feat: enhance the demo with disk telemetries

Signed-off-by: Kevin222004 <[email protected]>

.github/workflows/docker-publish.yml

@@ -48,6 +48,7 @@ jobs:
           curl --fail http://127.0.0.1:9091/api/v1/query?query=net_bytes_recv_total | grep net_bytes_recv_total
           curl --fail http://127.0.0.1:9091/api/v1/query?query=nginx_requests | grep nginx_requests
           curl --fail http://127.0.0.1:9091/api/v1/query?query=redfish_thermal_fans_reading_rpm | grep redfish_thermal_fans_reading_rpm
+          curl --fail http://127.0.0.1:9091/api/v1/query?query=disk_used_percent | grep disk_used_percent
 
       - name: Logs
         if: always()

README.md

@@ -105,7 +105,7 @@ curl -k --user spdkuser:spdkpass -X POST -H "Content-Type: application/json" -d
 - For example <https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/main/receiver/syslogreceiver>
 - TODO: need more details and examples
 
-## Qery examples
+## Query examples
 
 ```text
 curl --fail http://127.0.0.1:9091/api/v1/query?query=mem_free | grep mem_free
@@ -114,6 +114,7 @@ curl --fail http://127.0.0.1:9091/api/v1/query?query=dpu_num_blocks | grep dpu_n
 curl --fail http://127.0.0.1:9091/api/v1/query?query=net_bytes_recv_total | grep net_bytes_recv_total
 curl --fail http://127.0.0.1:9091/api/v1/query?query=nginx_requests | grep nginx_requests
 curl --fail http://127.0.0.1:9091/api/v1/query?query=redfish_thermal_fans_reading_rpm | grep redfish_thermal_fans_reading_rpm
+curl --fail http://127.0.0.1:9091/api/v1/query?query=disk_used_percent | grep disk_used_percent
 ```
 
 ## Running example

config/telegraf.conf

@@ -32,6 +32,9 @@
 [[inputs.net]]
   ignore_protocol_stats = false
 
+[[inputs.disk]]
+  ignore_fs = ["tmpfs", "devtmpfs", "devfs", "iso9660", "overlay", "aufs", "squashfs"]
+
 [[outputs.file]]
   files = ["stdout"]
   data_format = "influx"

docker-compose.yml

@@ -41,7 +41,11 @@ services:
   telegraf:
     image: docker.io/library/telegraf:1.29
     volumes:
+      - /:/hostfs:ro
       - ./config/telegraf.conf:/etc/telegraf/telegraf.conf:ro
+    environment:
+      - HOST_MOUNT_PREFIX=/hostfs
+      - HOST_PROC=/hostfs/proc
     depends_on:
       - spdk
       - influxdb