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| author |   Marco Platania <platania@research.att.com> | 2017-05-09 12:20:28 -0400 |
|---|---|---|
| committer | Marco Platania <platania@research.att.com> | 2017-05-09 12:20:28 -0400 |
| commit | 8a83578b5f007b4be348a969a74ad6c185c5b9e0 (patch) | |
| tree | 4ff9f4296511963b7dd38a791922329c1f0537db /boot/asdc_install.sh | |
| parent | 6271e83bfe0a8225f63aa520fa03968a7453ddd0 (diff) | |
[UCA-10] Fix issue with MTU size in dockers
Change-Id: I19db615d3f5364d6b0894aabf5de60d192183595
Signed-off-by: Marco Platania <platania@research.att.com>
Diffstat (limited to 'boot/asdc_install.sh')
| -rw-r--r-- | boot/asdc_install.sh | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/boot/asdc_install.sh b/boot/asdc_install.sh index 2f07b232..fa6e7994 100644 --- a/boot/asdc_install.sh +++ b/boot/asdc_install.sh @@ -80,6 +80,20 @@ mkdir -p /data mount /dev/$DISK"1" /data echo "/dev/"$DISK"1 /data ext4 errors=remount-ro,noatime,barrier=0 0 1" >> /etc/fstab +# Set the MTU size of docker containers to the minimum MTU size supported by vNICs. OpenStack deployments may need to know the external DNS IP +MTU=$(/sbin/ifconfig | grep MTU | sed 's/.*MTU://' | sed 's/ .*//' | sort -n | head -1) + +if [ -s /opt/config/external_dns.txt ] +then + echo "DOCKER_OPTS=\"--dns $(cat /opt/config/external_dns.txt) --mtu=$MTU\"" >> /etc/default/docker +else + echo "DOCKER_OPTS=\"--mtu=$MTU\"" >> /etc/default/docker +fi + +cp /lib/systemd/system/docker.service /etc/systemd/system +sed -i "/ExecStart/s/$/ --mtu=$MTU/g" /etc/systemd/system/docker.service +service docker restart + # DNS IP address configuration echo "nameserver "$DNS_IP_ADDR >> /etc/resolvconf/resolv.conf.d/head resolvconf -u |