DevOps & Deployment Skill

Comprehensive frameworks for CI/CD pipelines, containerization, deployment strategies, and infrastructure automation.

Overview

• Setting up CI/CD pipelines
• Containerizing applications
• Deploying to Kubernetes or cloud platforms
• Implementing GitOps workflows
• Managing infrastructure as code
• Planning release strategies

Pipeline Architecture

┌─────────────┐   ┌─────────────┐   ┌─────────────┐   ┌─────────────┐
│    Code     │──>│    Build    │──>│    Test     │──>│   Deploy    │
│   Commit    │   │   & Lint    │   │   & Scan    │   │  & Release  │
└─────────────┘   └─────────────┘   └─────────────┘   └─────────────┘
       │                 │                 │                 │
       v                 v                 v                 v
   Triggers         Artifacts          Reports          Monitoring

Key Concepts

CI/CD Pipeline Stages

1. Lint & Type Check - Code quality gates
2. Unit Tests - Test coverage with reporting
3. Security Scan - npm audit + Trivy vulnerability scanner
4. Build & Push - Docker image to container registry
5. Deploy Staging - Environment-gated deployment
6. Deploy Production - Manual approval or automated

Container Best Practices

Multi-stage builds minimize image size:

• Stage 1: Install production dependencies only
• Stage 2: Build application with dev dependencies
• Stage 3: Production runtime with minimal footprint

Security hardening:

• Non-root user (uid 1001)
• Read-only filesystem where possible
• Health checks for orchestrator integration

Kubernetes Deployment

Essential manifests:

• Deployment with rolling update strategy
• Service for internal routing
• Ingress for external access with TLS
• HorizontalPodAutoscaler for scaling

Security context:

• runAsNonRoot: true
• allowPrivilegeEscalation: false
• readOnlyRootFilesystem: true
• Drop all capabilities

Deployment Strategies

Strategy	Use Case	Risk
Rolling	Default, gradual replacement	Low - automatic rollback
Blue-Green	Instant switch, easy rollback	Medium - double resources
Canary	Progressive traffic shift	Low - gradual exposure

Rolling Update (Kubernetes default):

strategy:
  type: RollingUpdate
  rollingUpdate:
    maxSurge: 25%
    maxUnavailable: 0  # Zero downtime

Secrets Management

Use External Secrets Operator to sync from cloud providers:

• AWS Secrets Manager
• HashiCorp Vault
• Azure Key Vault
• GCP Secret Manager

---

References

Docker Patterns

See: references/docker-patterns.md

Key topics covered:

• Multi-stage build examples with 78% size reduction
• Layer caching optimization
• Security hardening (non-root, health checks)
• Trivy vulnerability scanning
• Docker Compose development setup

CI/CD Pipelines

See: references/ci-cd-pipelines.md

Key topics covered:

• Branch strategy (Git Flow)
• GitHub Actions caching (85% time savings)
• Artifact management
• Matrix testing
• Complete backend CI/CD example

Kubernetes Basics

See: references/kubernetes-basics.md

Key topics covered:

• Health probes (startup, liveness, readiness)
• Security context configuration
• PodDisruptionBudget
• Resource quotas
• StatefulSets for databases
• Helm chart structure

Environment Management

See: references/environment-management.md

Key topics covered:

• External Secrets Operator
• GitOps with ArgoCD
• Terraform patterns (remote state, modules)
• Zero-downtime database migrations
• Alembic migration workflow
• Rollback procedures

Observability

See: references/observability.md

Key topics covered:

• Prometheus metrics exposition
• Grafana dashboard queries (PromQL)
• Alerting rules for SLOs
• Golden signals (SRE)
• Structured logging
• Distributed tracing (OpenTelemetry)

Railway Deployment

See: rules/railway-deployment.md

Key topics covered:

• railway.json configuration, Nixpacks builds
• Environment variable management, database provisioning
• Multi-service setups, Railway CLI workflows
• References: references/railway-json-config.md, references/nixpacks-customization.md, references/multi-service-setup.md

