calico node pod가 Running이지만 0/1, 실행 되지 않은 상태였다.
kubectl logs calico-node-4tcfk -n kube-system
Warning Unhealthy 17s (x2 over 18s) kubelet Readiness probe failed: calico/node is not ready: BIRD is not ready: Error querying BIRD: unable to connect to BIRDv4 socket: dial unix /var/run/calico/bird.ctl: connect: connection refused
Warning Unhealthy 7s kubelet Readiness probe failed: 2024-10-04 14:42:49.855 [INFO][242] confd/health.go 180: Number of node(s) with BGP peering established = 0
calico/node is not ready: BIRD is not ready: BGP not established with 10.0.0.2,10.0.0.3,10.0.0.4
calico-node가 인터페이스를 통해 통신이 불가능 하기 때문에 발생한다.
보안 그룹에 Port 179를 추가해야 한다.
BGP를 통해 통신하는데, BGP Port가 막혀있었던 것.
