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Added pid_namespace() method to Realm

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This commit is contained in:
Bruce Leidl 2021-10-04 06:22:33 -04:00
parent 1418462e2c
commit 9760dfc501
1 changed files with 5 additions and 0 deletions
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5
libcitadel/src/realm/realm.rs
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@ -389,6 +389,11 @@ impl Realm {
self.leader_pid().map(|pid| PathBuf::from(format!("/proc/{}/root", pid)))
}
pub fn pid_namespace(&self) -> Option<String> {
let pid = self.leader_pid()?;
let path = symlink::read(format!("/proc/{}/ns/pid", pid))?;
path.to_str().map(|s| s.to_owned())
}
/// Query for 'leader pid' of realm nspawn instance with machinectl.
/// The leader pid is the 'pid 1' of the realm container as seen from