From 481712d9ee88395042f0640f272c1f87142bc0a8 Mon Sep 17 00:00:00 2001 From: Dave Reisner Date: Wed, 9 Nov 2016 11:14:03 -0500 Subject: [PATCH] Revert "nspawn: try to bind mount resolved's resolv.conf snippet into the container" This reverts commit 3539724c26a1b2b00c4eb3c004b635a4b8647de6. --- src/nspawn/nspawn.c | 27 ++++++++------------------- 1 file changed, 8 insertions(+), 19 deletions(-) diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c index c8b18bc..93df7c6 100644 --- a/src/nspawn/nspawn.c +++ b/src/nspawn/nspawn.c @@ -1309,35 +1309,24 @@ static int setup_resolv_conf(const char *dest) { /* Fix resolv.conf, if possible */ where = prefix_roota(dest, "/etc/resolv.conf"); - if (access("/usr/lib/systemd/resolv.conf", F_OK) >= 0) { - /* resolved is enabled on the host. In this, case bind mount its static resolv.conf file into the - * container, so that the container can use the host's resolver. Given that network namespacing is - * disabled it's only natural of the container also uses the host's resolver. It also has the big - * advantage that the container will be able to follow the host's DNS server configuration changes - * transparently. */ - - r = mount_verbose(LOG_WARNING, "/usr/lib/systemd/resolv.conf", where, NULL, MS_BIND, NULL); - if (r >= 0) - return mount_verbose(LOG_ERR, NULL, where, NULL, - MS_BIND|MS_REMOUNT|MS_RDONLY|MS_NOSUID|MS_NODEV, NULL); - } - - /* If that didn't work, let's copy the file */ r = copy_file("/etc/resolv.conf", where, O_TRUNC|O_NOFOLLOW, 0644, 0); if (r < 0) { - /* If the file already exists as symlink, let's suppress the warning, under the assumption that - * resolved or something similar runs inside and the symlink points there. + /* If the file already exists as symlink, let's + * suppress the warning, under the assumption that + * resolved or something similar runs inside and the + * symlink points there. * - * If the disk image is read-only, there's also no point in complaining. + * If the disk image is read-only, there's also no + * point in complaining. */ log_full_errno(IN_SET(r, -ELOOP, -EROFS) ? LOG_DEBUG : LOG_WARNING, r, - "Failed to copy /etc/resolv.conf to %s, ignoring: %m", where); + "Failed to copy /etc/resolv.conf to %s: %m", where); return 0; } r = userns_lchown(where, 0, 0); if (r < 0) - log_warning_errno(r, "Failed to chown /etc/resolv.conf, ignoring: %m"); + log_warning_errno(r, "Failed to chown /etc/resolv.conf: %m"); return 0; } -- 2.10.2