fix(snowflake): support per-replica WorkerId via env for multi-instance StatefulSet

app/snowflake/rpc/etc/snowflake.yaml

@@ -2,5 +2,5 @@ Name: snowflake.rpc
 ListenOn: 0.0.0.0:8080
 
 Snowflake:
-  DatacenterId: 1
-  WorkerId: 0
+  DatacenterId: ${SNOWFLAKE_DATACENTER_ID}
+  WorkerId: ${SNOWFLAKE_WORKER_ID}

deploy/dev/docker-compose.yml

@@ -210,6 +210,9 @@ services:
     image: juwan/snowflake-rpc:dev
     container_name: juwan-snowflake
     restart: unless-stopped
+    environment:
+      SNOWFLAKE_DATACENTER_ID: 1
+      SNOWFLAKE_WORKER_ID: 0
 
   authz-adapter:
     image: juwan/authz-adapter:dev

deploy/k01/02-service/snowflake.yaml

@@ -1,11 +1,12 @@
 apiVersion: apps/v1
-kind: Deployment
+kind: StatefulSet
 metadata:
   name: snowflake
   namespace: juwan
   labels:
     app: snowflake
 spec:
+  serviceName: snowflake-headless
   replicas: 1
   selector:
     matchLabels:
@@ -20,6 +21,18 @@ spec:
       containers:
       - name: snowflake
         image: registry.juwan.xhttp.zip/juwan/snowflake-rpc:latest
+        command: ["/bin/sh", "-c"]
+        args:
+          - |
+            export SNOWFLAKE_WORKER_ID="${POD_NAME##*-}"
+            exec /app/main -f /app/etc/snowflake.yaml
+        env:
+          - name: POD_NAME
+            valueFrom:
+              fieldRef:
+                fieldPath: metadata.name
+          - name: SNOWFLAKE_DATACENTER_ID
+            value: "1"
         ports:
         - name: grpc
           containerPort: 8080
@@ -28,6 +41,21 @@ spec:
             cpu: 20m
             memory: 32Mi
 
+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: snowflake-headless
+  namespace: juwan
+spec:
+  clusterIP: None
+  selector:
+    app: snowflake
+  ports:
+    - name: grpc
+      port: 8080
+      targetPort: 8080
+
 ---
 apiVersion: v1
 kind: Service