NexoVersionCompat
:::tip Reconciled
The selected Operator registers this Kind. Runtime effect still requires a valid reference from the owning Proxy graph and a compatible runtime component.
:::
This page documents the 0.2.0 Private Preview. Schema acceptance, Operator reconciliation, and runtime enforcement are separate claims; the status above is authoritative.
API identity
| Property | Value |
|---|---|
| Kind | NexoVersionCompat |
| API group | nexo.io |
| Version | v1alpha1 |
| Resource | nexoversioncompats |
| Short name | nvc |
| Scope | Namespaced |
| Operator support | Reconciled |
Purpose and relationships
Configures MongoDB wire-version compatibility checks and optional compatibility behavior.
It has runtime effect only when a NexoPipeline referenced by a NexoProxy includes this object in a compatible phase and the selected Operator/runtime bundle supports the contract.
Spec field reference
The table is derived from the installed Nexo Edge CRD OpenAPI schema. “Not declared” means the schema publishes no default. A missing schema description is reported explicitly rather than inferred from implementation.
| Field | Type | Required | Default | Schema description |
|---|---|---|---|---|
spec.minWireVersion | integer (int32) | No | Not declared | No description is declared in the CRD schema. |
spec.maxWireVersion | integer (int32) | No | Not declared | No description is declared in the CRD schema. |
spec.blockUnsupported | boolean | No | Not declared | No description is declared in the CRD schema. |
spec.reportOnly | boolean | No | Not declared | No description is declared in the CRD schema. |
spec.clientVersions | array<string> | No | Not declared | No description is declared in the CRD schema. |
spec.serverVersions | array<string> | No | Not declared | No description is declared in the CRD schema. |
spec.patchBuildInfo | boolean | No | Not declared | No description is declared in the CRD schema. |
spec.strictMode | boolean | No | Not declared | No description is declared in the CRD schema. |
spec.featureDetection | boolean | No | Not declared | No description is declared in the CRD schema. |
spec.negotiationLogging | boolean | No | Not declared | No description is declared in the CRD schema. |
spec.commandTranslation | object | No | Not declared | No description is declared in the CRD schema. |
spec.commandTranslation.enabled | boolean | No | Not declared | No description is declared in the CRD schema. |
spec.commandTranslation.translations | object | No | Not declared | No description is declared in the CRD schema. |
spec.clientUpgradeAdvisor | object | No | Not declared | No description is declared in the CRD schema. |
spec.clientUpgradeAdvisor.enabled | boolean | No | Not declared | No description is declared in the CRD schema. |
spec.clientUpgradeAdvisor.minVersion | string | No | Not declared | No description is declared in the CRD schema. |
spec.clientUpgradeAdvisor.warnHeader | boolean | No | Not declared | No description is declared in the CRD schema. |
Status fields and conditions
| Field | Type | Required | Default | Schema description |
|---|---|---|---|---|
status.ready | boolean | No | Not declared | No description is declared in the CRD schema. |
status.observedGeneration | integer (int64) | No | Not declared | No description is declared in the CRD schema. |
status.configHash | string | No | Not declared | No description is declared in the CRD schema. |
status.conditions | array<object> | No | Not declared | No description is declared in the CRD schema. |
status.conditions[].type | string | No | Not declared | No description is declared in the CRD schema. |
status.conditions[].status | string | No | Not declared | No description is declared in the CRD schema. |
status.conditions[].reason | string | No | Not declared | No description is declared in the CRD schema. |
status.conditions[].message | string | No | Not declared | No description is declared in the CRD schema. |
status.conditions[].lastTransitionTime | string (date-time) | No | Not declared | No description is declared in the CRD schema. |
status.conditions[].observedGeneration | integer (int64) | No | Not declared | No description is declared in the CRD schema. |
A Ready or configHash value proves that the Operator accepted/hashed the object; it does not by itself prove runtime execution or policy enforcement.
Reconciliation and watch behavior
The registered controller validates the resource and records status. Data-path changes are applied only when the relevant NexoProxy controller rebuilds or reloads the owning graph.
The Kind has its own status controller, but it is absent from the pinned NexoProxy watch list. After an update, explicitly requeue the owning NexoProxy and verify graphRevision/appliedRevision.
Runtime execution effect
When successfully rendered, the runtime observes or blocks incompatible wire/client/server behavior according to the selected settings.
Example
Use placeholders and validate in a non-production namespace first. For schema-only or ineffective kinds, this example is for schema inspection only and must not be used as evidence of enforcement.
apiVersion: nexo.io/v1alpha1
kind: NexoVersionCompat
metadata:
name: <compat-name>
namespace: <namespace>
spec:
reportOnly: true
Update and reconciliation caveats
- Apply component and pipeline changes before expecting the owning NexoProxy graph to change.
- Check metadata.generation, status.observedGeneration when present, and the owning Proxy graphRevision/appliedRevision after every update.
- A successful kubectl apply proves only schema admission; inspect Operator conditions, generated configuration, rollout state, and runtime behavior separately.
Release-specific limitations
- The API is v1alpha1 and has no conversion webhook or second served version.
- The CRD schema is retained by Helm and can outlive the Operator release that installed it.
- This immutable page describes Nexo Edge 0.2.0 with Operator 008260c and Proxy 7064b41; later behavior must not be inferred.
Inspect with kubectl
kubectl get nexoversioncompats --namespace <namespace>
kubectl describe nexoversioncompats <name> --namespace <namespace>
kubectl get nexoversioncompats <name> --namespace <namespace> -o yaml
kubectl get crd nexoversioncompats.nexo.io -o yaml
For resources participating in a Proxy graph, also inspect:
kubectl get nexoproxy <proxy-name> --namespace <namespace> \
-o jsonpath='{.status.phase}{" graph="}{.status.graphRevision}{" applied="}{.status.appliedRevision}{"\n"}'
kubectl get nexopipeline <pipeline-name> --namespace <namespace> -o yaml