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container: keep the io connection when pass fd to hybrid vsock

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We want the io connection keep connected when the containerd closed
the io pipe, thus it can be attached on the io stream.

Signed-off-by: Fupan Li <fupan.lfp@antgroup.com>
This commit is contained in:
Fupan Li 2023-11-02 17:03:17 +08:00 committed by Zixuan Tan
parent 4a762fcfdd
commit cfb262d02f
1 changed files with 3 additions and 1 deletions
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4
src/runtime-rs/crates/runtimes/virt_container/src/container_manager/io/passfd_io.rs
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@ -16,7 +16,9 @@ async fn passfd_connect(uds: &str, port: u32, fd: OwnedFd) -> Result<u32> {
let mut stream = UnixStream::connect(&uds).await.context("connect")?; let mut stream = UnixStream::connect(&uds).await.context("connect")?;
stream.write_all(b"passfd\n").await.context("write all")?; stream.write_all(b"passfd\n").await.context("write all")?;
let buf = format!("{}", port); // We want the io connection keep connected when the containerd closed the io pipe,
// thus it can be attached on the io stream.
let buf = format!("{} keep", port);
stream stream
.send_with_fd(buf.as_bytes(), &[fd.as_raw_fd()]) .send_with_fd(buf.as_bytes(), &[fd.as_raw_fd()])
.context("send port and fd")?; .context("send port and fd")?;