Create Dockerfile.livecd

Dockerfile.livecd

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+# ----------------------------------------------------------------------------
+# Multi stage docker build for live cd tools in docker/container environment
+# AlmaLinux Init + Live CD Tools + PyKickStart 
+# ----------------------------------------------------------------------------
+FROM almalinux:8 as builder
+
+RUN dnf install -y epel-release elrepo-release && \
+    dnf upgrade -y && \
+    mkdir -p /mnt/system-root /mnt/system-root/build; \
+    dnf install --installroot /mnt/system-root  --releasever 8 --setopt=install_weak_deps=False --setopt=tsflags=nodocs -y dnf systemd \
+    livecd-tools pykickstart \
+    tar ; \
+    rm -rf /mnt/system-root/var/cache/* ; \
+    dnf clean all; \
+    cp /etc/yum.repos.d/* /mnt/system-root/etc/yum.repos.d/ ; \
+    rm -rf /var/cache/yum; 
+
+# Create Final image from scratch for ks2rootfs
+FROM scratch
+
+COPY --from=builder /mnt/system-root/ /
+
+CMD ["/bin/bash"]