Implementig install_network and manage_dns

diff --git a/bin/postinst b/bin/postinst
index daff7ac34d3e7eea9a94287dbf89799f6068f7da..a59561fdaf000e38dadbe7f9e6fef112ec741dfb 100644 (file)
--- a/bin/postinst
+++ b/bin/postinst
@@ -18,6 +18,9 @@ echo
 echo "Some information:"
 echo "  \$hostname:             $hostname"
 echo "  \$system_name:          $system_name"
+echo "  \$gateway:              $gateway"
+echo "  \$mac_address_eth0:     $mac_address_eth0"
+echo "  \$ip_address_eth0:      $ip_address_eth0"
 echo "  \$IP_ADDRESS_ETH0:      $IP_ADDRESS_ETH0"
 echo "  \$SIMPLE_HOSTNAME:      $SIMPLE_HOSTNAME"
 echo "  \$DOMAIN:               $DOMAIN"
@@ -124,6 +127,105 @@ disable_ipv6() {
     echo "net.ipv6.conf.lo.disable_ipv6 = 1" | tee -a "${sysctl_file}"
 }
 
+#-----------------------------------------------------------
+mac_exists() {
+
+    [[ -z "$1" ]] && return 1
+    local mac_address="$1"
+
+    ip -o link | grep -i "${mac_address}" 2>/dev/null >/dev/null
+    return $?
+
+}
+
+#-----------------------------------------------------------
+get_ifname() {
+
+    [[ -z "$1" ]] && return 1
+    local mac_address="$1"
+
+    ip -o link | grep -i "${mac_address}" | sed -e 's/^[0-9]*: //' -e 's/:.*//'
+
+}
+
+#-----------------------------------------------------------
+install_network() {
+
+    echo
+    log "Generating network configuration ..."
+
+    local temp_dir=$( mktemp -d 'tmp.XXXXXXXXXX.cobbler' )
+    local tmp_nw_cfg="${temp_dir}/network"
+    local tmp_nw_script_dir="${temp_dir}/network-scripts"
+    local old_dir="/etc/sysconfig/network/network-scripts/.old"
+    local ifcfg_file=
+
+    mkdir -pv "${tmp_nw_script_dir}"
+    mkdir -pv "${old_dir}"
+
+    echo "Generating /etc/sysconfig/network ..."
+    #cp -pv /etc/sysconfig/network-scripts/ifcfg-lo "${tmp_nw_script_dir}"
+    grep -v 'GATEWAY|HOSTNAME' /etc/sysconfig/network > "${tmp_nw_cfg}"
+    echo "GATEWAY=${gateway}"   >> "${tmp_nw_cfg}"
+    echo "HOSTNAME=${hostname}" >> "${tmp_nw_cfg}"
+    mv -v /etc/sysconfig/network "/etc/sysconfig/network.orig.$( date -r /etc/sysconfig/network +'%Y-%m-%d_%H:%M:%S' )"
+    mv -v "${tmp_nw_cfg}" /etc/sysconfig/network
+
+    # Also set the hostname now, some applications require it
+    /bin/hostname "${hostname}"
+
+    local dev_file="${tmp_nw_script_dir}/ifcfg-eth0"
+    echo "Generating '${dev_file}' ..."
+
+    cat <<-EOF >"${dev_file}"
+       Name="System eth0"
+       DEVICE=eth0
+       ONBOOT=yes
+       HWADDR=${mac_address_eth0}
+       TYPE=Ethernet
+       BOOTPROTO=none
+       IPADDR=${ip_address_eth0}
+       NETMASK=255.255.254.0
+       DEFROUTE=yes
+       IPV4_FAILURE_FATAL=yes
+       IPV6INIT=no
+       DNS1=217.66.52.10
+       DNS2=93.188.109.13
+       DNS3=212.91.225.75
+       DOMAIN="pixelpark.com pixelpark.net"
+
+       EOF
+
+    for ifcfg_file in /etc/sysconfig/network-scripts/ifcfg-* ; do
+        local bname=$(basename "${ifcfg_file}" )
+        if [[ "${bname}" == "ifcfg-lo" ]] ; then
+            continue
+        fi
+        mv -v "${ifcfg_file}" "${old_dir}"
+    done
+    mv -v "${dev_file}" "/etc/sysconfig/network/network-scripts"
+
+    rm -vf "${temp_dir}"
+
+}
+
+#-----------------------------------------------------------
+manage_dns() {
+
+    log "Generating /etc/resolv.conf ..."
+    if [[ -f /etc/resolv.conf ]] ; then
+        mv -v /etc/resolv.conf "/etc/resolv.conf.orig.$( date -r /etc/resolv.conf +'%Y-%m-%d_%H:%M:%S' )"
+    fi
+    cat <<-EOF >"/etc/resolv.conf"
+       search pixelpark.net pixelpark.com
+       nameserver 217.66.52.10
+       nameserver 93.188.109.13
+       nameserver 212.91.225.75
+
+       EOF
+
+}
+
 #-----------------------------------------------------------
 main() {
 
@@ -132,6 +234,8 @@ main() {
     create_etc_hosts
     set_hostname
     disable_ipv6
+    install_network
+    manage_dns
 
 }