Make default v1.21.x, add tmux

Author: mudler

Dockerfile

@@ -2,8 +2,8 @@ ARG LUET_VERSION=0.16.7
 FROM quay.io/luet/base:$LUET_VERSION AS luet
 
 FROM opensuse/leap:15.3
-ARG K3S_VERSION=v1.22.2+k3s1
-ARG C3OS_VERSION=-c3OS1
+ARG K3S_VERSION=v1.21.4+k3s1
+ARG C3OS_VERSION=-c3OS2
 ARG ARCH=amd64
 ENV ARCH=${ARCH}
 RUN zypper in -y \
@@ -58,6 +58,7 @@ RUN zypper in -y \
     systemd-sysvinit \
     tar \
     timezone \
+    tmux \
     vim \
     which
 
@@ -67,13 +68,7 @@ COPY conf/luet.yaml /etc/luet/luet.yaml
 # Copy luet from the official images
 COPY --from=luet /usr/bin/luet /usr/bin/luet
 RUN luet install -y \
-       toolchain/yip \
-       toolchain/luet \
-       utils/installer \
-       system/cos-setup \
-       system/immutable-rootfs \
-       system/grub2-config \
-       system/base-dracut-modules \
+       meta/cos-core \
        utils/k9s \
        utils/nerdctl