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feat: Add packaged feature repository support to Feast Operator
Add spec.feastProjectDir.packaged for repositories distributed in feature server images, including staged and direct-use lifecycle modes, canonical path validation, generated CRD artifacts, documentation, and tests.
Integrate the init image override introduced by #6598 with this precedence: services.initImage, packaged.image, RELATED_IMAGE_FEATURE_SERVER, then DefaultImage.
Signed-off-by: Shumin <shumin.zheng@outlook.com>
The repository can be added to a Feast feature-server image with a Dockerfile such as:
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```dockerfile
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FROM quay.io/feastdev/feature-server:latest
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COPY feature_repo/ /opt/feast/feature_repo/
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```
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`featureRepoPath` must be a canonical absolute, non-root path: do not use `.`, `..`,
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repeated separators, or a trailing separator. Put it outside operator-mounted locations
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such as `/feast-data`; a volume mounted there would hide files baked into the image. When
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init containers are enabled, the packaged path also must not equal, contain, or be
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contained by the staged repository path.
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With init containers enabled (the default), each Pod starts in this order:
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1. `feast-init` replaces the operator-managed staged repository with a fresh copy of the
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repository from `packaged.featureRepoPath`. With the default storage configuration,
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for example, it copies `/opt/feast/feature_repo` from the image to
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`/feast-data/<feastProject>/feature_repo`.
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2. In the staged copy only, `feast-init` replaces `feature_store.yaml` (if exists in the
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baked image) with the configuration generated from the FeatureStore resource. The file
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baked into the image is not modified. The Python feature definitions come from the
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packaged repository, while the FeatureStore resource remains authoritative for runtime
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configuration.
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3. When `services.runFeastApplyOnInit` is omitted or `true` (the default), `feast-apply`
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runs `feast apply` from the staged repository using the packaged image. Setting it to
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`false`skips only this step; repository staging still occurs.
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4. The Feast service containers start with the staged repository as their working
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directory.
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The repository baked into the image is therefore the source artifact, while the staged
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repository is the runtime copy used by `feast apply` and the Feast services.
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For a baked repository whose own `feature_store.yaml` must remain authoritative, disable
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init containers:
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```yaml
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services:
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disableInitContainers: true
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```
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In that mode, Feast service containers use `featureRepoPath` directly and neither staging
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nor `feast apply` runs during pod initialization. The Operator does not update the registry,
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so `feast apply` must be handled separately—for example, by CI/CD or a separately managed
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Kubernetes Job or CronJob—whenever the packaged feature definitions change.
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The packaged `image` is optional. When set, it is the default for repository initialization,
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`feast apply`, and Feast services. `services.initImage` takes precedence for the
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`feast-init`and `feast-apply` init containers, while an explicit image on an individual
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service takes precedence for that service. When the packaged image is omitted, the operator
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uses `RELATED_IMAGE_FEATURE_SERVER` or its built-in feature-server image fallback.
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### Full `packaged` field reference
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| Field | Type | Required | Description |
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|-------|------|----------|-------------|
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| `featureRepoPath` | string | yes | Canonical absolute, non-root path to the feature repository in the image; it must not overlap the staged repository path |
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| `image` | string | no | Image containing the repository; defaults to the operator feature-server image |
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---
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## `feast apply` on startup
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By default, when the init container completes (git clone or `feast init`), the operator runs
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By default, when repository initialization completes (git clone, `feast init`, or packaged
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repository staging), the operator runs
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`feast apply`before starting the servers. This registers all feature definitions with the
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registry.
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@@ -175,9 +257,8 @@ services:
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## When `feastProjectDir` is omitted
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If neither `git` nor `init` is set, the operator mounts an empty directory. In this case
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you must supply a `feature_store.yaml` through another mechanism (e.g. a ConfigMap volume
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mount via `services.volumes` + `volumeMounts`).
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If `feastProjectDir` is not set, the operator defaults to `feastProjectDir.init: {}` and
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creates a local template repository.
