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Cluster: find peer pods by listing pods, not Endpoints
0d20d9d · Gabe Morell · 2026-10-27 14:00
Message
{commit_body(@commit)}
Files changed
modified
config/runtime.exs
+6
−0
@@ -85,6 +85,12 @@ if config_env() == :prod do
| 85 | 85 | strategy: Cluster.Strategy.Kubernetes, |
| 86 | 86 | config: [ |
| 87 | 87 | mode: :ip, |
| 88 | + # Peers are found by listing *pods* with the selector. The | |
| 89 | + # default (:endpoints) filters Endpoints objects by it, and | |
| 90 | + # those carry their Service's labels, not the pods' — so an | |
| 91 | + # unlabelled headless Service finds nobody, silently. The pods | |
| 92 | + # carry the label, and the app's Role already lists them. | |
| 93 | + kubernetes_ip_lookup_mode: :pods, | |
| 88 | 94 | # Both keys are required by libcluster 3.5 even in :endpoints |
| 89 | 95 | # lookup mode — it filters endpoints by selector. |
| 90 | 96 | kubernetes_selector: "name=diogramos", |
Parents: bebafb9