Fixes for unclear STS authentication artifacts placement.

sts-agent/compose.yaml

@@ -5,11 +5,11 @@ services:
       memlock: 64000000
     volumes:
       - /mnt/ext-storage:/mnt/ext-storage:ro
-      - /etc/sts-agent:/transfer_root/etc/sts-agent:ro
-      - /var/lib/vault-cert/wif:/transfer_root/var/lib/vault-cert/wif:ro
+      - /etc/sts-agent:/etc/sts-agent:ro
+      - /var/lib/vault-cert/wif:/var/lib/vault-cert/wif:ro
     environment:
-      GOOGLE_APPLICATION_CREDENTIALS: /transfer_root/etc/sts-agent/cred.json
-      GOOGLE_API_CERTIFICATE_CONFIG: /transfer_root/etc/sts-agent/certificate_config.json
+      GOOGLE_APPLICATION_CREDENTIALS: /etc/sts-agent/cred.json
+      GOOGLE_API_CERTIFICATE_CONFIG: /etc/sts-agent/certificate_config.json
     command:
       - --project-id=${PROJECT_ID}
       - --hostname=${HOSTNAME}