tongchenkeji 发表于:2022-3-16 8:28:540次点击 已关注取消关注 关注 私信 flannel的集群、POD访问内网rds、slb实例的网络过程?[阿里云负载均衡SLB] 暂停朗读为您朗读 flannel的集群、POD访问内网rds、slb实例的网络过程? 「点点赞赏,手留余香」 赞赏 还没有人赞赏,快来当第一个赞赏的人吧! 海报 负载均衡SLB# Perl138# RDS654# 云数据库 RDS MySQL 版1517# 关系型数据库2577# 负载均衡495
叶秋学长AM 2023-11-27 9:46:04 1 Flannel是一个开源的网络编程库,主要用于Kubernetes集群中的网络拓扑和IP地址规划。它可以将多个Pod聚合到一个虚拟的网络中,使得这些Pod可以像单个节点一样访问网络资源。下面是使用Flannel进行集群、POD访问内网RDS和SLB实例的网络过程: 部署Flannel:在Kubernetes集群中部署Flannel,可以通过kubectl命令进行部署。例如,使用以下命令部署Flannel:bashCopy codekubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.12.0/Documentation/kube-flannel.yml创建网络:使用Flannel创建一个网络,可以通过以下命令进行创建:bashCopy codekubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.12.0/Documentation/advanced-networking.yml配置Pod访问内网RDS和SLB实例:在Pod配置文件中添加Flannel的命名空间和网络接口信息,以便Pod可以访问内网RDS和SLB实例。例如,可以使用以下命令配置Pod访问内网RDS:bashCopy codekubectl edit pod/my-pod -n my-network在Pod配置文件中添加以下内容: yamlCopy codeapiVersion: v1kind: Podmetadata: name: my-podspec: containers: name: my-containerimage: my-imagecommand: [“/bin/bash”]args: [“-c”, “sleep 1000”]networks: name: my-networkipam: config: - subnet: 10.0.0.0/16 cidr: 10.0.0.0/24 gateway: 10.0.0.1- subnet: 10.0.1.0/16 cidr: 10.0.1.0/24 gateway: 10.0.1.1 volumeMounts: mountPath: /var/run/docker.sockname: docker-sock mountPath: /etc/resolv.confname: resolv.conf mountPath: /etc/hostsname: hosts mountPath: /etc/netplanname: netplan.conf mountPath: /etc/NetworkManager/NetworkManager.confname: network-manager.conf mountPath: /etc/iptables/rulesname: iptables-rules mountPath: /etc/iptables/chainname: iptables-chain mountPath: /etc/iptables/ipv6name: iptables-ipv6 mountPath: /etc/netfilter/iptables/iptablesname: iptablesiptables mountPath: /etc/netfilter/iptables/ipv6name: iptablesipv6iptables mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_natname: nf_nat mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter/nf_tablesname: nf_tables mountPath: /etc/netfilter/nf_conntrackname: nf_conntrack mountPath: /etc/netfilter
Flannel是一个开源的网络编程库,主要用于Kubernetes集群中的网络拓扑和IP地址规划。它可以将多个Pod聚合到一个虚拟的网络中,使得这些Pod可以像单个节点一样访问网络资源。
下面是使用Flannel进行集群、POD访问内网RDS和SLB实例的网络过程:
部署Flannel:在Kubernetes集群中部署Flannel,可以通过kubectl命令进行部署。例如,使用以下命令部署Flannel:
bash
Copy code
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.12.0/Documentation/kube-flannel.yml
创建网络:使用Flannel创建一个网络,可以通过以下命令进行创建:
bash
Copy code
kubectl apply -f https://raw.githubusercontent.com/coreos/flannel/v0.12.0/Documentation/advanced-networking.yml
配置Pod访问内网RDS和SLB实例:在Pod配置文件中添加Flannel的命名空间和网络接口信息,以便Pod可以访问内网RDS和SLB实例。例如,可以使用以下命令配置Pod访问内网RDS:
bash
Copy code
kubectl edit pod/my-pod -n my-network
在Pod配置文件中添加以下内容:
yaml
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apiVersion: v1
kind: Pod
metadata:
name: my-pod
spec:
containers:
image: my-image
command: [“/bin/bash”]
args: [“-c”, “sleep 1000”]
networks:
ipam:
config:
name: docker-sock
name: resolv.conf
name: hosts
name: netplan.conf
name: network-manager.conf
name: iptables-rules
name: iptables-chain
name: iptables-ipv6
name: iptablesiptables
name: iptablesipv6iptables
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
name: nf_nat
name: nf_conntrack
name: nf_tables
name: nf_conntrack
我们可以假设slb是在集群外的slb。flannel总共包括应用层、传输层、网络层以及网卡四个部分。
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