Use file secret for Grafana InfluxDB token

Use file secret for Grafana InfluxDB token

ops/grafana-influxdb/docker-compose.yml

@@ -9,12 +9,16 @@ services:
       GF_SECURITY_ADMIN_PASSWORD__FILE: /run/secrets/grafana_admin_password
       GF_USERS_ALLOW_SIGN_UP: "false"
       GF_AUTH_ANONYMOUS_ENABLED: "false"
-      GRAFANA_INFLUXDB_TOKEN: ${GRAFANA_INFLUXDB_TOKEN}
+    entrypoint: ["/bin/sh", "-ec"]
+    command: >
+      export GRAFANA_INFLUXDB_TOKEN="$$(cat /run/secrets/grafana_influxdb_token)"
+      && exec /run.sh
     volumes:
       - /mnt/user/appdata/grafana:/var/lib/grafana
       - ./provisioning:/etc/grafana/provisioning:ro
     secrets:
       - grafana_admin_password
+      - grafana_influxdb_token
     networks:
       - frontend_net
       - grafana_influx_internal
@@ -63,6 +67,8 @@ secrets:
     file: /mnt/user/appdata/secrets/grafana_admin_password.txt
   influxdb3_admin_token:
     file: /mnt/user/appdata/secrets/influxdb3_admin_token.json
+  grafana_influxdb_token:
+    file: /mnt/user/appdata/secrets/grafana_influxdb_token.txt
 
 networks:
   frontend_net: