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/etc/network/ |
| Current File : //etc/network/cloud-ifupdown-helper |
#!/bin/bash # Copyright 2019 Noah Meyerhans <[email protected]> # # This program is free software; you can redistribute it and/or modify # it under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # This program is distributed in the hope that it will be useful, # but WITHOUT ANY WARRANTY; without even the implied warranty of # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the # GNU General Public License for more details. # # You should have received a copy of the GNU General Public License along # with this program; if not, write to the Free Software Foundation, Inc., # 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. template="/etc/network/cloud-interfaces-template" cfgdir="/run/network/interfaces.d" mkdir -p "$cfgdir" log() { logger --tag "cloud-ifupdown-helper" --priority daemon.debug "$@" } do_setup() { local working="$cfgdir/.$INTERFACE" local final="$cfgdir/$INTERFACE" if ifup --no-act "$INTERFACE" > /dev/null 2>&1; then # interface is already known to ifupdown, no need to generate cfg log "Skipping configuration generation for $INTERFACE" return 0 fi sed "s/\\\$INTERFACE/$INTERFACE/g" "$template" > "$working" mv "$working" "$final" log "Generated configuration for $INTERFACE" # Raise the interface here, because we can't rely on the RUN # entries from /lib/udev/rules.d/80-ifupdown.rules running after # this script: systemctl --no-block start $(systemd-escape --template [email protected] $INTERFACE) } if [ -z "$INTERFACE" ]; then log 'Bad ifupdown udev helper invocation: $INTERFACE is not set' exit 1 fi do_setup exit 0 # Local variables: # mode: shell-script # tab-width: 4 # indent-tabs-mode: nil # end: