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OSDOCS-11789 ROSA HCP/Classic split: Prepare your environment - Including changes from OSDOCS-11640 by cherry-picking in 16db23b - Rebased against main following merge of rosa_hcp_migration branch - Corrected missing 500 node max support limit - Applied peer and merge review feedback
Squashed: 1 - Intial commit for the ROSA with HCP branch 2 - Adding the Upgrading HCP cherrypick 3 - Adding the Security HCP cherrypick 4 - Upgrading ROSA with HCP updates 5 - Updated the HCP migration to include the ROSA Tutorals and Learning sections 6 - Updated the HCP migration to add the rest of the books from the password protected preview 7 - Repaired the links in Introduction to ROSA book 8 - classic to hcp migration topic maps update commented in the end of section in topic map applied QE suggestions from gdoc applied more QE suggestions from gdoc applied conditions for new hcp distro to assemblies and modules fixed typo on line 13 of configuring registry operator replaced namespace as suggested by QE removed operator pod list removed space in rosa topic maps removed spacing in line 39 of checking status of pods
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openshift-cherrypick-robot
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@@ -50,7 +50,7 @@ The read operations allow an administrator or a developer to get information abo
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* Get information about a node, such as memory and CPU usage, health, status, and age.
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* xref:../nodes/nodes/nodes-nodes-viewing.adoc#nodes-nodes-viewing-listing-pods_nodes-nodes-viewing[List pods running on a node].
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ifndef::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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ifndef::openshift-enterprise,openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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[discrete]
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=== Management operations
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@@ -64,7 +64,7 @@ through several tasks:
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* xref:../nodes/nodes/nodes-nodes-managing-max-pods.adoc#nodes-nodes-managing-max-pods-proc_nodes-nodes-managing-max-pods[Configure the number of pods that can run on a node] based on the number of processor cores on the node, a hard limit, or both.
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* Reboot a node gracefully using xref:../nodes/nodes/nodes-nodes-rebooting.adoc#nodes-nodes-rebooting-affinity_nodes-nodes-rebooting[pod anti-affinity].
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* xref:../nodes/nodes/nodes-nodes-working.adoc#deleting-nodes[Delete a node from a cluster] by scaling down the cluster using a compute machine set. To delete a node from a bare-metal cluster, you must first drain all pods on the node and then manually delete the node.
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endif::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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endif::openshift-enterprise,openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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[discrete]
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=== Enhancement operations
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@@ -72,7 +72,6 @@ endif::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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{product-title} allows you to do more than just access and manage nodes; as an administrator, you can perform the following tasks on nodes to make the cluster more efficient, application-friendly, and to provide a better environment for your developers.
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* Manage node-level tuning for high-performance applications that require some level of kernel tuning by xref:../nodes/nodes/nodes-node-tuning-operator.adoc#nodes-node-tuning-operator[using the Node Tuning Operator].
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* xref:../nodes/jobs/nodes-pods-daemonsets.adoc#nodes-pods-daemonsets[Run background tasks on nodes automatically with daemon sets]. You can create and use daemon sets to create shared storage, run a logging pod on every node, or deploy a monitoring agent on all nodes.
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ifndef::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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* Enable TLS security profiles on the node to protect communication between the kubelet and the Kubernetes API server.
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endif::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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@@ -96,6 +95,7 @@ As an administrator, you can get information about pods in a project through the
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* xref:../nodes/pods/nodes-pods-viewing.adoc#nodes-pods-viewing-project_nodes-pods-viewing[List pods associated with a project], including information such as the number of replicas and restarts, current status, and age.
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* xref:../nodes/pods/nodes-pods-viewing.adoc#nodes-pods-viewing-usage_nodes-pods-viewing[View pod usage statistics] such as CPU, memory, and storage consumption.
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[discrete]
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=== Management operations
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@@ -145,7 +145,6 @@ As a developer, use a vertical pod autoscaler to ensure your pods stay up during
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|Administrator
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|Some applications need sensitive information, such as passwords and usernames. You can use the `Secret` object to provide such information to an application pod.
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|===
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endif::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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ifdef::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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@@ -218,12 +217,12 @@ garbage collection::
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The process of cleaning up cluster resources, such as terminated containers and images that are not referenced by any running pods.
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//cannot create the required namespace for these operators
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ifndef::openshift-rosa,openshift-dedicated[]
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ifndef::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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[discrete]
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[id="commonterms-node-hpa"]
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Horizontal Pod Autoscaler(HPA)::
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Implemented as a Kubernetes API resource and a controller. You can use the HPA to specify the minimum and maximum number of pods that you want to run. You can also specify the CPU or memory utilization that your pods should target. The HPA scales out and scales in pods when a given CPU or memory threshold is crossed.
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endif::openshift-rosa,openshift-dedicated[]
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endif::openshift-rosa,openshift-rosa-hcp,openshift-dedicated[]
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[discrete]
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[id="commonterms-node-ingress"]
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@@ -269,4 +268,4 @@ Indicates that the pod is allowed (but not required) to be scheduled on nodes or
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[discrete]
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[id="commonterms-node-taint"]
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Taint::
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A core object that comprises a key,value, and effect. Taints and tolerations work together to ensure that pods are not scheduled on irrelevant nodes.
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A core object that comprises a key, value, and effect. Taints and tolerations work together to ensure that pods are not scheduled on irrelevant nodes.
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