Permission error

[oculos]

Hi,

I get this error when trying the configuration below:

Error in workloop { [Error: [object Object]]
  message:
   { kind: 'Status',
     apiVersion: 'v1',
     metadata: {},
     status: 'Failure',
     message:
      'pods is forbidden: User "system:serviceaccount:mongo:default" cannot list resource "pods" in API group "" in the namespace "mongo"',
     reason: 'Forbidden',
     details: { kind: 'pods' },
     code: 403 },
  statusCode: 403 }
Error in workloop { [Error: [object Object]]
  message:
   { kind: 'Status',
     apiVersion: 'v1',
     metadata: {},
     status: 'Failure',
     message:
      'pods is forbidden: User "system:serviceaccount:mongo:default" cannot list resource "pods" in API group "" in the namespace "mongo"',
     reason: 'Forbidden',
     details: { kind: 'pods' },
     code: 403 },
  statusCode: 403 }

Configuration:

apiVersion: apps/v1
kind: StatefulSet
metadata:
  name: mongo
  namespace: mongo
spec:
  serviceName: mongo
  replicas: 2
  updateStrategy:
    type: RollingUpdate
  selector:
    matchLabels: 
      app: mongo 
      component: database
  template:
    metadata:
      labels:
        app: mongo
        component: database
    spec:
      terminationGracePeriodSeconds: 10
      volumes:
        - name: mongovol
          persistentVolumeClaim:
            claimName: mongovol
      containers:
      - name: mongo
        image: mongo:4  
        args: 
          - "--replSet"
          - "rsmongo" 
          - "--bind_ip_all"
        ports:
        - name: mongo # Open POD port
          containerPort: 27017
          protocol: TCP
        volumeMounts:
        - name: mongovol 
          mountPath: /data/db
          subPath: fitnessdb
        env:
        - name: MONGO_INITDB_ROOT_PASSWORD
          valueFrom:
            secretKeyRef:
              name: mongo-secrets
              key: mongo-password
        envFrom:
        - configMapRef:
            name: mongo-config
      - name: mongo-sidecar
        image: cvallance/mongo-k8s-sidecar
        env:
        - name: MONGO_SIDECAR_POD_LABELS 
          value: "app=mongo,component=database"
        - name: KUBERNETES_MONGO_SERVICE_NAME 
          value: "mongo"
        - name: KUBE_NAMESPACE 
          value: "mongo"
        - name: MONGODB_USERNAME
          valueFrom:
            configMapKeyRef:
              name: mongo-config
              key: MONGO_INITDB_ROOT_USERNAME
        - name: MONGODB_PASSWORD 
          valueFrom:
            secretKeyRef:
              name: mongo-secrets
              key: mongo-password
        - name: MONGODB_DATABASE
          value: admin

What could be the problem?

[jmcollin78]

Did you forget to create a Service ? Like this :
apiVersion: v1
kind: Service
metadata:
name: mongosrv
labels:
name: mongosrv
spec:
ports:

• port: 27017
  targetPort: 27017
  clusterIP: None
  selector:
  role: mongodb

[oculos]

Thanks a lot! Now it almost works. The "mongo" container fails, though, because of some storage related issue. I am working with an NFS-based PersistentVolume. Do you know what could be the issue here? Here are the logs:

