Building Bulletproof IoT OTA Pipelines

A single failed update can brick your entire fleet and destroy customer trust.

The only acceptable posture is autonomous recovery. Signed artifacts and deterministic rollbacks are

mandatory. Sign every artifact with an HSM. The boot path must verify signatures

before executing any code. Use A/B slots. If the new image fails health

checks, the bootloader must fall back automatically. Deploy in rings. Use canary groups

and automated abort criteria to stop failures before they scale. Design for recoverability

first. Build a pipeline that heals itself, so you don't have to.