calico无法ping通使用calico网络创建的其他PODs

Question

我设置了在2个不同的工作节点上运行的有状态pod，但我无法ping通这些pod。以下是池文件：

apiVersion: projectcalico.org/v3
kind: IPPool
metadata:
  name: rack.ippool-1
spec:
  cidr: 192.168.16.0/24 
  blockSize: 24  
  ipipMode: Never
  natOutgoing: true
  disabled: false
  nodeSelector: all()

第1个pod上的IP配置

ip addr show
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 3e:a6:cb:15:cf:1a brd ff:ff:ff:ff:ff:ff
    inet 192.168.16.41/32 brd 192.168.16.41 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::3ca6:cbff:fe15:cf1a/64 scope link 
       valid_lft forever preferred_lft forever

另一个节点上的IP会议

1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    inet 127.0.0.1/8 scope host lo
       valid_lft forever preferred_lft forever
    inet6 ::1/128 scope host 
       valid_lft forever preferred_lft forever
2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1450 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 1a:3c:c1:1a:fa:03 brd ff:ff:ff:ff:ff:ff
    inet 192.168.16.42/32 brd 192.168.16.42 scope global eth0
       valid_lft forever preferred_lft forever
    inet6 fe80::183c:c1ff:fe1a:fa03/64 scope link 
       valid_lft forever preferred_lft forever

Ping状态

ping 192.168.16.41
PING 192.168.16.41 (192.168.16.41) 56(84) bytes of data.

它不起作用。

我尝试了ipipMode: Always和CrossSubnet，但都不起作用。我不确定我错过了什么。此外，当我给出块大小为24的时候，我也不确定为什么IP在/32 CIDR中。它们不在/24 CIDR的范围内吗？

[root@k8master-1 ~]# calicoctl node status
Calico process is running.

None of the BGP backend processes (BIRD or GoBGP) are running.

Calico IPam结果

calicoctl ipam show
+----------+-----------------+-----------+------------+--------------+
| GROUPING |      CIDR       | IPS TOTAL | IPS IN USE |   IPS FREE   |
+----------+-----------------+-----------+------------+--------------+
| IP Pool  | 10.244.0.0/16   |     65536 | 1 (0%)     | 65535 (100%) |
| IP Pool  | 192.168.16.0/24 |       256 | 3 (1%)     | 253 (99%)    |
+----------+-----------------+-----------+------------+--------------+

Calico ipam块

[root@k8master-1 ~]# calicoctl ipam show --show-blocks
+----------+-----------------+-----------+------------+--------------+
| GROUPING |      CIDR       | IPS TOTAL | IPS IN USE |   IPS FREE   |
+----------+-----------------+-----------+------------+--------------+
| IP Pool  | 10.244.0.0/16   |     65536 | 1 (0%)     | 65535 (100%) |
| Block    | 10.244.0.0/26   |        64 | 1 (2%)     | 63 (98%)     |
| IP Pool  | 192.168.16.0/24 |       256 | 3 (1%)     | 253 (99%)    |
| Block    | 192.168.16.0/24 |       256 | 3 (1%)     | 253 (99%)    |
+----------+-----------------+-----------+------------+--------------+

Calico的借用IP列表

[root@k8master-1 ~]# calicoctl ipam show --show-borrowed
+---------------+----------------+-----------------+-------------+------+--------------------+
|      IP       | BORROWING-NODE |      BLOCK      | BLOCK OWNER | TYPE |    ALLOCATED-TO    |
+---------------+----------------+-----------------+-------------+------+--------------------+
| 192.168.16.39 | k8worker-2     | 192.168.16.0/24 |             | pod  | default/racnode1-0 |
| 192.168.16.41 | k8worker-2     | 192.168.16.0/24 |             | pod  | default/racnode1-0 |
| 192.168.16.42 | k8worker-1     | 192.168.16.0/24 |             | pod  | default/racnode2-0 |
+---------------+----------------+-----------------+-------------+------+--------------------+

Answer 1

我也有类似的问题。我在同一个命名空间中创建了两个pod nginx和busybox，但我无法使用calico网络插件从busybox ping nginx pod。如果我暴露为节点端口，我可以从运行nginx pod的节点连接到pod。如果您尝试从其他k8群集节点访问节点端口，它将无法工作。我仍在努力找出原因，但到目前为止还没有线索。