added source file for podman

Dockerfile

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+FROM bci/bci-init:latest
+
+LABEL Description="Warewulf Base Container"
+LABEL maintainer="Christian Goll <cgoll@suse.com>"
+
+
+RUN zypper -n install \
+  cpio \
+  gzip \
+  pigz \
+  rsync \
+  openssh-clients \
+  less \
+  dhcp-server \
+  tftp \
+  go1.18 \
+  git \
+  && \
+  zypper -n install -t pattern devel_basis && \
+  zypper clean -a && \
+  systemctl enable dhcpd && \
+  systemctl enable tftp.socket 
+
+# now build the warewulf
+COPY . /warewulf-src
+RUN cd /warewulf-src &&\
+  make clean &&\
+  make lint &&\ 
+  make
+
+# Our dhcpd will listen on ANY interface, limits will be handled by container runtime
+RUN export DHCPDCONF=/etc/sysconfig/dhcpd; test -e $DHCPDCONF && \ 
+	sed -i 's/^DHCPD_INTERFACE=""/DHCPD_INTERFACE="ANY"/' $DHCPDCONF && \
+	sed -i 's/^DHCPD_RUN_CHROOTED="yes"/DHCPD_RUN_CHROOTED="no"/' $DHCPDCONF && \
+  WW4CONF=/etc/warewulf/warewulf.conf; test -e $WW4CONF && \
+  sed -i 's/^ipaddr:.*/ipaddr: EMPTY/' $WW4CONF && \
+  sed -i 's/^netmask:.*/netmask: EMPTY/' $WW4CONF && \
+  sed -i 's/^network:.*/network: EMPTY/' $WW4CONF && \
+  sed -i 's/^  range start:.*/  range start: EMPTY/' $WW4CONF && \
+  sed -i 's/^  range end:.*/  range end: EMPTY/' $WW4CONF 
+
+
+# We need the configs on the host as these files are quite important
+RUN mkdir -p /container/warewulf &&  cp -rv /etc/warewulf/* /container/warewulf 
+COPY warewulf.service \
+ warewulf-container-manage.sh \
+ wwctl \
+ label-install \
+ label-uninstall \
+ label-purge \
+ /container
+
+# Add a service which will create a porper config on the startup
+COPY ww4-config.service \
+  /etc/systemd/system/
+
+RUN systemctl enable ww4-config
+ 
+
+RUN chmod +x \
+  /container/wwctl \
+  /container/warewulf-container-manage.sh \
+  /container/label-*
+
+# need systemd for tftp and dhcpd
+#ENTRYPOINT [ "/container/label-run" ]
+CMD  [ "/usr/sbin/init" ]
+
+#EXPOSE 67/udp 68/udp 69/udp 9873
+
+LABEL INSTALL="/usr/bin/docker run --env IMAGE=IMAGE --rm --privileged -v /:/host IMAGE /bin/bash /container/label-install"
+LABEL UNINSTALL="/usr/bin/docker run --rm --privileged -v /:/host IMAGE /bin/bash /container/label-uninstall"
+LABEL PURGE="/usr/bin/docker run -ti --rm --privileged -v /:/host IMAGE /bin/bash /container/label-purge"
+LABEL RUN="/usr/bin/docker run -d --replace --name \${NAME} --privileged --net=host -v /:/host -v /etc/warewulf:/etc/warewulf -v /var/lib/warewulf/:/var/lib/warewulf/ -e NAME=\${NAME} -e IMAGE=\${IMAGE} \${IMAGE}"
+

container-scripts/label-install

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+#!/bin/sh -eu
+
+# This is the install script for warewulf when run in a privileged
+# container.
+
+cd /
+PATH="/usr/bin:/usr/sbin"
+CONTAINER=warewulf
+BINSCRIPT=${CONTAINER}-container-manage.sh
+WWCTL=wwctl
+OVERLAYDIR=/var/lib/warewulf/overlays
+CHROOTDIR=/var/lib/warewulf/chroots
+CONTAINERDIR=/var/lib/warewulf/container
+WAREWULFCONF=/etc/warewulf
+BASHCOMPLETION=/usr/share/bash-completion/completions/wwctl
+
+echo "LABEL INSTALL"
+# ensure all scripts will be present on the host 
+copy_to_usr_local_bin() {
+SCRIPT=$1
+BASEDIR=`dirname $SCRIPT`
+mkdir -p $BASEDIR
+if [ ! -e /host/usr/local/bin/${SCRIPT} ]; then
+        echo "copy /container/${SCRIPT} in /host/usr/local/bin/"
+        rsync -u /container/${SCRIPT} /host/usr/local/bin/${SCRIPT}
+else
+        echo "/host/usr/local/bin/${SCRIPT} already exist, will not update it"
+fi
+}
+
+copy_to_etc() {
+CONF=$1
+BASEDIR=`dirname $CONF`
+mkdir -p $BASEDIR
+if [ ! -e /host/etc/${CONF} ]; then
+	echo "copy /container/${CONF} in /host/etc/"
+	rsync -u /container/${CONF} /host/etc/${CONF}
+else
+	echo "/host/etc/${CONF} already exist, will not update it"
+fi
+}
+sync_dir() {
+  DIR=$1
+  test -e /host/${DIR} || mkdir -pv /host/${DIR}
+  test -e /host/${DIR} && (rsync -au ${DIR} `dirname /host/${DIR}`; echo "updating $DIR") 
+}
+
+# For podman, cp a systemd unit for starting on boot
+if [ ! -e /host/etc/systemd/system/${CONTAINER}.service ]; then
+	mkdir -p /host/etc/systemd/system/
+	rsync -u /container/${CONTAINER}.service /host/etc/systemd/system/${CONTAINER}.service
+else
+	echo "/host/etc/systemd/system/${CONTAINER}.service already exist"
+fi
+
+# create the dirs
+mkdir -p /host/etc/warewulf
+mkdir -p /host/var/lib/warewulf
+
+copy_to_usr_local_bin ${WWCTL}
+copy_to_usr_local_bin ${BINSCRIPT}
+
+# now sync hosts and overlays
+sync_dir $OVERLAYDIR
+sync_dir $CHROOTDIR
+sync_dir $WAREWULFCONF
+
+# bash completion
+if [ ! -e /host/etc/bash_completion.d/wwctl ] ; then 
+  mkdir -p /host/etc/bash_completion.d
+  cp $BASHCOMPLETION /host/etc/bash_completion.d/
+fi
+
+# containerdir
+mkdir -p /host/$CONTAINERDIR

container-scripts/label-purge

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+#!/bin/bash
+OVERLAYDIR=/var/lib/warewulf/overlays
+CHROOTDIR=/var/lib/warewulf/chroots
+CONTAINERDIR=/var/lib/warewulf/container
+WAREWULFCONF=/etc/warewulf
+BASEDIR=/var/lib/warewulf
+cat >&2 << EOF
+WARNING:
+Purging all warewulf configurations, containers aka node images and overlays
+Wating for 10s, press any key to abort
+EOF
+
+count=0
+while true ; do
+    if read -t 0; then # Input ready
+        read -n 1 char
+        echo "Aborting purge"
+        exit 0
+    else # No input
+        echo -n '.'
+        sleep 1
+        count=$(( $count + 1))
+        if [ $count -eq 10 ] ; then
+          echo
+          break
+        fi
+    fi
+done
+echo "PURGING"
+/container/label-uninstall
+rm -rv /host/$WAREWULFCONF /host/$OVERLAYDIR /host/$CHROOTDIR /host/$CONTAINERDIR
+rmdir /host/$BASEDIR
+

container-scripts/label-uninstall

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+#!/bin/sh -eu
+
+# This is the uninstall script for grafana when run in a privileged
+# container.
+
+CONTAINER=warewulf
+cd /
+PATH="/usr/bin:/usr/sbin"
+
+if [ ! -d /host/etc ] || [ ! -d /host/usr/local/bin ]; then
+    echo "${CONTAINER}-uninstall: host file system is not mounted at /host"
+    exit 1
+fi
+
+# removing installed files
+echo "LABEL UNINSTALL: Removing all files"
+rm -vf /host/usr/local/bin/wwctl
+rm -vf /host/usr/local/bin/warewulf-container-manage.sh
+rm -vf /host/etc/systemd/system/${CONTAINER}.service
+rm -vf /host/usr/share/bash-completion/completions/wwctl