context/unshare: mount proc and dev/pts

src/context/unshare.rs

@@ -172,9 +172,12 @@ impl UnshareDriver {
 
         cmd.arg("--map-user=65536")
             .arg("--map-group=65536")
+            .arg("--mount-proc")
             .arg("--pid")
             .arg("--ipc")
             .arg("--uts")
+            .arg("--user")
+            .arg("--cgroup")
             .arg("--map-auto")
             .arg("-r")
             .arg("--mount")
@@ -186,7 +189,11 @@ impl UnshareDriver {
             cmd.arg("-w").arg(dir);
         }
 
-        cmd.arg("--").arg(program).args(args);
+        cmd.arg("--").arg("bash").arg("-c").arg(format!(
+            "mount -t devpts devpts /dev/pts; mount --bind /dev/pts/ptmx /dev/ptmx; {} {}",
+            program,
+            args.join(" ")
+        ));
 
         cmd
     }

src/deb/ephemeral.rs

@@ -79,6 +79,7 @@ impl EphemeralContextGuard {
             .command("mmdebstrap")
             .arg("--variant=buildd")
             .arg("--mode=unshare")
+            .arg("--include=mount")
             .arg("--format=tar")
             .arg(series)
             .arg(tarball_path.to_string_lossy().to_string())
@@ -112,7 +113,7 @@ impl EphemeralContextGuard {
 
 impl Drop for EphemeralContextGuard {
     fn drop(&mut self) {
-        log::debug!("Cleaning up ephemeral context...");
+        log::debug!("Cleaning up ephemeral context ({:?})...", &self.chroot_path);
         // Reset to normal context
         if let Err(e) = context::manager().set_current(&self.previous_context) {
             log::error!("Failed to restore context {}: {}", self.previous_context, e);