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TELCODOCS#2536: Doc updates for multiple bugs
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srir
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openshift-cherrypick-robot
openshift-cherrypick-robot
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daf70d9e16
commit
9bb6819eb9
@@ -1,5 +1,5 @@
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[id="ztp-sno-additional-worker-node"]
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= Expanding {sno} clusters with {ztp}
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= Expanding single-node OpenShift clusters with GitOps ZTP
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include::_attributes/common-attributes.adoc[]
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:context: sno-additional-worker
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@@ -11,19 +11,26 @@ New in this release::
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* No reference design updates in this release.
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Description::
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{rh-storage} is a software-defined storage service for containers.
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{rh-storage} can be deployed in one of two modes:
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{rh-storage} is a software-defined storage service for containers. {rh-storage} can be deployed in one of two modes:
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+
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--
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* Internal mode, where {rh-storage} software components are deployed as software containers directly on the {product-title} cluster nodes, together with other containerized applications.
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* External mode, where {rh-storage} is deployed on a dedicated storage cluster, which is usually a separate Red Hat Ceph Storage cluster running on {op-system-base-full}.
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--
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+
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These storage services are running externally to the application workload cluster.
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For telco core clusters, storage support is provided by {rh-storage} storage services running in external mode, for several reasons:
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+
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--
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* Separating dependencies between {product-title} and Ceph operations allows for independent {product-title} and {rh-storage} updates.
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* Separation of operations functions for the Storage and {product-title} infrastructure layers, is a typical customer requirement for telco core use cases.
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* External Red Hat Ceph Storage clusters can be re-used by multiple {product-title} clusters deployed in the same region.
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--
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+
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--
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{rh-storage} supports separation of storage traffic using secondary CNI networks.
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--
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Limits and requirements::
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* In an IPv4/IPv6 dual-stack networking environment, {rh-storage} uses IPv4 addressing.
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@@ -20,7 +20,7 @@ ifeval::["{policy-gen-cr}" == "PolicyGenerator"]
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include::snippets/pg-ztp-worker-node-preparing-policies.adoc[]
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endif::[]
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A generic `MachineConfig` CR is used to configure workload partitioning on the worker node. You can generate the content of `crio` and `kubelet` configuration files.
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You can generate the content of `crio` and `kubelet` configuration files.
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--
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. Add the created policy template to the Git repository monitored by the ArgoCD `policies` application.
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@@ -162,7 +162,7 @@ include::modules/telco-core-gitops-operator-and-ztp-plugins.adoc[leveloffset=+3]
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* xref:../edge_computing/policygentemplate_for_ztp/ztp-advanced-policy-config.adoc#ztp-adding-new-content-to-gitops-ztp_ztp-advanced-policy-config[Adding custom content to the {ztp} pipeline]
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include::modules/telco-core-monitoring.adoc[leveloffset=+3]
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include::modules/telco-core-monitoring.adoc[leveloffset=+2]
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[role="_additional-resources"]
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.Additional resources
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@@ -31,36 +31,12 @@ policies:
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policyAnnotations:
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ran.openshift.io/ztp-deploy-wave: "10"
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manifests:
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- path: source-crs/MachineConfigGeneric.yaml <2>
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patches:
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- metadata:
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labels:
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machineconfiguration.openshift.io/role: worker <3>
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name: enable-workload-partitioning
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spec:
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config:
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storage:
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files:
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- contents:
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source: data:text/plain;charset=utf-8;base64,W2NyaW8ucnVudGltZS53b3JrbG9hZHMubWFuYWdlbWVudF0KYWN0aXZhdGlvbl9hbm5vdGF0aW9uID0gInRhcmdldC53b3JrbG9hZC5vcGVuc2hpZnQuaW8vbWFuYWdlbWVudCIKYW5ub3RhdGlvbl9wcmVmaXggPSAicmVzb3VyY2VzLndvcmtsb2FkLm9wZW5zaGlmdC5pbyIKcmVzb3VyY2VzID0geyAiY3B1c2hhcmVzIiA9IDAsICJjcHVzZXQiID0gIjAtMyIgfQo=
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mode: 420
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overwrite: true
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path: /etc/crio/crio.conf.d/01-workload-partitioning
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user:
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name: root
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- contents:
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source: data:text/plain;charset=utf-8;base64,ewogICJtYW5hZ2VtZW50IjogewogICAgImNwdXNldCI6ICIwLTMiCiAgfQp9Cg==
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mode: 420
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overwrite: true
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path: /etc/kubernetes/openshift-workload-pinning
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user:
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name: root
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- path: source-crs/PerformanceProfile-MCP-worker.yaml
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patches:
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- metadata:
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name: openshift-worker-node-performance-profile
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spec:
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cpu: <4>
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cpu: <2>
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isolated: 4-47
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reserved: 0-3
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hugepages:
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@@ -81,7 +57,7 @@ policies:
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summary=Configuration changes profile inherited from performance created tuned
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include=openshift-node-performance-openshift-worker-node-performance-profile
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[bootloader]
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cmdline_crash=nohz_full=4-47 <5>
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cmdline_crash=nohz_full=4-47 <3>
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[sysctl]
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kernel.timer_migration=1
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[scheduler]
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@@ -94,7 +70,5 @@ policies:
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- profile: performance-patch-worker
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----
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<1> The policies are applied to all clusters with this label.
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<2> This generic `MachineConfig` CR is used to configure workload partitioning on the worker node.
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<3> The `MCP` field must be set to `worker`.
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<4> The `cpu.isolated` and `cpu.reserved` fields must be configured for each particular hardware platform.
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<5> The `cmdline_crash` CPU set must match the `cpu.isolated` set in the `PerformanceProfile` section.
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<2> The `cpu.isolated` and `cpu.reserved` fields must be configured for each specific hardware platform.
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<3> The `cmdline_crash` CPU set must match the `cpu.isolated` set in the `PerformanceProfile` section.
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