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-rw-r--r--src/nspawn/nspawn.c10
1 files changed, 7 insertions, 3 deletions
diff --git a/src/nspawn/nspawn.c b/src/nspawn/nspawn.c
index 05e1fc1ab7..b7c2fe9e55 100644
--- a/src/nspawn/nspawn.c
+++ b/src/nspawn/nspawn.c
@@ -269,7 +269,6 @@ static void help(void) {
" --overlay-ro=PATH[:PATH...]:PATH\n"
" Similar, but creates a read-only overlay mount\n"
" -E --setenv=NAME=VALUE Pass an environment variable to PID 1\n"
- " --share-system Share system namespaces with host\n"
" --register=BOOLEAN Register container as machine\n"
" --keep-unit Do not register a scope for the machine, reuse\n"
" the service unit nspawn is running in\n"
@@ -405,7 +404,7 @@ static int parse_argv(int argc, char *argv[]) {
{ "selinux-context", required_argument, NULL, 'Z' },
{ "selinux-apifs-context", required_argument, NULL, 'L' },
{ "quiet", no_argument, NULL, 'q' },
- { "share-system", no_argument, NULL, ARG_SHARE_SYSTEM },
+ { "share-system", no_argument, NULL, ARG_SHARE_SYSTEM }, /* not documented */
{ "register", required_argument, NULL, ARG_REGISTER },
{ "keep-unit", no_argument, NULL, ARG_KEEP_UNIT },
{ "network-interface", required_argument, NULL, ARG_NETWORK_INTERFACE },
@@ -814,6 +813,8 @@ static int parse_argv(int argc, char *argv[]) {
break;
case ARG_SHARE_SYSTEM:
+ /* We don't officially support this anymore, except for compat reasons. People should use the
+ * $SYSTEMD_NSPAWN_SHARE_SYSTEM environment variable instead. */
arg_share_system = true;
break;
@@ -1018,6 +1019,9 @@ static int parse_argv(int argc, char *argv[]) {
assert_not_reached("Unhandled option");
}
+ if (getenv_bool("SYSTEMD_NSPAWN_SHARE_SYSTEM") > 0)
+ arg_share_system = true;
+
if (arg_share_system)
arg_register = false;
@@ -1025,7 +1029,7 @@ static int parse_argv(int argc, char *argv[]) {
arg_userns_chown = true;
if (arg_start_mode != START_PID1 && arg_share_system) {
- log_error("--boot and --share-system may not be combined.");
+ log_error("--boot and SYSTEMD_NSPAWN_SHARE_SYSTEM=1 may not be combined.");
return -EINVAL;
}