/etc/resolv.conf grows indefinitely

This file grows indefinitely : upon each DHCP lease renew, the "nameserver ..dns..." line is added at the end of the file. Make a "grep" in the file to make sure that the same line does not already exist. Signed-off-by: Rachid Koucha <rachid.koucha@gmail.com>

/etc/resolv.conf grows indefinitely
567f8915 · Rachid Koucha · GitHub · 8f2cce18 · 567f8915
Unverified Commit 567f8915 authored Jan 27, 2019 by Rachid Koucha Committed by GitHub Jan 27, 2019
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lxc-busybox.in templates/lxc-busybox.in +4 -1

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--- a/templates/lxc-busybox.in
+++ b/templates/lxc-busybox.in
@@ -164,7 +164,10 @@ case "\$1" in

    [ -n "\$domain" ] && echo search \$domain > /etc/resolv.conf
    for i in \$dns ; do
-      echo nameserver \$i >> /etc/resolv.conf
+      grep "nameserver \$i" /etc/resolv.conf > /dev/null 2>&1
+      if [ \$? -ne 0 ]; then
+        echo nameserver \$i >> /etc/resolv.conf
+      fi
    done
    ;;
 esac