Updates rollback to SDN procedure to add live migration #81099
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| * Patches the `network.operator` CR to set the migration mode to `Live` for OpenShiftSDN and deploys the OpenShiftSDN network plugin in migration mode. | ||
| * Deploys OVN-Kubernetes with hybrid overlay enabled. | ||
| * Waits for both CNI plugins to be deployed and updates the conditions in the status of the `network.config` CR. | ||
| * Triggers the MCO to apply the new machine config to each machine config pool, which includes node cordoning, draining, and rebooting. | ||
| * Removes migration-related fields from the `network.operator` CR and performs cleanup actions, such as deleting OpenShift SDN resources and redeploying OVN-Kubernetes in normal mode with the necessary configurations. | ||
| * Waits for the OpenShiftSDN redeployment and updates the status conditions in the `network.config` CR to indicate migration completion. |
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Mark these up? Or switch to "OpenShift SDN" if a general reference?
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| * Patches the `network.operator` CR to set the migration mode to `Live` for OpenShiftSDN and deploys the OpenShiftSDN network plugin in migration mode. | |
| * Deploys OVN-Kubernetes with hybrid overlay enabled. | |
| * Waits for both CNI plugins to be deployed and updates the conditions in the status of the `network.config` CR. | |
| * Triggers the MCO to apply the new machine config to each machine config pool, which includes node cordoning, draining, and rebooting. | |
| * Removes migration-related fields from the `network.operator` CR and performs cleanup actions, such as deleting OpenShift SDN resources and redeploying OVN-Kubernetes in normal mode with the necessary configurations. | |
| * Waits for the OpenShiftSDN redeployment and updates the status conditions in the `network.config` CR to indicate migration completion. | |
| * Patches the `network.operator` CR to set the migration mode to `Live` for `OpenShiftSDN` and deploys the `OpenShiftSDN` network plugin in migration mode. | |
| * Deploys OVN-Kubernetes with hybrid overlay enabled. | |
| * Waits for both CNI plugins to be deployed and updates the conditions in the status of the `network.config` CR. | |
| * Triggers the MCO to apply the new machine config to each machine config pool, which includes node cordoning, draining, and rebooting. | |
| * Removes migration-related fields from the `network.operator` CR and performs cleanup actions, such as deleting OpenShift SDN resources and redeploying OVN-Kubernetes in normal mode with the necessary configurations. | |
| * Waits for the `OpenShiftSDN` redeployment and updates the status conditions in the `network.config` CR to indicate migration completion. |
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| Cluster:: As nodes reboot, the cluster assigns IP addresses to pods on the OpenShift-SDN network. | ||
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| Enable the MCO after all nodes in the cluster reboot. | ||
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| MCO:: Rolls out an update to the systemd configuration necessary for OpenShift SDN; the MCO updates a single machine per pool at a time by default, so the total time the migration takes increases with the size of the cluster. |
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I see "OpenShift-SDN" and "OpenShift SDN":
Suggested change
| Cluster:: As nodes reboot, the cluster assigns IP addresses to pods on the OpenShift-SDN network. | |
| | | |
| Enable the MCO after all nodes in the cluster reboot. | |
| | | |
| MCO:: Rolls out an update to the systemd configuration necessary for OpenShift SDN; the MCO updates a single machine per pool at a time by default, so the total time the migration takes increases with the size of the cluster. | |
| Cluster:: As nodes reboot, the cluster assigns IP addresses to pods on the OpenShift SDN network. | |
| | | |
| Enable the MCO after all nodes in the cluster reboot. | |
| | | |
| MCO:: Rolls out an update to the systemd configuration necessary for OpenShift SDN; the MCO updates a single machine per pool at a time by default, so the total time the migration takes increases with the size of the cluster. |
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This is a manual cherry-pick of #77067, which is CP'd from 0462085. The content of this PR will not exactly match the PR which it was CP'd from, though it should be close. Because of various changes to the docs since this content went live (which are difficult to track), I used this original PR as a base and then copied the docs from version 4.16. That being said, discrepancies between this PR and the one that it was cherry-picked from are expected (if you compare the two, I mean).
This is PR one of 2. The second is #81120
The content matches its "parent content" in version 4.16.
Jira: https://issues.redhat.com/browse/OSDOCS-11834
For 4.15 only.
Preview:
https://81099--ocpdocs-pr.netlify.app/openshift-enterprise/latest/networking/ovn_kubernetes_network_provider/rollback-to-openshift-sdn.html