systemd: allow add users as a rootfs postprocess cmd

Adding all the users / groups to systemd is only available for readonly
file systems. This change allows users to add them to read / write file
systems as well by specifying:

ROOTFS_POSTPROCESS_COMMAND += "systemd_create_users"

Also, add "--shell /sbin/nologin" to each user's add params.

[ YOCTO #9497 ]

(From OE-Core rev: 98a4c642444a524f547f5d978a28814d20c12354)

(From OE-Core rev: 9e040927957dd06b5d1a7974a355e21a8e36ade4)

Signed-off-by: Stephano Cetola <stephano.cetola@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>
(cherry picked from commit 79be110c1fdfd0affe6a310b96e7107c4549d23c)
Signed-off-by: Kristian Amlie <kristian.amlie@mender.io>
Signed-off-by: Armin Kuster <akuster808@gmail.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

1 files changed, 20 insertions, 23 deletions

diff --git a/meta/classes/rootfs-postcommands.bbclass b/meta/classes/rootfs-postcommands.bbclass
index 95d28afa30..db8b551533 100644
--- a/meta/classes/rootfs-postcommands.bbclass
+++ b/meta/classes/rootfs-postcommands.bbclass
@@ -21,7 +21,7 @@ ROOTFS_POSTUNINSTALL_COMMAND =+ "write_image_manifest ; "
 POSTINST_LOGFILE ?= "${localstatedir}/log/postinstall.log"
 # Set default target for systemd images
 SYSTEMD_DEFAULT_TARGET ?= '${@bb.utils.contains("IMAGE_FEATURES", "x11-base", "graphical.target", "multi-user.target", d)}'
-ROOTFS_POSTPROCESS_COMMAND += '${@bb.utils.contains("DISTRO_FEATURES", "systemd", "set_systemd_default_target; ", "", d)}'
+ROOTFS_POSTPROCESS_COMMAND += '${@bb.utils.contains("DISTRO_FEATURES", "systemd", "set_systemd_default_target; systemd_create_users;", "", d)}'
 
 ROOTFS_POSTPROCESS_COMMAND += 'empty_var_volatile;'
 
@@ -30,7 +30,25 @@ ROOTFS_POSTPROCESS_COMMAND += 'empty_var_volatile;'
 SSH_DISABLE_DNS_LOOKUP ?= " ssh_disable_dns_lookup ; "
 ROOTFS_POSTPROCESS_COMMAND_append_qemuall = "${SSH_DISABLE_DNS_LOOKUP}"
 
-
+systemd_create_users () {
+        for conffile in ${IMAGE_ROOTFS}/usr/lib/sysusers.d/systemd.conf ${IMAGE_ROOTFS}/usr/lib/sysusers.d/systemd-remote.conf; do
+                [ -e $conffile ] || continue
+                grep -v "^#" $conffile | sed -e '/^$/d' | while read type name id comment; do
+                if [ "$type" = "u" ]; then
+                        useradd_params="--shell /sbin/nologin"
+                        [ "$id" != "-" ] && useradd_params="$useradd_params --uid $id"
+                        [ "$comment" != "-" ] && useradd_params="$useradd_params --comment $comment"
+                        useradd_params="$useradd_params --system $name"
+                        eval useradd --root ${IMAGE_ROOTFS} $useradd_params || true
+                elif [ "$type" = "g" ]; then
+                        groupadd_params=""
+                        [ "$id" != "-" ] && groupadd_params="$groupadd_params --gid $id"
+                        groupadd_params="$groupadd_params --system $name"
+                        eval groupadd --root ${IMAGE_ROOTFS} $groupadd_params || true
+                fi
+                done
+        done
+}
 
 #
 # A hook function to support read-only-rootfs IMAGE_FEATURES
@@ -73,27 +91,6 @@ read_only_rootfs_hook () {
                         ${IMAGE_ROOTFS}/etc/init.d/populate-volatile.sh
                 fi
         fi
-
-        if ${@bb.utils.contains("DISTRO_FEATURES", "systemd", "true", "false", d)}; then
-            # Update user database files so that services don't fail for a read-only systemd system
-            for conffile in ${IMAGE_ROOTFS}/usr/lib/sysusers.d/systemd.conf ${IMAGE_ROOTFS}/usr/lib/sysusers.d/systemd-remote.conf; do
-                [ -e $conffile ] || continue
-                grep -v "^#" $conffile | sed -e '/^$/d' | while read type name id comment; do
-                    if [ "$type" = "u" ]; then
-                        useradd_params=""
-                        [ "$id" != "-" ] && useradd_params="$useradd_params --uid $id"
-                        [ "$comment" != "-" ] && useradd_params="$useradd_params --comment $comment"
-                        useradd_params="$useradd_params --system $name"
-                        eval useradd --root ${IMAGE_ROOTFS} $useradd_params || true
-                    elif [ "$type" = "g" ]; then
-                        groupadd_params=""
-                        [ "$id" != "-" ] && groupadd_params="$groupadd_params --gid $id"
-                        groupadd_params="$groupadd_params --system $name"
-                        eval groupadd --root ${IMAGE_ROOTFS} $groupadd_params || true
-                    fi
-                done
-            done
-        fi
 }
 
 #