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修复calico的BGP RR模式下的bgppeer的nodeSelector错误 

首先要说明的是，按照原文档的配置，最终是可以形成可用的rr节点和bgp连接的，但是不严谨。
根据我实际的操作情况来看，`nodeSelector: !has(i-am-a-route-reflector)` 这种写法是无效的，并且创建出来的bgppeer是不会包含nodeSelector这一字段的，除非加上双引号“”（calico的官方文档也是含有双引号的）。
而之所以原有的写法可以成功，是因为当bgppeer没有nodeSelector时，会将它设置为global的，global的意思就是说所有的节点都会与RR节点建立连接；但很显然，原有的目的是让所有非RR节点与RR节点建立连接，同时RR节点之间建立连接；并且按照原写法rr-mesh这个bgppeer其实也是不起作用的，因为global已包含RR节点之间的连接。
pull/746/head
xieyanker 2019-11-20 17:56:14 +08:00 committed by jmgao
parent ecf1d28003
commit 17fb960e01
1 changed files with 5 additions and 5 deletions
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10
docs/setup/network-plugin/calico-bgp-rr.md
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@ -118,7 +118,7 @@ metadata:
name: peer-to-rrs
spec:
# 规则1：普通 bgp node 与 rr 建立连接
nodeSelector: !has(i-am-a-route-reflector)
nodeSelector: "!has(i-am-a-route-reflector)"
peerSelector: has(i-am-a-route-reflector)
---
@ -198,9 +198,9 @@ Calico process is running.
IPv4 BGP status
+--------------+-----------+-------+----------+-------------+
| PEER ADDRESS | PEER TYPE | STATE | SINCE | INFO |
| PEER ADDRESS | PEER TYPE | STATE | SINCE | INFO |
+--------------+-----------+-------+----------+-------------+
| 192.168.1.1 | global | up | 11:02:55 | Established |
| 192.168.1.1 | node specific | up | 11:02:55 | Established |
+--------------+-----------+-------+----------+-------------+
IPv6 BGP status
@ -213,7 +213,7 @@ IPv4 BGP status
+--------------+-----------+-------+----------+-------------+
| PEER ADDRESS | PEER TYPE | STATE | SINCE | INFO |
+--------------+-----------+-------+----------+-------------+
| 192.168.1.1 | global | up | 11:02:55 | Established |
| 192.168.1.1 | node specific | up | 11:02:55 | Established |
+--------------+-----------+-------+----------+-------------+
IPv6 BGP status
@ -241,7 +241,7 @@ IPv4 BGP status
+--------------+-----------+-------+----------+-------------+
| PEER ADDRESS | PEER TYPE | STATE | SINCE | INFO |
+--------------+-----------+-------+----------+-------------+
| 192.168.1.1 | global | up | 11:02:55 | Established |
| 192.168.1.1 | node specific | up | 11:02:55 | Established |
+--------------+-----------+-------+----------+-------------+
IPv6 BGP status