updates after writing blog

etcd-inmemory-monitoring/README

@@ -1,3 +0,0 @@
-https://github.com/prometheus/client_python
-pip install prometheus-client
-

etcd-inmemory-monitoring/alertingrules.yaml

@@ -14,7 +14,7 @@ spec:
         summary: etcd cluster backup is too old or not present
       expr: |-
         time() - 
-        max(max_over_time(file_time_seconds{job="pantherbackupexporter",type="backup"}[60m]))
+        max(max_over_time(file_time_seconds{job="controllerbackupexporter",type="backup"}[60m]))
         > 3600
       for: 5m
       labels:
@@ -24,7 +24,7 @@ spec:
         description: 'etcd backup is too small or not present'
         summary: etcd cluster backup is too small or not present
       expr: |-
-         max(max_over_time(file_size{job="pantherbackupexporter",type="backup"}[60m])) 
+         max(max_over_time(file_size{job="controllerbackupexporter",type="backup"}[60m])) 
          < 
          10000000
       for: 5m
@@ -36,7 +36,7 @@ spec:
         summary: etcd image file is too old or not present
       expr: |-
         time() - 
-        max(max_over_time(file_time_seconds{job="pantherbackupexporter",type="image"}[60m]))
+        max(max_over_time(file_time_seconds{job="controllerbackupexporter",type="image"}[60m]))
         > 3600
       for: 5m
       labels:
@@ -46,7 +46,7 @@ spec:
         description: 'etcd image file is too small or not present'
         summary: etcd cluster image file is too small or not present
       expr: |-
-         max(max_over_time(file_size{job="pantherbackupexporter",type="image"}[60m])) 
+         max(max_over_time(file_size{job="controllerbackupexporter",type="image"}[60m])) 
          < 
          10
       for: 5m

etcd-inmemory-monitoring/deployment.yaml

@@ -1,17 +1,16 @@
 apiVersion: apps/v1
 kind: Deployment
 metadata:
-  name: pantherbackupmonitoring
+  name: controllerbackupmonitoring
   namespace: monitoring
 spec:
   selector:
     matchLabels:
-      app: pantherbackupmonitoring
+      app: controllerbackupmonitoring
   template:
     metadata:
       labels:
-        app: pantherbackupmonitoring
-        prometheus-scrapable: "true"
+        app: controllerbackupmonitoring
     spec:
       terminationGracePeriodSeconds: 0
       tolerations:
@@ -21,8 +20,13 @@ spec:
         - effect: NoSchedule
           key: node-role.kubernetes.io/master
           operator: Exists
-      nodeSelector:
-        kubernetes.io/hostname: panther
+      affinity:
+        nodeAffinity:
+          requiredDuringSchedulingIgnoredDuringExecution:
+            nodeSelectorTerms:
+              - matchExpressions:
+                  - key: node-role.kubernetes.io/control-plane
+                    operator: Exists
       containers:
         - name: exporter
           image: docker.example.com/filemonitor:1.0
@@ -37,11 +41,11 @@ spec:
               protocol: TCP
               name: http
           volumeMounts:
-            - name: pantherbackup
+            - name: controllerbackup
               mountPath: /backup
               readOnly: true
       volumes:
-        - name: pantherbackup
+        - name: controllerbackup
           hostPath:
             path: /var/lib/wamblee/etcd
 

etcd-inmemory-monitoring/docker-compose.yaml

@@ -6,14 +6,12 @@ services:
     command:
       - python3
       - /exporter.py
-      # some paths for testing
       - /data/x.txt
       - /data/y.txt
     ports:
       - "8080:8080"
     volumes:
-      # for testing.
-      - /home/user/downloads:/data
+      - /home/erik/downloads:/data
     
 
  

etcd-inmemory-monitoring/service.yaml

@@ -2,13 +2,13 @@
 apiVersion: v1
 kind: Service
 metadata:
-  name: pantherbackupexporter
+  name: controllerbackupexporter
   namespace: monitoring
   labels:
-    app: pantherbackupmonitoring
+    app: controllerbackupmonitoring
 spec:
   selector: 
-    app: pantherbackupmonitoring
+    app: controllerbackupmonitoring
   ports:
     - port: 8080
       targetPort: 8080

etcd-inmemory-monitoring/servicemonitor.yaml

@@ -1,7 +1,7 @@
 apiVersion: monitoring.coreos.com/v1
 kind: ServiceMonitor
 metadata:
-  name: pantherbackupmonitoring
+  name: controllerbackupmonitoring
   namespace: monitoring
 spec: 
   endpoints:
@@ -12,6 +12,6 @@ spec:
     scrapeTimeout: 30s
   selector:
     matchLabels:
-      app: pantherbackupmonitoring
+      app: controllerbackupmonitoring
   targetLabels:
     - app