Stage 3 · Build
Go for SRE
Building production tools, automation, Kubernetes controllers, and exporters in Go.
9 modules54 lessons6.3h of reading54/54 live today
Prerequisite
Go basics + Linux.
What this course leaves you with
- Build production CLIs, exporters, and controllers
- Ship static binaries anywhere
- Write correct concurrent code with confidence
GoKubernetesAutomationCLI Tools
Why this stage matters — Your software works — now understand the databases it writes to.
Progress
0 of 54 lessons complete. Progress is stored locally in your browser so you can pick the path back up later.
0%
course completion
01
6 lessons
Go Fundamentals for SREs
The language features that matter for infrastructure code.
- 01Why Go for InfrastructureCompilation, deployment, concurrency, and the standard library.5 min
- 02Project Layout & ModulesGo modules, internal packages, and CLI project structure.6 min
- 03Error Handling PatternsSentinel errors, wrapping, fmt.Errorf, and error inspection.7 min
- 04Testing & BenchmarkingTable-driven tests, testify, benchmarks, and fuzzing.7 min
- 05Profiling & Optimizationpprof, trace, escape analysis, and allocation profiling.7 min
- 06CI/CD for Go ProjectsGoReleaser, golangci-lint, and multi-arch releases.6 min
02
6 lessons
Building CLI Tools
Cobra, Viper, and creating delightful command-line experiences.
- 01Cobra BasicsCommands, flags, subcommands, and auto-completion.7 min
- 02Viper for ConfigurationEnv vars, config files, remote config, and pflag binding.6 min
- 03Interactive CLIspromptui, survey, bubbletea for TUIs.7 min
- 04Output FormatsTable, JSON, YAML, and templating with Go templates.6 min
- 05Plugin ArchitectureHashiCorp go-plugin, Yaegi, and dynamic loading.7 min
- 06Distribution & InstallationHomebrew, Scoop, apt/yum repos, and curl | bash installers.5 min
03
6 lessons
Kubernetes Controllers in Go
Controller-runtime, operator-sdk, and building custom controllers.
- 01The Controller PatternReconcile loop, informers, workqueues, and finalizers.8 min
- 02Controller-runtime Deep DiveManager, client, cache, and builder API.8 min
- 03CRD DesignValidation, conversion, subresources, and printer columns.7 min
- 04Admission WebhooksMutating/validating webhooks, cert-manager, and CEL.7 min
- 05Operator SDK & Ansible/HelmScaffolding, bundle, and OLM integration.6 min
- 06Testing Controllersenvtest, ginkgo, and integration testing with kind.7 min
04
6 lessons
Observability & Networking
Prometheus exporters, gRPC, and production-ready services.
- 01Writing Prometheus ExportersCollector pattern, metrics types, and the promhttp package.7 min
- 02OpenTelemetry GoTracing, metrics, logs — the OTel SDK and auto-instrumentation.8 min
- 03gRPC & ProtobufUnary/streaming, interceptors, reflection, and grpcurl.7 min
- 04Production HTTP ServersGraceful shutdown, timeouts, middleware, and httprouter.6 min
- 05Advanced Concurrencyerrgroup, semaphore, worker pools, and pipeline patterns.7 min
- 06Production HardeningHealth checks, readiness, structured logging, and config validation.6 min
05
6 lessons
Concurrency in Depth
Building predictable concurrent Go programs with cancellation, synchronization, and tests.
- 01Goroutine LifecycleSpawn costs, leaks, ownership, and detecting blocked goroutines with stack dumps.7 min
- 02Channel PatternsFan-in, fan-out, pipelines, buffered channels, and closing protocols.8 min
- 03select, Timeouts & Tickersselect fairness, time.After pitfalls, ticker cleanup, and non-blocking operations.7 min
- 04Context CancellationDeadlines, cancellation trees, request-scoped values, and signal-aware shutdown.7 min
- 05sync PrimitivesMutex, RWMutex, Cond, Once, Pool, atomic, and when channels are the wrong tool.8 min
- 06Race Detector & Worker Poolsgo test -race, bounded workers, backpressure, and errgroup coordination.8 min
06
6 lessons
Performance, Memory & Debugging
Diagnosing production Go services with compiler, runtime, profiler, and debugger tools.
- 01Escape AnalysisUsing go build -gcflags=-m to understand heap allocation and inlining decisions.7 min
- 02GC TuningGOGC, GOMEMLIMIT, heap goals, pacer behavior, and latency tradeoffs.8 min
- 03pprof & runtime/traceCPU, heap, mutex, block profiles, execution traces, and flame graph workflows.8 min
- 04Delve DebuggingBreakpoints, goroutine inspection, core dumps, and remote debugging with dlv.7 min
- 05GODEBUG Runtime Flagsgctrace, schedtrace, http2debug, netdns, and reading runtime diagnostics.6 min
- 06Production Benchmarkingbenchstat, realistic fixtures, shadow traffic, and safe profiling in live services.7 min
07
6 lessons
Standard Library for Operations
Using core Go packages to build dependable automation without heavy dependencies.
- 01Filesystem with osos.ReadFile, os.Stat, os.MkdirAll, file modes, temp files, and atomic rename patterns.7 min
- 02Command Executionos/exec contexts, stdout/stderr capture, exit status handling, and safe argument passing.8 min
- 03Streaming I/Oio.Reader, io.Writer, bufio.Scanner limits, io.Pipe, and copying large outputs safely.7 min
- 04HTTP Clientsnet/http clients, timeouts, transports, retries, and request tracing with httptrace.8 min
- 05Encoding & Configencoding/json, yaml adapters, csv parsing, base64, and strict schema decoding.6 min
- 06Time & Timerstime.Duration, monotonic clocks, timers, tickers, and deadline calculations.6 min
08
6 lessons
Long-Running Daemons & Services
Building Go processes that start, reload, drain, and stop predictably.
- 01Signal Handlingos/signal, SIGTERM, SIGINT, SIGHUP, context cancellation, and shutdown deadlines.7 min
- 02Graceful HTTP Shutdownhttp.Server Shutdown, connection draining, readiness flips, and Kubernetes terminationGracePeriodSeconds.8 min
- 03Configuration LoadingEnvironment variables, config files, validation, defaults, and live reload boundaries.7 min
- 04Structured Logging with slogslog handlers, attributes, log levels, request IDs, and JSON logs for collectors.7 min
- 05Supervisor Integrationsystemd NotifyAccess, Docker healthchecks, PID 1 behavior, and exit code contracts.6 min
- 06Background Workerserrgroup, bounded queues, backoff, jitter, and draining worker pools safely.8 min
09
6 lessons
Metrics, Health & Profiling
Exposing operational signals and debugging endpoints for production Go binaries.
- 01Prometheus client_golangCounters, gauges, histograms, registries, labels, and promhttp handlers.8 min
- 02Custom ExportersCollector implementations, scrape errors, const metrics, and cardinality controls.7 min
- 03Health & Readiness Endpoints/healthz, /readyz, dependency checks, startup probes, and degraded states.7 min
- 04pprof Endpointsnet/http/pprof, CPU profiles, heap profiles, block profiles, and secured debug listeners.7 min
- 05Benchmark Analysisgo test -bench, benchstat, allocation counts, and isolating noisy measurements.7 min
- 06Goroutine Leak Detectionruntime.NumGoroutine, goleak, stack dumps, context leaks, and blocked channel diagnostics.8 min