一，Docker莫名登录失败, 在登录名与密码正常的前提下

原因：这是由于当初配置阿里云加速器，地址默认变成了如下阿里云的镜像地址

{
	"auths": {
		"https://y0qd3iq.mirror.aliyuncs.com": {}
	},
	"HttpHeaders": {
		"User-Agent": "Docker-Client/19.03.6 (linux)"
	},
	"credsStore": "secretservice"
}

解决：删除 ~/.docker/config.json文件

重新登录后success,并在~/.docker/目录下重新生成config.json

{
	"auths": {
		"https://index.docker.io/v1/": {
			"auth": "NzMxNzgxOTg0Onlhbmc3MzE3ODE5ODQxMDI0"
		}
	},
	"HttpHeaders": {
		"User-Agent": "Docker-Client/19.03.6 (linux)"
	}
}

 二，docker-compse构建报错

docker.credentials.errors.InitializationError: docker-credential-secretservice not installed or not available in PATH
[10861] Failed to execute script docker-compose

解决：同上

rm -f ~/.docker/config.json

完