global.yaml

# Global and common settings for installing Istio.

# This file is configured for a small scale production cluster.
# Use user-values-medium or custom settings to tune up the CPU and scalling.
# Additional values overrides can be used.

# Each individual component will use values from this file, with defaults and 'advanced' settings included in
# its own chart's values.yaml.

# TODO: trim this file to commonly used settings, leave 'advanced' in the individual values.yaml (they can
# still be overridden by users, but won't show in basic documentation.

# This doesn't match istio defaults, which are more geared towards tests and bookinfo.

global:
  # Used to locate istio-pilot.
  # Default is to install pilot in a dedicated namespace, istio-pilot11. You can use multiple namespaces, but
  # for each 'profile' you need to match the control plane namespace and the value of istioNamespace
  # It is assumed that istio-system is running either 1.0 or an upgraded version of 1.1, but only security components are
  # used (citadel generating the secrets).
  istioNamespace: istio-control
  configNamespace: istio-control

  # Telemetry namespace, including tracing.
  telemetryNamespace: istio-telemetry
 
  prometheusNamespace: istio-telemetry

  policyNamespace: istio-policy


  ## End new settings
  ## After this line we have the old Istio settings.

  # Default hub for Istio images.
  # Releases are published to docker hub under 'istio' project.
  # Daily builds from prow are on gcr.io, and nightly builds from circle on docker.io/istionightly
  hub: gcr.io/istio-release

  # Default tag for Istio images.
  tag: master-latest-daily

  # Comma-separated minimum per-scope logging level of messages to output, in the form of <scope>:<level>,<scope>:<level>
  # The control plane has different scopes depending on component, but can configure default log level across all components
  # If empty, default scope and level will be used as configured in code
  logging:
    level: "default:info"

  k8sIngress:
    enabled: false
    # Gateway used for k8s Ingress resources. By default it is
    # using 'istio:ingressgateway' that will be installed by setting
    # 'gateways.enabled' and 'gateways.istio-ingressgateway.enabled'
    # flags to true.
    gatewayName: ingressgateway
    # enableHttps will add port 443 on the ingress.
    # It REQUIRES that the certificates are installed  in the
    # expected secrets - enabling this option without certificates
    # will result in LDS rejection and the ingress will not work.
    enableHttps: false

  proxy:
    image: proxyv2

    # cluster domain. Default value is "cluster.local".
    clusterDomain: "cluster.local"

    # Resources for the sidecar.
    resources:
      requests:
        cpu: 100m
        memory: 128Mi
      limits:
        cpu: 2000m
        memory: 128Mi

    # Controls number of Proxy worker threads.
    # If set to 0 (default), then start worker thread for each CPU thread/core.
    concurrency: 2

    # Configures the access log for each sidecar.
    # Options:
    #   "" - disables access log
    #   "/dev/stdout" - enables access log
    accessLogFile: ""

    # Configure how and what fields are displayed in sidecar access log. Setting to
    # empty string will result in default log format
    accessLogFormat: ""

    # Configure the access log for sidecar to JSON or TEXT.
    accessLogEncoding: TEXT

    # Log level for proxy, applies to gateways and sidecars.
    # Expected values are: trace|debug|info|warning|error|critical|off
    logLevel: warning

    # Per Component log level for proxy, applies to gateways and sidecars. If a component level is
    # not set, then the global "logLevel" will be used.
    componentLogLevel: "misc:error"

    # Configure the DNS refresh rate for Envoy cluster of type STRICT_DNS
    # This must be given it terms of seconds. For example, 300s is valid but 5m is invalid.
    dnsRefreshRate: 300s

    #If set to true, istio-proxy container will have privileged securityContext
    privileged: false

