title stringlengths 4 168 | content stringlengths 7 1.74M | commands listlengths 1 5.62k ⌀ | url stringlengths 79 342 |
|---|---|---|---|
Chapter 4. Deploying Red Hat Quay on infrastructure nodes | Chapter 4. Deploying Red Hat Quay on infrastructure nodes By default, Quay related pods are placed on arbitrary worker nodes when using the Red Hat Quay Operator to deploy the registry. For more information about how to use machine sets to configure nodes to only host infrastructure components, see Creating infrastruct... | [
"oc get nodes",
"NAME STATUS ROLES AGE VERSION user1-jcnp6-master-0.c.quay-devel.internal Ready master 3h30m v1.20.0+ba45583 user1-jcnp6-master-1.c.quay-devel.internal Ready master 3h30m v1.20.0+ba45583 user1-jcnp6-master-2.c.quay-devel.internal Ready master 3h30m v1.20.0+ba45583 user1-jcnp6-worker-b-65plj.c.quay... | https://docs.redhat.com/en/documentation/red_hat_quay/3.10/html/red_hat_quay_operator_features/operator-deploy-infrastructure |
2.2. Performance | 2.2. Performance Older virtualization versions supported only a single CPU. As a result, virtual machines experienced noticeable performance limitations. This created a long-lasting misconception that virtualization solutions are slow. This is no longer the case. Modern virtualization technology has greatly improved th... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/virtualization_getting_started_guide/sec-virtualization_getting_started-advantages-performance |
Chapter 13. Provisioning cloud instances on Red Hat OpenStack Platform | Chapter 13. Provisioning cloud instances on Red Hat OpenStack Platform Red Hat OpenStack Platform provides the foundation to build a private or public Infrastructure-as-a-Service (IaaS) cloud. It offers a massively scalable, fault-tolerant platform for the development of cloud-enabled workloads. In Satellite, you can i... | [
"hammer compute-resource create --name \" My_OpenStack \" --provider \"OpenStack\" --description \" My OpenStack environment at openstack.example.com \" --url \" http://openstack.example.com :5000/v3/auth/tokens\" --user \" My_Username \" --password \" My_Password \" --tenant \" My_Openstack \" --domain \" My_User_... | https://docs.redhat.com/en/documentation/red_hat_satellite/6.15/html/provisioning_hosts/Provisioning_Cloud_Instances_OpenStack_openstack-provisioning |
3.6. XML Extensions | 3.6. XML Extensions JBoss Data Virtualization provides some XML extensions defined in org.teiid.jdbc.ExecutionProperties : PROP_XML_FORMAT (defined as XMLFormat) PROP_XML_VALIDATION (defined as XMLValidation) Note These extensions apply to XML results from queries to XML document models, but not to XML produced by SQL/... | null | https://docs.redhat.com/en/documentation/red_hat_jboss_data_virtualization/6.4/html/development_guide_volume_1_client_development/xml_extensions1 |
Chapter 14. Managing bare metal hosts | Chapter 14. Managing bare metal hosts When you install OpenShift Container Platform on a bare metal cluster, you can provision and manage bare metal nodes using machine and machineset custom resources (CRs) for bare metal hosts that exist in the cluster. 14.1. About bare metal hosts and nodes To provision a Red Hat Ent... | [
"apiVersion: metal3.io/v1alpha1 kind: BareMetalHost metadata: name: <bare_metal_host_name> spec: online: true bmc: address: <bmc_address> credentialsName: <secret_credentials_name> 1 disableCertificateVerification: True bootMACAddress: <host_boot_mac_address> hardwareProfile: unknown",
"oc annotate machineset <ma... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.7/html/scalability_and_performance/managing-bare-metal-hosts |
Chapter 7. DaemonSet [apps/v1] | Chapter 7. DaemonSet [apps/v1] Description DaemonSet represents the configuration of a daemon set. Type object 7.1. Specification Property Type Description apiVersion string APIVersion defines the versioned schema of this representation of an object. Servers should convert recognized schemas to the latest internal valu... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/workloads_apis/daemonset-apps-v1 |
Chapter 8. Verifying connectivity to an endpoint | Chapter 8. Verifying connectivity to an endpoint The Cluster Network Operator (CNO) runs a controller, the connectivity check controller, that performs a connection health check between resources within your cluster. By reviewing the results of the health checks, you can diagnose connection problems or eliminate networ... | [
"oc get podnetworkconnectivitycheck -n openshift-network-diagnostics",
"NAME AGE network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-kubernetes-apiserver-endpoint-ci-ln-x5sv9rb-f76d1-4rzrp-master-0 75m network-check-source-ci-ln-x5sv9rb-f76d1-4rzrp-worker-b-6xdmh-to-kubernetes-apiserver-endpoint-ci-l... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.10/html/networking/verifying-connectivity-endpoint |
Chapter 4. Scaling storage of bare metal OpenShift Data Foundation cluster | Chapter 4. Scaling storage of bare metal OpenShift Data Foundation cluster To scale the storage capacity of your configured Red Hat OpenShift Data Foundation worker nodes on your bare metal cluster, you can increase the capacity by adding three disks at a time. Three disks are needed since OpenShift Data Foundation use... | [
"oc get -n openshift-storage -o=custom-columns=NODE:.spec.nodeName pod/ <OSD-pod-name>",
"oc get -n openshift-storage -o=custom-columns=NODE:.spec.nodeName pod/rook-ceph-osd-0-544db49d7f-qrgqm",
"NODE compute-1",
"oc debug node/ <node-name>",
"chroot /host",
"lsblk",
"oc get nodes --show-labels | grep c... | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.14/html/scaling_storage/scaling_storage_of_bare_metal_openshift_data_foundation_cluster |
function::sid | function::sid Name function::sid - Returns the session ID of the current process Synopsis Arguments None Description The session ID of a process is the process group ID of the session leader. Session ID is stored in the signal_struct since Kernel 2.6.0. | [
"sid:long()"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/systemtap_tapset_reference/api-sid |
Chapter 3. What's changed in Eclipse Vert.x 4 | Chapter 3. What's changed in Eclipse Vert.x 4 This section explains the fundamental differences between Eclipse Vert.x 4 and 3.x releases. 3.1. Use future methods for asynchronous operations Eclipse Vert.x 4 uses futures for asynchronous operations. Every callback method has a corresponding future method. Futures can b... | [
"WebClient client = WebClient.create(vertx); HttpRequest request = client.get(\"/resource\"); request.send(ar -> { if (ar.succeeded()) { HttpResponse response = ar.result(); } else { Throwable error = ar.cause(); } });",
"WebClient client = WebClient.create(vertx); HttpRequest request = client.get(\"/resource\");... | https://docs.redhat.com/en/documentation/red_hat_build_of_eclipse_vert.x/4.3/html/eclipse_vert.x_4.3_migration_guide/what-is-new-and-different-in-vertx-4_vertx |
Chapter 3. Python Examples | Chapter 3. Python Examples 3.1. Overview This section provides examples demonstrating the steps to create a virtual machine within a basic Red Hat Virtualization environment, using the Python SDK. These examples use the ovirtsdk Python library provided by the ovirt-engine-sdk-python package. This package is available t... | [
"pydoc ovirtsdk.infrastructure.errors",
"from ovirtsdk.api import API",
"from ovirtsdk.api import API api = API ( url=\"https://engine.example.com\", username=\"admin@internal\", password=\"password\", ca_file=\"ca.crt\") api.test() print(\"Connected successfully!\") api.disconnect()",
"pydoc ovirtsdk.api",
