Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Fix regex match for getting primary interface #1311

Merged
merged 1 commit into from
Dec 9, 2020
Merged

Fix regex match for getting primary interface #1311

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
27 changes: 24 additions & 3 deletions scripts/init.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -2,6 +2,26 @@

set -euxo pipefail

get_metadata()
{
TOKEN=$(curl -X PUT "http://169.254.169.254/latest/api/token" -H "X-aws-ec2-metadata-token-ttl-seconds: 60")
attempts=60
false
while [ "${?}" -gt 0 ]; do
if [ "${attempts}" -eq 0 ]; then
echo "Failed to get metdata"
exit 1
fi
meta=$(curl -H "X-aws-ec2-metadata-token: $TOKEN" http://169.254.169.254/latest/meta-data/${1})
if [ "${?}" -gt 0 ]; then
let attempts--
sleep 0.5
false
fi
done
echo "$meta"
}

PLUGIN_BINS="loopback portmap bandwidth aws-cni-support.sh"

for b in $PLUGIN_BINS; do
Expand All @@ -23,9 +43,10 @@ done

# Configure rp_filter
echo "Configure rp_filter loose... "
TOKEN=$(curl -X PUT "http://169.254.169.254/latest/api/token" -H "X-aws-ec2-metadata-token-ttl-seconds: 60")
HOST_IP=$(curl -H "X-aws-ec2-metadata-token: $TOKEN" http://169.254.169.254/latest/meta-data/local-ipv4)
PRIMARY_IF=$(ip -4 -o a | grep "$HOST_IP/" | awk '{print $2}')

HOST_IP=$(get_metadata 'local-ipv4')
PRIMARY_MAC=$(get_metadata 'mac')
PRIMARY_IF=$(ip -o link show | grep -F "link/ether $PRIMARY_MAC" | awk -F'[ :]+' '{print $2}')
sysctl -w "net.ipv4.conf.$PRIMARY_IF.rp_filter=2"
cat "/proc/sys/net/ipv4/conf/$PRIMARY_IF/rp_filter"

Expand Down