Add LVM global_filter configuration to avoid scanning user devices #76
Conversation
Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
|
Caution Review failedThe pull request is closed. WalkthroughAdds a new Helm template snippet to create/overwrite /etc/lvm/lvm.conf with mode 0644, disabling LVM backups and setting a devices.global_filter. This is added alongside the existing file operation for /etc/cri/conf.d/20-customization.part. No public interfaces were changed. Changes
Sequence Diagram(s)sequenceDiagram
autonumber
actor U as User/Controller
participant H as Helm (cozystack chart)
participant N as Node Init
participant F as Filesystem
U->>H: helm install/upgrade
H->>N: Rendered templates with file operations
N->>F: Overwrite /etc/lvm/lvm.conf (0644)
Note right of F: backup=0, archive=0<br/>devices.global_filter=...
N->>F: (Existing) write /etc/cri/conf.d/20-customization.part
Estimated code review effort🎯 2 (Simple) | ⏱️ ~10 minutes Poem
📜 Recent review detailsConfiguration used: CodeRabbit UI Review profile: CHILL Plan: Pro ⛔ Files ignored due to path filters (1)
📒 Files selected for processing (1)
✨ Finishing Touches🧪 Generate unit tests
Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out. Comment |
![gemini-code-assist[bot]](https://avatars.githubusercontent.com/in/956858?s=60&v=4){kind=small}
There was a problem hiding this comment.
Summary of Changes
Hello @kvaps, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!
This pull request enhances the system's LVM configuration to prevent it from inadvertently scanning or interacting with specific device types that are typically managed by other components or users. By applying a global filter, it aims to improve system stability and resource management by avoiding potential conflicts or unnecessary operations on these devices.
Highlights
- LVM Configuration Update: Introduced a new configuration for LVM by overwriting
/etc/lvm/lvm.confto include specificglobal_filtersettings. - Device Filtering: The
global_filteris configured to exclude devices matchingdrbd,dm-, andzdpatterns (e.g., DRBD, device mapper, and ZFS devices) from LVM's scanning process. - Backup Settings: The LVM configuration also explicitly disables backup and archive features by setting
backup = 0andarchive = 0.
Using Gemini Code Assist
The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.
Invoking Gemini
You can request assistance from Gemini at any point in your pull request via creating an issue comment (i.e. comment on the pull request page) using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands.
| Feature | Command | Description |
|---|---|---|
| Code Review | /gemini review |
Performs a code review for the current pull request in its current state. |
| Pull Request Summary | /gemini summary |
Provides a summary of the current pull request in its current state. |
| Comment | @gemini-code-assist | Responds in comments when explicitly tagged, both in issue comments and review comments. |
| Help | /gemini help |
Displays a list of available commands. |
Customization
To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.
Limitations & Feedback
Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.
You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.
Footnotes
-
Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩
There was a problem hiding this comment.
Code Review
This pull request adds a global filter to the LVM configuration to prevent it from scanning certain device types like DRBD, Device Mapper, and ZFS volumes. This is a good practice to avoid issues with LVM misinterpreting these devices. The implementation is correct in both the Helm chart template and the generated Go code. I've made a minor suggestion in both modified files to fix an indentation inconsistency for better readability.
| archive = 0 | ||
| } | ||
| devices { | ||
| global_filter = [ "r|^/dev/drbd.*|", "r|^/dev/dm-.*|", "r|^/dev/zd.*|" ] |
There was a problem hiding this comment.
The indentation for global_filter is inconsistent with the backup section. For improved readability and consistency, it should be indented by 8 spaces instead of 9.
global_filter = [ "r|^/dev/drbd.*|", "r|^/dev/dm-.*|", "r|^/dev/zd.*|" ]
| archive = 0 | ||
| } | ||
| devices { | ||
| global_filter = [ "r|^/dev/drbd.*|", "r|^/dev/dm-.*|", "r|^/dev/zd.*|" ] |
There was a problem hiding this comment.
The indentation for global_filter within the string literal is inconsistent with the backup section in the YAML content. For improved readability and consistency, it should be indented by 8 spaces instead of 9.
| global_filter = [ "r|^/dev/drbd.*|", "r|^/dev/dm-.*|", "r|^/dev/zd.*|" ] | |
| global_filter = [ "r|^/dev/drbd.*|", "r|^/dev/dm-.*|", "r|^/dev/zd.*|" ] |
…ices Same change is already included in Talm: cozystack/talm#76 Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
…ices Same change is already included in Talm: cozystack/talm#76 Signed-off-by: Andrei Kvapil <kvapss@gmail.com>
Signed-off-by: Andrei Kvapil kvapss@gmail.com
Summary by CodeRabbit
Bug Fixes
Chores