HWLAB Code Queue
122 lines
4.9 KiB
Markdown
122 lines
4.9 KiB
Markdown
# HWLAB DEV Base Image Preflight
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This preflight is the lightweight builder gate for DEV artifact publish work. It
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checks whether the D601 builder has an approved local base image before any
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artifact publish attempt claims readiness.
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The command is local-only. It does not pull, build, push, deploy, contact DEV or
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PROD, read secrets, or use UniDesk runtime services as substitutes.
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## Current Repository Constraints
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- No repository Dockerfile is present in the DEV skeleton.
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- `deploy/deploy.json` and `deploy/artifact-catalog.dev.json` pin service image
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names to the DEV registry target, by default
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`127.0.0.1:5000/hwlab/<hwlab-service-id>:<commit>`.
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- The artifact catalog is `contract-skeleton` only. Service entries must keep
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`publishState: "skeleton-only"` and `digest: "not_published"` until real
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publish evidence exists.
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- The catalog and runtime boundary forbid PROD deployment, secret reads, force
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push, real publish claims, and UniDesk runtime substitution.
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- A builder base image is separate from HWLAB service artifact images. This
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preflight only decides whether #35 may proceed to build/publish; it does not
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prove that any service image was published.
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## Command
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```sh
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npm run --silent dev-base-image:preflight
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```
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Equivalent direct command:
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```sh
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node scripts/preflight-dev-base-image.mjs
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```
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The direct command always prints JSON. Use `npm run --silent` when npm is the
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entry point and the output needs to be machine parsed. Exit code `0` means
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`status: "ready"` and the base image can be used by #35 DEV artifact publish.
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Exit code `2` means `status: "blocked"` and artifact publish must stop.
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## Image Selection
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Selection order is intentionally narrow:
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1. If `HWLAB_DEV_BASE_IMAGE` is set, it must name an approved image that already
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exists in the local Docker image cache.
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2. If `HWLAB_DEV_BASE_IMAGE` is not set, the preflight looks for local
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`node:20-*` images and selects the first deterministic local tag.
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3. If no `node:20-*` tag exists, the preflight also accepts a local HWLAB base
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tag such as `127.0.0.1:5000/hwlab/hwlab-dev-base:node20-bookworm-slim`.
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4. If neither source is available, the result is a blocker.
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Explicit base image values must match local `node:20-*`, `hwlab-dev-base:*`, or
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`hwlab-node20-base:*` references. They must not reference UniDesk, Code Queue,
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`backend-core`, `provider-gateway`, `microservice-proxy`, or an HWLAB runtime
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service image. A service image such as
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`127.0.0.1:5000/hwlab/hwlab-cloud-api:<sha>` is an artifact output, not a
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builder base image.
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The recommended D601 preload source is `node:20-bookworm-slim`. The recommended
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HWLAB-specific local tag is:
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```sh
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127.0.0.1:5000/hwlab/hwlab-dev-base:node20-bookworm-slim
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```
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## Output Contract
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Important fields:
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| Field | Meaning |
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| --- | --- |
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| `status` | `ready` or `blocked`. |
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| `imageSource` | `env:HWLAB_DEV_BASE_IMAGE`, `local-docker-node:20-*`, or `none`. |
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| `requestedImage` | The explicit environment value, when present. |
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| `localTag` | Local Docker tag selected for the builder base image. |
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| `imageId` | Local Docker image ID from `docker image inspect`. |
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| `candidates` | Approved local builder base images found in Docker. |
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| `rejectedCandidates` | Near misses such as local non-Node-20 Node images. |
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| `publishUsable` | Boolean gate for #35 artifact publish. |
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| `blockers` | Deterministic reasons artifact publish must stop. |
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| `nextSteps` | Operational fixes that do not require secret reads or runtime substitution. |
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| `recommendation` | Machine-readable recommended source, env var, and base image tags. |
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| `provision` | Copy-pasteable online, HWLAB-tag, offline import, and dry-run commands. |
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| `blockedReport` | Minimal machine-readable blocked report: exact blocker, expected tag, env value, and next preload command. |
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## Blocker Handling
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When blocked, preload or build an approved DEV builder base image into the D601
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Docker cache, set `HWLAB_DEV_BASE_IMAGE` to the exact local tag if it is not a
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`node:20-*` tag, and rerun the preflight. Do not claim artifact publish success
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until the preflight returns `status: "ready"`.
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Online D601 preload:
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```sh
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docker pull node:20-bookworm-slim
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HWLAB_DEV_BASE_IMAGE=node:20-bookworm-slim node scripts/preflight-dev-base-image.mjs
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```
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Optional HWLAB-local tag provision:
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```sh
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docker pull node:20-bookworm-slim
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docker tag node:20-bookworm-slim 127.0.0.1:5000/hwlab/hwlab-dev-base:node20-bookworm-slim
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HWLAB_DEV_BASE_IMAGE=127.0.0.1:5000/hwlab/hwlab-dev-base:node20-bookworm-slim node scripts/preflight-dev-base-image.mjs
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```
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Offline preload path when D601 cannot pull directly:
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```sh
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docker pull node:20-bookworm-slim
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docker save node:20-bookworm-slim -o hwlab-node20-bookworm-slim.tar
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docker load -i hwlab-node20-bookworm-slim.tar
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HWLAB_DEV_BASE_IMAGE=node:20-bookworm-slim node scripts/preflight-dev-base-image.mjs
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```
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The preflight may use UniDesk and Code Queue as scheduling infrastructure only.
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It must not use their runtime images as HWLAB service images or builder base
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image substitutes.
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