remove backup user from dockerfile

Containerfile

@@ -11,14 +11,7 @@ RUN --mount=type=cache,target=/var/cache/libdnf5 <<EOF
 # dnf install -y kernel-devel-$(uname -r | awk -F'-' '{print $1}')
 dnf install -y https://zfsonlinux.org/fedora/zfs-release-3-1$(rpm --eval "%{dist}").noarch.rpm
 dnf install -y zfs btop borgbackup
+dnf clean all && rm -rf /run/dnf && rm -rf /tmp/*
 EOF
 
-RUN useradd -m -d /var/home/backup -G wheel backup
-ARG PASSWORD
-RUN echo "backup:${PASSWORD}" | chpasswd
-RUN mkdir /backups && chown backup:backup /backups
-
-COPY --chown=root:root --chmod=600 id_ed25519.pub /root/.ssh/authorized_keys
-COPY --chown=backup:backup --chmod=600 id_ed25519.pub /var/home/backup/.ssh/authorized_keys
-
 RUN bootc container lint

commands.sh

@@ -2,11 +2,9 @@ REPO="gitea.wefers.page/julian/backup-server"
 TAG="latest"
 
 build() {
-    read -srp "Desired password for user 'backup' in resulting container image: " password
     # ABSOLUTELY DO NOT USE --squash, as ostree NEEDS the layers
     sudo buildah build \
         -t ${REPO}:${TAG} \
-        --build-arg PASSWORD="${password}" \
         --pull \
         --layers \
         --format oci \

config.toml

@@ -1,3 +1,18 @@
+[customizations]
+hostname = "backupserver"
+
+[[customizations.user]]
+name = "backup"
+description = "Default user account"
+password = "$6$CHO2$3rN8eviE2t50lmVyBYihTgVRHcaecmeCk31L..."
+key = "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIGPAWtzq2/cuv+zPzdDSCe/5pc0HRCxmwFiI5Fu3sEok julian@local"
+home = "/srv/widget/"
+shell = "/usr/bin/bash"
+groups = ["widget", "users", "wheel"]
+uid = 1200
+gid = 1200
+expiredate = 12345
+
 [customizations.iso]
 volume_id = "JuliansBackupServer"
 application_id = "JuliansBackupServer"