Initial commit to populate repo
Change-Id: Ic74d9808c0de92c46b14d3c15cca87b32148d760
diff --git a/resources/simpleovs b/resources/simpleovs
new file mode 100755
index 0000000..f43b8a1
--- /dev/null
+++ b/resources/simpleovs
@@ -0,0 +1,77 @@
+#!/bin/bash -x
+#
+# Copyright 2019-present Open Networking Foundation
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+set -o errexit
+set -o pipefail
+set -o nounset
+
+exec 3>&1
+exec &>>/var/log/simple-ovs-cni.log
+
+PATH="$CNI_PATH:$(dirname "${BASH_SOURCE[0]}"):$PATH"
+CNI_CONF=$(cat /dev/stdin)
+
+get_bridge() {
+ echo "br-$(echo $CNI_CONF | jq -r '.name')"
+}
+
+ipam() {
+ local plugin=$(echo $CNI_CONF | jq -r '.ipam.type')
+ local res=$(echo $"$CNI_CONF" | "$plugin" | jq -c '.')
+ echo $res
+}
+
+add_br_and_port() {
+ mkdir -p /var/run/netns/
+ ln -sfT $CNI_NETNS /var/run/netns/$CNI_CONTAINERID
+
+ local bridge=$(get_bridge)
+ local ip=$1
+
+ ovs-vsctl --may-exist add-br $bridge
+ ovs-vsctl add-port $bridge $CNI_IFNAME -- set Interface $CNI_IFNAME type=internal
+
+ ip link set $CNI_IFNAME netns $CNI_CONTAINERID
+ ip netns exec $CNI_CONTAINERID ip addr add $ip dev $CNI_IFNAME
+ ip netns exec $CNI_CONTAINERID ip link set $CNI_IFNAME up
+}
+
+delete_br_and_port() {
+ local bridge="br-$(echo $CNI_CONF | jq -r '.name')"
+ ovs-vsctl del-port $CNI_IFNAME
+ if [ -z "$(ovs-vsctl list-ports $bridge)" ]; then
+ ovs-vsctl del-br $bridge
+ fi
+}
+
+case $CNI_COMMAND in
+ADD)
+ res=$(ipam)
+ ip=$(echo $res | jq -r '.ip4.ip')
+ add_br_and_port $ip
+ echo '{"cniVersion":"0.2.0"}' | jq -c --arg ip $ip '.ip4.ip = $ip' >&3
+ ;;
+DEL)
+ set +o errexit
+ ipam
+ delete_br_and_port
+ set -o errexit
+ ;;
+*)
+ echo "CNI_COMMAND=[ADD|DEL] only supported"
+ exit 1
+ ;;
+esac