From cargo build to production: CI pipelines, slim Docker images, Linux services and what to watch afterwards.
A Docker build that recompiles every dependency on each code change wastes minutes. cargo-chef splits dependency compilation into its own cached layer. See the Dockerfile and what invalidates it.
Liveness says the process is stuck, readiness says it cannot take traffic yet. Implement both in Axum, decide what each checks and avoid the restart loops a bad probe causes.
Keep credentials out of images, repositories and logs. Compare environment variables, mounted files, systemd credentials and a secret manager, and plan for rotation.
Know whether stdout is a terminal or a pipe, and change behavior: color, progress bars, paging, width and line buffering. Use IsTerminal and NO_COLOR correctly.
Test an Axum API against a real Postgres started by Testcontainers: one container per test binary, one migrated database per test, the leaks and version traps that bite, and measured timings for each isolation strategy.
Load settings from environment variables into a typed struct at startup, fail fast on missing values, give safe defaults for the rest and keep secrets out of logs and Debug output.
Run a Rust binary on a Linux server under systemd: a locked down unit file, a dedicated user, environment files, restart policy, logs through journald and a simple release procedure.
Cache the Cargo registry and target directory in CI with Swatinem/rust-cache. Learn what is cached, the cache key, why caches go stale and how to keep restore times low.
Build SQLx code without a database by saving query metadata in .sqlx with cargo sqlx prepare. Includes the CI check that keeps it fresh and the errors when it is stale.
A GitHub Actions workflow for Rust that formats, lints, tests and builds, with a pinned toolchain, dependency caching, a matrix and the failure modes to avoid.
Version your schema with sqlx migrate: create files, run them at startup or in CI, embed them in the binary and handle the checksum error when a file changes.
A guide to taking a Rust service from cargo build to production: release profile, CI, containers, configuration, secrets, health checks, observability and safe rollouts.
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