Deployment Strategies

See: references/deployment-strategies.md

Key topics covered:

• Rolling deployment
• Blue-green deployment
• Canary releases
• Traffic splitting with Istio

---

Deployment Checklist

Pre-Deployment

• All tests passing in CI
• Security scans clean
• Database migrations ready
• Rollback plan documented

During Deployment

• Monitor deployment progress
• Watch error rates
• Verify health checks passing

Post-Deployment

• Verify metrics normal
• Check logs for errors
• Update status page

---

Helm Chart Structure

charts/app/
├── Chart.yaml
├── values.yaml
├── scripts/
│   ├── deployment.yaml
│   ├── service.yaml
│   ├── ingress.yaml
│   ├── configmap.yaml
│   ├── secret.yaml
│   ├── hpa.yaml
│   └── _helpers.tpl
└── values/
    ├── staging.yaml
    └── production.yaml

---

Related Skills

• zero-downtime-migration - Database migration patterns for zero-downtime deployments
• security-scanning - Security scanning integration for CI/CD pipelines
• ork:monitoring-observability - Monitoring and alerting for deployed applications
• ork:database-patterns - Python/Alembic migration workflow for backend deployments

Key Decisions

Decision	Choice	Rationale
Container user	Non-root (uid 1001)	Security best practice, required by many orchestrators
Deployment strategy	Rolling update (default)	Zero downtime, automatic rollback, resource efficient
Secrets management	External Secrets Operator	Syncs from cloud providers, GitOps compatible
Health checks	Separate startup/liveness/readiness	Prevents premature traffic, enables graceful shutdown

---

Extended Thinking Triggers

Use Opus 4.6 adaptive thinking for:

• Architecture decisions - Kubernetes vs serverless, multi-region setup
• Migration planning - Moving between cloud providers
• Incident response - Complex deployment failures
• Security design - Zero-trust architecture

---

Templates Reference

Template	Purpose
github-actions-pipeline.yml	Full CI/CD workflow with 6 stages
Dockerfile	Multi-stage Node.js build
docker-compose.yml	Development environment
k8s-manifests.yaml	Deployment, Service, Ingress
helm-values.yaml	Helm chart values
terraform-aws.tf	VPC, EKS, RDS infrastructure
argocd-application.yaml	GitOps application
external-secrets.yaml	Secrets Manager integration

---

Capability Details

ci-cd

Keywords: ci, cd, pipeline, github actions, gitlab ci, jenkins, workflow
Solves:

• How do I set up CI/CD?
• GitHub Actions workflow patterns
• Pipeline caching strategies
• Matrix testing setup

docker

Keywords: docker, dockerfile, container, image, build, compose, multi-stage
Solves:

• How do I containerize my app?
• Multi-stage Dockerfile best practices
• Docker Compose development setup
• Container security hardening

kubernetes

Keywords: kubernetes, k8s, deployment, service, ingress, helm, statefulset, pdb
Solves:

• How do I deploy to Kubernetes?
• K8s health probes and resource limits
• Helm chart structure
• StatefulSet for databases

infrastructure-as-code

Keywords: terraform, pulumi, iac, infrastructure, provision, gitops, argocd
Solves:

• How do I set up infrastructure as code?
• Terraform AWS patterns (VPC, EKS, RDS)
• GitOps with ArgoCD
• Secrets management patterns

deployment-strategies

Keywords: blue green, canary, rolling, deployment strategy, rollback, zero downtime
Solves:

• Which deployment strategy should I use?
• Zero-downtime database migrations
• Blue-green deployment setup
• Canary release with traffic splitting

observability

Keywords: prometheus, grafana, metrics, alerting, monitoring, health check
Solves:

• How do I add monitoring to my app?
• Prometheus metrics exposition
• Grafana dashboard queries
• Alerting rules for SLOs