.
- Drop unnecessary capabilities — Use --cap-drop ALL --cap-add to grant only the specific Linux capabilities your application needs, following the principle of least privilege.
- Use named volumes for persistence — Named volumes (docker volume create) are managed by Docker and survive container recreation. Bind mounts are harder to manage and back up.
- Always tag images explicitly — Never use :latest in production. Tag images with version numbers or git commit hashes for reproducible deployments.
ℹ️ Disclaimer
This tool is provided for informational and educational purposes only. All processing happens entirely in your browser - no data is sent to or stored on our servers. While we strive for accuracy, we make no warranties about the completeness or reliability of results. Use at your own discretion.