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TELCODOCS-2005: Add topics to Telco Day 2 Troubleshooting and Maintenance
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Alexandra Molnar
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openshift-cherrypick-robot
openshift-cherrypick-robot
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1b1f51c014
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:_mod-docs-content-type: ASSEMBLY
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[id="telco-troubleshooting-bmn-maintenance"]
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= Bare-metal node maintenance
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include::_attributes/common-attributes.adoc[]
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:context: telco-troubleshooting-bmn-maintenance
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toc::[]
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You can connect to a node for general troubleshooting.
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However, in some cases, you need to perform troubleshooting or maintenance tasks on certain hardware components.
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This section discusses topics that you need to perform that hardware maintenance.
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include::modules/telco-troubleshooting-bmn-connect-to-node.adoc[leveloffset=+1]
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include::modules/telco-troubleshooting-bmn-move-apps-to-pods.adoc[leveloffset=+1]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../../nodes/nodes/nodes-nodes-working.adoc#nodes-nodes-working_nodes-nodes-working[Working with nodes]
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include::modules/telco-troubleshooting-bmn-replace-dimm.adoc[leveloffset=+1]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../../storage/index.adoc#storage-overview_storage-overview[{product-title} storage overview]
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include::modules/telco-troubleshooting-bmn-replace-disk.adoc[leveloffset=+1]
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include::modules/telco-troubleshooting-bmn-replace-nw-card.adoc[leveloffset=+1]
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@@ -0,0 +1,66 @@
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:_mod-docs-content-type: ASSEMBLY
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[id="telco-troubleshooting-cert-maintenance"]
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= Certificate maintenance
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include::_attributes/common-attributes.adoc[]
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:context: telco-troubleshooting-cert-maintenance
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toc::[]
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Certificate maintenance is required for continuous cluster authentication.
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As a cluster administrator, you must manually renew certain certificates, while others are automatically renewed by the cluster.
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Learn about certificates in {product-title} and how to maintain them by using the following resources:
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* link:https://access.redhat.com/solutions/5018231[Which OpenShift certificates do rotate automatically and which do not in Openshift 4.x?]
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* link:https://access.redhat.com/solutions/7000968[Checking etcd certificate expiry in OpenShift 4]
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include::modules/telco-troubleshooting-certs-manual.adoc[leveloffset=+1]
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include::modules/telco-troubleshooting-certs-manual-proxy.adoc[leveloffset=+2]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../../security/certificate_types_descriptions/proxy-certificates.adoc#cert-types-proxy-certificates[Proxy certificates]
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include::modules/telco-troubleshooting-certs-manual-user-provisioned.adoc[leveloffset=+2]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../../security/certificate_types_descriptions/user-provided-certificates-for-api-server.adoc#cert-types-user-provided-certificates-for-the-api-server[User-provisioned certificates for the API server]
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include::modules/telco-troubleshooting-certs-auto.adoc[leveloffset=+1]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../../security/certificate_types_descriptions/service-ca-certificates.adoc#cert-types-service-ca-certificates_cert-types-service-ca-certificates[Service CA certificates]
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* xref:../../../security/certificate_types_descriptions/node-certificates.adoc#cert-types-node-certificates_cert-types-node-certificates[Node certificates]
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* xref:../../../security/certificate_types_descriptions/bootstrap-certificates.adoc#cert-types-bootstrap-certificates_cert-types-bootstrap-certificates[Bootstrap certificates]
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* xref:../../../security/certificate_types_descriptions/etcd-certificates.adoc#cert-types-etcd-certificates-cert-types-etcd-certificates[etcd certificates]
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* xref:../../../security/certificate_types_descriptions/olm-certificates.adoc#cert-types-olm-certificates_cert-types-olm-certificates[OLM certificates]
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* xref:../../../security/certificate_types_descriptions/machine-config-operator-certificates.adoc#cert-types-machine-config-operator-certificates_cert-types-machine-config-operator-certificates[Machine Config Operator certificates]
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* xref:../../../security/certificate_types_descriptions/monitoring-and-cluster-logging-operator-component-certificates.adoc#cert-types-monitoring-and-cluster-logging-operator-component-certificates_cert-types-monitoring-and-cluster-logging-operator-component-certificates[Monitoring and cluster logging Operator component certificates]
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* xref:../../../security/certificate_types_descriptions/control-plane-certificates.adoc#cert-types-control-plane-certificates_cert-types-control-plane-certificates[Control plane certificates]
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* xref:../../../security/certificate_types_descriptions/ingress-certificates.adoc#cert-types-ingress-certificates_cert-types-ingress-certificates[Ingress certificates]
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include::modules/telco-troubleshooting-certs-auto-etcd.adoc[leveloffset=+2]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../../security/certificate_types_descriptions/etcd-certificates.adoc#cert-types-etcd-certificates_cert-types-etcd-certificates[etcd certificates]
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include::modules/telco-troubleshooting-certs-auto-node.adoc[leveloffset=+2]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../../security/certificate_types_descriptions/node-certificates.adoc#cert-types-node-certificates_cert-types-node-certificates[Node certificates]
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include::modules/telco-troubleshooting-certs-auto-service-ca.adoc[leveloffset=+2]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../../security/certificate_types_descriptions/service-ca-certificates.adoc#cert-types-service-ca-certificates_cert-types-service-ca-certificates[Service CA certificates]
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:_mod-docs-content-type: ASSEMBLY
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[id="telco-troubleshooting-mco"]
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= Machine Config Operator
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include::_attributes/common-attributes.adoc[]
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:context: telco-troubleshooting-mco
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toc::[]
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The Machine Config Operator provides useful information to cluster administrators and controls what is running directly on the bare-metal host.
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The Machine Config Operator differentiates between different groups of nodes in the cluster, allowing control plane nodes and worker nodes to run with different configurations.
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These groups of nodes run worker or application pods, which are called `MachineConfigPool` (`mcp`) groups.
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The same machine config is applied on all nodes or only on one MCP in the cluster.
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For more information about how and why to apply MCPs in a telco core cluster, see xref:../../../edge_computing/day_2_core_cnf_clusters/updating/telco-update-ocp-update-prep.adoc#telco-update-applying-mcp-labels-to-nodes-before-the-update_ocp-update-prep[Applying MachineConfigPool labels to nodes before the update].
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For more information about the Machine Config Operator, see xref:../../../operators/operator-reference.adoc#machine-config-operator_cluster-operators-ref[Machine Config Operator].
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include::modules/telco-troubleshooting-mco-purpose.adoc[leveloffset=+1]
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include::modules/telco-troubleshooting-mco-apply-several-mcs.adoc[leveloffset=+1]
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@@ -0,0 +1,16 @@
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:_mod-docs-content-type: ASSEMBLY
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[id="telco-troubleshooting-security"]
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= Security
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include::_attributes/common-attributes.adoc[]
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:context: telco-troubleshooting-security
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toc::[]
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Implementing a robust cluster security profile is important for building resilient telco networks.
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include::modules/telco-troubleshooting-security-authentication.adoc[leveloffset=+1]
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[role="_additional-resources"]
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.Additional resources
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* xref:../../../authentication/understanding-identity-provider.adoc#supported-identity-providers[Supported identity providers]
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