docker login失败：err: exit status 1, Try “pass init“

要docker push新镜像时，首先要login,
但是login时输入完password后出现如下错误：

Error saving credentials: error storing credentials - err: exit status 1, out: error storing credentials - err: exit status 1, out: pass not initialized: exit status 1: Error: password store is empty. Try “pass init”.``

解决方法：

1. 下载docker-credential-pass 下载地址

2. tar -xvf docker-credential-pass-v0.6.4-amd64.tar.gz

3. chmod u+x docker-credential-pass

4. mv docker-credential-pass /usr/bin/.

5. 设置docker-credential-pass

5.1) install gpg and pass (apt-get install gpg pass)

5.2) gpg --generate-key, 要填入姓名邮箱等信息. 输入新的password之后会产生一个rsa key，如下:

pub rsa3072 2018-10-07 [SC] [expires: 2020-10-06]
1234567890ABCDEF1234567890ABCDEF12345678