helm-nifi
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20 hours ago •
cetic
cetic
Local persistent volume issue when running multiple replicas
I'm using the following configuration to set up my nifi cluster. The only changes I made are to the image versions and I'm setting up my own storage class in order to use my own volumes.
# Number of nifi nodes
replicaCount: 2
## Set default image, imageTag, and imagePullPolicy.
## ref: https://hub.docker.com/r/apache/nifi/
##
image:
repository: apache/nifi
tag: "latest"
pullPolicy: "IfNotPresent"
## Optionally specify an imagePullSecret.
## Secret must be manually created in the namespace.
## ref: https://kubernetes.io/docs/tasks/configure-pod-container/pull-image-private-registry/
##
# pullSecret: myRegistrKeySecretName
securityContext:
runAsUser: 1000
fsGroup: 1000
## @param useHostNetwork - boolean - optional
## Bind ports on the hostNetwork. Useful for CNI networking where hostPort might
## not be supported. The ports need to be available on all hosts. It can be
## used for custom metrics instead of a service endpoint.
##
## WARNING: Make sure that hosts using this are properly firewalled otherwise
## metrics and traces are accepted from any host able to connect to this host.
#
sts:
# Parallel podManagementPolicy for faster bootstrap and teardown. Default is OrderedReady.
podManagementPolicy: Parallel
AntiAffinity: soft
useHostNetwork: null
hostPort: null
pod:
annotations:
security.alpha.kubernetes.io/sysctls: net.ipv4.ip_local_port_range=10000 65000
#prometheus.io/scrape: "true"
serviceAccount:
create: false
#name: nifi
annotations: {}
hostAliases: []
# - ip: "1.2.3.4"
# hostnames:
# - example.com
# - example
startupProbe:
enabled: false
failureThreshold: 60
periodSeconds: 10
## Useful if using any custom secrets
## Pass in some secrets to use (if required)
# secrets:
# - name: myNifiSecret
# keys:
# - key1
# - key2
# mountPath: /opt/nifi/secret
## Useful if using any custom configmaps
## Pass in some configmaps to use (if required)
# configmaps:
# - name: myNifiConf
# keys:
# - myconf.conf
# mountPath: /opt/nifi/custom-config
properties:
# https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#nifi_sensitive_props_key
sensitiveKey: changeMechangeMe # Must have at least 12 characters
# NiFi assumes conf/nifi.properties is persistent but this helm chart
# recreates it every time. Setting the Sensitive Properties Key
# (nifi.sensitive.props.key) is supposed to happen at the same time
# /opt/nifi/data/flow.xml.gz sensitive properties are encrypted. If that
# doesn't happen then NiFi won't start because decryption fails.
# So if sensitiveKeySetFile is configured but doesn't exist, assume
# /opt/nifi/flow.xml.gz hasn't been encrypted and follow the procedure
# https://nifi.apache.org/docs/nifi-docs/html/administration-guide.html#updating-the-sensitive-properties-key
# to simultaneously encrypt it and set nifi.sensitive.props.key.
# sensitiveKeySetFile: /opt/nifi/data/sensitive-props-key-applied
# If sensitiveKey was already set, then pass in sensitiveKeyPrior with the old key.
# sensitiveKeyPrior: OldPasswordToChangeFrom
algorithm: NIFI_PBKDF2_AES_GCM_256
# use externalSecure for when inbound SSL is provided by nginx-ingress or other external mechanism
externalSecure: false
isNode: false
httpsPort: 8443
webProxyHost: # <clusterIP>:<NodePort> (If Nifi service is NodePort or LoadBalancer)
clusterPort: 6007
provenanceStorage: "8 GB"
siteToSite:
port: 10000
# use properties.safetyValve to pass explicit 'key: value' pairs that overwrite other configuration
safetyValve:
#nifi.variable.registry.properties: "${NIFI_HOME}/example1.properties, ${NIFI_HOME}/example2.properties"
nifi.web.http.network.interface.default: eth0
# listen to loopback interface so "kubectl port-forward ..." works
nifi.web.http.network.interface.lo: lo
## Include aditional processors
# customLibPath: "/opt/configuration_resources/custom_lib"
## Include additional libraries in the Nifi containers by using the postStart handler
## ref: https://kubernetes.io/docs/tasks/configure-pod-container/attach-handler-lifecycle-event/
# postStart: /opt/nifi/psql; wget -P /opt/nifi/psql https://jdbc.postgresql.org/download/postgresql-42.2.6.jar
# Nifi User Authentication
auth:
# If set while LDAP is enabled, this value will be used for the initial admin and not the ldap bind dn / admin
admin: CN=admin, OU=NIFI
SSL:
keystorePasswd: changeMe
truststorePasswd: changeMe
# Automaticaly disabled if OIDC or LDAP enabled
singleUser:
username: username
password: changemechangeme # Must to have at least 12 characters
clientAuth:
enabled: false
ldap:
enabled: false
host: #ldap://<hostname>:<port>
searchBase: #CN=Users,DC=ldap,DC=example,DC=be
admin: #cn=admin,dc=ldap,dc=example,dc=be
pass: #ChangeMe
searchFilter: (objectClass=*)
userIdentityAttribute: cn
authStrategy: SIMPLE # How the connection to the LDAP server is authenticated. Possible values are ANONYMOUS, SIMPLE, LDAPS, or START_TLS.
identityStrategy: USE_DN
authExpiration: 12 hours
userSearchScope: ONE_LEVEL # Search scope for searching users (ONE_LEVEL, OBJECT, or SUBTREE). Required if searching users.
groupSearchScope: ONE_LEVEL # Search scope for searching groups (ONE_LEVEL, OBJECT, or SUBTREE). Required if searching groups.
oidc:
enabled: false
discoveryUrl: #http://<oidc_provider_address>:<oidc_provider_port>/auth/realms/<client_realm>/.well-known/openid-configuration
clientId: #<client_name_in_oidc_provider>
clientSecret: #<client_secret_in_oidc_provider>
claimIdentifyingUser: email
admin: [email protected]
## Request additional scopes, for example profile
additionalScopes:
openldap:
enabled: false
persistence:
enabled: true
env:
LDAP_ORGANISATION: # name of your organization e.g. "Example"
LDAP_DOMAIN: # your domain e.g. "ldap.example.be"
LDAP_BACKEND: "hdb"
LDAP_TLS: "true"
LDAP_TLS_ENFORCE: "false"
LDAP_REMOVE_CONFIG_AFTER_SETUP: "false"
adminPassword: #ChengeMe
configPassword: #ChangeMe
customLdifFiles:
1-default-users.ldif: |-
# You can find an example ldif file at https://github.com/cetic/fadi/blob/master/examples/basic/example.ldif
## Expose the nifi service to be accessed from outside the cluster (LoadBalancer service).
## or access it from within the cluster (ClusterIP service). Set the service type and the port to serve it.
## ref: http://kubernetes.io/docs/user-guide/services/
##
# headless service
headless:
type: ClusterIP
annotations:
service.alpha.kubernetes.io/tolerate-unready-endpoints: "true"
# ui service
service:
type: ClusterIP
httpsPort: 8443
# nodePort: 30236
annotations: {}
# loadBalancerIP:
## Load Balancer sources
## https://kubernetes.io/docs/tasks/access-application-cluster/configure-cloud-provider-firewall/#restrict-access-for-loadbalancer-service
##
# loadBalancerSourceRanges:
# - 10.10.10.0/24
## OIDC authentication requires "sticky" session on the LoadBalancer for JWT to work properly...but AWS doesn't like it on creation
# sessionAffinity: ClientIP
# sessionAffinityConfig:
# clientIP:
# timeoutSeconds: 10800
# Enables additional port/ports to nifi service for internal processors
processors:
enabled: false
ports:
- name: processor01
port: 7001
targetPort: 7001
#nodePort: 30701
- name: processor02
port: 7002
targetPort: 7002
#nodePort: 30702
## Configure Ingress based on the documentation here: https://kubernetes.io/docs/concepts/services-networking/ingress/
##
ingress:
enabled: false
# className: nginx
annotations: {}
tls: []
hosts: []
path: /
# If you want to change the default path, see this issue https://github.com/cetic/helm-nifi/issues/22
# Amount of memory to give the NiFi java heap
jvmMemory: 8g
# Separate image for tailing each log separately and checking zookeeper connectivity
sidecar:
image: busybox
tag: "latest"
imagePullPolicy: "IfNotPresent"
## Enable persistence using Persistent Volume Claims
## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
##
persistence:
enabled: true
# When creating persistent storage, the NiFi helm chart can either reference an already-defined
# storage class by name, such as "standard" or can define a custom storage class by specifying
# customStorageClass: true and providing the "storageClass", "storageProvisioner" and "storageType".
# For example, to use SSD storage on Google Compute Engine see values-gcp.yaml
#
# To use a storage class that already exists on the Kubernetes cluster, we can simply reference it by name.
# For example:
storageClass: nifi-storage
#
# The default storage class is used if this variable is not set.
accessModes: [ReadWriteOnce]
## Storage Capacities for persistent volumes
configStorage:
size: 100Mi
authconfStorage:
size: 100Mi
# Storage capacity for the 'data' directory, which is used to hold things such as the flow.xml.gz, configuration, state, etc.
dataStorage:
size: 1Gi
# Storage capacity for the FlowFile repository
flowfileRepoStorage:
size: 10Gi
# Storage capacity for the Content repository
contentRepoStorage:
size: 10Gi
# Storage capacity for the Provenance repository. When changing this, one should also change the properties.provenanceStorage value above, also.
provenanceRepoStorage:
size: 10Gi
# Storage capacity for nifi logs
logStorage:
size: 5Gi
## Configure resource requests and limits
## ref: http://kubernetes.io/docs/user-guide/compute-resources/
##
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
logresources:
requests:
cpu: 10m
memory: 10Mi
limits:
cpu: 50m
memory: 50Mi
## Enables setting your own affinity. Mutually exclusive with sts.AntiAffinity
## You need to set the value of sts.AntiAffinity other than "soft" and "hard"
affinity: {}
nodeSelector: {}
tolerations: []
initContainers: {}
# foo-init: # <- will be used as container name
# image: "busybox:1.30.1"
# imagePullPolicy: "IfNotPresent"
# command: ['sh', '-c', 'echo this is an initContainer']
# volumeMounts:
# - mountPath: /tmp/foo
# name: foo
extraVolumeMounts: []
extraVolumes: []
## Extra containers
extraContainers: []
terminationGracePeriodSeconds: 30
## Extra environment variables that will be pass onto deployment pods
env: []
## Extra environment variables from secrets and config maps
envFrom: []
# envFrom:
# - configMapRef:
# name: config-name
# - secretRef:
# name: mysecret
## Openshift support
## Use the following varables in order to enable Route and Security Context Constraint creation
openshift:
scc:
enabled: false
route:
enabled: false
#host: www.test.com
#path: /nifi
# ca server details
# Setting this true would create a nifi-toolkit based ca server
# The ca server will be used to generate self-signed certificates required setting up secured cluster
ca:
## If true, enable the nifi-toolkit certificate authority
enabled: false
persistence:
enabled: true
server: ""
service:
port: 9090
token: sixteenCharacters
admin:
cn: admin
serviceAccount:
create: false
#name: nifi-ca
openshift:
scc:
enabled: false
# cert-manager support
# Setting this true will have cert-manager create a private CA for the cluster
# as well as the certificates for each cluster node.
certManager:
enabled: false
clusterDomain: cluster.local
keystorePasswd: changeme
truststorePasswd: changeme
replaceDefaultTrustStore: false
additionalDnsNames:
- localhost
refreshSeconds: 300
resources:
requests:
cpu: 100m
memory: 128Mi
limits:
cpu: 100m
memory: 128Mi
# cert-manager takes care of rotating the node certificates, so default
# their lifetime to 90 days. But when the CA expires you may need to
# 'helm delete' the cluster, delete all the node certificates and secrets,
# and then 'helm install' the NiFi cluster again. If a site-to-site trusted
# CA or a NiFi Registry CA certificate expires, you'll need to restart all
# pods to pick up the new version of the CA certificate. So default the CA
# lifetime to 10 years to avoid that happening very often.
# c.f. https://github.com/cert-manager/cert-manager/issues/2478#issuecomment-1095545529
certDuration: 2160h
caDuration: 87660h
# ------------------------------------------------------------------------------
# Zookeeper:
# ------------------------------------------------------------------------------
zookeeper:
## If true, install the Zookeeper chart
## ref: https://github.com/bitnami/charts/blob/master/bitnami/zookeeper/values.yaml
enabled: true
## If the Zookeeper Chart is disabled a URL and port are required to connect
url: ""
port: 2181
replicaCount: 3
# ------------------------------------------------------------------------------
# Nifi registry:
# ------------------------------------------------------------------------------
registry:
## If true, install the Nifi registry
enabled: true
url: ""
port: 80
## Add values for the nifi-registry here
## ref: https://github.com/dysnix/charts/blob/master/nifi-registry/values.yaml
# Configure metrics
metrics:
prometheus:
# Enable Prometheus metrics
enabled: false
# Port used to expose Prometheus metrics
port: 9092
serviceMonitor:
# Enable deployment of Prometheus Operator ServiceMonitor resource
enabled: false
# namespace: monitoring
# Additional labels for the ServiceMonitor
labels: {}
I have the volumes set up as follows:
apiVersion: v1
kind: PersistentVolume
metadata:
name: logs
spec:
capacity:
storage: 5Gi
accessModes:
- ReadWriteOnce
persistentVolumeReclaimPolicy: Retain
storageClassName: nifi-storage
claimRef:
name: logs-nifi-0
local:
path: path
nodeAffinity:
required:
nodeSelectorTerms:
- matchExpressions:
- key: kubernetes.io/hostname
operator: In
values:
- docker-desktop
The problem I'm having is that the pods sporadically shut down because they conflict when trying to access the database repo. And I get this error.
2023-01-19 18:21:56,017 WARN [main] org.apache.nifi.web.server.JettyServer Failed to start web server... shutting down.
org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.springframework.security.config.annotation.web.configuration.WebSecurityConfiguration': Unsatisfied dependency expressed through method 'setFilterChains' parameter 0; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'securityFilterChain' defined in org.apache.nifi.web.NiFiWebApiSecurityConfiguration: Unsatisfied dependency expressed through method 'securityFilterChain' parameter 2; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'org.apache.nifi.web.security.configuration.JwtAuthenticationSecurityConfiguration': Unsatisfied dependency expressed through constructor parameter 2; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'idpUserGroupService' defined in class path resource [nifi-administration-context.xml]: Cannot resolve reference to bean 'idpTransactionBuilder' while setting bean property 'transactionBuilder'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'idpTransactionBuilder' defined in class path resource [nifi-administration-context.xml]: Cannot resolve reference to bean 'idpDataSource' while setting bean property 'dataSource'; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'idpDataSource': FactoryBean threw exception on object creation; nested exception is org.h2.jdbc.JdbcSQLNonTransientConnectionException: Database may be already in use: "/opt/nifi/data/database_repository/nifi-identity-providers.mv.db". Possible solutions: close all other connection(s); use the server mode [90020-214]
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.resolveMethodArguments(AutowiredAnnotationBeanPostProcessor.java:767)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor$AutowiredMethodElement.inject(AutowiredAnnotationBeanPostProcessor.java:719)
at org.springframework.beans.factory.annotation.InjectionMetadata.inject(InjectionMetadata.java:119)
at org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor.postProcessProperties(AutowiredAnnotationBeanPostProcessor.java:399)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.populateBean(AbstractAutowireCapableBeanFactory.java:1431)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:619)
at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:542)
at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:335)
at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234)
at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:333)
at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:208)
at org.springframework.beans.factory.support.DefaultListableBeanFactory.preInstantiateSingletons(DefaultListableBeanFactory.java:955)
at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:918)
at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:583)
at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:401)
at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:292)
at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:103)
at org.eclipse.jetty.server.handler.ContextHandler.callContextInitialized(ContextHandler.java:1073)
at org.eclipse.jetty.servlet.ServletContextHandler.callContextInitialized(ServletContextHandler.java:572)
at org.eclipse.jetty.server.handler.ContextHandler.contextInitialized(ContextHandler.java:1002)
at org.eclipse.jetty.servlet.ServletHandler.initialize(ServletHandler.java:765)
at org.eclipse.jetty.servlet.ServletContextHandler.startContext(ServletContextHandler.java:379)
at org.eclipse.jetty.webapp.WebAppContext.startWebapp(WebAppContext.java:1449)
at org.eclipse.jetty.webapp.WebAppContext.startContext(WebAppContext.java:1414)
at org.eclipse.jetty.server.handler.ContextHandler.doStart(ContextHandler.java:916)
at org.eclipse.jetty.servlet.ServletContextHandler.doStart(ServletContextHandler.java:288)
at org.eclipse.jetty.webapp.WebAppContext.doStart(WebAppContext.java:524)
at org.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:73)
at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:169)
I believed enabling the nifi registry would resolve this issue but that's not been the case. Any help on this is appreciated. Thank you.
