The `pod` field hashed pod.Name, which differs per replica because of
the ReplicaSet pod-template-hash + 5-char random suffix. With
namespace,pod,image, all replicas of the same Deployment got distinct
hextets even though they were the same workload.
Replace `pod` with `app` — a stable workload identifier derived from
the controller chain:
- Deployment → ReplicaSet → Pod: strip the pod-template-hash suffix
from the RS name (`traefik-789df685f` → `traefik`).
- StatefulSet/DaemonSet/Job → Pod: use controller name as-is.
- Bare pod: pod name.
Image now comes from pod.Spec.Containers[0].Image (the spec'd
reference). 64-hex-char values are treated as sha256 digests and
parsed as before; everything else (image:tag, short SHA) is FNV-1a-64'd
as a string. This makes `traefik:v3.5` deterministic across replicas
without needing the runtime-resolved digest.
Net effect: namespace,app,image yields identical hextets across all
replicas of the same Deployment except the trailing random N nibble.
embed.Values.Pod → App; AllocRequest.Pod kept for log context only,
new App and Image fields drive the embed call. handlers.go computes
both via deriveAppName + podImageRef helpers.
Tests: 7 new TestDeriveAppName_* cases (Deploy/STS/DS/bare/RS-without-
hash/non-controller-owner) + TestPodImageRef. Existing fuzz seeds
updated for the new keyword.
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Core building block for M2 CNI ADD. Pure logic (no netlink), mutex-
serialized, seedable from committed state via MarkInUse. Hooks into
pkg/embed for ip-algo IID derivation.
- resolveEffective() implements the design-doc cidr6/cidr4 annotation
rules: equal→node, supernet→node, subnet→ann, disjoint→error.
First-match-wins across multiple annotation CIDRs.
- allocV6() random IID within the effective CIDR; on ip-algo, defers
to embed.Embed. 16-retry on collision (regenerates IID or N nibble).
- allocV4() linear scan skipping .0 (network), .1 (gateway), .<last>
(broadcast). Smallest supported block: /30 with 1 usable address.
- Deterministic fakeRand in tests covers: intersection matrix, random
IID, embed path, collision→retry, v4 skip-gateway, v4 exhaustion,
dual-stack, release-then-reallocate, family mismatch rejection.
No agent Run-loop integration yet — NewIPAM(nc.Spec.CIDR6, nc.Spec.CIDR4)
will be called from Server.Run once netlink + RPC are in place.
Co-Authored-By: Claude Sonnet 4.6 (1M context) <noreply@anthropic.com>
Donavan Fritz