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  1. Project Quay
  2. PROJQUAY-4813

mirror pod goes Init:CrashLoopBackOff in a specific case in IPv6 environment

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: Major Major
    • None
    • quay-v3.8.0
    • config-tool, quay
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    • 0

      Description of problem:

      In IPv6 environment, mirror pod will go Init:CrashLoopBackOff by following below steps.

      1. Configure "Red Hat Quay handles TLS" and upload self-signed certificates in config-tool web page

      configure TLS

      2. Reconfigure the quay

      3. Check all pods reconciled successfully

      4. Update any one configuration in config-tool web page, such as adding a new super user.

      Add a new super user

      5. reconfigure the quay again. 

      6. mirror pod goes Init:CrashLoopBackOff 

      $ oc get pod
      NAME                                              READY   STATUS                  RESTARTS         AGE
      quay-operator.v3.8.0-548ddd9676-kpwln             1/1     Running                 0                9h
      quayregistry-clair-app-69db7b4b67-krpjq           1/1     Running                 0                58m
      quayregistry-clair-app-69db7b4b67-kvpb2           1/1     Running                 0                57m
      quayregistry-clair-postgres-776db9c859-ksjcl      1/1     Running                 1 (89m ago)      90m
      quayregistry-quay-app-f9cc7dd4d-r7dgb             1/1     Running                 0                55m
      quayregistry-quay-app-f9cc7dd4d-wf78x             1/1     Running                 0                55m
      quayregistry-quay-app-upgrade-xwh7z               0/1     Completed               1                90m
      quayregistry-quay-config-editor-fc655db57-gmzv6   1/1     Running                 0                55m
      quayregistry-quay-database-546c54576b-pf7c5       1/1     Running                 0                90m
      quayregistry-quay-mirror-5476b49959-2qn74         0/1     Init:CrashLoopBackOff   15 (3m32s ago)   55m
      quayregistry-quay-mirror-5476b49959-57gmt         0/1     Init:CrashLoopBackOff   15 (3m23s ago)   55m
      quayregistry-quay-redis-6d68fd764-qj764           1/1     Running                 0                90m
      

      Version-Release number of selected component (if applicable):

      quay 3.8.0
      quay-operator-bundle-container-v3.8.0-12
      registry.redhat.io/quay/quay-operator-rhel8@sha256:182b420e2b3e606547a771b0ca0b07098a3ada45ac0c85461152d2b44f251459
      registry.redhat.io/quay/quay-rhel8@sha256:a97945f7a39973f6e217ea4ecbe2fc77c81632df8104e88dc190be81d2aad3a6
      

      Expected results:

      mirror pod should be reconciled successfully

      Additional info:

      Following the same steps in IPv4 environment, everything is fine.

       

      The self-signed certificate

      $ openssl x509 -in ssl.cert  -noout -text
      Certificate:
          Data:
              Version: 3 (0x2)
              Serial Number:
                  70:bf:ba:f9:0d:bd:f6:ef:bd:39:de:50:34:18:17:17:9c:cc:39:9b
              Signature Algorithm: sha256WithRSAEncryption
              Issuer: C = CN, ST = Beijing, L = BJ, O = Quay team, OU = Quay QE Team, CN = .apps.whuipv618.qe.devcluster.openshift.com
              Validity
                  Not Before: Dec  5 12:03:46 2022 GMT
                  Not After : Nov 26 12:03:46 2023 GMT
              Subject: C = CN, ST = Beijing, L = BJ, O = Quay team, OU = Quay QE Team, CN = *.apps.whuipv618.qe.devcluster.openshift.com
              Subject Public Key Info:
                  Public Key Algorithm: rsaEncryption
                      RSA Public-Key: (2048 bit)
                      Modulus:
                          00:c7:5d:7d:62:9c:2a:bc:1a:fd:0c:0f:eb:66:88:
                          .......
                          5f:91
                      Exponent: 65537 (0x10001)
              X509v3 extensions:
                  X509v3 Basic Constraints: 
                      CA:FALSE
                  X509v3 Key Usage: 
                      Digital Signature, Non Repudiation, Key Encipherment
                  X509v3 Subject Alternative Name: 
                      DNS:quayregistry-quay-builder-quay-enterprise.apps.whuipv618.qe.devcluster.openshift.com, DNS:quayregistry-quay-quay-enterprise.apps.whuipv618.qe.devcluster.openshift.com, DNS:*.apps.whuipv618.qe.devcluster.openshift.com
          Signature Algorithm: sha256WithRSAEncryption
               63:d5:39:23:b5:2b:06:68:af:3e:d1:36:19:3a:2e:66:f1:e4:
               ......
               69:25:dc:e7 

