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guest: set hostname from launch config

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This commit is contained in:
Alex Zenla
2024-03-31 03:18:56 +00:00
parent 6cd8cc12db
commit 377b837db9
3 changed files with 20 additions and 1 deletions
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14
crates/guest/src/init.rs
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@ -5,7 +5,7 @@ use ipnetwork::IpNetwork;
use krata::ethtool::EthtoolHandle;
use krata::idm::client::IdmClient;
use krata::launchcfg::{LaunchInfo, LaunchNetwork};
use libc::{setsid, TIOCSCTTY};
use libc::{sethostname, setsid, TIOCSCTTY};
use log::{trace, warn};
use nix::ioctl_write_int_bad;
use nix::unistd::{dup2, execve, fork, ForkResult, Pid};
@ -91,6 +91,18 @@ impl GuestInit {
self.nuke_initrd().await?;
self.bind_new_root().await?;
if let Some(hostname) = launch.hostname.clone() {
let result = unsafe {
sethostname(
hostname.as_bytes().as_ptr() as *mut libc::c_char,
hostname.len(),
)
};
if result != 0 {
warn!("failed to set hostname: {}", result);
}
}
if let Some(network) = &launch.network {
trace!("initializing network");
if let Err(error) = self.network_setup(network).await {