Update README docker example, set Dockerfile maintainer label, Update systemd example

Author: treydock

Dockerfile

@@ -1,6 +1,7 @@
 ARG ARCH="amd64"
 ARG OS="linux"
 FROM quay.io/prometheus/busybox-${OS}-${ARCH}:glibc
+LABEL maintainer="Trey Dockendorf <treydock@gmail.com>"
 ARG ARCH="amd64"
 ARG OS="linux"
 COPY .build/${OS}-${ARCH}/ssh_exporter /ssh_exporter

README.md

@@ -72,6 +72,16 @@ Example of running the Docker container
 docker run -d -p 9312:9312 -v "ssh_exporter.yaml:/ssh_exporter.yaml:ro" treydock/ssh_exporter
 ```
 
+Example of running the Docker container and making SSH private key available.
+This requires setting `private_key` value to `/.ssh/id_rsa`.
+
+```
+docker run -d -p 9312:9312 \
+-v "ssh_exporter.yaml:/ssh_exporter.yaml:ro" \
+-v "/home/prometheus/.ssh/id_rsa:/.ssh/id_rsa:ro" \
+treydock/ssh_exporter
+```
+
 ## Install
 
 Download the [latest release](https://github.com/treydock/ssh_exporter/releases)

systemd/ssh_exporter.service

@@ -1,12 +1,12 @@
 [Unit]
-Description=Prometheus ssh_exporter
+Description=Prometheus SSH Exporter
 Wants=basic.target
 After=basic.target network.target
 
 [Service]
 User=ssh_exporter
 Group=ssh_exporter
-ExecStart=/usr/local/bin/ssh_exporter --config.file=/etc/ssh_exporterssh_exporter.yaml
+ExecStart=/usr/local/bin/ssh_exporter --config.file=/etc/ssh_exporter.yaml --web.listen-address=:9312
 ExecReload=/bin/kill -HUP $MAINPID
 KillMode=process
 Restart=always