       

      The config.yaml

      $ oc -n quay-enterprise rsh $(oc get pod -l app=quay -o NAME -n quay-enterprise|head -n 1) cat /conf/stack/config.yaml
      ALLOW_PULLS_WITHOUT_STRICT_LOGGING: false
      AUTHENTICATION_TYPE: Database
      AVATAR_KIND: local
      BROWSER_API_CALLS_XHR_ONLY: false
      BUILDLOGS_REDIS:
        host: quayregistry-quay-redis
        port: 6379
      CREATE_NAMESPACE_ON_PUSH: true
      CREATE_PRIVATE_REPO_ON_PUSH: true
      DATABASE_SECRET_KEY: qNy0tt-3rDuRzA20jgfoCu2yblwRmER5xWdNITOh1MZWJBvDylKR6XWrbO76OPCDFSU8HKbYNGc0Psdr
      DB_CONNECTION_ARGS:
        autorollback: true
        threadlocals: true
      DB_URI: postgresql://quayregistry-quay-database:sIolseE5lus8WT1BZCcViVKuhJtgzs3LeW4eKrlzY0DoT59jlVPXKyL97-raqCmeMFp7w3ADZW2kA0CW@quayregistry-quay-database:5432/quayregistry-quay-database
      DEFAULT_TAG_EXPIRATION: 2w
      DISTRIBUTED_STORAGE_CONFIG:
        default:
        - S3Storage
        - host: s3.dualstack.us-east-2.amazonaws.com
          s3_access_key: AK....UP
          s3_bucket: whuaws
          s3_secret_key: c...4
          storage_path: /quaydata
      DISTRIBUTED_STORAGE_DEFAULT_LOCATIONS:
      - default
      DISTRIBUTED_STORAGE_PREFERENCE:
      - default
      ENTERPRISE_LOGO_URL: /static/img/RH_Logo_Quay_Black_UX-horizontal.svg
      EXTERNAL_TLS_TERMINATION: false
      FEATURE_ACTION_LOG_ROTATION: false
      FEATURE_ANONYMOUS_ACCESS: true
      FEATURE_APP_REGISTRY: true
      FEATURE_APP_SPECIFIC_TOKENS: true
      FEATURE_BITBUCKET_BUILD: false
      FEATURE_BLACKLISTED_EMAILS: false
      FEATURE_BUILD_SUPPORT: false
      FEATURE_CHANGE_TAG_EXPIRATION: true
      FEATURE_DIRECT_LOGIN: true
      FEATURE_EXTENDED_REPOSITORY_NAMES: true
      FEATURE_FIPS: false
      FEATURE_GITHUB_BUILD: false
      FEATURE_GITHUB_LOGIN: false
      FEATURE_GITLAB_BUILD: false
      FEATURE_GOOGLE_LOGIN: false
      FEATURE_INVITE_ONLY_USER_CREATION: false
      FEATURE_LISTEN_IP_VERSION: IPv6
      FEATURE_MAILING: true
      FEATURE_NONSUPERUSER_TEAM_SYNCING_SETUP: false
      FEATURE_PARTIAL_USER_AUTOCOMPLETE: true
      FEATURE_PROXY_CACHE: true
