Openshift: unable to validate against any security > context constraint

11,158

Fixed this by using:

oc adm policy add-scc-to-user privileged -z default -n efk

Manual:

-z, --serviceaccount=[]: service account in the current namespace to use as a user

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html_programmer
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html_programmer

Java consultant. Passionate about web development in general and always experimenting with common software tech in my private time.

Updated on June 12, 2022

Comments

  • html_programmer
    html_programmer almost 2 years

    I try to create the following statefulSet:

    apiVersion: apps/v1
    kind: StatefulSet
    metadata:
      name: es-cluster
      namespace: efk
    spec:
      serviceName: elasticsearch
      replicas: 3
      selector:
        matchLabels:
          app: elasticsearch
      template:
        metadata:
          labels:
            app: elasticsearch
        spec:
          containers:
          - name: elasticsearch
            image: docker.elastic.co/elasticsearch/elasticsearch-oss:7.2.0
            resources:
              limits:
                cpu: 1000m
              requests:
                cpu: 100m
            ports:
            - containerPort: 9200
              name: rest
              protocol: TCP
            - containerPort: 9300
              name: inter-node
              protocol: TCP
            volumeMounts:
            - name: data
              mountPath: /usr/share/elasticsearch/data
            env:
            - name: cluster.name
              value: k8s-logs
            - name: node.name
              valueFrom:
                fieldRef:
                  fieldPath: metadata.name
            - name: discovery.zen.ping.unicast.hosts
              value: "es-cluster-0.elasticsearch,es-cluster-1.elasticsearch,es-cluster-2.elasticsearch"
            - name: discovery.zen.minimum_master_nodes
              value: "2"
            - name: ES_JAVA_OPTS
              value: "-Xms256m -Xmx256m"
          initContainers:
          - name: fix-permissions
            image: busybox
            command: ["sh", "-c", "chown -R 1000:1000 /usr/share/elasticsearch/data"]
            securityContext:
              privileged: true
            volumeMounts:
            - name: data
              mountPath: /usr/share/elasticsearch/data
          - name: increase-vm-max-map
            image: busybox
            command: ["sysctl", "-w", "vm.max_map_count=262144"]
            securityContext:
              privileged: true
          - name: increase-fd-ulimit
            image: busybox
            command: ["sh", "-c", "ulimit -n 65536"]
            securityContext:
              privileged: true
      volumeClaimTemplates:
      - metadata:
          name: data
        spec:
          accessModes: [ "ReadWriteOnce" ]
          storageClassName: "pv0002"
          resources:
            requests:
              storage: 100Mi
    

    Unfortunately I run in the following exception which I don't seem to be able to resolve:

    create Pod es-cluster-0 in StatefulSet es-cluster failed error: pods "es-cluster-0" is forbidden: unable to validate against any security context constraint: [spec.initContainers[0].securityContext.privileged: Invalid value: true: Privileged containers are not allowed spec.initContainers[1].securityContext.privileged: Invalid value: true: Privileged containers are not allowed spec.initContainers[2].securityContext.privileged: Invalid value: true: Privileged containers are not allowed]

    I added:

    oc adm policy add-scc-to-user privileged developer
    

    Not sure what else I'm supposed to check, I expect it to work.

    Note: I use CRC on Mac OSX locally. https://github.com/code-ready/crc

    Edit, I went overboard and added all possible users that came to mind:

    oc describe scc 
    
    Name:                                           privileged
    Priority:                                       <none>
    Access:                                         
      Users:                                        system:admin,system:serviceaccount:openshift-infra:build-controller,developer,deployer,default,builder,statefulset-controller
      Groups:                                       system:cluster-admins,system:nodes,system:masters
    Settings:                                       
      Allow Privileged:                             true
      Allow Privilege Escalation:                   true
      Default Add Capabilities:                     <none>
      Required Drop Capabilities:                   <none>
      Allowed Capabilities:                         *
      Allowed Seccomp Profiles:                     *
      Allowed Volume Types:                         *
      Allowed Flexvolumes:                          <all>
      Allowed Unsafe Sysctls:                       *
      Forbidden Sysctls:                            <none>
      Allow Host Network:                           true
      Allow Host Ports:                             true
      Allow Host PID:                               true
      Allow Host IPC:                               true
      Read Only Root Filesystem:                    false
      Run As User Strategy: RunAsAny                
        UID:                                        <none>
        UID Range Min:                              <none>
        UID Range Max:                              <none>
      SELinux Context Strategy: RunAsAny            
        User:                                       <none>
        Role:                                       <none>
        Type:                                       <none>
        Level:                                      <none>
      FSGroup Strategy: RunAsAny                    
        Ranges:                                     <none>
      Supplemental Groups Strategy: RunAsAny        
        Ranges:                                     <none>
    

    Same error wtf...