Allow pausing after upgrade but before uncordon (#8530)
* Allow pausing after upgrade but before uncordon * Expand docs for upgrade pausing vars Signed-off-by: Mac Chaffee <me@macchaffee.com>
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@ -58,10 +58,17 @@ Client Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.7", GitCom
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Server Version: version.Info{Major:"1", Minor:"19", GitVersion:"v1.19.7", GitCommit:"1dd5338295409edcfff11505e7bb246f0d325d15", GitTreeState:"clean", BuildDate:"2021-01-13T13:15:20Z", GoVersion:"go1.15.5", Compiler:"gc", Platform:"linux/amd64"}
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```
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If you want to manually control the upgrade procedure, you can use the variables `upgrade_node_confirm` or `upgrade_node_pause_seconds`:
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### Pausing the upgrade
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`upgrade_node_confirm: true` - waiting to confirmation to upgrade next node
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`upgrade_node_pause_seconds: 60` - pause 60 seconds before upgrade next node
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If you want to manually control the upgrade procedure, you can set some variables to pause the upgrade playbook. Pausing *before* upgrading each upgrade may be useful for inspecting pods running on that node, or performing manual actions on the node:
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* `upgrade_node_confirm: true` - This will pause the playbook execution prior to upgrading each node. The play will resume when manually approved by typing "yes" at the terminal.
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* `upgrade_node_pause_seconds: 60` - This will pause the playbook execution for 60 seconds prior to upgrading each node. The play will resume automatically after 60 seconds.
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Pausing *after* upgrading each node may be useful for rebooting the node to apply kernel updates, or testing the still-cordoned node:
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* `upgrade_node_post_upgrade_confirm: true` - This will pause the playbook execution after upgrading each node, but before the node is uncordoned. The play will resume when manually approved by typing "yes" at the terminal.
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* `upgrade_node_post_upgrade_pause_seconds: 60` - This will pause the playbook execution for 60 seconds after upgrading each node, but before the node is uncordoned. The play will resume automatically after 60 seconds.
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## Node-based upgrade
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@ -1,3 +1,5 @@
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---
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# how long to wait for cilium after upgrade before uncordoning
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upgrade_post_cilium_wait_timeout: 120s
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upgrade_node_post_upgrade_confirm: false
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upgrade_node_post_upgrade_pause_seconds: 0
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@ -11,6 +11,20 @@
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--timeout={{ upgrade_post_cilium_wait_timeout }}
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delegate_to: "{{ groups['kube_control_plane'][0] }}"
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- name: Confirm node uncordon
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pause:
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echo: yes
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prompt: "Ready to uncordon node?"
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when:
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- upgrade_node_post_upgrade_confirm
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- name: Wait before uncordoning node
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pause:
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seconds: "{{ upgrade_node_post_upgrade_pause_seconds }}"
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when:
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- not upgrade_node_post_upgrade_confirm
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- upgrade_node_post_upgrade_pause_seconds != 0
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- name: Uncordon node
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command: "{{ kubectl }} uncordon {{ kube_override_hostname|default(inventory_hostname) }}"
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delegate_to: "{{ groups['kube_control_plane'][0] }}"
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