calico客户端工具calicoctl

工具介绍

Calico的二进制程序文件calicoctl可以直接操作Calico存储来查看,修改或配置Calico系统特性。

三种方式部署calicoctl:①二进制安装;②docker安装;③运行于kubernetes系统中

这里采用第一种方式:二进制安装

官网:https://docs.projectcalico.org/v3.6/getting-started/calicoctl/install 

 

测试环境

同上一篇k8s集群环境,如下

System Hostname IP calicoctl位置
CentOS 7.6 k8s-master 138.138.82.14 仅在master安装该命令
CentOS 7.6 k8s-node1 138.138.82.15
CentOS 7.6 k8s-node2 138.138.82.16

 

 

 

 

 

 

具体步骤

1. 下载二进制文件

[root@k8s-master ~]# wget https://github.com/projectcalico/calicoctl/releases/download/v3.5.4/calicoctl -O /usr/bin/calicoctl
[root@k8s-master ~]# chmod +x /usr/bin/calicoctl

 

2. 添加calicoctl配置文件

calicoctl通过读写calico的数据存储系统(datastore)进行查看或者其他各类管理操作,通常,它需要提供认证信息经由相应的数据存储完成认证。在使用Kubernetes API数据存储时,需要使用类似kubectl的认证信息完成认证。它可以通过环境变量声明的DATASTORE_TYPE和KUBECONFIG接入集群,例如以下命令格式运行calicoctl:

[root@k8s-master ~]# DATASTORE_TYPE=kubernetes KUBECONFIG=~/.kube/config calicoctl get nodes
NAME         
k8s-master   
k8s-node1    
k8s-node2    

也可以直接将认证信息等保存于配置文件中,calicoctl默认加载 /etc/calico/calicoctl.cfg 配置文件读取配置信息,如下所示:

[root@k8s-master ~]# cat /etc/calico/calicoctl.cfg
apiVersion: projectcalico.org/v3
kind: CalicoAPIConfig
metadata:
spec:
  datastoreType: "kubernetes"
  kubeconfig: "/root/.kube/config"
[root@k8s-master ~]# calicoctl get nodes
NAME         
k8s-master   
k8s-node1    
k8s-node2  

 

3. 测试calicoctl命令

[root@k8s-master ~]# calicoctl node status
Calico process is running.

IPv4 BGP status
+---------------+-------------------+-------+----------+-------------+
| PEER ADDRESS  |     PEER TYPE     | STATE |  SINCE   |    INFO     |
+---------------+-------------------+-------+----------+-------------+
| 138.138.82.15 | node-to-node mesh | up    | 09:03:56 | Established |
| 138.138.82.16 | node-to-node mesh | up    | 09:04:08 | Established |
+---------------+-------------------+-------+----------+-------------+

IPv6 BGP status
No IPv6 peers found.
[root@k8s-master ~]# calicoctl get ipPool -o yaml
apiVersion: projectcalico.org/v3
items:
- apiVersion: projectcalico.org/v3
  kind: IPPool
  metadata:
    creationTimestamp: 2019-04-28T08:53:12Z
    name: default-ipv4-ippool
    resourceVersion: "1799"
    uid: 0df17422-6993-11e9-bde3-005056918222
  spec:
    blockSize: 26
    cidr: 192.168.0.0/16
    ipipMode: Always
    natOutgoing: true
    nodeSelector: all()
kind: IPPoolList
metadata:
  ……

以上就是calicoctl命令的简单安装和测试。

 

结束.

转载于:https://www.cnblogs.com/ding2016/p/10785892.html

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