k8s安装网络插件weave

参考部署：https://blog.csdn.net/shuaihj/article/details/122963090
下载镜像1：https://newreleases.io/project/github/weaveworks/weave/release/v2.8.1
下载镜像2：https://loongson-cloud-community.github.io/Loongson-Cloud-Community/%E7%A7%BB%E6%A4%8D%E6%89%8B%E5%86%8C/weaveworks-weave/

一、下载所需镜像

所需镜像
image: 'netcorecore/weave-kube:v2.8.1'
image: 'netcorecore/weave-npc:v2.8.1
===
docker pull swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/weaveworks/weave-kube:2.8.1
docker tag swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/weaveworks/weave-kube:2.8.1 netcorecore/weave-kube:v2.8.1
docker pull netcorecore/weave-npc:v2.8.1

二、部署weave到k8s集群

wget http://static.corecore.cn/weave.v2.8.1.yaml
[root@k8smaster weaves]# kubectl apply -f weave.v2.8.1.yaml
serviceaccount/weave-net created
clusterrole.rbac.authorization.k8s.io/weave-net created
clusterrolebinding.rbac.authorization.k8s.io/weave-net created
role.rbac.authorization.k8s.io/weave-net created
rolebinding.rbac.authorization.k8s.io/weave-net created
daemonset.apps/weave-net created
[root@k8smaster weaves]# kubectl get pod -A |grep wea
kube-system weave-net-ctt2w 0/2 Init:ErrImagePull 0 4m14s
kube-system weave-net-jbpjw 2/2 Running 1 4m14s
kube-system weave-net-vq545 0/2 Init:ImagePullBackOff 0 4m14s
[root@k8smaster weaves]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8smaster Ready master 92m v1.18.0
k8snode1 NotReady <none> 88m v1.18.0
k8snode2 NotReady <none> 88m v1.18.0

现在把镜像拷贝到node节点，让其他节点保持Ready状态。就可以使用了。

三、拷贝镜像到node节点

因为下载镜像比较麻烦，所以选择内部消化。
[root@k8smaster ~]# docker save -o weave-npc:v2.8.1.tar.gz netcorecore/weave-npc:v2.8.1
[root@k8smaster ~]# docker save -o weave-kube:v2.8.1.tar.gz netcorecore/weave-kube:v2.8.1
[root@k8smaster ~]# python -m SimpleHTTPServer

[root@k8snode1 ~]# wget 192.168.1.80:8000/weave-kube:v2.8.1.tar.gz
[root@k8snode1 ~]# wget 192.168.1.80:8000/weave-npc:v2.8.1.tar.gz

[root@k8snode1 ~]# docker load -i weave-kube\:v2.8.1.tar.gz
[root@k8snode1 ~]# docker load -i weave-npc\:v2.8.1.tar.gz

[root@k8smaster weaves]# kubectl get nodes
NAME STATUS ROLES AGE VERSION
k8smaster Ready master 112m v1.18.0
k8snode1 Ready <none> 108m v1.18.0
k8snode2 Ready <none> 108m v1.18.0

四、测试kubernetes集群

在Kubernetes集群中创建一个pod，验证是否正常运行：
[root@k8smaster ~]# kubectl create deployment myapp --image=swr.cn-north-4.myhuaweicloud.com/ddn-k8s/docker.io/wangyanglinux/myapp:v1
[root@k8smaster ~]# kubectl expose deployment myapp --port=80 --type=NodePort
[root@k8smaster ~]# kubectl get pod,svc -owide
NAME READY STATUS RESTARTS AGE IP NODE NOMINATED NODE READINESS GATES
pod/myapp-5ccc959b6c-8vz85 1/1 Running 0 23s 10.40.0.1 k8snode1 <none> <none>

NAME TYPE CLUSTER-IP EXTERNAL-IP PORT(S) AGE SELECTOR
service/kubernetes ClusterIP 10.96.0.1 <none> 443/TCP 122m <none>
service/myapp NodePort 10.101.134.75 <none> 80:31288/TCP 15s app=myapp
[root@k8smaster ~]# curl 192.168.1.81:31288
Hello MyApp | Version: v1 | <a href="hostname.html">Pod Name</a>

访问地址：http://NodeIP:Port

五、各节点ip信息

如下配置，

[root@k8smaster ~]# ifconfig 
datapath: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1376
        inet6 fe80::286a:2cff:fe73:7048  prefixlen 64  scopeid 0x20<link>
        ether 2a:6a:2c:73:70:48  txqueuelen 1000  (Ethernet)
        RX packets 42  bytes 2544 (2.4 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 8  bytes 656 (656.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

docker0: flags=4099<UP,BROADCAST,MULTICAST>  mtu 1500
        inet 172.17.0.1  netmask 255.255.0.0  broadcast 172.17.255.255
        ether 02:42:e3:4d:7b:1a  txqueuelen 0  (Ethernet)
        RX packets 0  bytes 0 (0.0 B)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 0  bytes 0 (0.0 B)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

ens33: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1500
        inet 192.168.1.80  netmask 255.255.255.0  broadcast 192.168.1.255
        inet6 240e:3b2:32d9:cca0:8443:af24:bb6a:212a  prefixlen 64  scopeid 0x0<global>
        inet6 fe80::7367:d57a:94e2:e09d  prefixlen 64  scopeid 0x20<link>
        ether 00:0c:29:40:50:1d  txqueuelen 1000  (Ethernet)
        RX packets 327736  bytes 423485437 (403.8 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 253273  bytes 499835393 (476.6 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

lo: flags=73<UP,LOOPBACK,RUNNING>  mtu 65536
        inet 127.0.0.1  netmask 255.0.0.0
        inet6 ::1  prefixlen 128  scopeid 0x10<host>
        loop  txqueuelen 1000  (Local Loopback)
        RX packets 1206999  bytes 274990961 (262.2 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1206999  bytes 274990961 (262.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vethwe-bridge: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1376
        inet6 fe80::40d2:e9ff:fedd:29ad  prefixlen 64  scopeid 0x20<link>
        ether 42:d2:e9:dd:29:ad  txqueuelen 0  (Ethernet)
        RX packets 50  bytes 4116 (4.0 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 31  bytes 2896 (2.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vethwe-datapath: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1376
        inet6 fe80::c871:8ff:fe21:d179  prefixlen 64  scopeid 0x20<link>
        ether ca:71:08:21:d1:79  txqueuelen 0  (Ethernet)
        RX packets 1206999  bytes 274990961 (262.2 MiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 1206999  bytes 274990961 (262.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vethwepl86b3389: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1376
        inet6 fe80::e83b:46ff:fe57:91de  prefixlen 64  scopeid 0x20<link>
        ether ea:3b:46:57:91:de  txqueuelen 0  (Ethernet)
        RX packets 3670  bytes 251265 (245.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3699  bytes 1348038 (1.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vethweplfb23eca: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1376
        inet6 fe80::f8ea:a9ff:fecd:2813  prefixlen 64  scopeid 0x20<link>
        ether fa:ea:a9:cd:28:13  txqueuelen 0  (Ethernet)
        RX packets 3670  bytes 251265 (245.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3699  bytes 1348038 (1.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

vxlan-6784: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 65535
        inet6 fe80::b8dc:2fff:fefd:15f8  prefixlen 64  scopeid 0x20<link>
        ether ba:dc:2f:fd:15:f8  txqueuelen 1000  (Ethernet)
        RX packets 201  bytes 226860 (221.5 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 178  bytes 227178 (221.8 KiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

weave: flags=4163<UP,BROADCAST,RUNNING,MULTICAST>  mtu 1376
        inet 10.32.0.1  netmask 255.240.0.0  broadcast 10.47.255.255
        inet6 fe80::88f8:f1ff:feb1:7f2b  prefixlen 64  scopeid 0x20<link>
        ether 8a:f8:f1:b1:7f:2b  txqueuelen 1000  (Ethernet)
        RX packets 3670  bytes 251265 (245.3 KiB)
        RX errors 0  dropped 0  overruns 0  frame 0
        TX packets 3699  bytes 1348038 (1.2 MiB)
        TX errors 0  dropped 0 overruns 0  carrier 0  collisions 0

[root@k8smaster ~]# ip a
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: ens33: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
    link/ether 00:0c:29:40:50:1d brd ff:ff:ff:ff:ff:ff
    inet 192.168.1.80/24 brd 192.168.1.255 scope global noprefixroute ens33
       valid_lft forever preferred_lft forever
    inet6 240e:3b2:32d9:cca0:8443:af24:bb6a:212a/64 scope global noprefixroute dynamic 
       valid_lft 188836sec preferred_lft 102436sec
    inet6 fe80::7367:d57a:94e2:e09d/64 scope link noprefixroute 
       valid_lft forever preferred_lft forever
3: docker0: <NO-CARRIER,BROADCAST,MULTICAST,UP> mtu 1500 qdisc noqueue state DOWN group default 
    link/ether 02:42:e3:4d:7b:1a brd ff:ff:ff:ff:ff:ff
    inet 172.17.0.1/16 brd 172.17.255.255 scope global docker0
       valid_lft forever preferred_lft forever
4: datapath: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1376 qdisc noqueue state UNKNOWN group default qlen 1000
    link/ether 2a:6a:2c:73:70:48 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::286a:2cff:fe73:7048/64 scope link 
       valid_lft forever preferred_lft forever
6: weave: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1376 qdisc noqueue state UP group default qlen 1000
    link/ether 8a:f8:f1:b1:7f:2b brd ff:ff:ff:ff:ff:ff
    inet 10.32.0.1/12 brd 10.47.255.255 scope global weave
       valid_lft forever preferred_lft forever
    inet6 fe80::88f8:f1ff:feb1:7f2b/64 scope link 
       valid_lft forever preferred_lft forever
7: dummy0: <BROADCAST,NOARP> mtu 1500 qdisc noop state DOWN group default qlen 1000
    link/ether ba:fb:5f:1b:a4:9e brd ff:ff:ff:ff:ff:ff
9: vethwe-datapath@vethwe-bridge: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1376 qdisc noqueue master datapath state UP group default 
    link/ether ca:71:08:21:d1:79 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::c871:8ff:fe21:d179/64 scope link 
       valid_lft forever preferred_lft forever
10: vethwe-bridge@vethwe-datapath: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1376 qdisc noqueue master weave state UP group default 
    link/ether 42:d2:e9:dd:29:ad brd ff:ff:ff:ff:ff:ff
    inet6 fe80::40d2:e9ff:fedd:29ad/64 scope link 
       valid_lft forever preferred_lft forever
11: vxlan-6784: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 65535 qdisc noqueue master datapath state UNKNOWN group default qlen 1000
    link/ether ba:dc:2f:fd:15:f8 brd ff:ff:ff:ff:ff:ff
    inet6 fe80::b8dc:2fff:fefd:15f8/64 scope link 
       valid_lft forever preferred_lft forever
13: vethweplfb23eca@if12: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1376 qdisc noqueue master weave state UP group default 
    link/ether fa:ea:a9:cd:28:13 brd ff:ff:ff:ff:ff:ff link-netnsid 0
    inet6 fe80::f8ea:a9ff:fecd:2813/64 scope link 
       valid_lft forever preferred_lft forever
15: vethwepl86b3389@if14: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1376 qdisc noqueue master weave state UP group default 
    link/ether ea:3b:46:57:91:de brd ff:ff:ff:ff:ff:ff link-netnsid 1
    inet6 fe80::e83b:46ff:fe57:91de/64 scope link 
       valid_lft forever preferred_lft forever
[root@k8smaster ~]# ip r
default via 192.168.1.1 dev ens33 proto static metric 100 
10.32.0.0/12 dev weave proto kernel scope link src 10.32.0.1 
172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 
192.168.1.0/24 dev ens33 proto kernel scope link src 192.168.1.80 metric 100