AirNet服务器迁移到容器

Posted 2022-03-13 技术支持department

1、POD设计,netshoot:latest作为sidecar，用于调试网络。

sdfp2-net.yaml设计
指定IP
      annotations:
        cni.projectcalico.org/ipAddrs: "[\\"172.16.135.135\\"]"
指定主机名称
      hostname: sdfp2  
      containers:
      - image: mi:v1
      ......
      - image: nicolaka/netshoot:latest
# k apply -f sdfp2-net.yaml
[root@sdfp2 ~]# k get pod
NAME                                 READY   STATUS    RESTARTS   AGE
sdfp2-netshoot-dp-84f4d7b99d-5pvhm   2/2     Running   0          35m

进入sdfp2容器运行服务进程

# k exec -ti sdfp2-netshoot-dp-84f4d7b99d-5pvhm  -c sdfp2 -- bash
拷贝license.ini,mid.xml——>/home/cdatc/AirNet/config/gconf/mid/；network.xml——>/home/cdatc/AirNet/config/(也需更新mid.xml，否则提示授权问题)
# /usr/local/redis/bin/redis-server /usr/local/redis/conf/redis.conf   1>/dev/null 2>&1
# /usr/local/redis/bin/redis-server /usr/local/redis/conf/redis_6378.conf 1>/dev/null 2>&1
# setsid bash -c /home/cdatc/AirNet/bin/mnt >/dev/null 2>&1  &
top查看mnt\\mid\\afp\\rfp正常运行

进入sidecar容器查看组播​172.16.135.135​.50849 >​ 225.1.0.1​.40002

# k exec -ti sdfp2-netshoot-dp-84f4d7b99d-5pvhm  -c netshoot -- bash
bash-5.1# tcpdump -i eth0 -n
tcpdump: verbose output suppressed, use -v[v]... for full protocol decode
listening on eth0, link-type EN10MB (Ethernet), snapshot length 262144 bytes
10:53:34.922499 IP 172.16.135.135.58814 > 225.1.0.1.40003: UDP, length 36
10:53:34.922766 IP 172.16.135.135.48636 > 225.1.0.1.40003: UDP, length 340
10:53:34.939140 IP 172.16.135.135.50849 > 225.1.0.1.40002: UDP, length 1399

k8s集群环境，但是组播在宿主机上和集群中别的node上抓不到，​组播只局限在POD内部​。

——部署另一个POD，两个POD之间彼此tcpdump看不到对方的组播包。

——添加Service，type: NodePort/ClusterIP测试也看不到对方的组播包。

2、​*​实际系统上SDFP1将eth1/eth2网线拔掉，eth0的IP改为192.168.15.50，相应修改license.ini和network.xml,抓包组播ok，SDFP1主态，SDD有航迹显示。

#tcpdump -n -i eth0 |grep 192.168.15.50
...IP 192.168.15.50.21136 > 255.1.0.2.40200: UDP,length 442