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  1. OpenShift Service Mesh
  2. OSSM-2672

Clearer documentation for the defaults of "ior_enabled" & "autoscaleenabled"

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      1. Proposed title of this feature request 

      More documentation for the default settings of "ior_enabled" & "autoscaleenabled" when installing service mesh v2

      2. What is the nature and description of the request?

      The documentation once specified "ior_enabled" as "true" while "autoscaleenabled" remained "false", however, when installing service mesh V2 these appear to be incorrect unless a custom CR is defined. 

        
      3. Why does the customer need this? (List the business requirements here)

      To determine if a custom CR is needed to do a mass ansible installation and rollout.   

      4. List any affected packages or components.

      • Service Mesh V2 - istiod | pilot, citadel and galley
      • OCP 4.6 

      5. Additional Notes & Docs: 

      • Basic-install.yaml

      .: {}
      f:autoscaleEnabled: {}
      f:enabled: {}

      --
      .: {}
      f:autoscaleEnabled: {}
      f:enableProtocolSniffingForInbound: {}

      --
      istio-egressgateway:
      autoscaleEnabled: false
      enabled: true

      --
      istio-ingressgateway:
      autoscaleEnabled: false
      enabled: true

      --
      policy:
      autoscaleEnabled: false
      enabled: false

      --
      telemetry:
      autoscaleEnabled: false
      enabled: false

      --
      pilot:
      autoscaleEnabled: false
      enableProtocolSniffingForInbound: false
      ~~~
      eploying service mesh 1.x shows the following:
      ~~~
      istio-citadel-774d9f7874-zhxlt 1/1 Running 0 25m
      istio-galley-576ffc887d-mwtch 1/1 Running 0 25m
      istio-pilot-7cc44f6fcf-w7k6g 2/2 Running 0 25m
      ~~~
      1.7.6. Deploying the Red Hat OpenShift Service Mesh control plane
      https://access.redhat.com/documentation/en-us/openshift_container_platform/4.3/html-single/service_mesh/index
      service mesh 2.x deployment doc
      https://access.redhat.com/documentation/en-us/openshift_container_platform/4.6/html/service_mesh/index
      ~~~
      1.3.1. Red Hat OpenShift Service Mesh multitenant installation
      Whereas upstream Istio takes a single tenant approach, Red Hat OpenShift Service Mesh supports multiple independent control planes within the cluster.
      Red Hat OpenShift Service Mesh uses a multitenant operator to manage the control plane lifecycle.

      Red Hat OpenShift Service Mesh installs a multitenant control plane by default. You specify the projects that can access the Service Mesh, and isolate
      the Service Mesh from other control plane instances.
      ~~~
      Introduces a re-architected control plane. The Mixer component has been deprecated and will be removed in a future release.
      The other control plane components, Pilot, Galley, Citadel, have been combined into a single binary known as Istiod. The "d" stands for daemon.
      ~~~

      >>> TEST
      ServiceMesh 2.x should have no problem consolidating v1 and v2 control planes.
      Can not seem to reproduce issue:
      ~~~
      [quicklab@upi-0 ~]$ oc get pod -n openshift-operators
      NAME READY STATUS RESTARTS AGE
      istio-operator-d897f4c9b-zmtzg 1/1 Running 1 16h
      jaeger-operator-5bbcbdd998-pl8nb 1/1 Running 0 16h
      kiali-operator-cb5fdf769-fc7ld 1/1 Running 0 16h
      ~~~

              cbremble@redhat.com Claire Bremble
              rhn-support-blpowers Russell Powers
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                Created:
                Updated:
                Resolved: