瀏覽器打開站點(diǎn)突然冒出net::HTTP2_ERROR之類，站點(diǎn)是套了一層鵝廠的CDN。
連忙登錄SSH，發(fā)現(xiàn)Caddy2 并沒有重啟過。
Caddyfile里加上
#頂部加上啊，表示開啟調(diào)試日志，輸出更加詳細(xì)
{
debug
}
扒一扒Caddy2日志
{"level":"warn","ts":1591004115.321159,"msg":"$HOME environment variable is empty - please fix; some assets might be stored in ./caddy"}
[ERROR] xxx.cn: caching certificate after obtaining it: decoding certificate metadata: unexpected end of JSON input
{"level":"info","ts":1591004115.3211713,"logger":"watcher","msg":"watching config file for changes","config_file":"/home/xxx/caddy/Caddyfile"}
[ERROR] xxx.cn: caching certificate after obtaining it: decoding certificate metadata: unexpected end of JSON input
[ERROR] xxx.cn: caching certificate after obtaining it: decoding certificate metadata: unexpected end of JSON input
[ERROR] xxx.cn: caching certificate after obtaining it: decoding certificate metadata: unexpected end of JSON input
[ERROR] xxx.cn: caching certificate after obtaining it: decoding certificate metadata: unexpected end of JSON input
[ERROR] xxx.cn: caching certificate after obtaining it: decoding certificate metadata: unexpected end of JSON input
[ERROR] xxx.cn: caching certificate after obtaining it: decoding certificate metadata: unexpected end of JSON input
[ERROR] xxx.cn: caching certificate after obtaining it: decoding certificate metadata: unexpected end of JSON input
我突然想起來服務(wù)器前幾天把默認(rèn)SHELL切換為Zsh，退出SSH會話后which pm2直接搜不到了，坑爹啊
注意啦，這里講一下，Zsh不加載 Bash默認(rèn)加載的文件，也就是↓
/etc/environment
/etc/profile
~/.bashrc
等等
Zsh默認(rèn)加載↓
/etc/zsh/zshenv
/etc/zsh/zshprofile
/etc/zsh/zshrc
/etc/zsh/zshlogin
/etc/zsh/zshlogout
~/.zhrc
~/.zshenc
等等...和上面差不多，都在用戶目錄，不一定全都存在，不存在的話你可以手動創(chuàng)建
切換到Zsh后，你可以復(fù)制一份原先Bash里的配置的環(huán)境變量到Zsh默認(rèn)加載的變量文件里（沒錯，我就是用這種方式），
另外一種方法就是在Zsh啟動加載的文件里寫上source /etc/profile,(注意了注意了，這個我沒有實(shí)際驗(yàn)證過有咩有效果)
回到Caddy v2,我在Zsh里echo $HOME 輸出/root也沒毛病啊，難道是我用supervisord的原因???，果然如此。
最終解決辦法
supervisord.conf
[program:caddy2]
command=/home/xxx/caddy/caddy run --config /home/xxx/caddy/Caddyfile --watch
autorestart=true
autostart=true
startsecs=5
;**注意了就是這行解決了decoding certificate metadata: unexpected end of JSON input**
environment=HOME="/root"
directory=/home/xxx/caddy/
stdout_logfile=/tmp/caddy2.log
stdout_logfile_maxbytes=1MB
stderr_logfile=/tmp/caddy2.err.log
stderr_logfile_maxbytes=1MB
相關(guān)問題:
Caddy2 SSL握手失敗,SSL握手錯誤?
Caddy2 http2_error怎么辦?
Caddy2無法加載證書啊?
Caddy2 TLS handshake error from xxx no certificate available?
Caddy2 SSL內(nèi)部錯誤？
Caddy v1和v2配置文件差異挺大的，改天寫篇文章來詳細(xì)說明一下，大家可以翻翻參照一下。
本文章原創(chuàng)。
