Docker: Readiness probe failed: Get http://10.244.2.6:80/status.php: dial tcp 10.244.2.6:80: connect: connection refused

Created on 24 Oct 2019 · 3Comments · Source: nextcloud/docker

I am using the nextcloud under the kubernetes cluster installed by helm.
The stable/nextcloud is used but the last deployment cannot start. The pod details are displayed. Readiness probe failed: Get http://10.244.2.6:80/status.php: dial tcp 10.244.2.6:80: connect: connection refused
I am very confused, I hope to get help.

This is my values.yaml profile

## Official nextcloud image version
## ref: https://hub.docker.com/r/library/nextcloud/tags/
##
image:
  repository: nextcloud
  tag: 16.0.3-apache
  pullPolicy: IfNotPresent
  # pullSecrets:
  #   - myRegistrKeySecretName

nameOverride: ""
fullnameOverride: ""

# Number of replicas to be deployed
replicaCount: 1

## Allowing use of ingress controllers
## ref: https://kubernetes.io/docs/concepts/services-networking/ingress/
##
ingress:
  enabled: false
  annotations: {}
  #  nginx.ingress.kubernetes.io/proxy-body-size: 4G
  #  kubernetes.io/tls-acme: "true"
  #  certmanager.k8s.io/cluster-issuer: letsencrypt-prod
  #  nginx.ingress.kubernetes.io/server-snippet: |-
  #    server_tokens off;
  #    proxy_hide_header X-Powered-By;

  #    rewrite ^/.well-known/webfinger /public.php?service=webfinger last;
  #    rewrite ^/.well-known/host-meta /public.php?service=host-meta last;
  #    rewrite ^/.well-known/host-meta.json /public.php?service=host-meta-json;
  #    location = /.well-known/carddav {
  #      return 301 $scheme://$host/remote.php/dav;
  #    }
  #    location = /.well-known/caldav {
  #      return 301 $scheme://$host/remote.php/dav;
  #    }
  #    location = /robots.txt {
  #      allow all;
  #      log_not_found off;
  #      access_log off;
  #    }
  #    location ~ \.(?:png|html|ttf|ico|jpg|jpeg)$ {
  #      try_files $uri /index.php$request_uri;
  #      # Optional: Don't log access to other assets
  #      access_log off;
  #    }
  #    location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)/ {
  #      deny all;
  #    }
  #    location ~ ^/(?:autotest|occ|issue|indie|db_|console) {
  #      deny all;
  #    }
  #  tls:
  #    - secretName: nextcloud-tls
  #      hosts:
  #        - nextcloud.kube.home

nextcloud:
  host: 192.168.100.150
  username: admin
  password: passwd
  update: 0
  datadir: /var/www/html/data
  tableprefix:
  mail:
    enabled: false
    fromAddress: user
    domain: domain.com
    smtp:
      host: domain.com
      secure: ssl
      port: 465
      authtype: LOGIN
      name: user
      password: pass
  # PHP Configuration files
  # Will be injected in /usr/local/etc/php/conf.d
  phpConfigs: {}
  # Default config files
  # IMPORTANT: Will be used only if you put extra configs, otherwise default will come from nextcloud itself
  # Default confgurations can be found here: https://github.com/nextcloud/docker/tree/master/16.0/apache/config
  defaultConfigs:
    # To protect /var/www/html/config
    .htaccess: true
    # Redis default configuration
    redis.config.php: true
    # Apache configuration for rewrite urls
    apache-pretty-urls.config.php: true
    # Define APCu as local cache
    apcu.config.php: true
    # Apps directory configs
    apps.config.php: true
    # Used for auto configure database
    autoconfig.php: true
    # SMTP default configuration
    smtp.config.php: true
  # Extra config files created in /var/www/html/config/
  # ref: https://docs.nextcloud.com/server/15/admin_manual/configuration_server/config_sample_php_parameters.html#multiple-config-php-file
  configs: {}

  # For example, to use S3 as primary storage
  # ref: https://docs.nextcloud.com/server/13/admin_manual/configuration_files/primary_storage.html#simple-storage-service-s3
  #
  #  configs:
  #    s3.config.php: |-
  #      <?php
  #      $CONFIG = array (
  #        'objectstore' => array(
  #          'class' => '\\OC\\Files\\ObjectStore\\S3',
  #          'arguments' => array(
  #            'bucket'     => 'my-bucket',
  #            'autocreate' => true,
  #            'key'        => 'xxx',
  #            'secret'     => 'xxx',
  #            'region'     => 'us-east-1',
  #            'use_ssl'    => true
  #          )
  #        )
  #      );

internalDatabase:
  enabled: false
  name: nextcloud

##
## External database configuration
##
externalDatabase:
  enabled: false

  ## Supported database engines: mysql or postgresql
  type: mysql

  ## Database host
  host:

  ## Database user
  user: nextcloud

  ## Database password
  password:

  ## Database name
  database: nextcloud

##
## MariaDB chart configuration
##
mariadb:
  ## Whether to deploy a mariadb server to satisfy the applications database requirements. To use an external database set this to false and configure the externalDatabase parameters
  enabled: true

