X-Git-Url: https://osm.etsi.org/gitweb/?a=blobdiff_plain;f=jenkins%2FVCA%2Fstart_build;h=6cc5e301691af2eaee4b9566c9d1de5750a09de9;hb=4ffe5fe87638d92398252d6f23ab93ac0d1ec6fd;hp=45b0e94c38b953716c06ff2f523b7d2ed8ccc976;hpb=828aaf8ed201421d4d3d3fcf74f6764624c365e4;p=osm%2Fdevops.git

diff --git a/jenkins/VCA/start_build b/jenkins/VCA/start_build
index 45b0e94c..6cc5e301 100755
--- a/jenkins/VCA/start_build
+++ b/jenkins/VCA/start_build
@@ -56,6 +56,20 @@ EOF
 systemctl enable lxd-bridge
 systemctl start lxd-bridge
 
+DEFAULT_INTERFACE=$(route -n | awk '$1~/^0.0.0.0/ {print $8}')
+DEFAULT_MTU=$( ip addr show $DEFAULT_INTERFACE | perl -ne 'if (/mtu\s(\d+)/) {print $1;}')
+
+INFO "Setting lxdbr0 MTU to $DEFAULT_MTU"
+
+# This sets the MTU of lxdbr0 on the host machine without the need to recycle
+# the interface or reboot the machine.
+ifconfig lxdbr0 mtu $DEFAULT_MTU
+
+# Setting the MTU in the default profile will be applied to every lxc container.
+# Existing containers will need to be restarted for the new MTU to take effect.
+# This will also persist the MTU change for the host's lxdbr0
+lxc profile device set default eth0 mtu $DEFAULT_MTU
+
 INFO "Pre-caching Ubuntu:16.04 image (this may take several minutes)..."
 
 # Setup a daily cron to update the cached image