CRI-O container runtime: Although RHCOS contains features for running the OCI- and libcontainer-formatted containers that Docker requires, it incorporates the CRI-O container engine instead of the Docker container engine.This controlled immutability allows OpenShift Container Platform to store the latest state of RHCOS systems in the cluster so it is always able to create additional machines and perform updates based on the latest RHCOS configurations. When you set up your RHCOS machines, you can modify only a few system settings. Management is performed remotely from the OpenShift Container Platform cluster.
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For example, RHCOS software is in RPM packages, and each RHCOS system starts up with a RHEL kernel and a set of services that are managed by the systemd init system. The same quality, security, and control measures that support RHEL also support RHCOS. Based on RHEL: The underlying operating system consists primarily of RHEL components.Types of webhook admission plugins"Ĭollapse section "7.4. Changing Ignition configs after installationĮxpand section "7.4. Red Hat Enterprise Linux CoreOS (RHCOS)"Ħ.2. Red Hat Enterprise Linux CoreOS (RHCOS)"Ĭollapse section "6. Red Hat Enterprise Linux CoreOS (RHCOS)Įxpand section "6. Creating a Kubernetes manifest for OpenShift Container Platform"ĥ.3.1. Creating a Kubernetes manifest for OpenShift Container Platform"Ĭollapse section "5.3. Creating a Kubernetes manifest for OpenShift Container PlatformĮxpand section "5.3. Building a simple container"Ĭollapse section "5.2. About developing containerized applicationsĮxpand section "5.2. Understanding OpenShift Container Platform development"ĥ.1. Understanding OpenShift Container Platform development"Ĭollapse section "5. Understanding OpenShift Container Platform developmentĮxpand section "5. Operators in OpenShift Container Platform"ĥ. Operators in OpenShift Container Platform"Ĭollapse section "4.3. Operators in OpenShift Container PlatformĮxpand section "4.3. Control plane and node host compatibilityĤ.3. Machine roles in OpenShift Container Platform"Ĥ.2.1. Machine roles in OpenShift Container Platform"Ĭollapse section "4.2. Machine roles in OpenShift Container PlatformĮxpand section "4.2. Node configuration management with machine config poolsĤ.2. Control plane architecture"Ĭollapse section "4. Support policy for unmanaged OperatorsĮxpand section "4. Supported platforms for OpenShift Container Platform clustersģ.3. OpenShift Container Platform installation overview"ģ.1.1. OpenShift Container Platform installation overview"Ĭollapse section "3.1. OpenShift Container Platform installation overviewĮxpand section "3.1. Installation and update"Ĭollapse section "3. Internet access for OpenShift Container PlatformĮxpand section "3. OpenShift Container Platform lifecycleĢ.1.4.
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Simplified installation and update processĢ.1.3.4. OpenShift Container Platform overview"Ģ.1.3.2.
OpenShift Container Platform overview"Ĭollapse section "2.1.3. OpenShift Container Platform overviewĮxpand section "2.1.3. The benefits of containerized applications"Ģ.1.3. The benefits of containerized applications"Ĭollapse section "2.1.2. The benefits of containerized applicationsĮxpand section "2.1.2. Introduction to OpenShift Container Platform"Ģ.1.2. Introduction to OpenShift Container Platform"Ĭollapse section "2.1. Introduction to OpenShift Container PlatformĮxpand section "2.1.
OpenShift Container Platform architecture"Ģ.1. OpenShift Container Platform architecture"Ĭollapse section "2. OpenShift Container Platform architectureĮxpand section "2. About Red Hat Enterprise Linux CoreOS (RHCOS) and IgnitionĢ. About containerized applications for developersġ.5. Glossary of common terms for OpenShift Container Platform architectureġ.4. Architecture overview"Ĭollapse section "1.
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