08-27-周三_17-09-29

Kubernetes/常见命令手册.md

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+```shell
+# 通过 API 生成临时 Token（有效期 1 小时）
+kubectl create token calico-node -n kube-system --duration=1h
+
+# 检查 Token 有效性
+curl -k -H "Authorization: Bearer <TOKEN>" https://<API-SERVER>:6443/api/v1/namespaces/kube-system/pods
+
+# 升级chart
+helm upgrade ingress-nginx ./ingress-nginx -n ingress --values ./ingress-nginx/values.yaml
+
+# 清理缓存
+sudo killall -HUP mDNSResponder
+
+# 配置主从复制
+stop slave;
+change master to master_host='mysql-master',master_user='replicator',master_password='replicator123',master_log_file='mysql-bin.000001',master_log_pos=1786;
+start slave;
+
+# 清除所有复制配置（包括master.info文件）
+reset slave all; 
+
+# 访问业务
+[root@master01 resources]# curl -H "host: bbs.iproute.cn" 10.3.202.101:`kubectl get svc/ingress-nginx-controller -n ingress-nginx -o jsonpath="{.spec.ports[?(@.port==80)].nodePort}" -n ingress`
+
+# calicoctl相关命令
+[root@master01 ~]# ./calicoctl-linux-amd64 node status
+Calico process is running.
+
+IPv4 BGP status
++--------------+-------------------+-------+----------+-------------+
+| PEER ADDRESS |     PEER TYPE     | STATE |  SINCE   |    INFO     |
++--------------+-------------------+-------+----------+-------------+
+| 10.3.204.101 | node-to-node mesh | up    | 05:11:14 | Established |
+| 10.3.204.102 | node-to-node mesh | up    | 05:12:46 | Established |
++--------------+-------------------+-------+----------+-------------+
+
+[root@master01 ~]# ./calicoctl-linux-amd64 get ipPool --allow-version-mismatch -o wide
+NAME                  CIDR            NAT    IPIPMODE   VXLANMODE   DISABLED   SELECTOR
+default-ipv4-ippool   10.244.0.0/16   true   Never      Never       false      all()
+[root@master01 ~]# calicoctl ipam show --show-blocks --allow-version-mismatch
+[root@master01 ~]# calicoctl ipam show --allow-version-mismatch
++----------+---------------+-----------+------------+-------------+
+| GROUPING |     CIDR      | IPS TOTAL | IPS IN USE |  IPS FREE   |
++----------+---------------+-----------+------------+-------------+
+| IP Pool  | 10.244.0.0/16 |     65536 | 2294 (4%)  | 63242 (96%) |
++----------+---------------+-----------+------------+-------------+
+```