Docker Kommandos

generieren

Umfassende Docker-Befehle und Workflows zur Containerisierung auf allen Plattformen.

Grundlegende Befehle

| | Command | Description | | | --- | --- | | | docker --version | Show Docker version | | | | docker info | Display system-wide information | | | | docker help | Show help for Docker commands | | | | docker images | List all images | | | | docker ps | List running containers | | | | docker ps -a | List all containers (running and stopped) | | | | docker pull <image> | Pull an image from registry | | | | docker run <image> | Run a container from image | | | | docker stop <container> | Stop a running container | | | | docker start <container> | Start a stopped container | | | | docker restart <container> | Restart a container | | | | docker rm <container> | Remove a container | | | | docker rmi <image> | Remove an image | |

Containerverwaltung

| | Command | Description | | | --- | --- | | | docker run -d <image> | Run container in detached mode | | | | docker run -it <image> | Run container interactively | | | | docker run -p 8080:80 <image> | Map port 8080 to container port 80 | | | | docker run -v /host:/container <image> | Mount volume | | | | docker run --name <name> <image> | Run container with custom name | | | | docker exec -it <container> bash | Execute bash in running container | | | | docker logs <container> | View container logs | | | | docker logs -f <container> | Follow container logs | | | | docker inspect <container> | Inspect container details | | | | docker stats | Show container resource usage | | | | docker top <container> | Show running processes in container | |

Image Management

| | Command | Description | | | --- | --- | | | docker build -t <name> . | Build image from Dockerfile | | | | docker build -t <name>:<tag> . | Build image with tag | | | | docker tag <image> <new-name> | Tag an image | | | | docker push <image> | Push image to registry | | | | docker save <image> > file.tar | Save image to tar file | | | | docker load < file.tar | Load image from tar file | | | | docker history <image> | Show image history | | | | docker search <term> | Search for images in registry | |

Docker komponiert

| | Command | Description | | | --- | --- | | | docker-compose up | Start services defined in compose file | | | | docker-compose up -d | Start services in detached mode | | | | docker-compose down | Stop and remove containers | | | | docker-compose build | Build or rebuild services | | | | docker-compose logs | View logs for all services | | | | docker-compose ps | List containers | | | | docker-compose exec <service> bash | Execute command in service | | | | docker-compose pull | Pull latest images | | | | docker-compose restart | Restart services | |

Netzwerkmanagement

| | Command | Description | | | --- | --- | | | docker network ls | List networks | | | | docker network create <name> | Create a network | | | | docker network rm <name> | Remove a network | | | | docker network inspect <name> | Inspect network details | | | | docker run --network <name> <image> | Run container on specific network | |

Finanzmanagement

| | Command | Description | | | --- | --- | | | docker volume ls | List volumes | | | | docker volume create <name> | Create a volume | | | | docker volume rm <name> | Remove a volume | | | | docker volume inspect <name> | Inspect volume details | | | | docker volume prune | Remove unused volumes | |

Gemeinsame Workflows

Entwicklungs-Workflow

```bash

Build and run application

docker build -t myapp . docker run -p 3000:3000 myapp

Development with volume mounting

docker run -p 3000:3000 -v $(pwd):/app myapp

Using Docker Compose for development

docker-compose up --build ```_

Produktionsentwicklung

```bash

Build production image

docker build -t myapp:prod .

Tag for registry

docker tag myapp:prod registry.com/myapp:latest

Push to registry

docker push registry.com/myapp:latest

Deploy on production server

docker pull registry.com/myapp:latest docker run -d -p 80:3000 --name myapp-prod registry.com/myapp:latest ```_

Container Debugging

```bash

Check container logs

docker logs -f container-name

Execute shell in running container

docker exec -it container-name bash

Inspect container configuration

docker inspect container-name

Check resource usage

docker stats container-name ```_

Best Practices

Dockerfile Optimierung

Verwenden Sie mehrstufige Builds, um die Bildgröße zu reduzieren
Leverage erstellen Cache, indem Sie Anweisungen richtig bestellen
Verwenden Sie spezifische Basisbild-Tags, vermeiden latest_
Minimieren Sie die Anzahl der Schichten
Verwenden Sie .dockerignore, um unnötige Dateien auszuschließen

Sicherheit

Container als nicht-root-Benutzer ausführen
Verwenden Sie offizielle Basisbilder, wenn möglich
Regelmäßig aktualisieren Basisbilder
Scannen von Bildern für Schwachstellen
Begrenzte Containerressourcen (CPU, Speicher)

Leistung

Verwenden Sie entsprechende Basisbilder (alpine für kleinere Größe)
Optimieren der Schichtkaschierung
Verwenden Sie Gesundheitskontrollen für Behälter
Überwachen Sie die Ressourcennutzung von Containern
Verwenden Sie Volumes für persistente Daten

Produktionsentwicklung

Orchestrationswerkzeuge verwenden (Docker Swarm, Kubernetes)
Durchführung einer ordnungsgemäßen Protokollierung und Überwachung
Verwenden Sie Secrets Management für sensible Daten
Automatische Backups einrichten
Implementierung von Rollup-Updates