无法使用let's encrypt自动安装证书，报错无法初始化api

ddhello

[Mon 15 Feb 2021 10:32:28 PM CST] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 28
[Mon 15 Feb 2021 10:32:28 PM CST] Can not init api.
[Mon 15 Feb 2021 10:32:28 PM CST] Using CA: https://acme-v02.api.letsencrypt.org/directory
[Mon 15 Feb 2021 10:37:29 PM CST] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 28
[Mon 15 Feb 2021 10:37:29 PM CST] Can not init api.
[Mon 15 Feb 2021 10:37:29 PM CST] Registering account: https://acme-v02.api.letsencrypt.org/directory
[Mon 15 Feb 2021 10:42:30 PM CST] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 28
[Mon 15 Feb 2021 10:42:30 PM CST] Could not get nonce, let's try again.
[Mon 15 Feb 2021 10:46:33 PM CST] Please refer to https://curl.haxx.se/libcurl/c/libcurl-errors.html for error code: 35
[Mon 15 Feb 2021 10:46:33 PM CST] Could not get nonce, let's try again.

licess

error code: 28 的话是连接超时，有可能你网络连接到letsencrypt网络不畅通

error code: 35的话是SSL握手时报错，有可能系统上openssl版本问题，可以尝试在生成证书之前执行 export ACME_USE_WGET=1