Add redis

Author: rivethead42

alertmanager/prometheus-rules-config-map.yml

@@ -171,7 +171,7 @@ data:
     groups:
     - name: redis_alerts
       rules:
-      - alert: TornadoRedisCacheMissesHigh
+      - alert: RedisCacheMissesHigh
         expr: redis_keyspace_hits_total / (redis_keyspace_hits_total + redis_keyspace_misses_total) > 0.8
         for: 10m
         labels:
@@ -186,21 +186,21 @@ data:
         annotations:
           summary: "Redis instance {{ $labels.addr }} may be hitting maxclient limit."
           description: "The Redis instance at {{ $labels.addr }} had {{ $value }} rejected connections during the last 10m and may be hitting the maxclient limit."
-      - alert: TornadoRedisServerDown
-        expr: redis_up{kubernetes_name="tornado-redis"} == 0
+      - alert: RedisServerDown
+        expr: redis_up{kubernetes_name="media-redis-deployment"} == 0
         for: 10m
         labels:
           severity: critical
         annotations:
           summary: Redis Server {{ $labels.instance }} is down!
-      - alert: TornadoRedisServerGone
-        expr:  absent(redis_up{kubernetes_name="tornado-redis"})
+      - alert: RedisServerGone
+        expr:  absent(redis_up{kubernetes_name="media-redis-deployment"})
         for: 10m
         labels:
           severity: critical
         annotations:
-          summary: No Tornado Redis servers are reporting!
-          description: Werner Heisenberg says - there is no uncertainty about the Tornado Redis server being gone.
+          summary: No Redis servers are reporting!
+          description: Werner Heisenberg says - there is no uncertainty about the Redis server being gone.
   redis_rules.yml: |
     groups:
     - name: redis_rules

redis/redis.yml

@@ -0,0 +1,61 @@
+apiVersion: extensions/v1beta1
+kind: Deployment
+metadata:
+  name: media-redis-deployment
+spec:
+  replicas: 1
+  template:
+    metadata:
+      annotations:
+        prometheus.io/scrape: "true"
+        prometheus.io/port: "9121"
+      labels:
+        app: media-redis
+    spec:
+      volumes:
+        - name: host-sys
+          hostPath:
+            path: /sys
+      initContainers:
+        - name: disable-thp
+          image: redis:4.0-alpine
+          volumeMounts:
+            - name: host-sys
+              mountPath: /host-sys
+          command: ["sh", "-c", "echo never > /host-sys/kernel/mm/transparent_hugepage/enabled"]
+      containers:
+      - name: redis
+        image: redis:4.0-alpine
+        imagePullPolicy: IfNotPresent
+        resources:
+          requests:
+            cpu: 250m
+            memory: 500Mi
+        ports:
+        - containerPort: 6379
+      - name: redis-exporter
+        image: oliver006/redis_exporter:v0.21.1
+        resources:
+          requests:
+            cpu: 100m
+            memory: 100Mi
+        ports:
+        - containerPort: 9121
+---
+apiVersion: v1
+kind: Service
+metadata:
+  annotations:
+    prometheus.io/scrape: "true"
+    prometheus.io/port: "9121"
+  name: media-redis-svc
+  labels:
+    app: media-redis
+spec:
+  ports:
+  - port: 6379
+    name: redis
+  - port: 9121
+    name: metrics
+  selector:
+    app: media-redis