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[hostname-config] improve hostname-config process #3676

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Merged
merged 1 commit into from
Oct 29, 2019
Merged

[hostname-config] improve hostname-config process #3676

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10 changes: 8 additions & 2 deletions files/image_config/hostname/hostname-config.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -8,9 +8,15 @@ hostname -F /etc/hostname

# Remove the old hostname entry from hosts file.
# But, 'localhost' entry is used by multiple applications. Don't remove it altogether.
# Edit contents of /etc/hosts and put in /etc/hosts.new
if [ $CURRENT_HOSTNAME != "localhost" ] || [ $CURRENT_HOSTNAME == $HOSTNAME ] ; then
sed -i "/\s$CURRENT_HOSTNAME$/d" /etc/hosts
sed "/\s$CURRENT_HOSTNAME$/d" /etc/hosts > /etc/hosts.new
else
cp -f /etc/hosts /etc/hosts.new
fi

echo "127.0.0.1 $HOSTNAME" >> /etc/hosts
echo "127.0.0.1 $HOSTNAME" >> /etc/hosts.new

# Swap file: hosts.new and hosts
mv -f /etc/hosts /etc/hosts.old
mv -f /etc/hosts.new /etc/hosts