由 dawei
有没有办法定义法兰绒应该在哪个界面听？根据
his documentation在/ etc / sysconfig / flanneld中添加FLANNEL_OPTIONS =“ – iface = enp0s8”应该可行,但事实并非如此.
我的主节点配置在xenial(ubuntu 16.04)vagrant中运行：
$sudo kubeadm init --pod-network-cidr 10.244.0.0/16 --apiserver-advertise-address 10.0.0.10 $kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/kube-flannel.yml clusterrole "flannel" created clusterrolebinding "flannel" created serviceaccount "flannel" created configmap "kube-flannel-cfg" created daemonset "kube-flannel-ds" created ubuntu@master:~$kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/master/Documentation/k8s-manifests/kube-flannel-rbac.yml clusterrole "flannel" configured clusterrolebinding "flannel" configured
主机IP地址：
$ip addr
1: lo: <LOOPBACK,UP,LOWER_UP> mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1
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: enp0s3: <BROADCAST,MULTICAST,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 02:63:8e:2c:ef:cd brd ff:ff:ff:ff:ff:ff
inet 10.0.2.15/24 brd 10.0.2.255 scope global enp0s3
valid_lft forever preferred_lft forever
inet6 fe80::63:8eff:fe2c:efcd/64 scope link
valid_lft forever preferred_lft forever
3: enp0s8: <BROADCAST,LOWER_UP> mtu 1500 qdisc pfifo_fast state UP group default qlen 1000
link/ether 08:00:27:fb:ad:bb brd ff:ff:ff:ff:ff:ff
inet 10.0.0.10/24 brd 10.0.0.255 scope global enp0s8
valid_lft forever preferred_lft forever
4: docker0: <NO-CARRIER,BROADCAST,UP> mtu 1500 qdisc noqueue state DOWN group default
link/ether 02:42:da:aa:6e:13 brd ff:ff:ff:ff:ff:ff
inet 172.17.0.1/16 scope global docker0
valid_lft forever preferred_lft forever
5: flannel.1: <BROADCAST,LOWER_UP> mtu 1450 qdisc noqueue state UNKNOWN group default
link/ether 5e:07:a1:7f:97:53 brd ff:ff:ff:ff:ff:ff
inet 10.244.0.0/32 scope global flannel.1
valid_lft forever preferred_lft forever
inet6 fe80::5c07:a1ff:fe7f:9753/64 scope link
valid_lft forever preferred_lft forever
6: cni0: <NO-CARRIER,UP> mtu 1500 qdisc noqueue state DOWN group default qlen 1000
link/ether 0a:58:0a:f4:00:01 brd ff:ff:ff:ff:ff:ff
inet 10.244.0.1/24 scope global cni0
valid_lft forever preferred_lft forever
inet6 fe80::7037:fcff:fe41:b1fb/64 scope link
valid_lft forever preferred_lft forever
豆荚名称：
$kubectl get pods --all-namespaces NAMESPACE NAME READY STATUS RESTARTS AGE kube-system etcd-master 1/1 Running 0 2m kube-system kube-apiserver-master 1/1 Running 0 2m kube-system kube-controller-manager-master 1/1 Running 0 2m kube-system kube-dns-545bc4bfd4-gjjth 0/3 ContainerCreating 0 3m kube-system kube-flannel-ds-gdz8f 1/1 Running 0 1m kube-system kube-flannel-ds-h4fd2 1/1 Running 0 33s kube-system kube-flannel-ds-rnlsz 1/1 Running 1 33s kube-system kube-proxy-d4wv9 1/1 Running 0 33s kube-system kube-proxy-fdkqn 1/1 Running 0 3m kube-system kube-proxy-kj7tn 1/1 Running 0 33s kube-system kube-scheduler-master 1/1 Running 0 2m
法兰绒原木：
$kubectl logs -n kube-system kube-flannel-ds-gdz8f -c kube-flannel I1216 12:00:35.817207 1 main.go:474] Determining IP address of default interface I1216 12:00:35.822082 1 main.go:487] Using interface with name enp0s3 and address 10.0.2.15 I1216 12:00:35.822335 1 main.go:504] Defaulting external address to interface address (10.0.2.15) I1216 12:00:35.909906 1 kube.go:130] Waiting 10m0s for node controller to sync I1216 12:00:35.909950 1 kube.go:283] Starting kube subnet manager I1216 12:00:36.987719 1 kube.go:137] Node controller sync successful I1216 12:00:37.087300 1 main.go:234] Created subnet manager: Kubernetes Subnet Manager - master I1216 12:00:37.087433 1 main.go:237] Installing signal handlers I1216 12:00:37.088836 1 main.go:352] Found network config - Backend type: vxlan I1216 12:00:37.089018 1 vxlan.go:119] VXLAN config: VNI=1 Port=0 GBP=false DirectRouting=false I1216 12:00:37.295988 1 main.go:299] Wrote subnet file to /run/flannel/subnet.env I1216 12:00:37.296025 1 main.go:303] Running backend. I1216 12:00:37.296048 1 main.go:321] Waiting for all goroutines to exit I1216 12:00:37.296084 1 vxlan_network.go:56] watching for new subnet leases
如何在kubernetes中配置flannel以在enp0s8而不是enp0s3中进行监听？
我有同样的问题,尝试使用k8s和Vagrant.
我在
documentation of flannel中找到了这个注释：
Vagrant typically assigns two interfaces to all VMs. The first,for
which all hosts are assigned the IP address 10.0.2.15,is for external
traffic that gets NATed.This may lead to problems with flannel. By default,flannel selects
the first interface on a host. This leads to all hosts thinking they
have the same public IP address. To prevent this issue,pass the
–iface eth1 flag to flannel so that the second interface is chosen.
所以我在法兰绒的吊舱配置中寻找它.
如果您下载了kube-flannel.yml文件,您应该查看DaemonSet规范,特别是在“kube-flannel”容器中.在那里,你应该添加所需的“–iface = enp0s8”参数(不要忘记“=”).我用过的部分代码.
containers:
- name: kube-flannel
image: quay.io/coreos/flannel:v0.10.0-amd64
command:
- /opt/bin/flanneld
args:
- --ip-masq
- --kube-subnet-mgr
- --iface=enp0s8
然后运行kubectl apply -f kube-flannel.yml
希望有所帮助