  db:
    name: nextcloud
    user: admin
    password: "123456"
  replication:
    enabled: false
  ## Enable persistence using Persistent Volume Claims
  ## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
  ##
  master:
    persistence:
      enabled: true
      storageClass: nextcloud
      accessMode: ReadWriteOnce
      size: 8Gi

redis:
  enabled: false
  usePassword: false


## Cronjob to execute Nextcloud background tasks
## ref: https://docs.nextcloud.com/server/latest/admin_manual/configuration_server/background_jobs_configuration.html#cron-jobs
##
cronjob:
  enabled: false
  # Nexcloud image is used as default but only curl is needed
  image: {}
    # repository: nextcloud
    # tag: 16.0.3-apache
    # pullPolicy: IfNotPresent
    # pullSecrets:
    #   - myRegistrKeySecretName
  # Every 15 minutes
  # Note: Setting this to any any other value than 15 minutes might
  #  cause issues with how nextcloud background jobs are executed
  schedule: "*/15 * * * *"
  annotations: {}
  # Set curl's insecure option if you use e.g. self-signed certificates
  curlInsecure: false
  failedJobsHistoryLimit: 5
  successfulJobsHistoryLimit: 2
  # If not set, nextcloud deployment one will be set
  # resources:
    # We usually recommend not to specify default resources and to leave this as a conscious
    # choice for the user. This also increases chances charts run on environments with little
    # resources, such as Minikube. If you do want to specify resources, uncomment the following
    # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
    # limits:
    #  cpu: 100m
    #  memory: 128Mi
    # requests:
    #  cpu: 100m
    #  memory: 128Mi

  # If not set, nextcloud deployment one will be set
  # nodeSelector: {}

  # If not set, nextcloud deployment one will be set
  # tolerations: []

  # If not set, nextcloud deployment one will be set
  # affinity: {}

service:
  type: NodePort
  port: 8080
  loadBalancerIP: nil

## Enable persistence using Persistent Volume Claims
## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
##
persistence:
  # Nextcloud Data (/var/www/html)
  enabled: true
  annotations: {}
  ## nextcloud data Persistent Volume Storage Class
  ## If defined, storageClassName: <storageClass>
  ## If set to "-", storageClassName: "", which disables dynamic provisioning
  ## If undefined (the default) or set to null, no storageClassName spec is
  ##   set, choosing the default provisioner.  (gp2 on AWS, standard on
  ##   GKE, AWS & OpenStack)
  ##
  storageClass: "nextcloud"

  ## A manually managed Persistent Volume and Claim
  ## Requires persistence.enabled: true
  ## If defined, PVC must be created manually before volume will be bound
  # existingClaim:

  accessMode: ReadWriteOnce
  size: 8Gi

resources: {}
  # We usually recommend not to specify default resources and to leave this as a conscious
  # choice for the user. This also increases chances charts run on environments with little
  # resources, such as Minikube. If you do want to specify resources, uncomment the following
  # lines, adjust them as necessary, and remove the curly braces after 'resources:'.
  # limits:
  #  cpu: 100m
  #  memory: 128Mi
  # requests:
  #  cpu: 100m
  #  memory: 128Mi

## Liveness and readiness probe values
## Ref: https://kubernetes.io/docs/concepts/workloads/pods/pod-lifecycle/#container-probes
##
livenessProbe:
  enabled: true
  initialDelaySeconds: 30
  periodSeconds: 15
  timeoutSeconds: 5
  failureThreshold: 3
  successThreshold: 1
readinessProbe:
  enabled: true
  initialDelaySeconds: 30
  periodSeconds: 15
  timeoutSeconds: 5
  failureThreshold: 3
  successThreshold: 1

nodeSelector: {}

tolerations: []

affinity: {}

The deployment cannot be started after the installation is complete, the log shows

[root@k8s-master ~]# kubectl logs -f nextcloud-76b78c795f-s9kv8 -n nextcloud
Initializing nextcloud 16.0.3.0 ...

The probe tells me

Events:
  Type     Reason     Age                From                Message
  ----     ------     ----               ----                -------
  Normal   Scheduled  66s                default-scheduler   Successfully assigned nextcloud/nextcloud-76b78c795f-s9kv8 to k8s-node2
  Normal   Pulled     65s                kubelet, k8s-node2  Container image "nextcloud:16.0.3-apache" already present on machine
  Normal   Created    64s                kubelet, k8s-node2  Created container nextcloud
  Normal   Started    63s                kubelet, k8s-node2  Started container nextcloud
  Warning  Unhealthy  11s (x2 over 26s)  kubelet, k8s-node2  Liveness probe failed: Get http://10.244.2.199:80/status.php: dial tcp 10.244.2.199:80: connect: connection refused
  Warning  Unhealthy  1s (x3 over 31s)   kubelet, k8s-node2  Readiness probe failed: Get http://10.244.2.199:80/status.php: dial tcp 10.244.2.199:80: connect: connection refused

I want to know why I can't connect to port 80?
How to solve this problem?
I am using stable/nextcloud installed by helm.
Helm version is v2.14.1
Tiller version is v2.14.1
Kubeadm version is v1.15.1

Source