85e3a81f47
* Fix to improve hostname handling If config_db.json is missing hostname entry, hostname-config.sh ends up deleting existing entry too and hostname changes to default 'localhost' * default hostname to 'sonic` if missing in config file
28 lines
846 B
Bash
Executable File
28 lines
846 B
Bash
Executable File
#!/bin/bash -e
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CURRENT_HOSTNAME=`hostname`
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HOSTNAME=`sonic-cfggen -d -v DEVICE_METADATA[\'localhost\'][\'hostname\']`
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if [ -z "$HOSTNAME" ] ; then
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echo "Missing hostname in the config file, setting to default 'sonic'"
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HOSTNAME='sonic'
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fi
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echo $HOSTNAME > /etc/hostname
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hostname -F /etc/hostname
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# Remove the old hostname entry from hosts file.
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# But, 'localhost' entry is used by multiple applications. Don't remove it altogether.
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# Edit contents of /etc/hosts and put in /etc/hosts.new
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if [ $CURRENT_HOSTNAME != "localhost" ] || [ $CURRENT_HOSTNAME == $HOSTNAME ] ; then
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sed "/\s$CURRENT_HOSTNAME$/d" /etc/hosts > /etc/hosts.new
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else
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cp -f /etc/hosts /etc/hosts.new
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fi
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echo "127.0.0.1 $HOSTNAME" >> /etc/hosts.new
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# Swap file: hosts.new and hosts
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mv -f /etc/hosts /etc/hosts.old
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mv -f /etc/hosts.new /etc/hosts
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