    # If set, newly injected sidecars will have core dumps enabled.
    enableCoreDump: false

    # Default port for Pilot agent health checks. A value of 0 will disable health checking.
    statusPort: 15020

    # The initial delay for readiness probes in seconds.
    readinessInitialDelaySeconds: 1

    # The period between readiness probes.
    readinessPeriodSeconds: 2

    # The number of successive failed probes before indicating readiness failure.
    readinessFailureThreshold: 30

    # istio egress capture whitelist
    # https://istio.io/docs/tasks/traffic-management/egress.html#calling-external-services-directly
    # example: includeIPRanges: "172.30.0.0/16,172.20.0.0/16"
    # would only capture egress traffic on those two IP Ranges, all other outbound traffic would
    # be allowed by the sidecar
    includeIPRanges: "*"
    excludeIPRanges: ""
    excludeOutboundPorts: ""

    # pod internal interfaces
    kubevirtInterfaces: ""

    # istio ingress capture whitelist
    # examples:
    #     Redirect no inbound traffic to Envoy:    --includeInboundPorts=""
    #     Redirect all inbound traffic to Envoy:   --includeInboundPorts="*"
    #     Redirect only selected ports:            --includeInboundPorts="80,8080"
    includeInboundPorts: "*"
    excludeInboundPorts: ""

    # This controls the 'policy' in the sidecar injector.
    autoInject: enabled

    # Sets the destination Statsd in envoy (the value of the "--statsdUdpAddress" proxy argument
    # would be <host>:<port>).
    # Disabled by default.
    # The istio-statsd-prom-bridge is deprecated and should not be used moving forward.
    envoyStatsd:
      # If enabled is set to true, host and port must also be provided. Istio no longer provides a statsd collector.
      enabled: false
      host: # example: statsd-svc.istio-system
      port: # example: 9125

    # Sets the Envoy Metrics Service address, used to push Envoy metrics to an external collector
    # via the Metrics Service gRPC API. This contains detailed stats information emitted directly
    # by Envoy and should not be confused with the the Istio telemetry. The Envoy stats are also
    # available to scrape via the Envoy admin port at either /stats or /stats/prometheus.
    #
    # See https://www.envoyproxy.io/docs/envoy/latest/api-v2/config/metrics/v2/metrics_service.proto
    # for details about Envoy's Metrics Service API. 
    #
    # Disabled by default.
    envoyMetricsService:
      enabled: false
      host: # example: metrics-service.istio-system
      port: # example: 15000

    # Specify which tracer to use. One of: lightstep, zipkin, datadog
    tracer: "zipkin"

  proxy_init:
    # Base name for the proxy_init container, used to configure iptables.
    image: proxy_init

  # imagePullPolicy is applied to istio control plane components.
  # local tests require IfNotPresent, to avoid uploading to dockerhub.
  # TODO: Switch to Always as default, and override in the local tests.
  imagePullPolicy: Always

  # controlPlaneMtls enabled. Will result in delays starting the pods while secrets are
  # propagated, not recommended for tests.
  controlPlaneSecurityEnabled: true

  # disablePolicyChecks disables mixer policy checks.
  # if mixer.policy.enabled==true then disablePolicyChecks has affect.
  # Will set the value with same name in istio config map - pilot needs to be restarted to take effect.
  disablePolicyChecks: true

  # policyCheckFailOpen allows traffic in cases when the mixer policy service cannot be reached.
  # Default is false which means the traffic is denied when the client is unable to connect to Mixer.
  policyCheckFailOpen: false

  # EnableTracing sets the value with same name in istio config map, requires pilot restart to take effect.
  enableTracing: true

  # Configuration for each of the supported tracers
  tracer:
    # Configuration for envoy to send trace data to LightStep.
    # Disabled by default.
    # address: the <host>:<port> of the satellite pool
    # accessToken: required for sending data to the pool
    # secure: specifies whether data should be sent with TLS
    # cacertPath: the path to the file containing the cacert to use when verifying TLS. If secure is true, this is
    #   required. If a value is specified then a secret called "lightstep.cacert" must be created in the destination
    #   namespace with the key matching the base of the provided cacertPath and the value being the cacert itself.
    #
    lightstep:
      address: ""                # example: lightstep-satellite:443
      accessToken: ""            # example: abcdefg1234567
      secure: true               # example: true|false
      cacertPath: ""             # example: /etc/lightstep/cacert.pem
    zipkin:
      # Host:Port for reporting trace data in zipkin format. If not specified, will default to
      # zipkin service (port 9411) in the same namespace as the other istio components.
      address: ""
    datadog:
      # Host:Port for submitting traces to the Datadog agent.
      address: "$(HOST_IP):8126"

