fix: use and pin alpine in Containerfile, add compose.yaml (#5)

Containerfile

@@ -15,7 +15,7 @@ COPY . .
 
 RUN make ovh-exporter && mv ovh-exporter /usr/bin/
 
-FROM busybox:stable AS runtime
+FROM alpine:3.20.3 AS runtime
 
 COPY --from=build /usr/bin/ovh-exporter /usr/bin/ovh-exporter
 

README.md

@@ -21,6 +21,12 @@ export SERVER_PORT="8080"
 
 # Running
 
+## Binary
 ```bash
 ovh-exporter serve
 ```
+
+## Compose file
+```bash
+nerdctl compose up
+```

compose.yaml

@@ -0,0 +1,16 @@
+services:
+  ovh-exporter:
+    image: ghcr.io/wiremind/ovh-exporter
+    build:
+      context: .
+    container_name: ovh-exporter
+    ports:
+      - "8080:8080"
+    environment:
+      OVH_ENDPOINT: "ovh-eu"
+      OVH_APP_KEY: ""
+      OVH_APP_SECRET: ""
+      OVH_CONSUMER_KEY: ""
+      OVH_CLOUD_PROJECT_INSTANCE_BILLING_PROJECT_ID: ""
+      OVH_CACHE_UPDATE_INTERVAL: "60"
+      SERVER_PORT: "8080"