diff --git a/README.md b/README.md index 2784353..88588e4 100644 --- a/README.md +++ b/README.md @@ -140,31 +140,6 @@ helm install prometheus-fail2ban-exporter prometheus-exporters/prometheus-fail2b --set 'grafana.enabled=true' ``` -#### Avoid deploying on same node / bare metal host as PostgresDB - -As a best practice, avoid running the fail2ban-exporter on the same node / bare-metal host as the PostgresDB. This is -because if the fail2ban-exporter is running on the same node and this node fails, Prometheus can send an alert about the -failure of the node or that the fail2ban-exporter cannot be reached. However, it is not possible to react based on the -metrics that the fail2ban-exporter explicitly provides. Depending on the configuration of alerts, this may mean that the -corresponding notifications are not sent to the right person or group of people. - -The following example prevent the fail2ban-exporter from running on nodes with a PostgresDB. The PostgresDB nodes has an -additional label `database=fail2ban`. The configuration is carried out in `values.yaml`. - -```yaml -deployment: - affinity: - nodeAffinity: - preferredDuringSchedulingIgnoredDuringExecution: - - weight: 100 - preference: - matchExpressions: - - key: database - operator: NotIn - values: - - fail2ban -``` - ## Parameters ### Global