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

set sysctl variables on cni server startup #1758

Merged
merged 1 commit into from
Aug 2, 2022
Merged

set sysctl variables on cni server startup #1758

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.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
29 changes: 25 additions & 4 deletions dist/images/start-cniserver.sh
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -4,17 +4,30 @@ set -euo pipefail
CNI_SOCK=/run/openvswitch/kube-ovn-daemon.sock
OVS_SOCK=/run/openvswitch/db.sock
ENABLE_SSL=${ENABLE_SSL:-false}
SYSCTL_NF_CONNTRACK_TCP_BE_LIBERAL=${SYSCTL_NF_CONNTRACK_TCP_BE_LIBERAL:-1}
SYSCTL_IPV4_NEIGH_DEFAULT_GC_THRESH=${SYSCTL_IPV4_NEIGH_DEFAULT_GC_THRESH:-"1024 2048 4096"}

# usage: set_sysctl key value
function set_sysctl {
echo "setting sysctl variable \"$1\" to \"$2\""
procfs_path="/proc/sys/$(echo "$1" | tr . /)"
if [ -f "$procfs_path" ]; then
sysctl -w "$1=$2"
else
echo "path \"$procfs_path\" does not exist, skip"
fi
}

function quit {
rm -rf CNI_CONF
exit 0
rm -rf $CNI_SOCK
exit 0
}
trap quit EXIT

if [[ -e "$CNI_SOCK" ]]
then
echo "previous socket exists, remove and continue"
rm ${CNI_SOCK}
echo "previous socket exists, remove and continue"
rm ${CNI_SOCK}
fi

while true
Expand All @@ -34,4 +47,12 @@ iptables -P FORWARD ACCEPT
iptables-nft -P FORWARD ACCEPT
set -e

gc_thresh1=$(echo "$SYSCTL_IPV4_NEIGH_DEFAULT_GC_THRESH" | awk '{print $1}')
gc_thresh2=$(echo "$SYSCTL_IPV4_NEIGH_DEFAULT_GC_THRESH" | awk '{print $2}')
gc_thresh3=$(echo "$SYSCTL_IPV4_NEIGH_DEFAULT_GC_THRESH" | awk '{print $3}')
set_sysctl net.ipv4.neigh.default.gc_thresh1 $gc_thresh1
set_sysctl net.ipv4.neigh.default.gc_thresh2 $gc_thresh2
set_sysctl net.ipv4.neigh.default.gc_thresh3 $gc_thresh3
set_sysctl net.netfilter.nf_conntrack_tcp_be_liberal $SYSCTL_NF_CONNTRACK_TCP_BE_LIBERAL

./kube-ovn-daemon --ovs-socket=${OVS_SOCK} --bind-socket=${CNI_SOCK} "$@"