backend: resource limits:

- set resource mem and cpu requests/limits for all used services (not minio for now)
- add readiness proble to redis, mongo
- adjust crawler limits, set via configmap

backend/k8sman.py

@@ -50,6 +50,11 @@ class K8SManager:
 
         self.redis_url = os.environ["REDIS_URL"]
 
+        self.requests_cpu = os.environ["CRAWLER_REQUESTS_CPU"]
+        self.limits_cpu = os.environ["CRAWLER_LIMITS_CPU"]
+        self.requests_mem = os.environ["CRAWLER_REQUESTS_MEM"]
+        self.limits_mem = os.environ["CRAWLER_LIMITS_MEM"]
+
         self.loop = asyncio.get_running_loop()
         self.loop.create_task(self.run_event_loop())
         self.loop.create_task(self.init_redis(self.redis_url))
@@ -689,20 +694,14 @@ class K8SManager:
     ):
         """Return crawl job template for crawl job, including labels, adding optiona crawl params"""
 
-        requests_memory = "384M"
-        limit_memory = "2G"
-
-        requests_cpu = "500m"
-        limit_cpu = "2000m"
-
         resources = {
             "limits": {
-                "cpu": limit_cpu,
-                "memory": limit_memory,
+                "cpu": self.limits_cpu,
+                "memory": self.limits_mem,
             },
             "requests": {
-                "cpu": requests_cpu,
-                "memory": requests_memory,
+                "cpu": self.requests_cpu,
+                "memory": self.requests_mem,
             },
         }
 

chart/templates/configmap.yaml

@@ -17,6 +17,12 @@ data:
   CRAWL_TIMEOUT: "{{ .Values.crawl_timeout }}"
   CRAWL_RETRIES: "{{ .Values.crawl_retries }}"
 
+  CRAWLER_REQUESTS_CPU: "{{ .Values.crawler_requests_cpu }}"
+  CRAWLER_LIMITS_CPU: "{{ .Values.crawler_limits_cpu }}"
+
+  CRAWLER_REQUESTS_MEM: "{{ .Values.crawler_requests_memory }}"
+  CRAWLER_LIMITS_MEM: "{{ .Values.crawler_limits_memory }}"
+
   REDIS_URL: "{{ .Values.redis_url }}"
 
   REDIS_CRAWLS_DONE_KEY: "crawls-done"

chart/templates/frontend.yaml

@@ -57,10 +57,12 @@ spec:
 
           resources:
             limits:
-              cpu: {{ .Values.nginx_limit_cpu }}
+              cpu: {{ .Values.nginx_limits_cpu }}
+              memory: {{ .Values.nginx_limits_memory }}
 
             requests:
               cpu: {{ .Values.nginx_requests_cpu }}
+              memory: {{ .Values.nginx_requests_memory }}
 
           readinessProbe:
             httpGet:

chart/templates/mongo.yaml

@@ -73,6 +73,11 @@ spec:
       containers:
         - name: mongo
           image: {{ .Values.mongo_image }}
+
+          {{- if .Values.mongo_run_repair }}
+          command:  ["mongod", "--repair"]
+          {{- end }}
+
           imagePullPolicy: {{ .Values.mongo_pull_policy }}
           envFrom:
             - secretRef:
@@ -83,6 +88,21 @@ spec:
               mountPath: /data/db
               subPath: mongo
 
+          resources:
+            limits:
+              cpu: {{ .Values.mongo_limits_cpu }}
+              memory: {{ .Values.mongo_limits_memory }}
+
+            requests:
+              cpu: {{ .Values.mongo_requests_cpu }}
+              memory: {{ .Values.mongo_requests_memory }}
+
+          readinessProbe:
+            exec:
+              command:
+                - mongo
+                - --eval
+                - db.adminCommand('ping')
 ---
 apiVersion: v1
 kind: Service

chart/templates/redis.yaml

@@ -70,6 +70,21 @@ spec:
               mountPath: /data
               subPath: redis
 
+          resources:
+            limits:
+              cpu: {{ .Values.redis_limits_cpu }}
+              memory: {{ .Values.redis_limits_memory }}
+
+            requests:
+              cpu: {{ .Values.redis_requests_cpu }}
+              memory: {{ .Values.redis_requests_memory }}
+
+          readinessProbe:
+            exec:
+              command:
+                - redis-cli
+                - ping
+
 ---
 apiVersion: v1
 kind: Service

chart/templates/signer.yaml

@@ -128,6 +128,15 @@ spec:
               mountPath: /data
               subPath: signer
 
+          resources:
+            limits:
+              cpu: {{ .Values.signer_limits_cpu }}
+              memory: {{ .Values.signer_limits_memory }}
+
+            requests:
+              cpu: {{ .Values.signer_requests_cpu }}
+              memory: {{ .Values.signer_requests_memory }}
+
 ---
 apiVersion: v1
 kind: Service