feat(edge): envsubst 템플릿 기반으로 설정을 전환한다

Edge Dockerfile에서 envsubst를 사용해 환경 변수를 템플릿에
대입한 후 설정 파일을 생성하도록 변경한다.

- Dockerfile에 gettext 패키지를 추가한다
- configs/edge-compose.yaml을 configs/edge-compose.yaml.tmpl로
  전환하여 환경 변수 대치 지원
- docker-compose.yml edge 서비스에 환경 변수를 명시적으로 전달

apps/edge/Dockerfile

@@ -16,14 +16,14 @@ RUN CGO_ENABLED=0 GOFLAGS=-trimpath go build -o /out/edge ./apps/edge/cmd/edge
 
 FROM alpine:3.22
 
-RUN addgroup -S iop && adduser -S iop -G iop
+RUN apk add --no-cache gettext && addgroup -S iop && adduser -S iop -G iop
 WORKDIR /app
 
 COPY --from=builder /out/edge /usr/local/bin/edge
-COPY --from=builder /workspace/iop/configs/edge-compose.yaml /app/configs/edge-compose.yaml
+COPY --from=builder /workspace/iop/configs/edge-compose.yaml.tmpl /app/configs/edge-compose.yaml.tmpl
 
 EXPOSE 9090
 
 USER iop
-ENTRYPOINT ["edge"]
-CMD ["serve", "--config", "/app/configs/edge-compose.yaml"]
+ENTRYPOINT ["/bin/sh", "-c"]
+CMD ["envsubst < /app/configs/edge-compose.yaml.tmpl > /tmp/edge-compose.yaml && exec edge serve --config /tmp/edge-compose.yaml"]

configs/edge-compose.yaml.tmpl

@@ -1,9 +1,9 @@
 edge:
-  id: "edge-compose"
-  name: "Compose Edge"
+  id: "${IOP_EDGE_ID}"
+  name: "${IOP_EDGE_NAME}"
 
 server:
-  listen: "0.0.0.0:9090"
+  listen: "${IOP_EDGE_LISTEN}"
   advertise_host: ""
 
 bootstrap:
@@ -24,7 +24,7 @@ metrics:
 
 control_plane:
   enabled: true
-  wire_addr: "control-plane:19081"
+  wire_addr: "${IOP_CONTROL_PLANE_EDGE_WIRE_ADDR}"
   reconnect_interval_sec: 5
 
 a2a:
@@ -41,9 +41,9 @@ console:
   timeout_sec: 300
 
 nodes:
-  - id: "external-node"
-    alias: "external-node"
-    token: "changeme"
+  - id: "${IOP_EDGE_NODE_ID}"
+    alias: "${IOP_EDGE_NODE_ALIAS}"
+    token: "${IOP_EDGE_NODE_TOKEN}"
     adapters:
       cli:
         enabled: true

docker-compose.yml

@@ -61,6 +61,14 @@ services:
       context: ..
       dockerfile: iop/apps/edge/Dockerfile
     restart: unless-stopped
+    environment:
+      IOP_EDGE_ID: "${IOP_EDGE_ID:-edge-compose}"
+      IOP_EDGE_NAME: "${IOP_EDGE_NAME:-Compose Edge}"
+      IOP_EDGE_LISTEN: "0.0.0.0:9090"
+      IOP_CONTROL_PLANE_EDGE_WIRE_ADDR: "control-plane:19081"
+      IOP_EDGE_NODE_ID: "${IOP_EDGE_NODE_ID:-external-node}"
+      IOP_EDGE_NODE_ALIAS: "${IOP_EDGE_NODE_ALIAS:-external-node}"
+      IOP_EDGE_NODE_TOKEN: "${IOP_EDGE_NODE_TOKEN:?set IOP_EDGE_NODE_TOKEN for external node access}"
     ports:
       - "${IOP_EDGE_NODE_BIND:-0.0.0.0}:${IOP_EDGE_NODE_PORT:-19090}:9090"
     depends_on: