Using Helm chart, demo install with default certs fails to start

OpenSearch
1

Versions (relevant - OpenSearch/Dashboard/Server OS/Browser):
OpenSearch Chart version 2.18.0, OpenSearch 2.12.0

Describe the issue:
I am utilizing the variable.yml file with a single addition of OPENSEARCH_INITIAL_ADMIN_PASSWORD

3 pods are deployed as expected, but all of them go into CrashLoopBackOff.
This is just for a quick demo purposes for some stake holders. Any insight on how to get this functional would be appreciated.

Pulling the logs from the pod, I see the following exception in all 3:

[2024-03-21T16:18:47,369][ERROR][o.o.b.OpenSearchUncaughtExceptionHandler] [opensearch-cluster-master-1] uncaught exception in thread [main]
org.opensearch.bootstrap.StartupException: java.lang.IllegalStateException: failed to load plugin class [org.opensearch.security.OpenSearchSecurityPlugin]
	at org.opensearch.bootstrap.OpenSearch.init(OpenSearch.java:185) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.OpenSearch.execute(OpenSearch.java:172) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:104) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.cli.Command.mainWithoutErrorHandling(Command.java:138) ~[opensearch-cli-2.12.0.jar:2.12.0]
	at org.opensearch.cli.Command.main(Command.java:101) ~[opensearch-cli-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.OpenSearch.main(OpenSearch.java:138) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.OpenSearch.main(OpenSearch.java:104) ~[opensearch-2.12.0.jar:2.12.0]
Caused by: java.lang.IllegalStateException: failed to load plugin class [org.opensearch.security.OpenSearchSecurityPlugin]
	at org.opensearch.plugins.PluginsService.loadPlugin(PluginsService.java:792) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.loadBundle(PluginsService.java:732) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.loadBundles(PluginsService.java:533) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.<init>(PluginsService.java:195) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.node.Node.<init>(Node.java:486) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.node.Node.<init>(Node.java:413) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:242) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap.setup(Bootstrap.java:242) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap.init(Bootstrap.java:404) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.OpenSearch.init(OpenSearch.java:181) ~[opensearch-2.12.0.jar:2.12.0]
	... 6 more
Caused by: java.lang.reflect.InvocationTargetException
	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:74) ~[?:?]
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502) ~[?:?]
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) ~[?:?]
	at org.opensearch.plugins.PluginsService.loadPlugin(PluginsService.java:783) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.loadBundle(PluginsService.java:732) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.loadBundles(PluginsService.java:533) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.<init>(PluginsService.java:195) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.node.Node.<init>(Node.java:486) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.node.Node.<init>(Node.java:413) ~[opensearch-2.12.0.jar:2.12.0]
uncaught exception in thread [main]
	at org.opensearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:242) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap.setup(Bootstrap.java:242) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap.init(Bootstrap.java:404) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.OpenSearch.init(OpenSearch.java:181) ~[opensearch-2.12.0.jar:2.12.0]
	... 6 more
Caused by: org.opensearch.OpenSearchSecurityException: Error while initializing transport SSL layer from PEM: OpenSearchException[Unable to read /usr/share/opensearch/config/esnode.pem (/usr/share/opensearch/config/esnode.pem). Please make sure this files exists and is readable regarding to permissions. Property: plugins.security.ssl.transport.pemcert_filepath]
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.initTransportSSLConfig(DefaultSecurityKeyStore.java:484) ~[?:?]
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.initSSLConfig(DefaultSecurityKeyStore.java:298) ~[?:?]
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.<init>(DefaultSecurityKeyStore.java:204) ~[?:?]
	at org.opensearch.security.ssl.OpenSearchSecuritySSLPlugin.<init>(OpenSearchSecuritySSLPlugin.java:235) ~[?:?]
	at org.opensearch.security.OpenSearchSecurityPlugin.<init>(OpenSearchSecurityPlugin.java:295) ~[?:?]
	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62) ~[?:?]
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502) ~[?:?]
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) ~[?:?]
	at org.opensearch.plugins.PluginsService.loadPlugin(PluginsService.java:783) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.loadBundle(PluginsService.java:732) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.loadBundles(PluginsService.java:533) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.<init>(PluginsService.java:195) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.node.Node.<init>(Node.java:486) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.node.Node.<init>(Node.java:413) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:242) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap.setup(Bootstrap.java:242) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap.init(Bootstrap.java:404) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.OpenSearch.init(OpenSearch.java:181) ~[opensearch-2.12.0.jar:2.12.0]
	... 6 more
Caused by: org.opensearch.OpenSearchException: Unable to read /usr/share/opensearch/config/esnode.pem (/usr/share/opensearch/config/esnode.pem). Please make sure this files exists and is readable regarding to permissions. Property: plugins.security.ssl.transport.pemcert_filepath
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.checkPath(DefaultSecurityKeyStore.java:1135) ~[?:?]
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.resolve(DefaultSecurityKeyStore.java:276) ~[?:?]
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.initTransportSSLConfig(DefaultSecurityKeyStore.java:454) ~[?:?]
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.initSSLConfig(DefaultSecurityKeyStore.java:298) ~[?:?]
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.<init>(DefaultSecurityKeyStore.java:204) ~[?:?]
	at org.opensearch.security.ssl.OpenSearchSecuritySSLPlugin.<init>(OpenSearchSecuritySSLPlugin.java:235) ~[?:?]
	at org.opensearch.security.OpenSearchSecurityPlugin.<init>(OpenSearchSecurityPlugin.java:295) ~[?:?]
	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62) ~[?:?]
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502) ~[?:?]
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486) ~[?:?]
	at org.opensearch.plugins.PluginsService.loadPlugin(PluginsService.java:783) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.loadBundle(PluginsService.java:732) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.loadBundles(PluginsService.java:533) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.plugins.PluginsService.<init>(PluginsService.java:195) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.node.Node.<init>(Node.java:486) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.node.Node.<init>(Node.java:413) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:242) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap.setup(Bootstrap.java:242) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.Bootstrap.init(Bootstrap.java:404) ~[opensearch-2.12.0.jar:2.12.0]
	at org.opensearch.bootstrap.OpenSearch.init(OpenSearch.java:181) ~[opensearch-2.12.0.jar:2.12.0]
	... 6 more
java.lang.IllegalStateException: failed to load plugin class [org.opensearch.security.OpenSearchSecurityPlugin]
Likely root cause: OpenSearchException[Unable to read /usr/share/opensearch/config/esnode.pem (/usr/share/opensearch/config/esnode.pem). Please make sure this files exists and is readable regarding to permissions. Property: plugins.security.ssl.transport.pemcert_filepath]
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.checkPath(DefaultSecurityKeyStore.java:1135)
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.resolve(DefaultSecurityKeyStore.java:276)
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.initTransportSSLConfig(DefaultSecurityKeyStore.java:454)
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.initSSLConfig(DefaultSecurityKeyStore.java:298)
	at org.opensearch.security.ssl.DefaultSecurityKeyStore.<init>(DefaultSecurityKeyStore.java:204)
	at org.opensearch.security.ssl.OpenSearchSecuritySSLPlugin.<init>(OpenSearchSecuritySSLPlugin.java:235)
	at org.opensearch.security.OpenSearchSecurityPlugin.<init>(OpenSearchSecurityPlugin.java:295)
	at java.base/jdk.internal.reflect.DirectConstructorHandleAccessor.newInstance(DirectConstructorHandleAccessor.java:62)
	at java.base/java.lang.reflect.Constructor.newInstanceWithCaller(Constructor.java:502)
	at java.base/java.lang.reflect.Constructor.newInstance(Constructor.java:486)
	at org.opensearch.plugins.PluginsService.loadPlugin(PluginsService.java:783)
	at org.opensearch.plugins.PluginsService.loadBundle(PluginsService.java:732)
	at org.opensearch.plugins.PluginsService.loadBundles(PluginsService.java:533)
	at org.opensearch.plugins.PluginsService.<init>(PluginsService.java:195)
	at org.opensearch.node.Node.<init>(Node.java:486)
	at org.opensearch.node.Node.<init>(Node.java:413)
	at org.opensearch.bootstrap.Bootstrap$5.<init>(Bootstrap.java:242)
	at org.opensearch.bootstrap.Bootstrap.setup(Bootstrap.java:242)
	at org.opensearch.bootstrap.Bootstrap.init(Bootstrap.java:404)
	at org.opensearch.bootstrap.OpenSearch.init(OpenSearch.java:181)
	at org.opensearch.bootstrap.OpenSearch.execute(OpenSearch.java:172)
	at org.opensearch.cli.EnvironmentAwareCommand.execute(EnvironmentAwareCommand.java:104)
	at org.opensearch.cli.Command.mainWithoutErrorHandling(Command.java:138)
	at org.opensearch.cli.Command.main(Command.java:101)
	at org.opensearch.bootstrap.OpenSearch.main(OpenSearch.java:138)
	at org.opensearch.bootstrap.OpenSearch.main(OpenSearch.java:104)```
2

@cdickson5 I’ve just tested vanilla OpenSearch helm charts with addition of the initial password.

extraEnvs:
#  - name: MY_ENVIRONMENT_VAR
#    value: the_value_goes_here
# Chart version 2.18.0 and App Version OpenSearch 2.12.0 onwards a custom strong password needs to be provided in order to setup demo admin user.
# Cluster will not spin-up without this unless demo config install is disabled.
  - name: OPENSEARCH_INITIAL_ADMIN_PASSWORD
    value: VMware123!

My cluster is up and running.

[opensearch@opensearch-cluster-master-2 ~]$ curl --insecure -u admin:VMware123! https://localhost:9200/_cluster/health?pretty
{
  "cluster_name" : "opensearch-cluster",
  "status" : "yellow",
  "timed_out" : false,
  "number_of_nodes" : 3,
  "number_of_data_nodes" : 3,
  "discovered_master" : true,
  "discovered_cluster_manager" : true,
  "active_primary_shards" : 4,
  "active_shards" : 4,
  "relocating_shards" : 0,
  "initializing_shards" : 0,
  "unassigned_shards" : 7,
  "delayed_unassigned_shards" : 0,
  "number_of_pending_tasks" : 0,
  "number_of_in_flight_fetch" : 0,
  "task_max_waiting_in_queue_millis" : 0,
  "active_shards_percent_as_number" : 36.36363636363637
}
[opensearch@opensearch-cluster-master-2 ~]$ curl --insecure -u admin:VMware123! https://localhost:9200/_cat/nodes
10.244.79.130 22 63 4 0.55 0.74 0.33 dimr data,ingest,master,remote_cluster_client - opensearch-cluster-master-0
10.244.79.129 54 63 4 0.55 0.74 0.33 dimr data,ingest,master,remote_cluster_client * opensearch-cluster-master-1
10.244.89.194 31 58 2 0.20 0.31 0.16 dimr data,ingest,master,remote_cluster_client - opensearch-cluster-master-2
[opensearch@opensearch-cluster-master-2 ~]$

Could you share your values.yml file? Did you make any other changes in the values.yml?
The error refers to node certificates that are inaccessible. Did you use custom certificates?

3

No other changes, except adding the password to the values.yaml, no custom certs or anything.

---
clusterName: "opensearch-cluster"
nodeGroup: "master"

# If discovery.type in the opensearch configuration is set to "single-node",
# this should be set to "true"
# If "true", replicas will be forced to 1
singleNode: false

# The service that non master groups will try to connect to when joining the cluster
# This should be set to clusterName + "-" + nodeGroup for your master group
masterService: "opensearch-cluster-master"

# OpenSearch roles that will be applied to this nodeGroup
# These will be set as environment variable "node.roles". E.g. node.roles=master,ingest,data,remote_cluster_client
roles:
  - master
  - ingest
  - data
  - remote_cluster_client

replicas: 3

# if not set, falls back to parsing .Values.imageTag, then .Chart.appVersion.
majorVersion: ""

global:
  # Set if you want to change the default docker registry, e.g. a private one.
  dockerRegistry: ""

# Allows you to add any config files in {{ .Values.opensearchHome }}/config
opensearchHome: /usr/share/opensearch

# such as opensearch.yml and log4j2.properties
config:
  # Values must be YAML literal style scalar / YAML multiline string.
  # <filename>: |
  #   <formatted-value(s)>
  # log4j2.properties: |
  #   status = error
  #
  #   appender.console.type = Console
  #   appender.console.name = console
  #   appender.console.layout.type = PatternLayout
  #   appender.console.layout.pattern = [%d{ISO8601}][%-5p][%-25c{1.}] [%node_name]%marker %m%n
  #
  #   rootLogger.level = info
  #   rootLogger.appenderRef.console.ref = console
  opensearch.yml: |
    cluster.name: opensearch-cluster

    # Bind to all interfaces because we don't know what IP address Docker will assign to us.
    network.host: 0.0.0.0

    # Setting network.host to a non-loopback address enables the annoying bootstrap checks. "Single-node" mode disables them again.
    # Implicitly done if ".singleNode" is set to "true".
    # discovery.type: single-node

    # Start OpenSearch Security Demo Configuration
    # WARNING: revise all the lines below before you go into production
    plugins:
      security:
        ssl:
          transport:
            pemcert_filepath: esnode.pem
            pemkey_filepath: esnode-key.pem
            pemtrustedcas_filepath: root-ca.pem
            enforce_hostname_verification: false
          http:
            enabled: true
            pemcert_filepath: esnode.pem
            pemkey_filepath: esnode-key.pem
            pemtrustedcas_filepath: root-ca.pem
        allow_unsafe_democertificates: true
        allow_default_init_securityindex: true
        authcz:
          admin_dn:
            - CN=kirk,OU=client,O=client,L=test,C=de
        audit.type: internal_opensearch
        enable_snapshot_restore_privilege: true
        check_snapshot_restore_write_privileges: true
        restapi:
          roles_enabled: ["all_access", "security_rest_api_access"]
        system_indices:
          enabled: true
          indices:
            [
              ".opendistro-alerting-config",
              ".opendistro-alerting-alert*",
              ".opendistro-anomaly-results*",
              ".opendistro-anomaly-detector*",
              ".opendistro-anomaly-checkpoints",
              ".opendistro-anomaly-detection-state",
              ".opendistro-reports-*",
              ".opendistro-notifications-*",
              ".opendistro-notebooks",
              ".opendistro-asynchronous-search-response*",
            ]
    ######## End OpenSearch Security Demo Configuration ########
  # log4j2.properties:

# Extra environment variables to append to this nodeGroup
# This will be appended to the current 'env:' key. You can use any of the kubernetes env
# syntax here
extraEnvs:
#  - name: MY_ENVIRONMENT_VAR
#    value: the_value_goes_here
# Chart version 2.18.0 and App Version OpenSearch 2.12.0 onwards a custom strong password needs to be provided in order to setup demo admin user.
# Cluster will not spin-up without this unless demo config install is disabled.
  - name: OPENSEARCH_INITIAL_ADMIN_PASSWORD
    value: myStrongPassword@123!

# Allows you to load environment variables from kubernetes secret or config map
envFrom: []
# - secretRef:
#     name: env-secret
# - configMapRef:
#     name: config-map

# A list of secrets and their paths to mount inside the pod
# This is useful for mounting certificates for security and for mounting
# the X-Pack license
secretMounts: []

hostAliases: []
# - ip: "127.0.0.1"
#   hostnames:
#   - "foo.local"
#   - "bar.local"

image:
  repository: "opensearchproject/opensearch"
  # override image tag, which is .Chart.AppVersion by default
  tag: ""
  pullPolicy: "IfNotPresent"

podAnnotations: {}
  # iam.amazonaws.com/role: es-cluster

# OpenSearch Statefulset annotations
openSearchAnnotations: {}

# additionals labels
labels: {}

opensearchJavaOpts: "-Xmx512M -Xms512M"

resources:
  requests:
    cpu: "1000m"
    memory: "100Mi"

initResources: {}
#  limits:
#     cpu: "25m"
#     memory: "128Mi"
#  requests:
#     cpu: "25m"
#     memory: "128Mi"

sidecarResources: {}
#   limits:
#     cpu: "25m"
#     memory: "128Mi"
#   requests:
#     cpu: "25m"
#     memory: "128Mi"

networkHost: "0.0.0.0"

rbac:
  create: false
  serviceAccountAnnotations: {}
  serviceAccountName: ""
  # Controls whether or not the Service Account token is automatically mounted to /var/run/secrets/kubernetes.io/serviceaccount
  automountServiceAccountToken: false

podSecurityPolicy:
  create: false
  name: ""
  spec:
    privileged: true
    fsGroup:
      rule: RunAsAny
    runAsUser:
      rule: RunAsAny
    seLinux:
      rule: RunAsAny
    supplementalGroups:
      rule: RunAsAny
    volumes:
      - secret
      - configMap
      - persistentVolumeClaim
      - emptyDir

persistence:
  enabled: true
  # Set to false to disable the `fsgroup-volume` initContainer that will update permissions on the persistent disk.
  enableInitChown: true
  # override image, which is busybox by default
  # image: busybox
  # override image tag, which is latest by default
  # imageTag:
  labels:
    # Add default labels for the volumeClaimTemplate of the StatefulSet
    enabled: false
  # OpenSearch 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: "-"
  accessModes:
    - ReadWriteOncePod
  size: 8Gi
  annotations: {}

extraVolumes: []
  # - name: extras
  #   emptyDir: {}

extraVolumeMounts: []
  # - name: extras
  #   mountPath: /usr/share/extras
  #   readOnly: true

extraContainers: []
  # - name: do-something
  #   image: busybox
  #   command: ['do', 'something']

extraInitContainers: []
  # - name: do-somethings
  #   image: busybox
  #   command: ['do', 'something']

# This is the PriorityClass settings as defined in
# https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
priorityClassName: ""

# By default this will make sure two pods don't end up on the same node
# Changing this to a region would allow you to spread pods across regions
antiAffinityTopologyKey: "kubernetes.io/hostname"

# Hard means that by default pods will only be scheduled if there are enough nodes for them
# and that they will never end up on the same node. Setting this to soft will do this "best effort".
# Setting this to custom will use what is passed into customAntiAffinity.
antiAffinity: "soft"

# Allows passing in custom anti-affinity settings as defined in
# https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#types-of-inter-pod-affinity-and-anti-affinity
# Using this parameter requires setting antiAffinity to custom.
customAntiAffinity: {}

# This is the node affinity settings as defined in
# https://kubernetes.io/docs/concepts/configuration/assign-pod-node/#node-affinity-beta-feature
nodeAffinity: {}

# This is the pod affinity settings as defined in
# https://kubernetes.io/docs/concepts/scheduling-eviction/assign-pod-node/#types-of-inter-pod-affinity-and-anti-affinity
podAffinity: {}

# This is the pod topology spread constraints
# https://kubernetes.io/docs/concepts/workloads/pods/pod-topology-spread-constraints/
topologySpreadConstraints: []

# The default is to deploy all pods serially. By setting this to parallel all pods are started at
# the same time when bootstrapping the cluster
podManagementPolicy: "Parallel"

# The environment variables injected by service links are not used, but can lead to slow OpenSearch boot times when
# there are many services in the current namespace.
# If you experience slow pod startups you probably want to set this to `false`.
enableServiceLinks: true

protocol: https
httpPort: 9200
transportPort: 9300
metricsPort: 9600
httpHostPort: ""
transportHostPort: ""


service:
  labels: {}
  labelsHeadless: {}
  headless:
    annotations: {}
  type: ClusterIP
  # The IP family and IP families options are to set the behaviour in a dual-stack environment
  # Omitting these values will let the service fall back to whatever the CNI dictates the defaults
  # should be
  #
  # ipFamilyPolicy: SingleStack
  # ipFamilies:
  # - IPv4
  nodePort: ""
  annotations: {}
  httpPortName: http
  transportPortName: transport
  metricsPortName: metrics
  loadBalancerIP: ""
  loadBalancerSourceRanges: []
  externalTrafficPolicy: ""

updateStrategy: RollingUpdate

# This is the max unavailable setting for the pod disruption budget
# The default value of 1 will make sure that kubernetes won't allow more than 1
# of your pods to be unavailable during maintenance
maxUnavailable: 1

podSecurityContext:
  fsGroup: 1000
  runAsUser: 1000

securityContext:
  capabilities:
    drop:
      - ALL
  # readOnlyRootFilesystem: true
  runAsNonRoot: true
  runAsUser: 1000

securityConfig:
  enabled: true
  path: "/usr/share/opensearch/config/opensearch-security"
  actionGroupsSecret:
  configSecret:
  internalUsersSecret:
  rolesSecret:
  rolesMappingSecret:
  tenantsSecret:
  # The following option simplifies securityConfig by using a single secret and
  # specifying the config files as keys in the secret instead of creating
  # different secrets for for each config file.
  # Note that this is an alternative to the individual secret configuration
  # above and shouldn't be used if the above secrets are used.
  config:
    # There are multiple ways to define the configuration here:
    # * If you define anything under data, the chart will automatically create
    #   a secret and mount it. This is best option to choose if you want to override all the
    #   existing yml files at once.
    # * If you define securityConfigSecret, the chart will assume this secret is
    #   created externally and mount it. This is best option to choose if your intention is to
    #   only update a single yml file.
    # * It is an error to define both data and securityConfigSecret.
    securityConfigSecret: ""
    dataComplete: true
    data: {}
      # config.yml: |-
      # internal_users.yml: |-
      # roles.yml: |-
      # roles_mapping.yml: |-
      # action_groups.yml: |-
      # tenants.yml: |-

# How long to wait for opensearch to stop gracefully
terminationGracePeriod: 120

sysctlVmMaxMapCount: 262144

startupProbe:
  tcpSocket:
    port: 9200
  initialDelaySeconds: 5
  periodSeconds: 10
  timeoutSeconds: 3
  failureThreshold: 30

livenessProbe: {}
  # periodSeconds: 20
  # timeoutSeconds: 5
  # failureThreshold: 10
  # successThreshold: 1
  # initialDelaySeconds: 10
  # tcpSocket:
  #   port: 9200

readinessProbe:
  tcpSocket:
    port: 9200
  periodSeconds: 5
  timeoutSeconds: 3
  failureThreshold: 3

## Use an alternate scheduler.
## ref: https://kubernetes.io/docs/tasks/administer-cluster/configure-multiple-schedulers/
##
schedulerName: ""

imagePullSecrets: []
nodeSelector: {}
tolerations: []

# Enabling this will publically expose your OpenSearch instance.
# Only enable this if you have security enabled on your cluster
ingress:
  enabled: false
  # For Kubernetes >= 1.18 you should specify the ingress-controller via the field ingressClassName
  # See https://kubernetes.io/blog/2020/04/02/improvements-to-the-ingress-api-in-kubernetes-1.18/#specifying-the-class-of-an-ingress
  # ingressClassName: nginx

  annotations: {}
    # kubernetes.io/ingress.class: nginx
    # kubernetes.io/tls-acme: "true"
  ingressLabels: {}
  path: /
  hosts:
    - chart-example.local
  tls: []
  #  - secretName: chart-example-tls
  #    hosts:
  #      - chart-example.local

nameOverride: ""
fullnameOverride: ""

masterTerminationFix: false

opensearchLifecycle: {}
  # preStop:
  #   exec:
  #     command: ["/bin/sh", "-c", "echo Hello from the preStart handler > /usr/share/message"]
  # postStart:
  #   exec:
  #     command: ["/bin/sh", "-c", "echo Hello from the postStart handler > /usr/share/message"]

lifecycle: {}
  # preStop:
  #   exec:
  #     command: ["/bin/sh", "-c", "echo Hello from the postStart handler > /usr/share/message"]
  # postStart:
  #   exec:
  #     command:
  #       - bash
  #       - -c
  #       - |
  #         #!/bin/bash
  #         # Add a template to adjust number of shards/replicas1
  #         TEMPLATE_NAME=my_template
  #         INDEX_PATTERN="logstash-*"
  #         SHARD_COUNT=8
  #         REPLICA_COUNT=1
  #         ES_URL=http://localhost:9200
  #         while [[ "$(curl -s -o /dev/null -w '%{http_code}\n' $ES_URL)" != "200" ]]; do sleep 1; done
  #         curl -XPUT "$ES_URL/_template/$TEMPLATE_NAME" -H 'Content-Type: application/json' -d'{"index_patterns":['\""$INDEX_PATTERN"\"'],"settings":{"number_of_shards":'$SHARD_COUNT',"number_of_replicas":'$REPLICA_COUNT'}}'

keystore: []
# To add secrets to the keystore:
#  - secretName: opensearch-encryption-key

networkPolicy:
  create: false
  ## Enable creation of NetworkPolicy resources. Only Ingress traffic is filtered for now.
  ## In order for a Pod to access OpenSearch, it needs to have the following label:
  ## {{ template "uname" . }}-client: "true"
  ## Example for default configuration to access HTTP port:
  ## opensearch-master-http-client: "true"
  ## Example for default configuration to access transport port:
  ## opensearch-master-transport-client: "true"

  http:
    enabled: false

# Deprecated
# please use the above podSecurityContext.fsGroup instead
fsGroup: ""

## Set optimal sysctl's through securityContext. This requires privilege. Can be disabled if
## the system has already been preconfigured. (Ex: https://www.elastic.co/guide/en/elasticsearch/reference/current/vm-max-map-count.html)
## Also see: https://kubernetes.io/docs/tasks/administer-cluster/sysctl-cluster/
sysctl:
  enabled: false

## Set optimal sysctl's through privileged initContainer.
sysctlInit:
  enabled: false
  # override image, which is busybox by default
  # image: busybox
  # override image tag, which is latest by default
  # imageTag:

## Enable to add 3rd Party / Custom plugins not offered in the default OpenSearch image.
plugins:
  enabled: false
  installList: []
  # - example-fake-plugin

# -- Array of extra K8s manifests to deploy
extraObjects: []
  # - apiVersion: secrets-store.csi.x-k8s.io/v1
  #   kind: SecretProviderClass
  #   metadata:
  #     name: argocd-secrets-store
  #   spec:
  #     provider: aws
  #     parameters:
  #       objects: |
  #         - objectName: "argocd"
  #           objectType: "secretsmanager"
  #           jmesPath:
  #               - path: "client_id"
  #                 objectAlias: "client_id"
  #               - path: "client_secret"
  #                 objectAlias: "client_secret"
  #     secretObjects:
  #     - data:
  #       - key: client_id
  #         objectName: client_id
  #       - key: client_secret
  #         objectName: client_secret
  #       secretName: argocd-secrets-store
  #       type: Opaque
  #       labels:
  #         app.kubernetes.io/part-of: argocd
  # - |
  #    apiVersion: policy/v1
  #    kind: PodDisruptionBudget
  #    metadata:
  #      name: {{ template "opensearch.uname" . }}
  #      labels:
  #        {{- include "opensearch.labels" . | nindent 4 }}
  #    spec:
  #      minAvailable: 1
  #      selector:
  #        matchLabels:
  #          {{- include "opensearch.selectorLabels" . | nindent 6 }}
4

values.yml I posted has one other change in the accessModes to ReadWriteOncePod to try to get it to work, forgot I made that change after the original post. Same behavior and error.

5

@cdickson5 I got it running with ReadWriteOncePod too.
What is your Kube provider?

I have a custom k8s cluster on Ubuntu 22 with NFS shared volume as storage.
My Kubernetes version is 1.28.3

What resources did you assign to your kube nodes (CPU, RAM, storage)?

6

k3s on rancher desktop with 8CPUs and 48GB of RAM. ARM64 (M2 Max) is base. Storage is the default, and its K8s version is 1.29.2

7

@cdickson5 Thanks for sharing the Kube details.
I’ve reproduced your issue with K3 Rancher and its default settings. I’ve got the same errors as you did.
This confirmed my assumption that the issue is related to the storage and file permissions.

If this is just POC I would suggest disabling persistent volumes.

persistence:
  enabled: false

This will stop creating PVCs and PVs in your node and OpenSearch will fully start.
I don’t have a solution for the issue itself yet. I’ll have to investigate it a bit more.

8

@cdickson5 I’ve found a solution to the permission issue.

In k3 cluster, storage provisioning is controlled by the deployment called local-path-provisioner located in the kube-system namespace.

kubectl get deployment local-path-provisioner -n kube-system

NAME                     READY   UP-TO-DATE   AVAILABLE   AGE
local-path-provisioner   1/1     1            1           110m

In the definition of this deployment, there is a config map configured as a volume that contains a path to the local path on the host.

kubectl edit deployment local-path-provisioner -n kube-system

      volumes:
      - configMap:
          defaultMode: 420
          name: local-path-config

In that config map, you’ll find the exact path to the storage location on the host.

kubectl edit configmap local-path-config -n kube-system

apiVersion: v1
data:
  config.json: |-
    {
      "nodePathMap":[
      {
        "node":"DEFAULT_PATH_FOR_NON_LISTED_NODES",
        "paths":["/var/lib/rancher/k3s/storage"]
      }
      ]
    }

My solution was to create a folder in the root filesystem with permission of the user ID 1000 and group ID 1000. The reason for the ID 1000 is that the OpenSearch user and group inside the pod have IDs 1000.

drwx------   5 pablo pablo       4096 Mar 25 12:53 kube-storage/

pablo:x:1000:1000:pablo:/home/pablo:/bin/bash
pablo:x:1000:

Then I changed the folder path in the config map.

        "paths":["/kube-storage"]

The last step was deleting the pod of the local-path-provisioner so the deployment could recreate it with a new config map value.

kubectl get pod -n kube-system
...
kube-system   local-path-provisioner-6c86858495-xkf74   1/1     Running     0          16m
...
kubectl delete pod local-path-provisioner-6c86858495-xkf74 -n kube-system
9

Thank you so much for the help. That solved the problem on a linux test server, did not solve it on my Mac but this has given me an idea about what the primary issue is. If I find the solution on Mac I will post back.

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