Sagemcom Prometheus Exporter

I threw this exported together quickly to work with Telco's provided router (aka CPE), which they called "Bell Home Hub 4000". I've only tested it with my router. I welcome PRs to make it work with others.

quickstart

change the host and password as needed:

docker run -p 8000:8000 -e SAGEMCOM_HOST=192.168.0.1 -e SAGEMCOM_PASSWORD=sekret  -it geoffo/sagemcom-prometheus-exporter

and point prometheus at port 8000.

Low Memory Checker

If you pass in the arguments memorycheck <number of MiB> it will reboot the device if the device currently has less than the given amount of memory free. Great for running at a cron job in the middle of the night.

for example:

docker run -p 8000:8000 -e SAGEMCOM_HOST=192.168.0.1 -e SAGEMCOM_PASSWORD=sekret  -it geoffo/sagemcom-prometheus-exporter python main.py memorycheck 250

and point prometheus at port 8000.

GCP DNS updater

docker run -p 8000:8000 -e SAGEMCOM_HOST=192.168.0.1 -e SAGEMCOM_PASSWORD=sekret \
    --mount type=bind,source="gcloud-creds-ip-updater.json,target=/credentials.json,readonly \
    -e GOOGLE_APPLICATION_CREDENTIALS=/credentials.json  \
    -e TARGET_ZONE=my-gcp-zone-resource-name  \
    -e TARGET_DOMAIN=the.domain.name.example.com.  \
    -it geoffo/sagemcom-prometheus-exporter:local_ipupdate python main.py updatedns-gcp

This requires gcp credentials--see gcp documentation. In the example above, it's using the GOOGLE_APPLICATION_CREDENTIALS file method.

kubernetes

cat <<EOF | kubectl create -f -
apiVersion: apps/v1
kind: Deployment
metadata:
  name: sagemcom-prometheus-exporter
  labels:
    app: sagemcom-prometheus-exporter
spec:
  replicas: 1
  selector:
    matchLabels:
      app: sagemcom-prometheus-exporter
  template:
    metadata:
      labels:
        app: sagemcom-prometheus-exporter
    spec:
      containers:
      - name: exporter
        image: geoffo/sagemcom-prometheus-exporter
        ports:
        - containerPort: 8000
        env:
        - name: SAGEMCOM_HOST
          value: 192.168.0.1
        - name: SAGEMCOM_PASSWORD
          valueFrom:
            secretKeyRef:
                name: sagemcom-credentials
                key: password
                optional: false
EOF

cat <<EOF | microk8s kubectl create -f -
apiVersion: v1
kind: Secret
metadata:
  labels:
    k8s-app: sagemcom-prometheus-exporter
  name: sagemcom-credentials
  namespace: default
type: Opaque
data:
  password: CHANGEMECHANGEME
EOF

If you're using the prometheus operator:

cat <<EOF | microk8s kubectl create -f -
apiVersion: v1
kind: Service
metadata:
  name: sagemcom-prometheus-exporter
  labels:
    app: sagemcom-prometheus-exporter
spec:
  selector:
    app: sagemcom-prometheus-exporter
  ports:
    - protocol: TCP
      port: 8000
      targetPort: 8000
EOF


cat <<EOF | kubectl create -f -
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
  labels:
    k8s-app: sagemcom-prometheus-exporter
    release: kube-prom-stack
  name: sagemcom-prometheus-exporter
spec:
  endpoints:
  - path: /
    targetPort: 8000
    scheme: http
    interval: 10s
  selector:
    matchLabels:
        app: sagemcom-prometheus-exporter
EOF