I think I might have found my issue: > While ServiceMonitors must live in the same namespace as the Prometheus > resource, discovered targets may come from any namespace. This allows > cross-namespace monitoring use cases, for example, for meta-monitoring. Use > the namespaceSelector of the ServiceMonitorSpec to restrict the > namespaces from which Endpoints objects may be discovered.
>From the generic service monitor guid https://github.com/coreos/prometheus-operator/blob/master/Documentation/user-guides/running-exporters.md#namespace-limitsthings-to-keep-in-mind On Tuesday, 14 August 2018 10:08:50 UTC+1, Tim Blackwell wrote: > > When running the examples in default namespace, all is good. > I tried to create the prometheus operator and prometheus stateful set in a > monitoring namespace but then it was unable to monitor the example app. > When running the prometheus / operator in monitoring namespace, I updated > the service account yaml accordingly. > > Is it possible for prometheus / operator to monitor and collect metrics > from different namespaces? If so what should I change to get this behaviour? > > # Default Namespace > > ## Operator > > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/rbac/prometheus-operator/prometheus-operator-service-account.yaml > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/rbac/prometheus-operator/prometheus-operator-cluster-role.yaml > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/rbac/prometheus-operator/prometheus-operator-cluster-role-binding.yaml > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/rbac/prometheus-operator/prometheus-operator-deployment.yaml > > ## Prometheus > > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/rbac/prometheus/prometheus-service-account.yaml > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/rbac/prometheus/prometheus-cluster-role.yaml > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/rbac/prometheus/prometheus-cluster-role-binding.yaml > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/rbac/prometheus/prometheus.yaml > > ## Example app > > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/user-guides/getting-started/example-app-deployment.yaml > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/user-guides/getting-started/example-app-service-monitor.yaml > kubectl create -f > https://raw.githubusercontent.com/coreos/prometheus-operator/master/example/user-guides/getting-started/example-app-service.yaml > > > > # Monitoring Namespace > > kubectl create namespace monitoring > > ## Operator > > kubectl --namespace monitoring create -f > example/rbac/prometheus-operator/prometheus-operator-service-account.yaml > kubectl --namespace monitoring create -f > example/rbac/prometheus-operator/prometheus-operator-cluster-role.yaml > kubectl --namespace monitoring create -f > example/rbac/prometheus-operator/prometheus-operator-cluster-role-binding.yaml > kubectl --namespace monitoring create -f > example/rbac/prometheus-operator/prometheus-operator-deployment.yaml > > ## Prometheus > > kubectl --namespace monitoring create -f > example/rbac/prometheus/prometheus-service-account.yaml > kubectl --namespace monitoring create -f > example/rbac/prometheus/prometheus-cluster-role.yaml > kubectl --namespace monitoring create -f > example/rbac/prometheus/prometheus-cluster-role-binding.yaml > kubectl --namespace monitoring create -f > example/rbac/prometheus/prometheus.yaml > > ## Example app > > kubectl create -f > example/user-guides/getting-started/example-app-deployment.yaml > kubectl create -f > example/user-guides/getting-started/example-app-service-monitor.yaml > kubectl create -f > example/user-guides/getting-started/example-app-service.yaml >