{"t":{"$date":"2020-11-04T19:37:06.648+00:00"},"s":"I",  "c":"CONTROL",  "id":23285,   "ctx":"main","msg":"Automatically disabling TLS 1.0, to force-enable TLS 1.0 specify --sslDisabledProtocols 'none'"}
{"t":{"$date":"2020-11-04T19:37:06.650+00:00"},"s":"W",  "c":"ASIO",     "id":22601,   "ctx":"main","msg":"No TransportLayer configured during NetworkInterface startup"}
{"t":{"$date":"2020-11-04T19:37:06.651+00:00"},"s":"I",  "c":"NETWORK",  "id":4648601, "ctx":"main","msg":"Implicit TCP FastOpen unavailable. If TCP FastOpen is required, set tcpFastOpenServer, tcpFastOpenClient, and tcpFastOpenQueueSize."}
{"t":{"$date":"2020-11-04T19:37:06.651+00:00"},"s":"W",  "c":"ASIO",     "id":22601,   "ctx":"main","msg":"No TransportLayer configured during NetworkInterface startup"}
{"t":{"$date":"2020-11-04T19:37:06.651+00:00"},"s":"I",  "c":"STORAGE",  "id":4615611, "ctx":"initandlisten","msg":"MongoDB starting","attr":{"pid":1,"port":27017,"dbPath":"/data/db","architecture":"64-bit","host":"mongo-0"}}
{"t":{"$date":"2020-11-04T19:37:06.652+00:00"},"s":"I",  "c":"CONTROL",  "id":23403,   "ctx":"initandlisten","msg":"Build Info","attr":{"buildInfo":{"version":"4.4.1","gitVersion":"ad91a93a5a31e175f5cbf8c69561e788bbc55ce1","openSSLVersion":"OpenSSL 1.1.1  11 Sep 2018","modules":[],"allocator":"tcmalloc","environment":{"distmod":"ubuntu1804","distarch":"x86_64","target_arch":"x86_64"}}}}
{"t":{"$date":"2020-11-04T19:37:06.652+00:00"},"s":"I",  "c":"CONTROL",  "id":51765,   "ctx":"initandlisten","msg":"Operating System","attr":{"os":{"name":"Ubuntu","version":"18.04"}}}
{"t":{"$date":"2020-11-04T19:37:06.652+00:00"},"s":"I",  "c":"CONTROL",  "id":21951,   "ctx":"initandlisten","msg":"Options set by command line","attr":{"options":{"net":{"bindIp":"*"},"replication":{"replSet":"rsmongo"},"security":{"authorization":"enabled"}}}}
{"t":{"$date":"2020-11-04T19:37:06.668+00:00"},"s":"I",  "c":"STORAGE",  "id":22315,   "ctx":"initandlisten","msg":"Opening WiredTiger","attr":{"config":"create,cache_size=481M,session_max=33000,eviction=(threads_min=4,threads_max=4),config_base=false,statistics=(fast),log=(enabled=true,archive=true,path=journal,compressor=snappy),file_manager=(close_idle_time=100000,close_scan_interval=10,close_handle_minimum=250),statistics_log=(wait=0),verbose=[recovery_progress,checkpoint_progress,compact_progress],"}}
{"t":{"$date":"2020-11-04T19:37:07.272+00:00"},"s":"E",  "c":"STORAGE",  "id":22435,   "ctx":"initandlisten","msg":"WiredTiger error","attr":{"error":17,"message":"[1604518627:272072][1:0x7f5914123a80], connection: __posix_open_file, 806: /data/db/WiredTiger.wt: handle-open: open: File exists"}}
{"t":{"$date":"2020-11-04T19:37:07.273+00:00"},"s":"I",  "c":"STORAGE",  "id":22430,   "ctx":"initandlisten","msg":"WiredTiger message","attr":{"message":"unexpected file WiredTiger.wt found, renamed to WiredTiger.wt.36"}}
{"t":{"$date":"2020-11-04T19:37:07.273+00:00"},"s":"E",  "c":"STORAGE",  "id":22435,   "ctx":"initandlisten","msg":"WiredTiger error","attr":{"error":1,"message":"[1604518627:273776][1:0x7f5914123a80], connection: __posix_open_file, 806: /data/db/WiredTiger.wt: handle-open: open: Operation not permitted"}}
{"t":{"$date":"2020-11-04T19:37:07.284+00:00"},"s":"E",  "c":"STORAGE",  "id":22435,   "ctx":"initandlisten","msg":"WiredTiger error","attr":{"error":17,"message":"[1604518627:284350][1:0x7f5914123a80], connection: __posix_open_file, 806: /data/db/WiredTiger.wt: handle-open: open: File exists"}}
{"t":{"$date":"2020-11-04T19:37:07.285+00:00"},"s":"I",  "c":"STORAGE",  "id":22430,   "ctx":"initandlisten","msg":"WiredTiger message","attr":{"message":"unexpected file WiredTiger.wt found, renamed to WiredTiger.wt.37"}}
{"t":{"$date":"2020-11-04T19:37:07.286+00:00"},"s":"E",  "c":"STORAGE",  "id":22435,   "ctx":"initandlisten","msg":"WiredTiger error","attr":{"error":1,"message":"[1604518627:286521][1:0x7f5914123a80], connection: __posix_open_file, 806: /data/db/WiredTiger.wt: handle-open: open: Operation not permitted"}}
{"t":{"$date":"2020-11-04T19:37:07.297+00:00"},"s":"E",  "c":"STORAGE",  "id":22435,   "ctx":"initandlisten","msg":"WiredTiger error","attr":{"error":17,"message":"[1604518627:297050][1:0x7f5914123a80], connection: __posix_open_file, 806: /data/db/WiredTiger.wt: handle-open: open: File exists"}}
{"t":{"$date":"2020-11-04T19:37:07.298+00:00"},"s":"I",  "c":"STORAGE",  "id":22430,   "ctx":"initandlisten","msg":"WiredTiger message","attr":{"message":"unexpected file WiredTiger.wt found, renamed to WiredTiger.wt.38"}}
{"t":{"$date":"2020-11-04T19:37:07.299+00:00"},"s":"E",  "c":"STORAGE",  "id":22435,   "ctx":"initandlisten","msg":"WiredTiger error","attr":{"error":1,"message":"[1604518627:299213][1:0x7f5914123a80], connection: __posix_open_file, 806: /data/db/WiredTiger.wt: handle-open: open: Operation not permitted"}}
{"t":{"$date":"2020-11-04T19:37:07.301+00:00"},"s":"W",  "c":"STORAGE",  "id":22347,   "ctx":"initandlisten","msg":"Failed to start up WiredTiger under any compatibility version. This may be due to an unsupported upgrade or downgrade."}
{"t":{"$date":"2020-11-04T19:37:07.301+00:00"},"s":"F",  "c":"STORAGE",  "id":28595,   "ctx":"initandlisten","msg":"Terminating.","attr":{"reason":"1: Operation not permitted"}}
{"t":{"$date":"2020-11-04T19:37:07.301+00:00"},"s":"F",  "c":"-",        "id":23091,   "ctx":"initandlisten","msg":"Fatal assertion","attr":{"msgid":28595,"file":"src/mongo/db/storage/wiredtiger/wiredtiger_kv_engine.cpp","line":1101}}
{"t":{"$date":"2020-11-04T19:37:07.301+00:00"},"s":"F",  "c":"-",        "id":23092,   "ctx":"initandlisten","msg":"\n\n***aborting after fassert() failure\n\n"}

[oculos]

Never mind, it works now, it was an NFS issue. Thanks a lot for the great guide!

[jmcollin78]

Fine ! But in my opinion using NFS for a MongoDB Volume is not good. You should use very fast (SSD ?) disk formatted with xfs.
Here is my MongoDB volume configuration :

kind: StorageClass
apiVersion: storage.k8s.io/v1
metadata:
  name: fast-mongodb
provisioner: kubernetes.io/gce-pd
parameters:
  type: pd-ssd
  fstype: "xfs"