/ Go Engineering / Phase 10 Phase Goal Containerize, run, secure, and deploy a Go service with PostgreSQL and Redis.
Day 46: Containers, Images & Docker from Scratch
Process isolation mental model
Images, layers, registries, and containers Define Images, layers, registries, and containers in plain language and explain the problem it solves Trace what the Go compiler or runtime does when Images, layers, registries, and containers is used Write a tiny example, then apply it to a realistic backend task Diagnose the beginner failure mode for Images, layers, registries, and containers and fix it deliberately
Dockerfile instructions and build context
Ports, filesystems, environment, and lifecycle commands Define Ports, filesystems, environment, and lifecycle commands in plain language and explain the problem it solves Trace what the Go compiler or runtime does when Ports, filesystems, environment, and lifecycle commands is used Write a tiny example, then apply it to a realistic backend task Diagnose the beginner failure mode for Ports, filesystems, environment, and lifecycle commands and fix it deliberately
Day 47: Production Go Dockerfiles
Multi-stage build with official Go image
go mod download cache ordering
CGO decisions and minimal runtime images
Non-root user, healthcheck, signals, and image inspection Define Non-root user, healthcheck, signals, and image inspection in plain language and explain the problem it solves Trace what the Go compiler or runtime does when Non-root user, healthcheck, signals, and image inspection is used Write a tiny example, then apply it to a realistic backend task Diagnose the beginner failure mode for Non-root user, healthcheck, signals, and image inspection and fix it deliberately
Day 48: Docker Compose Development Stack
Compose services, networks, volumes, and dependencies Define Compose services, networks, volumes, and dependencies in plain language and explain the problem it solves Trace what the Go compiler or runtime does when Compose services, networks, volumes, and dependencies is used Write a tiny example, then apply it to a realistic backend task Diagnose the beginner failure mode for Compose services, networks, volumes, and dependencies and fix it deliberately
Go API plus PostgreSQL and Redis
Health-based readiness versus startup order
Migrations, secrets, logs, and cleanup Define Migrations, secrets, logs, and cleanup in plain language and explain the problem it solves Trace what the Go compiler or runtime does when Migrations, secrets, logs, and cleanup is used Write a tiny example, then apply it to a realistic backend task Diagnose the beginner failure mode for Migrations, secrets, logs, and cleanup and fix it deliberately
Day 49: CI, Registry & Deployment
go test, race, vuln, and image gates Define go test, race, vuln, and image gates in plain language and explain the problem it solves Trace what the Go compiler or runtime does when go test, race, vuln, and image gates is used Write a tiny example, then apply it to a realistic backend task Diagnose the beginner failure mode for go test, race, vuln, and image gates and fix it deliberately
Tagging and pushing immutable images
Environment configuration and secret injection
Deploy, smoke test, rollback, and resource limits Define Deploy, smoke test, rollback, and resource limits in plain language and explain the problem it solves Trace what the Go compiler or runtime does when Deploy, smoke test, rollback, and resource limits is used Write a tiny example, then apply it to a realistic backend task Diagnose the beginner failure mode for Deploy, smoke test, rollback, and resource limits and fix it deliberately
Day 50: Mini Project — Deployed Watershed Operations Stack
Package the telemetry API and alert worker
Compose production-like PostgreSQL and Redis dependencies
CI-built images and registry promotion
Project requirements, constraints & review Define Project requirements, deployment, rollback, recovery drill, and runbook in plain language and explain the problem it solves Trace what the Go compiler or runtime does when Project requirements, deployment, rollback, recovery drill, and runbook is used Write a tiny example, then apply it to a realistic backend task Diagnose the beginner failure mode for Project requirements, deployment, rollback, recovery drill, and runbook and fix it deliberately
Deployed Watershed Operations Stack Package and deploy the telemetry API and worker as separate non-root containers with migrations, health contracts, CI gates, immutable digests, backup restoration, and rollback evidence.
After this phase, you'll be able to:
Process isolation mental model Images, layers, registries, and containers Dockerfile instructions and build context Ports, filesystems, environment, and lifecycle commands Multi-stage build with official Go image go mod download cache ordering CGO decisions and minimal runtime images Non-root user, healthcheck, signals, and image inspection You can apply Phase 10 skills in a finished, explainable Go project.