1 files changed, 33 insertions, 0 deletions
diff --git a/etc/private/vm-login b/etc/private/vm-login
new file mode 100755
index 0000000..28e8864
--- /dev/null
+++ b/etc/private/vm-login
@@ -0,0 +1,33 @@
+#! /usr/bin/env bash
+
+# Get virtual machine console (using screen).
+#
+# Note: use Ctrl-a k to exit screen (or Ctrl-a a k if running inside screen).
+#
+usage="usage: $0 <console-socket>"
+
+trap "{ exit 1; }" ERR
+set -o errtrace # Trap in functions.
+
+function info () { echo "$*" 1>&2; }
+function error () { info "$*"; exit 1; }
+
+con="$1"
+
+if [ -z "$con" ]; then
+  error "missing console socket"
+fi
+
+pty="$(dirname "$con")/$(basename -s .sock "$con").pty"
+
+socat "UNIX-CONNECT:$con" "PTY,link=$pty" &
+pid="$!"
+
+# Hack around terminal permission issue when running under `su - <user>`.
+#
+script -q -c "screen $pty" /dev/null
+
+# Note: socat may have already terminated (e.g., VM was shut down).
+#
+kill "$pid" 2>/dev/null || true
+wait