... | https://docs.redhat.com/en/documentation/red_hat_virtualization/4.3/html/python_sdk_guide/chap-Python_Examples |
Chapter 3. Upgrading RHCS 5 to RHCS 6 involving RHEL 8 to RHEL 9 upgrades | Chapter 3. Upgrading RHCS 5 to RHCS 6 involving RHEL 8 to RHEL 9 upgrades Upgrade from Red Hat Ceph Storage 5 to Red Hat Ceph Storage 6. The upgrade includes an upgrade from Red Hat Enterprise Linux 8 to Red Hat Enterprise Linux 9. Important Upgrade to the latest version of Red Hat Ceph Storage 5.3.z5 prior to upgradin... | null | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/6/html/upgrade_guide/upgrading-rhcs5-to-rhcs6-involving-rhel8-to-rhel9-upgrades_upgrade |
5.349. virt-manager | 5.349. virt-manager 5.349.1. RHBA-2012:0785 - virt-manager bug fix and enhancement update Updated virt-manager packages that fix multiple bugs and add one enhancement are now available for Red Hat Enterprise Linux 6. The Virtual Machine Manager (virt-manager) is a graphical tool for administering Kernel-based Virtual M... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.3_technical_notes/virt-manager |
probe::socket.recvmsg | probe::socket.recvmsg Name probe::socket.recvmsg - Message being received on socket Synopsis Values protocol Protocol value flags Socket flags value name Name of this probe state Socket state value size Message size in bytes type Socket type value family Protocol family value Context The message receiver. Description F... | [
"socket.recvmsg"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/systemtap_tapset_reference/api-socket-recvmsg |
Chapter 8. Remote worker nodes on the network edge | Chapter 8. Remote worker nodes on the network edge 8.1. Using remote worker nodes at the network edge You can configure OpenShift Container Platform clusters with nodes located at your network edge. In this topic, they are called remote worker nodes . A typical cluster with remote worker nodes combines on-premise maste... | [
"tolerations: - key: node.kubernetes.io/not-ready operator: Exists effect: NoExecute - key: node.kubernetes.io/unreachable operator: Exists effect: NoExecute - key: node.kubernetes.io/disk-pressure operator: Exists effect: NoSchedule - key: node.kubernetes.io/memory-pressure operator: Exists effect: NoSchedule - ke... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.9/html/nodes/remote-worker-nodes-on-the-network-edge |
Chapter 4. Certification testing | Chapter 4. Certification testing The certification testing briefs about the prerequisites for testing, understanding the certification process, and its requirements. 4.1. Prerequistes for certification testing Bare-metal certification The corresponding RHEL server certification is successfully completed and posted. The... | null | https://docs.redhat.com/en/documentation/red_hat_hardware_certification/2025/html/red_hat_openstack_platform_hardware_bare_metal_certification_policy_guide/assembly-certification-testing_rhosp-bm-pol-certification-lifecycle |
Chapter 3. Tuned | Chapter 3. Tuned 3.1. Tuned Overview Tuned is a daemon that uses udev to monitor connected devices and statically and dynamically tunes system settings according to a selected profile. Tuned is distributed with a number of predefined profiles for common use cases like high throughput, low latency, or powersave. It is p... | [
"cmdline = arg 1 arg 2 ... arg n .",
"install tuned",
"systemctl start tuned",
"systemctl enable tuned",
"tuned-adm",
"tuned-adm list",
"tuned-adm active",
"tuned-adm profile profile",
"tuned-adm profile powersave",
"tuned-adm profile virtual-guest powersave",
"tuned-adm recommend",
"tuned --h... | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/performance_tuning_guide/chap-Red_Hat_Enterprise_Linux-Performance_Tuning_Guide-Tuned |
18.16. Storage Devices | 18.16. Storage Devices You can install Red Hat Enterprise Linux on a large variety of storage devices. You can see basic, locally accessible, storage devices in the Installation Destination page, as described in Section 18.15, "Installation Destination" . To add a specialized storage device, click the Add a disk button... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/installation_guide/sect-storage-devices-s390 |
Chapter 6. Troubleshooting upgrade error messages | Chapter 6. Troubleshooting upgrade error messages The following table shows some cephadm upgrade error messages. If the cephadm upgrade fails for any reason, an error message appears in the storage cluster health status. Error Message Description UPGRADE_NO_STANDBY_MGR Ceph requires both active and standby manager daem... | null | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/8/html/upgrade_guide/troubleshooting-upgrade-error-messages_upgrade |
Chapter 14. AWS S3 Streaming upload Sink | Chapter 14. AWS S3 Streaming upload Sink Upload data to AWS S3 in streaming upload mode. 14.1. Configuration Options The following table summarizes the configuration options available for the aws-s3-streaming-upload-sink Kamelet: Property Name Description Type Default Example accessKey * Access Key The access key obtai... | [
"apiVersion: camel.apache.org/v1alpha1 kind: KameletBinding metadata: name: aws-s3-streaming-upload-sink-binding spec: source: ref: kind: Channel apiVersion: messaging.knative.dev/v1 name: mychannel sink: ref: kind: Kamelet apiVersion: camel.apache.org/v1alpha1 name: aws-s3-streaming-upload-sink properties: accessK... | https://docs.redhat.com/en/documentation/red_hat_build_of_apache_camel_k/1.10.7/html/kamelets_reference/aws-s3-streaming-upload-sink |
Block Device to OpenStack Guide | Block Device to OpenStack Guide Red Hat Ceph Storage 6 Configuring Ceph, QEMU, libvirt and OpenStack to use Ceph as a back end for OpenStack. Red Hat Ceph Storage Documentation Team | null | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/6/html/block_device_to_openstack_guide/index |
5.3.2. Profiling Cache Usage with Cachegrind | 5.3.2. Profiling Cache Usage with Cachegrind Cachegrind simulates your program's interaction with a machine's cache hierarchy and (optionally) branch predictor. It tracks usage of the simulated first-level instruction and data caches to detect poor code interaction with this level of cache; and the last-level cache, wh... | [
"valgrind --tool=cachegrind program",
"cg_annotate cachegrind.out. pid",
"cg_diff first second"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/performance_tuning_guide/ch05s03s02 |
Configuring authentication for Red Hat Satellite users | Configuring authentication for Red Hat Satellite users Red Hat Satellite 6.16 Configure authentication for Satellite users and enable authentication features such as SSO, OTP, or 2FA Red Hat Satellite Documentation Team satellite-doc-list@redhat.com | [
"https:// satellite.example.com /",
"hostname -f",
"https:// satellite.example.com /pub",
"scp /var/www/html/pub/katello-server-ca.crt username@hostname:remotefile",
"foreman-rake permissions:reset Reset to user: admin, password: qwJxBptxb7Gfcjj5",
"vi ~/.hammer/cli.modules.d/foreman.yml",
"foreman-rake... | https://docs.redhat.com/en/documentation/red_hat_satellite/6.16/html-single/configuring_authentication_for_red_hat_satellite_users/index |
Service Mesh | Service Mesh OpenShift Container Platform 4.12 Service Mesh installation, usage, and release notes Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.12/html/service_mesh/index |
Chapter 2. Support requirements | Chapter 2. Support requirements Review this section to ensure that your planned deployment meets the requirements for support by Red Hat. 2.1. Operating system Red Hat Hyperconverged Infrastructure for Virtualization (RHHI for Virtualization) uses Red Hat Virtualization Host 4.4 as a base for all other configuration. R... | [
"blockdev --getss <disk_path>"
] | https://docs.redhat.com/en/documentation/red_hat_hyperconverged_infrastructure_for_virtualization/1.8/html/deploying_red_hat_hyperconverged_infrastructure_for_virtualization/rhhi-requirements |
16.3. Setting up Squid as a Caching Proxy With Kerberos Authentication | 16.3. Setting up Squid as a Caching Proxy With Kerberos Authentication This section describes a basic configuration of Squid as a caching proxy that authenticates users to an Active Directory (AD) using Kerberos. The procedure configures that only authenticated users can use the proxy. Prerequisites The procedure assum... | [
"yum install squid krb5-workstation",
"kinit administrator@ AD.EXAMPLE.COM",
"export KRB5_KTNAME=FILE:/etc/squid/HTTP.keytab net ads keytab CREATE -U administrator",
"net ads keytab ADD HTTP -U administrator",
"chown squid /etc/squid/HTTP.keytab",
"klist -k /etc/squid/HTTP.keytab Keytab name: FILE:/etc/sq... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/networking_guide/setting-up-squid-as-a-caching-proxy-with-kerberos-authentication |
Chapter 1. Customizing your taxonomy tree | Chapter 1. Customizing your taxonomy tree You can modify the taxonomy tree with knowledge data in your RHEL AI environment to create your own custom Granite Large Language Model (LLM). On RHEL AI, knowledge data sets are formatted in YAML. This YAML configuration is called a qna.yaml file, where "qna" stands for questi... | [
"Phoenix (constellation) **Phoenix** is a minor [constellation](constellation \"wikilink\") in the [southern sky](southern_sky \"wikilink\"). Named after the mythical [phoenix](Phoenix_(mythology) \"wikilink\"), it was first depicted on a celestial atlas by [Johann Bayer](Johann_Bayer \"wikilink\") in his 1603 *[Ur... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux_ai/1.1/html/creating_a_custom_llm_using_rhel_ai/customize_taxonomy_tree |
Chapter 2. Enable Basic authentication | Chapter 2. Enable Basic authentication Enable Basic authentication for your Quarkus project and allow users to authenticate with a username and password. 2.1. Prerequisites You have installed at least one extension that provides an IdentityProvider based on username and password. For example: Quarkus Security Jakarta P... | [
"quarkus.http.auth.basic=true",
"security.users.embedded.enabled=true",
"quarkus.http.auth.basic=true quarkus.security.users.embedded.enabled=true quarkus.security.users.embedded.plain-text=true quarkus.security.users.embedded.users.alice=alice 1 quarkus.security.users.embedded.users.bob=bob 2 quarkus.security.... | https://docs.redhat.com/en/documentation/red_hat_build_of_quarkus/3.8/html/basic_authentication/security-basic-authentication-howto |
3.9. Relatime Drive Access Optimization | 3.9. Relatime Drive Access Optimization The POSIX standard requires that operating systems maintain file system metadata that records when each file was last accessed. This timestamp is called atime , and maintaining it requires a constant series of write operations to storage. These writes keep storage devices and the... | null | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/power_management_guide/relatime |
Chapter 94. Additional resources | Chapter 94. Additional resources Getting started with case management Getting started with decision services Designing a decision service using DMN models Developing Solvers with Red Hat Decision Manager Predictions 2019: Expect A Pragmatic Vision Of AI | null | https://docs.redhat.com/en/documentation/red_hat_decision_manager/7.13/html/developing_decision_services_in_red_hat_decision_manager/additional_resources_4 |
Automating SAP HANA Scale-Up System Replication using the RHEL HA Add-On | Automating SAP HANA Scale-Up System Replication using the RHEL HA Add-On Red Hat Enterprise Linux for SAP Solutions 8 Red Hat Customer Content Services | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux_for_sap_solutions/8/html/automating_sap_hana_scale-up_system_replication_using_the_rhel_ha_add-on/index |
Chapter 4. Extending the JDBC Translator | Chapter 4. Extending the JDBC Translator 4.1. Extensions New custom Translators can be created by extending the JDBC Translator. This is one of the most common use-cases for custom Translator development and is often done to add support for JDBC drivers and database versions. To design a JDBC Translator for any relatio... | null | https://docs.redhat.com/en/documentation/red_hat_jboss_data_virtualization/6.4/html/development_guide_volume_4_server_development/chap-extending_the_jdbc_translator |
Chapter 5. Customizing the Tech Radar page in Red Hat Developer Hub | Chapter 5. Customizing the Tech Radar page in Red Hat Developer Hub In Red Hat Developer Hub, the Tech Radar page is provided by the tech-radar dynamic plugin, which is disabled by default. For information about enabling dynamic plugins in Red Hat Developer Hub see Configuring plugins in Red Hat Developer Hub . In Red ... | [
"proxy: endpoints: # Other Proxies # customize developer hub instance '/developer-hub': target: <DOMAIN_URL> # i.e https://raw.githubusercontent.com/ pathRewrite: '^/api/proxy/developer-hub/tech-radar': <path to json file> # i.e /janus-idp/backstage-showcase/main/packages/app/public/tech-radar/data-default.json '^/... | https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.2/html/getting_started_with_red_hat_developer_hub/proc-customize-rhdh-tech-radar-page_rhdh-getting-started |
Chapter 4. Migrating Templates deployments on Openshift | Chapter 4. Migrating Templates deployments on Openshift OpenShift templates were deprecated and removed from the Red Hat build of Keycloak container images. Using the Operator is the recommended alternative for deploying Red Hat build of Keycloak on OpenShift. Note OpenShift 3.x is no longer supported. You will general... | [
"apiVersion: k8s.keycloak.org/v2alpha1 kind: Keycloak metadata: name: rhbk spec: instances: 1 db: vendor: postgres host: postgres-db usernameSecret: name: keycloak-db-secret key: username passwordSecret: name: keycloak-db-secret key: password http: tlsSecret: sso-x509-https-secret",
"apiVersion: apps.openshift.io... | https://docs.redhat.com/en/documentation/red_hat_build_of_keycloak/26.0/html/migration_guide/migrating-openshift |
Chapter 21. Project [config.openshift.io/v1] | Chapter 21. Project [config.openshift.io/v1] Description Project holds cluster-wide information about Project. The canonical name is cluster Compatibility level 1: Stable within a major release for a minimum of 12 months or 3 minor releases (whichever is longer). Type object Required spec 21.1. Specification Property T... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.13/html/config_apis/project-config-openshift-io-v1 |
Chapter 7. Kernel crash dump guide | Chapter 7. Kernel crash dump guide 7.1. Introduction to kdump 7.1.1. About kdump and kexec kdump is a service which provides a crash dumping mechanism. The service enables you to save the contents of the system memory for analysis. kdump uses the kexec system call to boot into the second kernel (a capture kernel ) with... | [
"uname -m",
"yum install kexec-tools",
"rpm -q kexec-tools",
"yum install system-config-kdump",
"crashkernel=128M",
"crashkernel=128M",
"crashkernel=512M-2G:64M,2G-:128M",
"crashkernel=128M@16M",
"path /var/crash",
"grep -v ^# etc/kdump.conf | grep -v ^USD ext4 /dev/mapper/vg00-varcrashvol path /v... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/kernel_administration_guide/kernel_crash_dump_guide |
1.2. Conga | 1.2. Conga Conga is an integrated set of software components that provides centralized configuration and management of Red Hat clusters and storage. Conga provides the following major features: One Web interface for managing cluster and storage Automated Deployment of Cluster Data and Supporting Packages Easy Integrati... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/4/html/cluster_administration/s1-conga-overview-ca |
Chapter 3. Managing roles on dashboard | Chapter 3. Managing roles on dashboard As a storage administrator, you can create, view, edit, and delete roles on the dashboard. You can give permissions to the roles and you can assign specific roles for users. 3.1. Creating roles on dashboard The dashboard allows you to create roles on the dashboard which can be ass... | null | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/4/html/dashboard_guide/managing-roles-on-dashboard |
Chapter 8. Config map reference for the Cluster Monitoring Operator | Chapter 8. Config map reference for the Cluster Monitoring Operator 8.1. Cluster Monitoring Operator configuration reference Parts of OpenShift Container Platform cluster monitoring are configurable. The API is accessible by setting parameters defined in various config maps. To configure monitoring components, edit the... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.17/html/monitoring/config-map-reference-for-the-cluster-monitoring-operator |
Chapter 10. Migrating your applications | Chapter 10. Migrating your applications You can migrate your applications by using the Migration Toolkit for Containers (MTC) web console or from the command line . You can use stage migration and cutover migration to migrate an application between clusters: Stage migration copies data from the source cluster to the ta... | [
"oc get -n openshift-migration route/migration -o go-template='https://{{ .spec.host }}'",
"oc sa get-token migration-controller -n openshift-migration",
"eyJhbGciOiJSUzI1NiIsImtpZCI6IiJ9.eyJpc3MiOiJrdWJlcm5ldGVzL3NlcnZpY2VhY2NvdW50Iiwia3ViZXJuZXRlcy5pby9zZXJ2aWNlYWNjb3VudC9uYW1lc3BhY2UiOiJtaWciLCJrdWJlcm5ldGVz... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.11/html/migrating_from_version_3_to_4/migrating-applications-3-4 |
Providing feedback on Red Hat documentation | Providing feedback on Red Hat documentation We appreciate your feedback on our documentation. Let us know how we can improve it. Submitting feedback through Jira (account required) Log in to the Jira website. Click Create in the top navigation bar Enter a descriptive title in the Summary field. Enter your suggestion fo... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/managing_software_with_the_dnf_tool/proc_providing-feedback-on-red-hat-documentation_managing-software-with-the-dnf-tool |
Developer Guide | Developer Guide Red Hat Ceph Storage 6 Using the various application programming interfaces for Red Hat Ceph Storage Red Hat Ceph Storage Documentation Team | null | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/6/html/developer_guide/index |
Chapter 5. Troubleshooting the installation | Chapter 5. Troubleshooting the installation 5.1. Troubleshooting the installation program workflow Before troubleshooting the installation environment, it is critical to understand the overall flow of the installer-provisioned installation on bare metal. The following diagrams illustrate a troubleshooting flow with a s... | [
"curl -s -o /dev/null -I -w \"%{http_code}\\n\" http://webserver.example.com:8080/rhcos-44.81.202004250133-0-qemu.<architecture>.qcow2.gz?sha256=7d884b46ee54fe87bbc3893bf2aa99af3b2d31f2e19ab5529c60636fbd0f1ce7",
"sudo virsh list",
"Id Name State -------------------------------------------- 12 openshift-xf6fq-bo... | https://docs.redhat.com/en/documentation/openshift_container_platform_installation/4.15/html/deploying_installer-provisioned_clusters_on_bare_metal/ipi-install-troubleshooting |
Chapter 1. Provisioning APIs | Chapter 1. Provisioning APIs 1.1. BMCEventSubscription [metal3.io/v1alpha1] Description BMCEventSubscription is the Schema for the fast eventing API Type object 1.2. BareMetalHost [metal3.io/v1alpha1] Description BareMetalHost is the Schema for the baremetalhosts API Type object 1.3. FirmwareSchema [metal3.io/v1alpha1]... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html/provisioning_apis/provisioning-apis |
Edge computing | Edge computing OpenShift Container Platform 4.15 Configure and deploy OpenShift Container Platform clusters at the network edge Red Hat OpenShift Documentation Team | [
"export ISO_IMAGE_NAME=<iso_image_name> 1",
"export ROOTFS_IMAGE_NAME=<rootfs_image_name> 1",
"export OCP_VERSION=<ocp_version> 1",
"sudo wget https://mirror.openshift.com/pub/openshift-v4/dependencies/rhcos/4.15/USD{OCP_VERSION}/USD{ISO_IMAGE_NAME} -O /var/www/html/USD{ISO_IMAGE_NAME}",
"sudo wget https://... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html-single/edge_computing/index |
Edge computing | Edge computing OpenShift Container Platform 4.18 Configure and deploy OpenShift Container Platform clusters at the network edge Red Hat OpenShift Documentation Team | [
"export ISO_IMAGE_NAME=<iso_image_name> 1",
"export ROOTFS_IMAGE_NAME=<rootfs_image_name> 1",
"export OCP_VERSION=<ocp_version> 1",
"sudo wget https://mirror.openshift.com/pub/openshift-v4/dependencies/rhcos/4.18/USD{OCP_VERSION}/USD{ISO_IMAGE_NAME} -O /var/www/html/USD{ISO_IMAGE_NAME}",
"sudo wget https://... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.18/html-single/edge_computing/index |
4.9. Configuring atime Updates | 4.9. Configuring atime Updates Each file inode and directory inode has three time stamps associated with it: ctime - The last time the inode status was changed mtime - The last time the file (or directory) data was modified atime - The last time the file (or directory) data was accessed If atime updates are enabled as ... | [
"mount BlockDevice MountPoint -o relatime",
"mount /dev/vg01/lvol0 /mygfs2 -o relatime"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/global_file_system_2/s1-manage-atimeconf |
30.4. Administering VDO | 30.4. Administering VDO 30.4.1. Starting or Stopping VDO To start a given VDO volume, or all VDO volumes, and the associated UDS index(es), storage management utilities should invoke one of these commands: The VDO systemd unit is installed and enabled by default when the vdo package is installed. This unit automaticall... | [
"vdo start --name= my_vdo # vdo start --all",
"vdo stop --name= my_vdo # vdo stop --all",
"vdo changeWritePolicy --writePolicy= sync|async|auto --name= vdo_name",
"cat '/sys/block/sda/device/scsi_disk/7:0:0:0/cache_type' write back",
"cat '/sys/block/sdb/device/scsi_disk/1:2:0:0/cache_type' None",
"sd 7:0... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/storage_administration_guide/vdo-ig-administering-vdo |
Release notes | Release notes OpenShift Container Platform 4.14 Highlights of what is new and what has changed with this OpenShift Container Platform release Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.14/html/release_notes/index |
4.13. MySQL(R) | 4.13. MySQL(R) 4.13.1. DBD Driver The MySQL DBD driver has been dual-licensed and the related licensing issues have been resolved. The resulting apr-util-mysql package is now included in the Red Hat Enterprise Linux 6 software repositories. | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/migration_planning_guide/sect-migration_guide-networking-mysql |
Chapter 5. Installing a cluster on vSphere using the Agent-based Installer | Chapter 5. Installing a cluster on vSphere using the Agent-based Installer The Agent-based installation method provides the flexibility to boot your on-premises servers in any way that you choose. It combines the ease of use of the Assisted Installation service with the ability to run offline, including in air-gapped e... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/installing_on_vsphere/installing-vsphere-agent-based-installer |
Part III. Post-installation tasks | Part III. Post-installation tasks Managing subscriptions and securing a Red Hat Enterprise Linux (RHEL) system are essential steps for maintaining system compliance and functionality. Registering RHEL ensures access to software updates and services. Additionally, setting a system purpose aligns the system's usage with ... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/interactively_installing_rhel_over_the_network/post-installation-tasks |
Chapter 3. Administering the Environment | Chapter 3. Administering the Environment 3.1. Administering the Self-Hosted Engine 3.1.1. Maintaining the Self-hosted engine 3.1.1.1. Self-hosted engine maintenance modes explained The maintenance modes enable you to start, stop, and modify the Manager virtual machine without interference from the high-availability age... | [
"hosted-engine --set-maintenance --mode=local",
"hosted-engine --set-maintenance --mode=none",
"hosted-engine --set-maintenance --mode=global",
"hosted-engine --set-maintenance --mode=none",
"hosted-engine --set-shared-config key --type= type --help",
"hosted-engine --set-shared-config smtp-server smtp.ex... | https://docs.redhat.com/en/documentation/red_hat_virtualization/4.4/html/administration_guide/part-administering_the_environment |
2.5. OSA-Express5s Cards Support in qethqoat | 2.5. OSA-Express5s Cards Support in qethqoat Support for OSA-Express5s cards has been added to the qethqoat tool, part of the s390utils package. This enhancement extends the serviceability of network and card setups for OSA-Express5s cards, and is included as a Technology Preview with Red Hat Enterprise Linux 7.1 on IB... | null | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/7.1_release_notes/tp-sect-hardware_enablement-osa-express5s |
Chapter 15. Network flows format reference | Chapter 15. Network flows format reference These are the specifications for network flows format, used both internally and when exporting flows to Kafka. 15.1. Network Flows format reference This is the specification of the network flows format. That format is used when a Kafka exporter is configured, for Prometheus me... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.14/html/network_observability/json-flows-format-reference |
Chapter 11. Using Ruby on Rails | Chapter 11. Using Ruby on Rails Ruby on Rails is a web framework written in Ruby. This guide covers using Rails 4 on OpenShift Container Platform. Warning Go through the whole tutorial to have an overview of all the steps necessary to run your application on the OpenShift Container Platform. If you experience a problem... | [
"sudo yum install -y postgresql postgresql-server postgresql-devel",
"sudo postgresql-setup initdb",
"sudo systemctl start postgresql.service",
"sudo -u postgres createuser -s rails",
"gem install rails",
"Successfully installed rails-4.3.0 1 gem installed",
"rails new rails-app --database=postgresql",
... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.9/html/images/templates-using-ruby-on-rails |
Chapter 5. Upgrade OpenShift sandboxed containers | Chapter 5. Upgrade OpenShift sandboxed containers You can upgrade the components of OpenShift sandboxed containers by upgrading OpenShift sandboxed containers Operator and OpenShift sandboxed containers artifacts. 5.1. Upgrade OpenShift sandboxed containers Operator You can use Operator Lifecycle Manager (OLM) to manua... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.9/html/sandboxed_containers_support_for_openshift/upgrade-sandboxed-containers |
Chapter 8. Access resources | Chapter 8. Access resources Automation controller uses a primary key to access individual resource objects. You can access automation controller resources by using resource-specific, human-readable identifiers through the named URL feature. The following example shows the named URL path where you can access a resource ... | [
"/api/v2/hosts/host_name++inv_name++org_name/",
"\"NAMED_URL_FORMATS\": { \"organizations\": \"<name>\", \"teams\": \"<name>++<organization.name>\", \"credential_types\": \"<name>+<kind>\", \"credentials\": \"<name>++<credential_type.name>+<credential_type.kind>++<organization.name>\", \"notification_templates\":... | https://docs.redhat.com/en/documentation/red_hat_ansible_automation_platform/2.5/html/automation_execution_api_overview/controller-api-access-resources |
Making open source more inclusive | Making open source more inclusive Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upc... | null | https://docs.redhat.com/en/documentation/red_hat_data_grid/8.5/html/upgrading_data_grid/making-open-source-more-inclusive_datagrid |
Using the AMQ Core Protocol JMS Client | Using the AMQ Core Protocol JMS Client Red Hat AMQ 2020.Q4 For Use with AMQ Clients 2.8 | null | https://docs.redhat.com/en/documentation/red_hat_amq/2020.q4/html/using_the_amq_core_protocol_jms_client/index |
Chapter 3. Distribution of content in RHEL 9 | Chapter 3. Distribution of content in RHEL 9 3.1. Installation Red Hat Enterprise Linux 9 is installed using ISO images. Two types of ISO image are available for the AMD64, Intel 64-bit, 64-bit ARM, IBM Power Systems, and IBM Z architectures: Installation ISO: A full installation image that contains the BaseOS and AppS... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/9/html/9.4_release_notes/distribution |
25.3.2. Adding an LCS Device | 25.3.2. Adding an LCS Device The LAN channel station (LCS) device driver supports 1000Base-T Ethernet on the OSA-Express2 and OSA-Express 3 features. Based on the type of interface being added, the LCS driver assigns one base interface name: eth n for OSA-Express Fast Ethernet and Gigabit Ethernet n is 0 for the first ... | [
"modprobe lcs",
"cio_ignore -r read_device_bus_id , write_device_bus_id",
"cio_ignore -r 0.0.09a0,0.0.09a1",
"echo read_device_bus_id , write_device_bus_id > /sys/bus/ccwgroup/drivers/lcs/group",
"echo portno > /sys/bus/ccwgroup/drivers/lcs/device_bus_id/portno",
"echo 1 > /sys/bus/ccwgroup/drivers/lcs/re... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/installation_guide/ap-s390info-Adding_a_Network_Device-LCS_Device |
Configuring | Configuring Red Hat Advanced Cluster Security for Kubernetes 4.5 Configuring Red Hat Advanced Cluster Security for Kubernetes Red Hat OpenShift Documentation Team | [
"-----BEGIN CERTIFICATE----- MIICLDCCAdKgAwIBAgIBADAKBggqhkjOPQQDAjB9MQswCQYDVQQGEwJCRTEPMA0G l4wOuDwKQa+upc8GftXE2C//4mKANBC6It01gUaTIpo= -----END CERTIFICATE-----",
"-n <namespace> create secret tls central-default-tls-cert --cert <tls-cert.pem> --key <tls-key.pem>",
"central: # Configure a default TLS certif... | https://docs.redhat.com/en/documentation/red_hat_advanced_cluster_security_for_kubernetes/4.5/html-single/configuring/index |
32.2. Configuring SELinux User Map Order and Defaults | 32.2. Configuring SELinux User Map Order and Defaults An SELinux user map is the association between an SELinux user on a client and an IdM user. The available SELinux user map order is part of the IdM server configuration. The SELinux user map order is a list of the SELinux users, in an order from the most to the leas... | [
"SELinux_user:MLS[:MCS]",
"[user1]@server ~]USD ipa config-show SELinux user map order: guest_u:s0USDxguest_u:s0USDuser_u:s0USDstaff_u:s0-s0:c0.c1023USDunconfined_u:s0-s0:c0.c1023 Default SELinux user: unconfined_u:s0-s0:c0.c1023",
"[user1@server ~]USD ipa config-mod --ipaselinuxusermaporder=\"unconfined_u:s0-s... | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/linux_domain_identity_authentication_and_policy_guide/config-selinux |
Chapter 3. Identity [user.openshift.io/v1] | Chapter 3. Identity [user.openshift.io/v1] Description Identity records a successful authentication of a user with an identity provider. The information about the source of authentication is stored on the identity, and the identity is then associated with a single user object. Multiple identities can reference a single... | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/user_and_group_apis/identity-user-openshift-io-v1 |
Chapter 3. Additional resources | Chapter 3. Additional resources For more information about Red Hat build of Apache Camel for Quarkus, see the following documentation: Red Hat build of Apache Camel for Quarkus Extensions Getting Started with Red Hat build of Apache Camel for Quarkus Developing Applications with Red Hat build of Apache Camel for Quarku... | null | https://docs.redhat.com/en/documentation/red_hat_build_of_apache_camel/4.8/html/migrating_fuse_7_applications_to_red_hat_build_of_apache_camel_for_quarkus/additional_resources |
Chapter 3. Using Pipelines as Code with a Git repository hosting service provider | Chapter 3. Using Pipelines as Code with a Git repository hosting service provider After installing Pipelines as Code, cluster administrators can configure a Git repository hosting service provider. Currently, the following services are supported: GitHub App GitHub Webhook GitLab Bitbucket Server Bitbucket Cloud Note Gi... | [
"tkn pac bootstrap github-app",
"tkn pac bootstrap github-app --github-api-url https://github.com/enterprises/example-enterprise",
"echo https://USD(oc get route -n openshift-pipelines pipelines-as-code-controller -o jsonpath='{.spec.host}')",
"echo https://USD(oc get route -n openshift-pipelines pac_controll... | https://docs.redhat.com/en/documentation/red_hat_openshift_pipelines/1.15/html/pipelines_as_code/using-pipelines-as-code-repos |
4.2. Service Initialization | 4.2. Service Initialization 4.2.1. xinetd Xinetd is a daemon used to start network services on demand. The changes in xinetd are related to the allowed limit of open file descriptors: The listening mechanism has changed from select() to poll() . With this change, the limit of open file descriptors used by xinetd can be... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/migration_planning_guide/sect-migration_guide-networking-service_initialization |
Chapter 14. Post-installation security hardening | Chapter 14. Post-installation security hardening RHEL is designed with robust security features enabled by default. However, you can enhance its security further through additional hardening measures. For more information about: Installing security updates and displaying additional details about the updates to keep you... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/interactively_installing_rhel_from_installation_media/post-installation-security-hardening_rhel-installer |
Chapter 10. Creating a diagnostic log for support | Chapter 10. Creating a diagnostic log for support If you need help from the Red Hat support team, you can create and share diagnostic log files. These log files can help the support team to troubleshoot issues with insights-client . 10.1. Creating a diagnostic log You can create a diagnostic log to share with the suppo... | [
"insights-client --support",
"Collecting logs Insights version: insights-core-3.0.121-1 Registration check: status: True unreachable: False . . . . Copying Insights logs to archive Support information collected in /var/tmp/H_Y43a/insights-client-logs-20190927144011.tar.gz",
"cd /var/tmp/H_Y43a",
"tar -xzf ins... | https://docs.redhat.com/en/documentation/red_hat_insights/1-latest/html/client_configuration_guide_for_red_hat_insights_with_fedramp/assembly-client-diagnostic-log-support |
Making Open Source More Inclusive | Making Open Source More Inclusive Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upc... | null | https://docs.redhat.com/en/documentation/red_hat_directory_server/11/html/configuration_command_and_file_reference/making-open-source-more-inclusive |
2.6. Red Hat Certificate System Services | 2.6. Red Hat Certificate System Services Certificate System has a number of different features for administrators to use which makes it easier to maintain the individual subsystems and the PKI as a whole. 2.6.1. Notifications When a particular event occurs, such as when a certificate is issued or revoked, then a notifi... | null | https://docs.redhat.com/en/documentation/red_hat_certificate_system/10/html/planning_installation_and_deployment_guide/management-tools |
Chapter 2. Multipath Devices | Chapter 2. Multipath Devices Without DM-Multipath, each path from a server node to a storage controller is treated by the system as a separate device, even when the I/O path connects the same server node to the same storage controller. DM-Multipath provides a way of organizing the I/O paths logically, by creating a sin... | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/dm_multipath/mpath_devices |
7.4. Extract a Self-signed Certificate from the Keystore | 7.4. Extract a Self-signed Certificate from the Keystore Procedure 7.2. Extract a Self-signed Certificate from the Keystore Run the keytool -export -alias ALIAS -keystore server.keystore -rfc -file public.cert command: Enter the keystore password when prompted: Result This creates the public.cert file that contains a c... | [
"keytool -export -alias teiid -keystore server.keystore -rfc -file public.cert",
"Enter keystore password: <password>"
] | https://docs.redhat.com/en/documentation/red_hat_jboss_data_virtualization/6.4/html/security_guide/extract_a_self-signed_certificate_from_the_keystore |
Making open source more inclusive | Making open source more inclusive Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upc... | null | https://docs.redhat.com/en/documentation/red_hat_build_of_openjdk/21/html/release_notes_for_red_hat_build_of_openjdk_21.0.1/making-open-source-more-inclusive |
Making open source more inclusive | Making open source more inclusive Red Hat is committed to replacing problematic language in our code, documentation, and web properties. We are beginning with these four terms: master, slave, blacklist, and whitelist. Because of the enormity of this endeavor, these changes will be implemented gradually over several upc... | null | https://docs.redhat.com/en/documentation/red_hat_openstack_platform/17.1/html/configuring_high_availability_for_instances/making-open-source-more-inclusive |
Chapter 4. OpenShift Data Foundation installation overview | Chapter 4. OpenShift Data Foundation installation overview OpenShift Data Foundation consists of multiple components managed by multiple operators. 4.1. Installed Operators When you install OpenShift Data Foundation from the Operator Hub, the following four separate Deployments are created: odf-operator : Defines the o... | null | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.17/html/red_hat_openshift_data_foundation_architecture/openshift_data_foundation_installation_overview |
14.22.13. Updating an Existing Network Definition File | 14.22.13. Updating an Existing Network Definition File This command updates the given section of an existing network definition, taking effect immediately, without needing to destroy and re-start the network. This command is one of "add-first", "add-last", "add" (a synonym for add-last), "delete", or "modify". section ... | [
"virsh net-update network command section xml [--parent-index index] [[--live] [--config] | [--current]]"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/virtualization_administration_guide/sub-sect-virtual_networking_commands-updating_an_existing_network_definition_file |
Chapter 23. Managing JMS destinations | Chapter 23. Managing JMS destinations The JMX Navigator view lets you add or delete JMS destinations in a running instance of Red Hat Fuse. Important These changes are not persistent across broker restarts. 23.1. Adding a JMS destination Overview When testing a new scenario, it is convenient to add a new JMS destinatio... | null | https://docs.redhat.com/en/documentation/red_hat_fuse/7.13/html/tooling_user_guide/ridermanagedestination |
Chapter 1. Overview | Chapter 1. Overview AMQ OpenWire JMS is a Java Message Service (JMS) 1.1 client for use in messaging applications that send and receive OpenWire messages. AMQ OpenWire JMS is part of AMQ Clients, a suite of messaging libraries supporting multiple languages and platforms. For an overview of the clients, see AMQ Clients ... | [
"cd <project-dir>"
] | https://docs.redhat.com/en/documentation/red_hat_amq/2021.q1/html/using_the_amq_openwire_jms_client/overview |
3.5. Built-in Command-line Monitoring Tools | 3.5. Built-in Command-line Monitoring Tools In addition to graphical monitoring tools, Red Hat Enterprise Linux provides several tools that can be used to monitor a system from the command line. The advantage of these tools is that they can be used outside run level 5. This section discusses each tool briefly, and sugg... | [
"12:00:01 AM CPU %user %nice %system %iowait %steal %idle 12:10:01 AM all 0.10 0.00 0.15 2.96 0.00 96.79 12:20:01 AM all 0.09 0.00 0.13 3.16 0.00 96.61 12:30:01 AM all 0.09 0.00 0.14 2.11 0.00 97.66",
"~]USD vmstat -s",
"~]USD sar -B"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/performance_tuning_guide/s-analyzeperf-cli-tools |
3.4. Exclusive Activation of a Volume Group in a Cluster | 3.4. Exclusive Activation of a Volume Group in a Cluster The following procedure configures the LVM volume group in a way that will ensure that only the cluster is capable of activating the volume group, and that the volume group will not be activated outside of the cluster on startup. If the volume group is activated ... | [
"lvmconf --enable-halvm --services --startstopservices",
"vgs --noheadings -o vg_name my_vg rhel_home rhel_root",
"volume_list = [ \"rhel_root\", \"rhel_home\" ]",
"dracut -H -f /boot/initramfs-USD(uname -r).img USD(uname -r)",
"pcs cluster start",
"pcs cluster start --all"
] | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/high_availability_add-on_administration/s1-exclusiveactivenfs-HAAA |
3.12. Tools | 3.12. Tools matahari component The Matahari agent framework ( matahari-* ) packages are deprecated starting with the Red Hat Enterprise Linux 6.3 release. Focus for remote systems management has shifted towards the use of the CIM infrastructure. This infrastructure relies on an already existing standard which provides ... | [
"/bin/sh: line 4: reporter-bugzilla: command not found",
"abrt-action-analyze-backtrace && ( bug_id=USD(reporter-bugzilla -h `cat duphash`) && if test -n \"USDbug_id\"; then abrt-bodhi -r -b USDbug_id fi )",
"abrt-action-analyze-backtrace",
"Provides a mask of cpus which irqbalance should ignore and never ass... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/6.3_technical_notes/tools_issues |
Chapter 29. A collection of standard string functions | Chapter 29. A collection of standard string functions Functions to get the length, a substring, getting at individual characters, string seaching, escaping, tokenizing, and converting strings to longs. | null | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/systemtap_tapset_reference/string-dot-stp |
Chapter 21. Security | Chapter 21. Security Apache Karaf provides an advanced and flexible security system, powered by JAAS (Java Authentication and Authorization Service) in an OSGi compliant way. It provides a dynamic security system. The Apache Karaf security framework is used internally to control the access to: the OSGi services (descri... | [
"karaf@root()> jaas:realm-list Index | Realm Name | Login Module Class Name ----------------------------------------------------------------------------------- 1 | karaf | org.apache.karaf.jaas.modules.properties.PropertiesLoginModule 2 | karaf | org.apache.karaf.jaas.modules.publickey.PublickeyLoginModule",
"###... | https://docs.redhat.com/en/documentation/red_hat_fuse/7.13/html/deploying_into_apache_karaf/security |
Chapter 24. Discarding unused blocks | Chapter 24. Discarding unused blocks You can perform or schedule discard operations on block devices that support them. The block discard operation communicates to the underlying storage which file system blocks are no longer in use by the mounted file system. Block discard operations allow SSDs to optimize garbage col... | [
"fstrim mount-point",
"fstrim --all",
"fstrim /mnt/non_discard fstrim: /mnt/non_discard : the discard operation is not supported",
"mount -o discard device mount-point",
"--- - name: Manage local storage hosts: managed-node-01.example.com tasks: - name: Enable online block discard ansible.builtin.include_ro... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/8/html/managing_file_systems/discarding-unused-blocks_managing-file-systems |
Deploying multiple OpenShift Data Foundation storage clusters | Deploying multiple OpenShift Data Foundation storage clusters Red Hat OpenShift Data Foundation 4.17 Instructions on how to deploy an external OpenShift Data Foundation storage cluster when you already have an existing OpenShift Data Foundation internal storage cluster. Red Hat Storage Documentation Team Abstract Read ... | null | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.17/html/deploying_multiple_openshift_data_foundation_storage_clusters/index |
Part II. Using the sssd Container | Part II. Using the sssd Container This part covers how to deploy, configure, update and uninstall the SSSD container on Atomic Host. In addition, this documentation explains how to grant or restrict access to SSSD containers and how to create and use a centralized Kerberos credential cache. | null | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/using_containerized_identity_management_services/using-the-sssd-container |
6.11. Cluster Resources Cleanup | 6.11. Cluster Resources Cleanup If a resource has failed, a failure message appears when you display the cluster status. If you resolve that resource, you can clear that failure status with the pcs resource cleanup command. This command resets the resource status and failcount , telling the cluster to forget the operat... | [
"pcs resource cleanup resource_id",
"pcs resource refresh",
"pcs resource refresh --full"
] | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/7/html/high_availability_add-on_reference/s1-resource_cleanup-haar |
Chapter 7. QAT acceleration for encryption and compression | Chapter 7. QAT acceleration for encryption and compression Intel QAT (QuickAssist Technology) can provide extended accelerated encryption and compression services by offloading the actual encryption and compression requests to the hardware QuickAssist accelerators, which are more efficient in terms of cost and power th... | [
"grubby --update-kernel=ALL --args=\"intel_iommu=on\"",
"dnf install -y qatlib-service qatlib qatzip qatengine",
"usermod -aG qat root",
"cat /etc/sysconfig/qat ServicesEnabled=asym POLICY=8",
"cat /etc/sysconfig/qat ServicesEnabled=dc POLICY=8",
"cat /etc/sysconfig/qat ServicesEnabled=asym,dc POLICY=8",
... | https://docs.redhat.com/en/documentation/red_hat_ceph_storage/8/html/object_gateway_guide/qat-acceleration-for-encryption-and-compression |
Chapter 12. Troubleshooting | Chapter 12. Troubleshooting This section describes resources for troubleshooting the Migration Toolkit for Containers (MTC). For known issues, see the MTC release notes . 12.1. MTC workflow You can migrate Kubernetes resources, persistent volume data, and internal container images to OpenShift Container Platform 4.15 b... | [
"apiVersion: migration.openshift.io/v1alpha1 kind: DirectImageMigration metadata: labels: controller-tools.k8s.io: \"1.0\" name: <direct_image_migration> spec: srcMigClusterRef: name: <source_cluster> namespace: openshift-migration destMigClusterRef: name: <destination_cluster> namespace: openshift-migration namesp... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.15/html/migrating_from_version_3_to_4/troubleshooting-3-4 |
Chapter 2. Obtaining and modifying container images | Chapter 2. Obtaining and modifying container images A containerized overcloud requires access to a registry with the required container images. This chapter provides information on how to prepare the registry and your undercloud and overcloud configuration to use container images for Red Hat OpenStack Platform. 2.1. Pr... | [
"openstack tripleo container image prepare default --local-push-destination --output-env-file containers-prepare-parameter.yaml",
"parameter_defaults: ContainerImagePrepare: - (strategy one) - (strategy two) - (strategy three)",
"ContainerImagePrepare: - push_destination: true set: namespace: registry.redhat.io... | https://docs.redhat.com/en/documentation/red_hat_openstack_platform/16.0/html/transitioning_to_containerized_services/obtaining-container-images |
Chapter 15. Using Precision Time Protocol hardware | Chapter 15. Using Precision Time Protocol hardware 15.1. About Precision Time Protocol in OpenShift cluster nodes Precision Time Protocol (PTP) is used to synchronize clocks in a network. When used in conjunction with hardware support, PTP is capable of sub-microsecond accuracy, and is more accurate than Network Time P... | [
"apiVersion: v1 kind: Namespace metadata: name: openshift-ptp annotations: workload.openshift.io/allowed: management labels: name: openshift-ptp openshift.io/cluster-monitoring: \"true\"",
"oc create -f ptp-namespace.yaml",
"apiVersion: operators.coreos.com/v1 kind: OperatorGroup metadata: name: ptp-operators n... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/networking/using-precision-time-protocol-hardware |
Chapter 6. Installer-provisioned postinstallation configuration | Chapter 6. Installer-provisioned postinstallation configuration After successfully deploying an installer-provisioned cluster, consider the following postinstallation procedures. 6.1. Optional: Configuring NTP for disconnected clusters OpenShift Container Platform installs the chrony Network Time Protocol (NTP) service... | [
"sudo dnf -y install butane",
"variant: openshift version: 4.16.0 metadata: name: 99-master-chrony-conf-override labels: machineconfiguration.openshift.io/role: master storage: files: - path: /etc/chrony.conf mode: 0644 overwrite: true contents: inline: | # Use public servers from the pool.ntp.org project. # Plea... | https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/deploying_installer-provisioned_clusters_on_bare_metal/ipi-install-post-installation-configuration |
21.2.2. The vsftpd Server | 21.2.2. The vsftpd Server The Very Secure FTP Daemon ( vsftpd ) is designed from the ground up to be fast, stable, and, most importantly, secure. vsftpd is the only stand-alone FTP server distributed with Red Hat Enterprise Linux, due to its ability to handle large numbers of connections efficiently and securely. The s... | [
"~]# service vsftpd start",
"~]# service vsftpd stop",
"~]# service vsftpd restart",
"~]# service vsftpd condrestart",
"listen_address= N.N.N.N",
"~]# service vsftpd start",
"~]# vsftpd /etc/vsftpd/ configuration-file",
"ssl_enable=YES ssl_tlsv1=YES ssl_sslv2=NO ssl_sslv3=NO",
"~]# service vsftpd re... | https://docs.redhat.com/en/documentation/red_hat_enterprise_linux/6/html/deployment_guide/s2-ftp-servers-vsftpd |
Serverless | Serverless OpenShift Container Platform 4.16 Create and deploy serverless, event-driven applications using OpenShift Serverless Red Hat OpenShift Documentation Team | null | https://docs.redhat.com/en/documentation/openshift_container_platform/4.16/html/serverless/index |
6.15. Migrating virtual machines between Red Hat Virtualization environments | 6.15. Migrating virtual machines between Red Hat Virtualization environments You can migrate virtual machines from one Red Hat Virtualization environment to another using a data domain. You can minimize downtime by using live storage migration when migrating virtual machines. Alternatively, you can ensure that all virt... | null | https://docs.redhat.com/en/documentation/red_hat_virtualization/4.3/html/virtual_machine_management_guide/proc_migrating_vms_between_virt_environments_vm_guide_administrative_tasks |
27.2. How Do You Perform a Kickstart Installation? | 27.2. How Do You Perform a Kickstart Installation? Kickstart installations can be performed using a local DVD, a local hard drive, NFS, FTP, HTTP, or HTTPS. To use Kickstart, you must: Create a Kickstart file. Make the Kickstart file available on removable media, a hard drive or a network location. Create boot media, w... | [
"yum install pykickstart",
"ksvalidator /path/to/kickstart.ks",
"ksverdiff -f RHEL6 -t RHEL7",
"append initrd=initrd.img inst.ks=http://10.32.5.1/mnt/archive/RHEL-7/7.x/Server/x86_64/kickstarts/ks.cfg",
"kernel vmlinuz inst.ks=http://10.32.5.1/mnt/archive/RHEL-7/7.x/Server/x86_64/kickstarts/ks.cfg"
] | https://docs.redhat.com/en/documentation/Red_Hat_Enterprise_Linux/7/html/installation_guide/sect-kickstart-howto |
Chapter 3. Deploy standalone Multicloud Object Gateway | Chapter 3. Deploy standalone Multicloud Object Gateway Deploying only the Multicloud Object Gateway component with the OpenShift Data Foundation provides the flexibility in deployment and helps to reduce the resource consumption. Use this section to deploy only the standalone Multicloud Object Gateway component, which ... | [
"oc annotate namespace openshift-storage openshift.io/node-selector="
] | https://docs.redhat.com/en/documentation/red_hat_openshift_data_foundation/4.16/html/deploying_openshift_data_foundation_using_bare_metal_infrastructure/deploy-standalone-multicloud-object-gateway |
Chapter 12. Installing a cluster on GCP in a restricted network with user-provisioned infrastructure | Chapter 12. Installing a cluster on GCP in a restricted network with user-provisioned infrastructure In OpenShift Container Platform version 4.15, you can install a cluster on Google Cloud Platform (GCP) that uses infrastructure that you provide and an internal mirror of the installation release content. Important Whil... | [
"mkdir USDHOME/clusterconfig",
"openshift-install create manifests --dir USDHOME/clusterconfig",
"? SSH Public Key INFO Credentials loaded from the \"myprofile\" profile in file \"/home/myuser/.aws/credentials\" INFO Consuming Install Config from target directory INFO Manifests created in: USDHOME/clusterconfig... | https://docs.redhat.com/en/documentation/openshift_container_platform_installation/4.15/html/installing_on_gcp/installing-restricted-networks-gcp |
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