      FEATURE_PROXY_STORAGE: false
      FEATURE_QUOTA_MANAGEMENT: true
      FEATURE_REPO_MIRROR: true
      FEATURE_RESTRICTED_USERS: true
      FEATURE_SECURITY_NOTIFICATIONS: true
      FEATURE_SECURITY_SCANNER: true
      FEATURE_STORAGE_REPLICATION: false
      FEATURE_SUPERUSERS_FULL_ACCESS: true
      FEATURE_TEAM_SYNCING: false
      FEATURE_UI_V2: true
      FEATURE_USER_CREATION: true
      FEATURE_USER_INITIALIZE: true
      FEATURE_USER_LAST_ACCESSED: true
      FEATURE_USER_LOG_ACCESS: false
      FEATURE_USER_METADATA: false
      FEATURE_USER_RENAME: false
      FEATURE_USERNAME_CONFIRMATION: false
      FRESH_LOGIN_TIMEOUT: 10m
      GITHUB_LOGIN_CONFIG: {}
      GITHUB_TRIGGER_CONFIG: {}
      GITLAB_TRIGGER_KIND: {}
      LDAP_ALLOW_INSECURE_FALLBACK: false
      LDAP_EMAIL_ATTR: mail
      LDAP_UID_ATTR: uid
      LDAP_URI: ldap://localhost
      LOGS_MODEL: database
      LOGS_MODEL_CONFIG: {}
      PREFERRED_URL_SCHEME: https
      REGISTRY_TITLE: whu Red Hat Quay
      REGISTRY_TITLE_SHORT: Red Hat Quay
      REPO_MIRROR_INTERVAL: 30
      REPO_MIRROR_TLS_VERIFY: true
      RESTRICTED_USERS_WHITELIST:
      - user1
      - whuquay
      - whutest
      SEARCH_MAX_RESULT_PAGE_COUNT: 10
      SEARCH_RESULTS_PER_PAGE: 10
      SECRET_KEY: wQri1TZCOV4ZmMDhSXrDSDRF1TnCGKrj5natD-dLT-oNjgRgeGrXhxFcWQWtwp08PVGoDJNQUohjlmC0
      SECURITY_SCANNER_INDEXING_INTERVAL: 30
      SECURITY_SCANNER_V4_ENDPOINT: http://quayregistry-clair-app.quay-enterprise.svc.cluster.local
      SECURITY_SCANNER_V4_NAMESPACE_WHITELIST:
      - admin
      SECURITY_SCANNER_V4_PSK: RGZSaTQwSTJ2ZFhrd05Zd3hsOTYwU0dERm5lWG5PdVk=
      SERVER_HOSTNAME: quayregistry-quay-quay-enterprise.apps.whuipv618.qe.devcluster.openshift.com
      SETUP_COMPLETE: true
      SUPER_USERS:
      - whuquay
      - whutest
      - whu1234
      - whu2345
      TAG_EXPIRATION_OPTIONS:
      - 2w
      TEAM_RESYNC_STALE_TIME: 60m
      TESTING: false
      USER_EVENTS_REDIS:
        host: quayregistry-quay-redis
        port: 6379
      USER_RECOVERY_TOKEN_LIFETIME: 30m
       

       

      The information about crashed mirror pod.  

      $ oc describe pod quayregistry-quay-mirror-5476b49959-2qn74
      Name:         quayregistry-quay-mirror-5476b49959-2qn74
      Namespace:    quay-enterprise
      Priority:     0
      Node:         worker-00.whuipv618.qe.devcluster.openshift.com/2604:1380:4642:7e00::35
      Start Time:   Mon, 05 Dec 2022 20:07:24 +0800
      Labels:       pod-template-hash=5476b49959
                    quay-component=quay-mirror
                    quay-operator/quayregistry=quayregistry
      .....
      Status:       Pending
      IP:           fd01:0:0:4::77
      IPs:
        IP:           fd01:0:0:4::77
      Controlled By:  ReplicaSet/quayregistry-quay-mirror-5476b49959
      Init Containers:
        quay-mirror-init:
          Container ID:  cri-o://48de0ec6bd61b432e813b3598c27bcf6c42335929d90f607c3abe062fce51593
          Image:         registry.redhat.io/quay/quay-rhel8@sha256:a97945f7a39973f6e217ea4ecbe2fc77c81632df8104e88dc190be81d2aad3a6
          Image ID:      registry.redhat.io/quay/quay-rhel8@sha256:7f7ac0670e0074f88a7771a7d48007973f188a9c44210c234fc0ea0a50dec657
          Port:          <none>
          Host Port:     <none>
          Command:
            /bin/sh
            -c
            curl $QUAY_APP_SERVICE_HOST --connect-timeout 360
          State:          Waiting
            Reason:       CrashLoopBackOff
          Last State:     Terminated
            Reason:       Error
            Exit Code:    7
            Started:      Mon, 05 Dec 2022 20:23:27 +0800
            Finished:     Mon, 05 Dec 2022 20:23:27 +0800
          Ready:          False
          Restart Count:  8
          Environment:
            QUAY_APP_SERVICE_HOST:  quayregistry-quay-app
          Mounts:
            /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-nmbqx (ro)
      Containers:
        quay-mirror:
          Container ID:  
          Image:         registry.redhat.io/quay/quay-rhel8@sha256:a97945f7a39973f6e217ea4ecbe2fc77c81632df8104e88dc190be81d2aad3a6
          Image ID:      
          Port:          <none>
          Host Port:     <none>
          Command:
            /quay-registry/quay-entrypoint.sh
          Args:
            repomirror-nomigrate
          State:          Waiting
            Reason:       PodInitializing
          Ready:          False
          Restart Count:  0
          Limits:
            cpu:     1
            memory:  2Gi
          Requests:
            cpu:     500m
            memory:  512Mi
          Environment:
            QE_K8S_CONFIG_SECRET:  quayregistry-quay-config-secret-dc24kfg5d2
            QE_K8S_NAMESPACE:      quay-enterprise (v1:metadata.namespace)
            DEBUGLOG:              false
            ENSURE_NO_MIGRATION:   true
            HTTP_PROXY:            <set to the key 'HTTP_PROXY' in secret 'quayregistry-quay-proxy-config-2bt6m898b9'>   Optional: false
            HTTPS_PROXY:           <set to the key 'HTTPS_PROXY' in secret 'quayregistry-quay-proxy-config-2bt6m898b9'>  Optional: false
            NO_PROXY:              <set to the key 'NO_PROXY' in secret 'quayregistry-quay-proxy-config-2bt6m898b9'>     Optional: false
          Mounts:
            /conf/stack from config (rw)
            /conf/stack/extra_ca_certs from extra-ca-certs (ro)
            /var/run/secrets/kubernetes.io/serviceaccount from kube-api-access-nmbqx (ro)
      Conditions:
        Type              Status
        Initialized       False 
        Ready             False 
        ContainersReady   False 
        PodScheduled      True 
      Volumes:
        config:
          Type:                Projected (a volume that contains injected data from multiple sources)
          SecretName:          quayregistry-quay-config-secret-dc24kfg5d2
          SecretOptionalName:  <nil>
          SecretName:          quayregistry-quay-config-tls-4868dk6h67
          SecretOptionalName:  <nil>
        extra-ca-certs:
          Type:                Projected (a volume that contains injected data from multiple sources)
          ConfigMapName:       quayregistry-cluster-service-ca
          ConfigMapOptional:   <nil>
          ConfigMapName:       quayregistry-cluster-trusted-ca
          ConfigMapOptional:   <nil>
          SecretName:          quayregistry-extra-ca-certs-d9b8hk6665
          SecretOptionalName:  <nil>
          SecretName:          quayregistry-quay-config-tls-4868dk6h67
          SecretOptionalName:  <nil>
        kube-api-access-nmbqx:
          Type:                    Projected (a volume that contains injected data from multiple sources)
          TokenExpirationSeconds:  3607
          ConfigMapName:           kube-root-ca.crt
          ConfigMapOptional:       <nil>
          DownwardAPI:             true
          ConfigMapName:           openshift-service-ca.crt
          ConfigMapOptional:       <nil>
      QoS Class:                   Burstable
      Node-Selectors:              <none>
      Tolerations:                 node.kubernetes.io/memory-pressure:NoSchedule op=Exists
                                   node.kubernetes.io/not-ready:NoExecute op=Exists for 300s
                                   node.kubernetes.io/unreachable:NoExecute op=Exists for 300s
      Events:
        Type     Reason          Age                  From               Message
        ----     ------          ----                 ----               -------
        Normal   Scheduled       17m                  default-scheduler  Successfully assigned quay-enterprise/quayregistry-quay-mirror-5476b49959-2qn74 to worker-00.whuipv618.qe.devcluster.openshift.com by master-01.whuipv618.qe.devcluster.openshift.com
        Normal   AddedInterface  16m                  multus             Add eth0 [fd01:0:0:4::77/64] from ovn-kubernetes
        Normal   Pulled          15m (x5 over 16m)    kubelet            Container image "registry.redhat.io/quay/quay-rhel8@sha256:a97945f7a39973f6e217ea4ecbe2fc77c81632df8104e88dc190be81d2aad3a6" already present on machine
        Normal   Created         15m (x5 over 16m)    kubelet            Created container quay-mirror-init
        Normal   Started         15m (x5 over 16m)    kubelet            Started container quay-mirror-init
        Warning  BackOff         107s (x70 over 16m)  kubelet            Back-off restarting failed container 

