Docker Management Skill

docker-management

Docker container and image management including logs, stats, and compose operations. Use when managing Docker containers, debugging container issues, or working with Docker Compose.

majiayu000/claude-skill-registry·0installs663starsDevOps & CI/CD

SKILL.md

Full skill instructions

Docker Management Skill

Version: 1.0.0 Purpose: Docker container and compose management

Triggers

Trigger	Examples
Containers	"list containers", "docker ps", "コンテナ一覧"
Logs	"container logs", "docker logs", "ログ確認"
Debug	"debug container", "container issue", "デバッグ"
Compose	"compose up", "compose status", "Compose起動"

Integrated MCP Tools

Container Operations

Tool	Purpose
`docker_ps`	List containers (running/all)
`docker_images`	List local images
`docker_logs`	Container logs (tail, follow)
`docker_inspect`	Container details (JSON)
`docker_stats`	Resource usage (CPU, memory)
`docker_exec`	Execute command in container
`docker_start`	Start stopped container
`docker_stop`	Stop running container
`docker_restart`	Restart container
`docker_rm`	Remove container

Compose Operations

Tool	Purpose
`compose_ps`	Compose project status
`compose_logs`	Service logs
`compose_up`	Start services
`compose_down`	Stop and remove services

Workflow: Container Debugging

Phase 1: Assessment

Step 1.1: List Containers

Use docker_ps with:
- all: true (include stopped)

Step 1.2: Check Status

Look for:

Exit codes
Restart counts
Health status

Phase 2: Investigation

Step 2.1: View Logs

Use docker_logs with:
- container: Container name/ID
- tail: 100 (last N lines)
- timestamps: true

Step 2.2: Inspect Configuration

Use docker_inspect to check:
- Environment variables
- Mount points
- Network settings
- Health check config

Step 2.3: Resource Usage

Use docker_stats to monitor:
- CPU percentage
- Memory usage
- Network I/O
- Block I/O

Phase 3: Resolution

Step 3.1: Restart Container

Use docker_restart for temporary fix

Step 3.2: Execute Commands

Use docker_exec to run diagnostics inside container:
- command: "sh -c 'ps aux'"
- command: "cat /var/log/app.log"

Workflow: Docker Compose

Step 1: Check Status

Use compose_ps to see all services

Step 2: View Logs

Use compose_logs with:
- service: Specific service name
- tail: 50

Step 3: Service Management

Use compose_up to start services
Use compose_down to stop and clean up

Common Issues

Symptom	Tool	Action
Container exits	docker_logs	Check error messages
High memory	docker_stats	Identify memory leak
Network issues	docker_inspect	Verify network config
Mount failures	docker_inspect	Check volume mounts

Best Practices

✅ GOOD:

Check logs before restarting
Use health checks
Set resource limits
Use named volumes

❌ BAD:

Restart without investigation
Run as root unnecessarily
Store secrets in images
Use latest tag in production

Checklist

Docker daemon running
Container status checked
Logs reviewed
Resource usage normal
Network connectivity OK

Install skill

Copy and run in your terminal

npx -y skills add https://github.com/majiayu000/claude-skill-registry --skill docker-management

View on GitHub

skills/data/docker-management/SKILL.md

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