mirror of
https://github.com/GNS3/gns3-server
synced 2024-12-26 16:58:28 +00:00
7c3a38d379
docker user to root for the init script to configure the network, then drops to the configured user (or root if one is not defined) for continuing booting the image.
96 lines
2.6 KiB
Bash
Executable File
96 lines
2.6 KiB
Bash
Executable File
#!/gns3/bin/busybox sh
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#
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# Copyright (C) 2016 GNS3 Technologies Inc.
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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# This script is injected into the container and launch before
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# the start command of the container
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#
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OLD_PATH="$PATH"
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PATH=/gns3/bin:/tmp/gns3/bin:/sbin
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# bootstrap busybox commands
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if [ ! -d /tmp/gns3/bin ]; then
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busybox mkdir -p /tmp/gns3/bin
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/gns3/bin/busybox --install -s /tmp/gns3/bin
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fi
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# Restore file permission and mount volumes
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echo "$GNS3_VOLUMES" | tr ":" "\n" | while read i
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do
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# ensure, that the mount directory exists
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mkdir -p "$i"
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# Copy original files if destination is empty (first start)
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if [ ! -f "/gns3volumes$i/.gns3_perms" ]; then
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cp -a "$i/." "/gns3volumes$i"
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touch "/gns3volumes$i/.gns3_perms"
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fi
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mount --bind "/gns3volumes$i" "$i"
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while IFS=: read PERMS OWNER GROUP FILE
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do
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[ -L "$FILE" ] || chmod "$PERMS" "$FILE"
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chown -h "${OWNER}:${GROUP}" "$FILE"
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done < "$i/.gns3_perms"
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done
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# /etc/hosts
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[ -s /etc/hosts ] || cat > /etc/hosts << __EOF__
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127.0.1.1 $HOSTNAME
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127.0.0.1 localhost
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::1 localhost ip6-localhost ip6-loopback
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fe00::0 ip6-localnet
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ff00::0 ip6-mcastprefix
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ff02::1 ip6-allnodes
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ff02::2 ip6-allrouters
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__EOF__
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# imitate docker's `ExtraHosts` behaviour
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sed -i '/GNS3_EXTRA_HOSTS_START/,/GNS3_EXTRA_HOSTS_END/d' /etc/hosts
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[ -n "$GNS3_EXTRA_HOSTS" ] && cat >> /etc/hosts << __EOF__
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# GNS3_EXTRA_HOSTS_START
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$GNS3_EXTRA_HOSTS
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# GNS3_EXTRA_HOSTS_END
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__EOF__
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# configure loopback interface
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ip link set dev lo up
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# Wait for all eth available
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while true
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do
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grep $GNS3_MAX_ETHERNET /proc/net/dev > /dev/null && break
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sleep 0.5
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done
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# activate eth interfaces
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sed -n 's/^ *\(eth[0-9]*\):.*/\1/p' < /proc/net/dev | while read dev; do
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ip link set dev $dev up
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done
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# configure network interfaces
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ifup -a -f
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# continue normal docker startup
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GNS3_CMD="PATH=$OLD_PATH exec"
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while test "$#" -gt 0 ; do
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GNS3_CMD="${GNS3_CMD} \"${1//\"/\\\"}\""
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shift
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done
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exec su ${GNS3_USER-root} -p -c "$GNS3_CMD"
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