cluster-monitor-operator添加外部metrics
默认prometheus-k8s 没有读取除openshift-monitoring 外的 project 权限 ,如果metrics 是在其它project中,需要添加sa prometheus-k8s 读取整个集群namespace 权限,执行下面操作:
oc adm policy add-cluster-role-to-user cluster-reader system:serviceaccount:openshift-monitoring:prometheus-k8s
添加被监控服务的 svc 和 ServiceMonitor
注意下面yaml 中的 lebels 及 selector 的对应关系,否则会找不到
bfs-data-detection.yaml
apiVersion: v1
kind: Service
metadata:
labels:
k8s-app: bfs-data-detection
name: bfs-data-detection
namespace: bfs-webs
spec:
ports:
- name: http
port: 9103
protocol: TCP
targetPort: http
selector:
app: bfs-data-detection
type: ClusterIP
---
apiVersion: monitoring.coreos.com/v1
kind: ServiceMonitor
metadata:
name: bfs-data-detection
# Change this to the namespace the Prometheus instance is running in
namespace: openshift-monitoring
labels:
k8s-app: bfs-data-detection
spec:
selector:
matchLabels:
k8s-app: bfs-data-detection # target bfs-data-detection service
jobLabel: k8s-app
namespaceSelector:
matchNames:
- bfs-webs
endpoints:
- port: http
scheme: http
interval: 5m
oc apply -f bfs-data-detection.yaml
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