3h ago · 2 min read · Kubernetes NetworkPolicy — the gotcha that breaks everything if you miss it. Always include DNS in egress rules egress: - ports: - protocol: UDP port: 53 - protocol: TCP port: 53 # MUST include this or pod DNS resolut...
Join discussion3h ago · 1 min read · AWS CDK patterns that actually save time vs writing CloudFormation YAML. L3 pattern: VPC + ALB + ECS Fargate in ~20 lines const service = new ecs_patterns.ApplicationLoadBalancedFargateService(this, 'AppService', { cluster, cpu: 256, memoryLimi...
Join discussion4h ago · 1 min read · Kubernetes Gateway API is GA (v1) since K8s 1.28. Here's why it's replacing Ingress. Traffic splitting is first-class (no annotation hacks) rules: - matches: - path: {type: PathPrefix, value: /api} backendRefs: - name: api-service-s...
Join discussion4h ago · 2 min read · Pulumi patterns for teams comfortable with TypeScript but not HCL. Why Pulumi over Terraform (and when not to) Real for loops, real conditionals, real functions. No count hacks, no for_each maps with ternary operators. Your IDE works. Types work. Uni...
Join discussion4h ago · 1 min read · NGINX Ingress Controller annotation patterns I keep referencing. Path rewrite (strip /api prefix) annotations: nginx.ingress.kubernetes.io/rewrite-target: /$2 paths: - path: /api(/|$)(.*) # $2 = everything after /api pathType: Implementati...
Join discussion4h ago · 2 min read · Rust concepts and patterns that took me a while to internalize. Ownership in one page let s1 = String::from("hello"); let s2 = s1; // MOVE — s1 is now invalid let s3 = s2.clone(); // COPY — both valid (explicit, shows it costs something) f...
Join discussion4h ago · 2 min read · Docker Compose patterns for local dev and small deployments. depends_on with health check (not just started) depends_on: db: condition: service_healthy # waits until healthcheck passes Without condition: service_healthy, Compose starts your ...
Join discussion4h ago · 2 min read · Go modules patterns I keep coming back to. go mod tidy — run it more than you think go mod tidy Run after adding any import, removing any import, or before committing. It removes unused deps, adds missing transitive deps, and keeps go.sum consistent...
Join discussion4h ago · 2 min read · Argo Events patterns — the event-driven glue that wires external signals into Argo Workflows. The pipeline: EventSource → EventBus → Sensor → Trigger GitHub webhook → EventSource → NATS EventBus → Sensor (filter) → Argo Workflow trigger Three YAML fi...
Join discussion4h ago · 2 min read · OpenCost patterns for understanding where your Kubernetes spend actually goes. The question it answers "How much does the production namespace cost this week? Which deployment is burning the most?" kubectl port-forward -n opencost svc/opencost 9003 ...
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