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---
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@@ -188,3 +269,4 @@ mount via `services.volumes` + `volumeMounts`).
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- [Sample: private git repo with token](https://github.com/feast-dev/feast/blob/stable/infra/feast-operator/config/samples/v1_featurestore_git_token.yaml)
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- [Sample: monorepo with featureRepoPath](https://github.com/feast-dev/feast/blob/stable/infra/feast-operator/config/samples/v1_featurestore_git_repopath.yaml)
Copy file name to clipboardExpand all lines: docs/how-to-guides/production-deployment-topologies.md
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@@ -1066,12 +1066,15 @@ Production environments in regulated industries (finance, government, defense) o
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### Default init container behavior
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When `feastProjectDir` is set on the FeatureStore CR, the operator creates up to two init containers:
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When `feastProjectDir` is set on the FeatureStore CR, the operator creates up to two init containers unless `services.disableInitContainers` is `true`:
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1. **`feast-init`** — bootstraps the feature repository by running either `git clone` (if `feastProjectDir.git` is set) or `feast init` (if `feastProjectDir.init` is set), then writes the generated `feature_store.yaml` into the repo directory.
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1. **`feast-init`** — bootstraps the feature repository by running `git clone`, `feast init`, or copying a repository from `feastProjectDir.packaged.featureRepoPath`. It then writes the operator-generated `feature_store.yaml` into the initialized repository.
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2. **`feast-apply`** — runs `feast apply` to register feature definitions in the registry. Controlled by `runFeastApplyOnInit` (defaults to `true`). Skipped when `disableInitContainers` is `true`.
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In air-gapped environments, `git clone` will fail because the cluster cannot reach external Git repositories. The solution is to **pre-bake** the feature repository into a custom container image and disable the init containers entirely.
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In air-gapped environments, use `feastProjectDir.packaged` to identify a feature repository baked into an image. The operator supports two lifecycle modes:
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* Keep init containers enabled to refresh shared storage from the image, generate configuration from the FeatureStore CR, and optionally run `feast apply`.
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* Set `services.disableInitContainers: true` to run directly from the baked path and treat its `feature_store.yaml` as authoritative.
1. **Build a custom container image** that bundles the feature repository and all Python dependencies into the Feast base image.
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2. **Push** the image to your internal container registry.
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3. **Set `services.disableInitContainers: true`** on the FeatureStore CR to skip `git clone` / `feast init` and `feast apply`.
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4. **Override the image** on each service using the per-service `image` field.
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3. **Configure `feastProjectDir.packaged`** with the image and the canonical absolute path to the bundled repository. Do not use `.`, `..`, repeated separators, or a trailing separator, and keep the path outside operator-mounted locations such as `/feast-data` so it cannot overlap the staged repository.
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4. **Choose the lifecycle:** leave init containers enabled for operator-managed configuration and `feast apply`, or set `services.disableInitContainers: true` to use the baked repository and configuration directly.
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5. **Set `imagePullPolicy: IfNotPresent`** (or `Never` if images are pre-loaded on nodes).
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6. **Configure `imagePullSecrets`** on the namespace's ServiceAccount — the FeatureStore CRD does not expose an `imagePullSecrets` field, so use the standard Kubernetes approach of attaching secrets to the ServiceAccount that the pods run under.
Copy file name to clipboardExpand all lines: infra/feast-operator/README.md
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| Guide | Topic |
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|-------|-------|
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|[1 — Project Provisioning](https://docs.feast.dev/how-to-guides/feast-operator/01-project-provisioning)|`feastProjectDir`: git clone vs `feast init` templates|
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|[1 — Project Provisioning](https://docs.feast.dev/how-to-guides/feast-operator/01-project-provisioning)|`feastProjectDir`: git clone, `feast init`, or a repository packaged in an image|
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|[2 — Persistence](https://docs.feast.dev/how-to-guides/feast-operator/02-persistence)| File (path + PVC) vs DB store for offline/online/registry; Secret format |
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