nested lxd wip1

scripts/lxc-miaou-create

@@ -97,7 +97,7 @@ runcmd:
 final_message: "Container from datasource \$datasource is finally up, after \$UPTIME seconds"
 EOF
     )"
-    lxc init images:debian/$CONTAINER_RELEASE/cloud "$CONTAINER" --config user.user-data="$user_data" -q
+    lxc init local:debian/$CONTAINER_RELEASE/cloud "$CONTAINER" --config user.user-data="$user_data" -q
 
     # allow directory `SHARED` to be read-write mounted
     lxc config set "$CONTAINER" raw.idmap "both $(id -u) 0" -q
@@ -105,8 +105,11 @@ EOF
 
     lxc config device add "$CONTAINER" SHARED disk source="$HOME/LXD/SHARED/$CONTAINER" path=/mnt/SHARED -q
     lxc config device add "$CONTAINER" TOOLBOX disk source=/TOOLBOX path=/TOOLBOX -q
-    lxc config device add "$CONTAINER" DEBIAN_BASH disk source=$(realpath /opt/miaou-bash) path=/opt/miaou-bash -q
+    lxc config device add "$CONTAINER" MIAOU_BASH disk source=$(realpath /opt/miaou-bash) path=/opt/miaou-bash -q
+
+    # environment variables
     lxc config set "$CONTAINER" environment.PATH /usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/opt/miaou-bash/tools:/TOOLBOX -q
+    lxc config set "$CONTAINER" environment.container lxc -q
 
     if [[ "$OPTION_NESTING" == true ]]; then
         lxc config set "$CONTAINER" security.nesting true -q
@@ -123,8 +126,10 @@ EOF
     lxc file push "$MIAOU_BASEDIR/templates/bottom/bottom.toml" "$CONTAINER/root/.config/bottom/bottom.toml" -q
 
     # purge cloud-init after success
-    lxc exec "$CONTAINER" -- systemd-run -q -p After=cloud-final.service -p Type=oneshot --no-block bash -c '\
-        sleep 0.2 &&\
+    attempt=0
+    max_attempt=10
+    delay=0.2
+    while ! lxc exec "$CONTAINER" -- bash -c 'systemd-run -q -p After=cloud-final.service -p Type=oneshot --no-block bash -c "\
         cloud-init status --wait &&\
         cp /var/lib/cloud/data/status.json /root/cloud-status.json &&\
         systemctl stop cloud-{config,final,init-local,init}.service &&\
@@ -133,7 +138,15 @@ EOF
         apt-get purge -y cloud-init &&\
         rm -rf /var/lib/cloud && \
         userdel -rf debian \
-        '
+        " 2>/dev/null '; do
+        attempt=$((attempt++))
+        if [[ $attempt -gt $max_attempt ]]; then
+            echoerr "systemd unavailable after $(bc <<<"$max_attempt * $delay") seconds"
+            exit 1
+        else
+            sleep $delay
+        fi
+    done
 
     if [[ "$OPTION_SAMEUSER" == true ]]; then
         if ! lxc exec "$CONTAINER" -- grep "$miaou_user" /etc/passwd; then