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fix(agent-zero): use short DNS name to avoid CoreDNS template hijack

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The full FQDN fc-llm-bridge.fc-llm-bridge.svc.cluster.local has 4 dots,
which is less than the pod's ndots:5 threshold. The resolver then
applies every entry in the search list BEFORE falling through to the
bare FQDN, and the CoreDNS 'template iamworkin.lan' catch-all matches
"...svc.cluster.local.iamworkin.lan" and returns Traefik VIP
10.0.56.200. The egress NetworkPolicy blocks that VIP (0.0.0.0/0
EXCEPT 10.0.0.0/8), so curl hangs for 30-134s and returns HTTP 000.

Reference: feedback_coredns_ndots_template_collision memory.

Fix: use "fc-llm-bridge.fc-llm-bridge.svc" (2 dots, still <5 so search
expansion still fires, but the first suffix "...svc.cluster.local"
hits the Kubernetes plugin in CoreDNS and returns the real ClusterIP
10.43.67.125 before the iamworkin.lan template is ever consulted).

Verified: pod-exec curl fc:cheap → HTTP 200 with a real chat.completion
envelope (Ollama/gemma3:4b via bridge).

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
This commit is contained in:
Andrew Stoltz
2026-04-23 10:02:09 -05:00
parent 6cbb5d8792
commit 702a6e4f52
1 changed files with 2 additions and 2 deletions
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4
apps/agent-zero/agent-zero.yaml
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@@ -260,7 +260,7 @@ spec:
# proxy (workstation primary, edge1 fallback).
mkdir -p /a0/usr/plugins/_model_config
cat > /a0/usr/plugins/_model_config/config.json << 'MODELCFG'
{"allow_chat_override":true,"chat_model":{"provider":"openai","name":"fc:balanced","api_base":"http://fc-llm-bridge.fc-llm-bridge.svc.cluster.local:8080/v1","ctx_length":8192,"ctx_history":0.7,"vision":false,"kwargs":{"temperature":0,"num_ctx":8192}},"utility_model":{"provider":"ollama","name":"qwen2.5:1.5b","api_base":"http://127.0.0.1:11434","ctx_length":8192,"ctx_input":0.7,"kwargs":{"num_ctx":8192}},"embedding_model":{"provider":"ollama","name":"nomic-embed-text","api_base":"http://127.0.0.1:11434","kwargs":{}}}
{"allow_chat_override":true,"chat_model":{"provider":"openai","name":"fc:balanced","api_base":"http://fc-llm-bridge.fc-llm-bridge.svc:8080/v1","ctx_length":8192,"ctx_history":0.7,"vision":false,"kwargs":{"temperature":0,"num_ctx":8192}},"utility_model":{"provider":"ollama","name":"qwen2.5:1.5b","api_base":"http://127.0.0.1:11434","ctx_length":8192,"ctx_input":0.7,"kwargs":{"num_ctx":8192}},"embedding_model":{"provider":"ollama","name":"nomic-embed-text","api_base":"http://127.0.0.1:11434","kwargs":{}}}
MODELCFG
# Strip heredoc indentation
sed -i 's/^ //' /a0/usr/plugins/_model_config/config.json
@@ -282,7 +282,7 @@ spec:
- name: A0_SET_chat_model_name
value: "fc:balanced"
- name: A0_SET_chat_model_api_base
value: "http://fc-llm-bridge.fc-llm-bridge.svc.cluster.local:8080/v1"
value: "http://fc-llm-bridge.fc-llm-bridge.svc:8080/v1"
- name: A0_SET_chat_model_api_key
valueFrom:
secretKeyRef: