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OSDOCS-11188: adds note about greenboot.conf customization persistence MicroShift

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“Shauna Diaz”
2024-07-10 07:45:18 -04:00
parent 3f00bc68c9
commit ee4672ff5e
1 changed files with 8 additions and 0 deletions
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8
modules/microshift-greenboot-dir-structure.adoc
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@@ -39,3 +39,11 @@ Returning a nonzero exit code from any script means that script has failed. Gree
* `/etc/greenboot/green.d` contains scripts that run after Greenboot has declared the start successful.
* `/etc/greenboot/red.d` contains scripts that run after Greenboot has declared the startup as failed, including the `40_microshift_pre_rollback.sh` prerollback script. This script is executed right before a system rollback. The script performs {microshift-short} pod and OVN-Kubernetes cleanup to avoid potential conflicts after the system is rolled back to a previous version.
[IMPORTANT]
====
If you customize the values of any environment variable in the `/etc/greenboot/greenboot.conf` file, these changes can be lost when the greenboot RPM package is updated or downgraded.
* To retain customizations when building system images with {microshift-short}, add the `greenboot.conf` file to a blueprint.
* To retain customizations when using an RPM installation, apply changes to the `greenboot.conf` file after you install {microshift-short} and greenboot RPMs.
====