Update search pattern for resolv.conf

Add strict case for pattern searching on resolv.conf file. It make sure that `nameserver` and `search` keyword are the start of the string when looking for name servers and search domains on resolv.conf. Signed-off-by: Obed N Munoz <[email protected]>
govm-project · Dec 19, 2018 · e5883b5 · e5883b5
1 parent 650c00c
commit e5883b5
Showing 1 changed file with 2 additions and 2 deletions.
diff --git a/startvm b/startvm
@@ -392,8 +392,8 @@ if [[ "$ENABLE_DHCP" == 1 ]]; then
     iptables -A POSTROUTING -t mangle -p udp --dport bootpc -j CHECKSUM --checksum-fill
 
     # Build DNS options from container /etc/resolv.conf
-    nameservers=($(grep nameserver /etc/resolv.conf | sed 's/nameserver //'))
-    searchdomains=$(grep search /etc/resolv.conf | sed 's/search //' | sed 's/ /,/g')
+    nameservers=($(grep ^nameserver /etc/resolv.conf | sed 's/nameserver //'))
+    searchdomains=$(grep ^search /etc/resolv.conf | sed 's/search //' | sed 's/ /,/g')
     domainname=$(echo $searchdomains | awk -F"," '{print $1}')
 
     for nameserver in "${nameservers[@]}"; do