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技术 2022年11月23日
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解决思路:

kubectl 默认从 ~/.kube/config 配置文件获取访问 kube-apiserver 地址、证书、用户名等信息,如果没有配置该文件,或者该文件个别参数配置出错,执行命令时出错:The connection to the server localhost:8080 was refused – did you specify the right host or port?

解决办法:

1 查看该文件是否存在,若不存在则生成

2 查看该文件内容是否有缺,尤其是server字段,这个是kube-apiserver的地址,执行kubectl命令只要是跟这个地址进行交互操作

/root/.kube/config文件示例:

apiVersion: v1
clusters:
- cluster:
certificate-authority-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUR4akNDQXE2Z0F3SUJBZ0lVVTlNOFd4SGVnK3NpRldMM210TXp2cHBKQ3RBd0RRWUpLb1pJaHZjTkFRRUwKQlFBd2FERUxNQWtHQTFVRUJoTUNRMDR4RURBT0JnTlZCQWdUQjBKbGFVcHBibWN4RURBT0JnTlZCQWNUQjBKbAphVXBwYm1jeEREQUtCZ05WQkFvVEEyczRjekVTTUJBR0ExVUVDeE1KTkZCaGNtRmthV2R0TVJNd0VRWURWUVFECkV3cHJkV0psY201bGRHVnpNQ0FYRFRFNU1URXdOekExTkRFd01Gb1lEekl4TVRreE1ERTBNRFUwTVRBd1dqQm8KTVFzd0NRWURWUVFHRXdKRFRqRVFNQTRHQTFVRUNCTUhRbVZwU21sdVp6RVFNQTRHQTFVRUJ4TUhRbVZwU21sdQpaekVNTUFvR0ExVUVDaE1EYXpoek1SSXdFQVlEVlFRTEV3azBVR0Z5WVdScFoyMHhFekFSQmdOVkJBTVRDbXQxClltVnlibVYwWlhNd2dnRWlNQTBHQ1NxR1NJYjNEUUVCQVFVQUE0SUJEd0F3Z2dFS0FvSUJBUUNsMis0T0dzRi8Kc25KVFdFdkpYR21wWmpkN1ZNa1dOWkVwVVlraW1GNXNlYzZXUnNtcGcwSmtDWmN3VllXQmRHZXVXNXlIbENidgo3SXZ6RDFDSDAxMFNwWjRKWjNqc1JEY0p2RU5NRTd6TkN0WkRWV2N4ZlNUbW9tUlFmcEpFekVmdE9DVFMyK2E1CnJNT1VyUHRsdmJKbWdZSVNRMWFDUmpqYklpMSs0MGRIUHJocGwvMUJPQ2pISm53dG1BTFBBS2JsVDU5NEk2K2kKVVI2c1hheHVidHZLanF4dEVVVEJJL0RTeW5hZk5YTjM4WitPdEVTRElOOUFjTFdtSk1CcjY5cTBPTE8reUQyVQowenhsMVZFeFh0VFZzTEROa1hhanloZ1RuUDNVNXFTbUowOTF3MitCNmcxK1cwb3RFRGt0NUlhU1dncGlLdDBuCmZvUDVkbXhCSm5VUEFnTUJBQUdqWmpCa01BNEdBMVVkRHdFQi93UUVBd0lCQmpBU0JnTlZIUk1CQWY4RUNEQUcKQVFIL0FnRUNNQjBHQTFVZERnUVdCQlRaRHh0OFNJVmNYdVJOOGFId1pYYTFqNkZEY0RBZkJnTlZIU01FR0RBVwpnQlRaRHh0OFNJVmNYdVJOOGFId1pYYTFqNkZEY0RBTkJna3Foa2lHOXcwQkFRc0ZBQU9DQVFFQWFhNGNKQkxYCkRrdGtNaGdpSWdJTGlLcnFHNHcwdFVwK1B2RnZCdWhuWGs4bjg1b2hoRTZmQ1NPa1dqR0J2Z3BaZXU1N2ZNOVIKemdLRDFZZDZTcU9wQUdOZ2RpTDVxZDdRa05Hb0FCeWMxY0JlVSt1cXAzUFVTTEtlOG1zTXdaV1FvT2o2cnVENwpIVERtbHZBcldqVi9pbjk0ZXFJcWVVTnJQQVl3NGk1L0hKVVIvbWxIaEoyTCtLU3ltOG1NNGhaQjU1UTNEZjFTCmlrK3FUaUN4alBsVzVDaWhuaW5sbEFEcU1uZWsvUkRnbllpa2NJd3ZtdmlxMHM0SDBEOEsyRDVmZmVlSDB1ekwKZk5XTUZUQkxlckltUGpSb3FHWmhTbTRJZW5yS2hVTVNFN2h6K1JSMmFHVVptSjJRK3RLN0cyV1l0dWpVanArdgo2MmIrNDA5aUd4SjNKZz09Ci0tLS0tRU5EIENFUlRJRklDQVRFLS0tLS0K
server: https://127.0.0.1:8443
name: kubernetes
contexts:
- context:
cluster: kubernetes
user: admin
name: kubernetes
current-context: kubernetes
kind: Config
preferences: {}
users:
- name: admin
user:
client-certificate-data: LS0tLS1CRUdJTiBDRVJUSUZJQ0FURS0tLS0tCk1JSUQ0ekNDQXN1Z0F3SUJBZ0lVY0lBYmlTQm1jeDlDZDFMbjQrczlYY0l5cFhZd0RRWUpLb1pJaHZjTkFRRUwKQlFBd2FERUxNQWtHQTFVRUJoTUNRMDR4RURBT0JnTlZCQWdUQjBKbGFVcHBibWN4RURBT0JnTlZCQWNUQjBKbAphVXBwYm1jeEREQUtCZ05WQkFvVEEyczRjekVTTUJBR0ExVUVDeE1KTkZCaGNtRmthV2R0TVJNd0VRWURWUVFECkV3cHJkV0psY201bGRHVnpNQjRYRFRFNU1URXdOekEyTURjd01Gb1hEVEk1TVRFd05EQTJNRGN3TUZvd2JqRUwKTUFrR0ExVUVCaE1DUTA0eEVEQU9CZ05WQkFnVEIwSmxhVXBwYm1jeEVEQU9CZ05WQkFjVEIwSmxhVXBwYm1jeApGekFWQmdOVkJBb1REbk41YzNSbGJUcHRZWE4wWlhKek1SSXdFQVlEVlFRTEV3azBVR0Z5WVdScFoyMHhEakFNCkJnTlZCQU1UQldGa2JXbHVNSUlCSWpBTkJna3Foa2lHOXcwQkFRRUZBQU9DQVE4QU1JSUJDZ0tDQVFFQTR5MmwKNEsxWkdMMmdLbE5zVmZiUXpBQlI3Tis5bGxTeTFxNnU5NmVsMkxDeDgrQTZad25Ra2QyR0FiYTZWNDBwN3liWAptVGI4a3VXV0NXQ2Q0UmRsQk9BQ3ZsVEVFcDBFT0RQSGF3WHk4V2FMbTVLT2NpNy9LS1J5ZUErRUIwWklkTmhiCm1pSmloU0xFb21YMEhKY2FYOUM3Vkl0SEl3QmUzbXhIRTdFZ1Bid0VpNGxDbkJwRHk0bElIaVlqTEN5ajJ6aWQKQkRyMVlBd2FiOE1URXlkUjhnazJ3V1d0eUtvdmNQTEdneHJHSjQ0czV5clVNcmtRVXFISXBpY0p3NUt4RVZtKwppWWFBVDh6N01BSllaOE9CWmNNSGdheTBrbGkxd0FqaVFTMzVCVTlvMC9EaGpXbWR3VGUwQTZVb3h6Q3dhcjkwCnh0Ry9vemMwd044RDJFd3YrUUlEQVFBQm8zOHdmVEFPQmdOVkhROEJBZjhFQkFNQ0JhQXdIUVlEVlIwbEJCWXcKRkFZSUt3WUJCUVVIQXdFR0NDc0dBUVVGQndNQ01Bd0dBMVVkRXdFQi93UUNNQUF3SFFZRFZSME9CQllFRklaQQo3NTJvcmh1MnJtMGl2T2ZaQktRb2tEUVlNQjhHQTFVZEl3UVlNQmFBRk5rUEczeEloVnhlNUUzeG9mQmxkcldQCm9VTndNQTBHQ1NxR1NJYjNEUUVCQ3dVQUE0SUJBUUE3Qm40dDV5cFppNm8xL01kQUM1QXhqVnp6NE1UZ285SlQKL3hDVG9OYlJPaVREaWx2U1RDUVVTbEV4b0pRVzlTTDRPbUw1VUpZa0lNNTI4K3F4OGxUenFTZ3JzLy94cGxhMwpXQXYwUDBzWEZObEllU0lGbW1Cd1VYNkxueUlCeFRGT0RpMmNibDdiVkt0eUpFVmFyakZjZFhMRlJXMHNlQm9IClU5SEtnSWZlamp3MVNIeVNCekNyUEtRMHY5bFpFMjE1SHF5a1VwYjM3akljM0FLTk5hdW5DRmpkaitwc2RnUDEKOVdtSWNjVDU3ejJ1YUhmZGZmUE9iRXZkTFQ2OU9idC92eWpEVU5hdm9ZZi8yVzNDRjM3MDNUcHNiWW95aW5OcQpldlNhOE1GMlUrTnRIeWNBYVBES2ZuTk92WFEwSHRqSThVekxHWmtIYjk2Vnpkd21LLzdnCi0tLS0tRU5EIENFUlRJRklDQVRFLS0tLS0K
client-key-data: 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