  # Default mtls policy. If true, mtls between services will be enabled by default.
  mtls:
    # Default setting for service-to-service mtls. Can be set explicitly using
    # destination rules or service annotations.
    enabled: false

  # ImagePullSecrets for all ServiceAccount, list of secrets in the same namespace
  # to use for pulling any images in pods that reference this ServiceAccount.
  # For components that don't use ServiceAccounts (i.e. grafana, servicegraph, tracing)
  # ImagePullSecrets will be added to the corresponding Deployment(StatefulSet) objects.
  # Must be set for any clustser configured with private docker registry.
  imagePullSecrets:
    # - private-registry-key

  # Specify pod scheduling arch(amd64, ppc64le, s390x) and weight as follows:
  #   0 - Never scheduled
  #   1 - Least preferred
  #   2 - No preference
  #   3 - Most preferred
  arch:
    amd64: 2
    s390x: 2
    ppc64le: 2

  # Whether to restrict the applications namespace the controller manages;
  # If not set, controller watches all namespaces
  oneNamespace: false

  # Default node selector to be applied to all deployments so that all pods can be 
  # constrained to run a particular nodes. Each component can overwrite these default 
  # values by adding its node selector block in the relevant section below and setting 
  # the desired values.
  defaultNodeSelector: {}

  # Whether to perform server-side validation of configuration.
  configValidation: true

  # Custom DNS config for the pod to resolve names of services in other
  # clusters. Use this to add additional search domains, and other settings.
  # see
  # https://kubernetes.io/docs/concepts/services-networking/dns-pod-service/#dns-config
  # This does not apply to gateway pods as they typically need a different
  # set of DNS settings than the normal application pods (e.g., in
  # multicluster scenarios).
  # NOTE: If using templates, follow the pattern in the commented example below.
  #podDNSSearchNamespaces:
  #- global
  #- "[[ valueOrDefault .DeploymentMeta.Namespace \"default\" ]].global"

  # If set to true, the pilot and citadel mtls will be exposed on the
  # ingress gateway
  meshExpansion:
    enabled: false
    # If set to true, the pilot and citadel mtls and the plain text pilot ports
    # will be exposed on an internal gateway
    useILB: false

  multiCluster:
    # Set to true to connect two kubernetes clusters via their respective
    # ingressgateway services when pods in each cluster cannot directly
    # talk to one another. All clusters should be using Istio mTLS and must
    # have a shared root CA for this model to work.
    enabled: false

  # A minimal set of requested resources to applied to all deployments so that
  # Horizontal Pod Autoscaler will be able to function (if set).
  # Each component can overwrite these default values by adding its own resources
  # block in the relevant section below and setting the desired resources values.
  defaultResources:
    requests:
      cpu: 10m
    #   memory: 128Mi
    # limits:
    #   cpu: 100m
    #   memory: 128Mi

  # enable pod distruption budget for the control plane, which is used to
  # ensure Istio control plane components are gradually upgraded or recovered.
  defaultPodDisruptionBudget:
    enabled: true
    # The values aren't mutable due to a current PodDisruptionBudget limitation
    # minAvailable: 1

  # Kubernetes >=v1.11.0 will create two PriorityClass, including system-cluster-critical and
  # system-node-critical, it is better to configure this in order to make sure your Istio pods
  # will not be killed because of low priority class.
  # Refer to https://kubernetes.io/docs/concepts/configuration/pod-priority-preemption/#priorityclass
  # for more detail.
  priorityClassName: ""

  # Use the Mesh Control Protocol (MCP) for configuring Mixer and
  # Pilot. Requires galley (`--set galley.enabled=true`).
  useMCP: true

  # The trust domain corresponds to the trust root of a system
  # Refer to https://github.com/spiffe/spiffe/blob/master/standards/SPIFFE-ID.md#21-trust-domain
  # Indicate the domain used in SPIFFE identity URL
  # The default depends on the environment.
  #   kubernetes: cluster.local
  #   else:  default dns domain
  trustDomain: ""

  # Set the default behavior of the sidecar for handling outbound traffic from the application:
  # ALLOW_ANY - outbound traffic to unknown destinations will be allowed, in case there are no
  #   services or ServiceEntries for the destination port
  # REGISTRY_ONLY - restrict outbound traffic to services defined in the service registry as well
  #   as those defined through ServiceEntries
  # ALLOW_ANY is the default in 1.1.  This means each pod will be able to make outbound requests 
  # to services outside of the mesh without any ServiceEntry.
  # REGISTRY_ONLY was the default in 1.0.  If this behavior is desired, set the value below to REGISTRY_ONLY.
  outboundTrafficPolicy:
    mode: ALLOW_ANY

  # The namespace where globally shared configurations should be present.
  # DestinationRules that apply to the entire mesh (e.g., enabling mTLS),
  # default Sidecar configs, etc. should be added to this namespace.
  # configRootNamespace: istio-config

  # set the default set of namespaces to which services, service entries, virtual services, destination
  # rules should be exported to. Currently only one value can be provided in this list. This value
  # should be one of the following two options:
  # * implies these objects are visible to all namespaces, enabling any sidecar to talk to any other sidecar.
  # . implies these objects are visible to only to sidecars in the same namespace, or if imported as a Sidecar.egress.host  
  #defaultConfigVisibilitySettings:
  #- '*'

  sds:
    # SDS enabled. IF set to true, mTLS certificates for the sidecars will be
    # distributed through the SecretDiscoveryService instead of using K8S secrets to mount the certificates.
    enabled: false
    udsPath: ""
    useTrustworthyJwt: false
    useNormalJwt: false

  # Configure the mesh networks to be used by the Split Horizon EDS.
  #
  # The following example defines two networks with different endpoints association methods.
  # For `network1` all endpoints that their IP belongs to the provided CIDR range will be
  # mapped to network1. The gateway for this network example is specified by its public IP
  # address and port.
  # The second network, `network2`, in this example is defined differently with all endpoints
  # retrieved through the specified Multi-Cluster registry being mapped to network2. The
  # gateway is also defined differently with the name of the gateway service on the remote
  # cluster. The public IP for the gateway will be determined from that remote service (not
  # supported yet).
  #
  # meshNetworks:
  #   network1:
  #     endpoints:
  #     - fromCidr: "192.168.0.1/24"
  #     gateways:
  #     - address: 1.1.1.1
  #       port: 80
  #   network2:
  #     endpoints:
  #     - fromRegistry: reg1
  #     gateways:
  #     - registryServiceName: istio-ingressgateway
  #       port: 443
  #
  meshNetworks: {}

  # Specifies the global locality load balancing settings.
  # Locality-weighted load balancing allows administrators to control the distribution of traffic to
  # endpoints based on the localities of where the traffic originates and where it will terminate.
  # Please set either failover or distribute configuration but not both.
  #
  # localityLbSetting:
  #   distribute:
  #   - from: "us-central1/*"
  #     to:
  #       "us-central1/*": 80
  #       "us-central2/*": 20
  #
  # localityLbSetting:
  #   failover:
  #   - from: us-east
  #     to: eu-west
  #   - from: us-west
  #     to: us-east
  localityLbSetting: {}

  # Specifies whether helm test is enabled or not.
  # This field is set to false by default, so 'helm template ...'
  # will ignore the helm test yaml files when generating the template
  enableHelmTest: false