sles base image dockerfile (#106)

README.md

@@ -103,7 +103,7 @@ do so (now or later) by using -c with the switch command. Example:
 ```shell
 cp .arg.template .arg
 ```
-6. To build RHEL core, RHEL FIPS or Ubuntu fips base images switch to respective directories and build the base image.
+6. To build RHEL core, RHEL FIPS or Ubuntu fips, sles base images switch to respective directories and build the base image.
 The base image built can be passed as argument to build the installer and provider images.
 Follow the instructions in the respective sub-folders (rhel-fips, ubuntu-fips) to create base images.
 For ubuntu-fips, this image can be used as base image - `gcr.io/spectro-images-public/ubuntu-focal-fips:v4.0_20230817`

slem/Dockerfile

@@ -0,0 +1,44 @@
+ARG BASE_IMAGE=registry.suse.com/suse/sle-micro-rancher/5.4:latest
+FROM $BASE_IMAGE
+ADD repos/SUSE* /etc/zypp/repos.d/
+ADD services/* /etc/zypp/services.d/
+RUN zypper --gpg-auto-import-keys ref
+RUN zypper in --force-resolution -y \
+    cryptsetup \
+    nfs-client \
+    kernel-firmware-all \
+    systemd-network \
+    polkit \
+    rng-tools \
+    nano \
+    && zypper cc
+ADD repos/opensuse* /etc/zypp/repos.d/
+RUN zypper --gpg-auto-import-keys ref
+RUN zypper in --force-resolution -y --no-allow-vendor-change \
+    htop \
+    fail2ban \
+    lldpd \
+    nethogs \
+    && zypper cc
+# NOTE: removed dhcp-client
+RUN mkdir -p /run/lock
+RUN mkdir -p /usr/libexec
+RUN touch /usr/libexec/.keep
+COPY --from=quay.io/kairos/framework:v2.4.3_opensuse-leap / /
+# Activate Kairos services
+RUN systemctl enable cos-setup-reconcile.timer && \
+          systemctl enable cos-setup-fs.service && \
+          systemctl enable cos-setup-boot.service && \
+          systemctl enable cos-setup-network.service
+# Remove /etc/dracut.conf.d/90-kairos-network-legacy.conf to allow dracut to build initrd without dhcp-client
+RUN rm -f /etc/dracut.conf.d/90-kairos-network-legacy.conf
+## Generate initrd
+RUN kernel=$(ls /boot/vmlinuz-* | head -n1) && \
+            ln -sf "${kernel#/boot/}" /boot/vmlinuz
+RUN kernel=$(ls /lib/modules | head -n1) && \
+            dracut -v -N -f "/boot/initrd-${kernel}" "${kernel}" && \
+            ln -sf "initrd-${kernel}" /boot/initrd && depmod -a "${kernel}"
+RUN kernel=$(ls /lib/modules | head -n1) && dracut -f "/boot/initrd-${kernel}" "${kernel}" && ln -sf "initrd-${kernel}" /boot/initrd
+RUN rm -rf /boot/initramfs-*
+RUN rm -rf /etc/zypp/repos.d/*
+RUN rm -rf /etc/zypp/services.d/*