Docker Production Issues

# Production Incident Response Runbook

## 1. Assess Impact
- How many containers affected?
- Is critical functionality impacted?
- Are downstream services affected?

## 2. Gather Information
# Check all container states
docker ps -a

# Check Docker daemon logs
journalctl -u docker.service --since "10 minutes ago"

# Check container resource usage
docker stats --no-stream

# Inspect container details
docker inspect <container>

# Review recent changes
docker events --since "30m"

## 3. Immediate Actions
# Restart failed container
docker restart <container>

# Scale up healthy instances
docker compose up -d --scale service=N

# Roll back to previous version
docker service rollback <service>

## 4. Root Cause Analysis
# Check container logs
docker logs --since "1h" <container>

# Check application metrics
docker exec <container> top

# Capture container state
docker commit <container> debug-image

## 5. Communication
- Update incident status
- Document timeline
- Notify stakeholders