cilium
1[{
2"labels": [{"key": "name", "value": "l4-rules"}],
3"endpointSelector": {"matchLabels":{"role":"backend"}},
4"ingress": [{
5"fromEndpoints": [
6{"matchLabels":{"role":"frontend"}}
7]
8}, {
9"toPorts": [
10{"ports":[ {"port": "80", "protocol": "TCP"}]}
11]
12}]
13}]
14