Kubeblocks Engine Qdrant

Qdrant Engine Entry

Use this as the primary create-time entry for Qdrant. Tier-1 Qdrant never falls back to kubeblocks-engine-generic.

Cold-Start Contract

• Run kubeblocks-preflight whenever the environment is not already profiled.
• Treat engine-create-matrix as the create-time truth for topology, version strategy, sizing, validation, next hops, and forbidden routes.
• Use observability-capability-matrix before promising scrape readiness.
• Keep the legacy kubeblocks-addon-qdrant path as preserved detail only, not as the primary cold-start route.

Topology Selection

• Default topology: cluster
• cluster: the only supported Tier-1 create shape in the current truth; use it even for small environments by reducing replica count instead of inventing a separate single-node route.
• If the user only wants a local demo, keep the cluster tiny, but do not leave the matrix-backed cluster shape.

ServiceVersion / Version Strategy

• Strategy: use the stable addon default from current examples unless the user explicitly pins a serviceVersion
• Current addon evidence surfaces Qdrant 1.5, 1.7, 1.8, and 1.10, with create examples anchored on the shipped addon defaults.
• If the user asks for "latest", stay on an addon-backed supported line rather than a raw upstream tag.

Preflight Interpretation

• storage_class: required before apply because Qdrant data lives on PVCs.
• volume_binding_mode: confirm placement behavior before multi-replica cluster rollout.
• addon_readiness: Qdrant addon must be installed first.
• Qdrant is scrape-ready in the current observability truth; do not promise dashboards or alerts by default.

Sizing Profiles

• demo: a small cluster with minimal replicas and modest PVC sizing.
• production: cluster with explicit capacity headroom for data redistribution during scale or member replacement.
• Keep replica counts odd when possible to reduce Raft coordination risk.

Minimal Create Path

apiVersion: apps.kubeblocks.io/v1
kind: Cluster
metadata:
  name: <cluster>
  namespace: <ns>
spec:
  terminationPolicy: Delete

• Do not leave this skill to read raw addon examples before drafting the manifest.
• Set clusterDef: qdrant and topology: cluster.
• Keep one name: qdrant component and set serviceVersion, replicas: 3, resources, and volumeClaimTemplates directly on that component.
• Validate with kubectl apply --dry-run=server -f <qdrant-cluster.yaml>.
• Apply with kubectl apply -f <qdrant-cluster.yaml>.
• Watch kubectl get cluster <name> -n <ns> -w until the phase is Running.

Connection and Validation

• Supported connection methods: in-cluster service, port-forward, exposed service
• First validation step: kubectl get cluster <name> -n <ns> and wait for Running.
• Default validation: port-forward the API endpoint and check the Qdrant HTTP API before handoff.
• If externally exposed, verify the public endpoint and collection API path before application use.

Next Hops

• Day-2 operations currently route to kubeblocks-op-lifecycle, kubeblocks-op-horizontal-scale, kubeblocks-op-backup, and kubeblocks-observability-router.
• Treat credential and TLS work as engine-specific validation rather than assuming kubeblocks-manage-accounts or kubeblocks-configure-tls are default Qdrant paths.
• Do not send this path to kubeblocks-rebuild-replica; Qdrant recovery should stay on backup, restore, or troubleshoot paths instead.
• Route unhealthy members, rebalance issues, or API failures to kubeblocks-troubleshoot.

Forbidden Routes

• Never route Qdrant create through kubeblocks-engine-generic, kubeblocks-family-vector, kubeblocks-addon-qdrant, or kubeblocks-engine-milvus.
• If the request is really Milvus-style dependency-backed vector search, switch engines before apply.

Evidence Anchors

• Use the evidence anchors below only as optional secondary evidence and parity checks after the manifest is already drafted here. A cold-start runtime should not need these files, but a stronger agent may inspect them when available.
• Current addon evidence: examples/qdrant/cluster.yaml.
• There is no separate legacy reference file for this engine in the current repository snapshot.