Docker Container Troubleshooting & Performance Optimization
Debug containers faster—diagnose failures and optimize performance in minutes
What You Can Do
Analyze Docker container logs instantly to identify root causes of failures, crashes, and resource bottlenecks. Get actionable recommendations for resource allocation, network configuration, and architectural improvements that eliminate production issues before they cascade.
Features
Claude identifies stack traces, error patterns, and failure root causes from container logs
Analyzes CPU/memory/disk usage patterns to right-size container limits and requests
Generate optimal health check configurations (startup, liveness, readiness probes)
Pre-built configurations for security, restart policies, and orchestration best practices
Identify bottlenecks in application and container-level metrics
Diagnose port conflicts, DNS issues, overlay network problems, and connectivity failures
Reduce image size, layer analysis, and multi-stage build recommendations
Example Output
Example 1: Container OOM Kill Analysis
Input: "My PostgreSQL container keeps getting OOMKilled. Here are the logs..."
Output:
- Root cause: Process memory limit (256Mi) insufficient for buffer cache
- Current usage: 312Mi (122% of limit)
- Recommendation: Increase memory request to 512Mi, limit to 1Gi
- Config snippet:
resources: {requests: {memory: "512Mi"}, limits: {memory: "1Gi"}} - Timeline: Issue first appeared after 5.2GB dataset import
Example 2: Dockerfile Performance Optimization
Input: "My build takes 15 minutes. Here's my Dockerfile..."
Output:
- Layer analysis: Base image (1.2GB) + dependencies (800MB) + app code (150MB)
- Optimization: Reorder RUN commands, use BuildKit cache mount
- Size reduction: 2.2GB → 380MB (82% reduction)
- Build time: 15min → 2.3min (85% faster)
- Refactored Dockerfile with inline comments and best practices
What's Included
- SKILL.md file with diagnostic workflows and decision trees:
- Container failure troubleshooting checklist (OOM, CrashLoop, ImagePullBackOff, Pending, etc.):
- Resource optimization templates (requests/limits for common services: PostgreSQL, Redis, Node.js, Python, Go):
- Dockerfile analysis and multi-stage build templates:
- Health check configuration templates (Kubernetes probes + Docker HEALTHCHECK):
- Network troubleshooting flowchart and common connectivity patterns:
- Performance baseline metrics collection guide:
- Production hardening security checklist:
Who It's For
- DevOps engineers — Rapidly diagnose container failures in CI/CD pipelines and production
- Platform engineers — Design resource policies and health checks for microservices
- SREs — Troubleshoot multi-container production incidents and optimize infrastructure
- Backend developers — Debug containerized applications locally and optimize Dockerfiles
- Cloud architects — Implement container best practices and production hardening
Best For
- Debugging container crashes and restarts (CrashLoopBackOff, OOMKilled, ImagePullBackOff, Pending)
- Right-sizing CPU/memory requests and limits for containerized workloads
- Optimizing Docker image size and build performance
- Designing health checks and startup probes for reliable container orchestration
- Analyzing container logs for security, performance, and reliability issues
You might also like
Accelerate your beat reporting by organizing research, identifying story angles, discovering sources, and developing narrative frameworks. You can quickly synthesize complex topics, spot emerging trends, and prepare comprehensive story outlines that anchor your reporting. This skill helps you go deeper on your beat with less time spent on research logistics.
by manwithstyle
You can instantly generate engaging captions, story arcs, and pitch-ready copy for your sports photography. Whether you're covering a championship game, developing a photo essay series, or submitting work to media outlets, this skill crafts deadline-ready narratives that showcase your images and hook editors. Transform raw photos into publication-quality coverage with professional storytelling that brings readers into the defining moments of athletic competition.
by manwithstyle
You can design comprehensive Datadog monitoring strategies that transform raw metrics into actionable intelligence. Claude helps you architect dashboards that surface critical insights, configure intelligent alerts that reduce false positives, and build escalation workflows that speed up incident response. The result: measurably lower MTTR and a team that trusts your alerts.
by manwithstyle
You can transform complex datasets into compelling interactive narratives that maintain coherence while inviting exploration. This skill helps you architect data-driven stories where insights unfold naturally through guided discovery points, keeping readers engaged without limiting their agency. Readers navigate your narrative with purpose, uncovering patterns and relationships that would remain hidden in static presentations.
by manwithstyle
Transform breaking news briefs into compelling visual story frameworks that guide photographers toward impactful coverage. You'll receive multiple narrative angles, detailed shot lists organized by scene and purpose, and complete assignment briefs with sourcing guidance. Each output ensures comprehensive emotional and contextual storytelling from first frame to final edit.
by manwithstyle
Systematically analyze your AWS accounts to identify cost optimization opportunities, security gaps, and performance bottlenecks. You'll receive prioritized, actionable recommendations tailored to your architecture, from EC2 right-sizing to unused resource cleanup and security hardening.
by manwithstyle
This skill walks you through a structured data analysis workflow—from initial exploration and claim verification to identifying compelling story angles and building evidence-backed narratives. You'll learn to spot anomalies, validate statistics, and construct defensible arguments that stand up to scrutiny. It's designed for journalists who want to move beyond surface-level data work into serious investigative storytelling.
by manwithstyle
This skill audits your existing Terraform infrastructure, designs production-ready module structures, and creates detailed migration plans with safety checkpoints. You get comprehensive refactoring guidance, dependency analysis, test strategies, and step-by-step migration playbooks that minimize production risk.
by manwithstyle