Containerization has become a cornerstone of modern software deployment. In this technical guide, we'll explore best practices for container design, orchestration strategies, and performance optimization techniques.
Container Design Principles
- Single responsibility per container
- Immutable infrastructure patterns
- Layered build optimizations
- Security hardening techniques
Docker Best Practices
# Dockerfile example
FROM golang:1.21 as builder
WORKDIR /app
COPY . .
RUN CGO_ENABLED=0 go build -o /go/bin/myapp
FROM gcr.io/distroless/static-debian12
COPY --from=builder /go/bin/myapp /usr/local/bin/app
ENTRYPOINT ["/usr/local/bin/app"]
Kubernetes Orchestration
# Deployment example apiVersion: apps/v1 kind: Deployment metadata: name: myapp spec: replicas: 3 selector: matchLabels: app: myapp template: spec: containers: - name: main image: myregistry/myapp:latest ports: - containerPort: 8080 resources: limits: memory: "512Mi" cpu: "500m"
Performance Optimization
CPU Optimization
--resources-cpu 1.5
Set CPU limits using fractional notation for precise resource allocation.
Memory Management
--memory 512Mi
Define memory limits with safety margins to prevent OOM kills.