       

      It seems mirror pod initialization return error 7. 

      Run below test in quay pod.

      $ oc rsh quayregistry-quay-app-f9cc7dd4d-r7dgb 
      
      sh-4.4$ curl quayregistry-quay-app --connect-timeout 360
      curl: (7) Failed to connect to quayregistry-quay-app port 80: Connection refused
      
      sh-4.4$ echo $?
      7

      The information about "quayregistry-quay-app"

      $ oc describe service  quayregistry-quay-app 
      Name:              quayregistry-quay-app
      Namespace:         quay-enterprise
      Labels:            app=quay
                         quay-component=quay
                         quay-operator/quayregistry=quayregistry
      Annotations:       quay-buildmanager-hostname: 
                         quay-component: quay
                         quay-operator-service-endpoint: http://quay-operator.quay-enterprise.svc.cluster.local:7071
                         quay-registry-hostname: quayregistry-quay-quay-enterprise.apps.whuipv618.qe.devcluster.openshift.com
      Selector:          app=quay,quay-component=quay-app,quay-operator/quayregistry=quayregistry
      Type:              ClusterIP
      IP Family Policy:  SingleStack
      IP Families:       IPv6
      IP:                fd02::cb27
      IPs:               fd02::cb27
      Port:              https  443/TCP
      TargetPort:        8443/TCP
      Endpoints:         [fd01:0:0:4::78]:8443,[fd01:0:0:5::43]:8443
      Port:              http  80/TCP
      TargetPort:        8080/TCP
      Endpoints:         [fd01:0:0:4::78]:8080,[fd01:0:0:5::43]:8080
      Port:              jwtproxy  8081/TCP
      TargetPort:        8081/TCP
      Endpoints:         [fd01:0:0:4::78]:8081,[fd01:0:0:5::43]:8081
      Port:              grpc  55443/TCP
      TargetPort:        55443/TCP
      Endpoints:         [fd01:0:0:4::78]:55443,[fd01:0:0:5::43]:55443
      Session Affinity:  None
      Events:            <none>

       

            Unassigned Unassigned
            rhwhu Weihua Hu
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              Created:
              Updated: