dockerd-rootless.sh: use exec
Killing the shell script process does not kill the forked process.
This commit switches to `exec` so that the executed process can be
easily killed.
@@ -75,7 +75,7 @@ if [ -z $_DOCKERD_ROOTLESS_CHILD ]; then
# namespace from being unexpectedly unmounted when `/etc/resolv.conf` is recreated on the host
# (by either systemd-networkd or NetworkManager)
# * /run: copy-up is required so that we can create /run/docker (hardcoded for plugins) in our namespace
- $rootlesskit \
+ exec $rootlesskit \
--net=$net --mtu=$mtu \
--disable-host-loopback --port-driver=builtin \
--copy-up=/etc --copy-up=/run \
@@ -86,5 +86,5 @@ else
# remove the symlinks for the existing files in the parent namespace if any,
# so that we can create our own files in our mount namespace.
rm -f /run/docker /run/xtables.lock
- dockerd $@
+ exec dockerd $@
fi
