Create /run/reboot-required by default #1378
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Code Review
This pull request introduces a straightforward and effective change to create the /run/reboot-required file after a new deployment is staged. This aligns with standard practices for signaling a required reboot and facilitates integration with tools like kured.
The implementation in lib/src/deploy.rs is clear, concise, and uses appropriate error handling with anyhow and context. The use of cap_std for file operations is suitable, and atomic_write combined with a try_exists check provides a robust way to create the signal file idempotently.
After a thorough review, I found no issues of medium, high, or critical severity. The code is correct for its intended purpose, handles potential error conditions appropriately, and is maintainable.
cgwalters
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cgwalters
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Thanks! One nit, and can you also add an integration test in say test-image-pushpull-upgrade.nu around like 68?
lib/src/deploy.rs
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| if !run_dir.try_exists("reboot-required")? { | ||
| run_dir.atomic_write("reboot-required", b"").context("Creating /run/reboot-required")?; | ||
| } |
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I think I'd say we should drop the conditional and always do the write - there's no harm to doing it, and updating the timestamp on the file also acts a signal that something changed again.
| let rr_meta = ls /run/reboot-required | ||
| assert equal $rr_meta.name "/run/reboot-required" |
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I think this is failing because ls returns a table. It should work if you do ls /run/reboot-required | first instead.
When staging a new deployment, create /run/reboot-required to signal that a reboot is needed. This file is monitored by kured (Kubernetes Reboot Daemon) and other tools to detect when a system needs to be rebooted. This makes it easier to integrate bootc with kured and similar tools without requiring manual configuration or bridging. Signed-off-by: Colin Walters <[email protected]>
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Yeah confusingly nushell has a dedicated "size" type that's not an integer, I fixed the test |
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When staging a new deployment, create /run/reboot-required to signal that a reboot is needed. This file is monitored by kured (Kubernetes Reboot Daemon) and other tools to detect when a system needs to be rebooted.
This makes it easier to integrate bootc with kured and similar tools without requiring manual configuration or bridging.
Fixes: #1353