fix: can execute only with root

Author: dobbi84

Dockerfile

@@ -1,5 +1,9 @@
 FROM ubuntu:24.04
 
+RUN apt-get update
+    && apt-get install -y nvme-cli
+    && rm -rf /var/lib/apt/lists/*
+
 COPY nvme_exporter /usr/bin/nvme_exporter
 
 EXPOSE 9998

README.md

@@ -25,13 +25,15 @@ Supported [NVMe CLI](https://github.com/linux-nvme/nvme-cli) versions:
 * Grafana: In [resources](resources/grafana/) for dashboards.
   * [smart-log dashboard](https://grafana.com/grafana/dashboards/14706)
 * Prometheus: In [resources](resources/prom/) for recording and alert rules.
+* Systemd: In [resources](resources/systemd/) for executing the exporter as unit.
+* Scripts: In [resources](resources/scripts/) for package installation hooks.
 
 ## Running
 
-Running the exporter requires the nvme-cli package to be installed on the host.
+Running the exporter requires the nvme-cli package to be installed on the host and be `root` account.
 
 ``` bash
-./nvme_exporter -h
+nvme_exporter -h
 ```
 
 ### Flags
@@ -41,9 +43,3 @@ Running the exporter requires the nvme-cli package to be installed on the host.
 |port | Listen port number. Type: String. | `9998` |
 |ocp | Enable OCP smart log metrics. Type: Bool. | `false` |
 |endpoint | The endpoint to query for metrics. Type: String. | `/metrics` |
-
-## Build
-
-``` bash
-go build .
-```

cmd/nvme_exporter/nvme_exporter

@@ -10,8 +10,6 @@ fi
 
 echo "Detected systemd as init system, proceeding"
 
-useradd -r nvme_exporter -s /bin/false || true
-
 systemctl daemon-reload
 
 systemctl enable nvme_exporter.service

resources/scripts/post-install.sh

@@ -1,6 +1,4 @@
 #!/bin/sh
 set -e
 
-userdel -f nvme_exporter || true
-
 systemctl daemon-reload

resources/scripts/post-remove.sh

@@ -5,8 +5,8 @@ After=network-online.target
 [Service]
 Type=simple
 
-User=nvme_exporter
-Group=nvme_exporter
+User=root
+Group=root
 
 ExecStart=/usr/bin/nvme_exporter