Added IMDS emulator container.

sts-agent/compose.yaml

@@ -1,14 +1,25 @@
 services:
-  sts-agent:
-    build: .
-    ulimits:
-      memlock: 64000000
+  imds-emulator:
+    build: ../imds-emulator
     volumes:
-      - /mnt/ext-storage:/mnt/ext-storage:ro
       - /etc/sts-agent:/etc/sts-agent:ro
     environment:
       GOOGLE_APPLICATION_CREDENTIALS: /etc/sts-agent/cred.json
       GOOGLE_API_CERTIFICATE_CONFIG: /etc/sts-agent/certificate_config.json
+      PROJECT_ID: ${PROJECT_ID}
+      PROJECT_NUMBER: ${PROJECT_NUMBER}
+
+  sts-agent:
+    image: gcr.io/cloud-ingest/tsop-agent:latest
+    depends_on:
+      - imds-emulator
+    ulimits:
+      memlock: 64000000
+    volumes:
+      - /mnt/ext-storage:/mnt/ext-storage:ro
+    environment:
+      GCE_METADATA_HOST: imds-emulator
+      GCE_METADATA_IP: imds-emulator
     command:
       - --project-id=${PROJECT_ID}
       - --hostname=${HOSTNAME}