こんにちは。
長年Discourseを問題なく運用してきましたが、昨日アップデートを試みた際に、Discourseの遅延や問題が発生しました。アップデートしようとした際、アップデートの出力が何もありませんでした。まあ、心配ないだろうと思い、コンテナを停止して再起動し、念のため再構築することにしました。
ビルドが完了し、コンテナは正常に起動しましたが、何もデータが出てきません。ちなみにNginx Socket Fileを使用しています。
ログはありますが、私の判断では、コンテナは正常に動作しており、Nginxも稼働しています。
ディスク容量も十分で、メモリも空いています。Raspberry Pi 4 (8GB) を使用していますが、SDカードは使用しておらず、SATA (M2) SSDです。
他にデバッグする方法はありますか？
ソケットファイルは、http://localhost をcurlしたかったのですが、ソケットなのでできません。
以下を試してください
cd /var/discourse
./launcher enter app
curl -v localhost
これを試しましたが、ポート80で試行しているため接続が拒否されました。ソケットファイルなので、ポート80には何もありません。
The upstream?
That seems to be up.
* Trying 127.0.0.1:3000...
* Connected to localhost (127.0.0.1) port 3000 (#0)
> GET / HTTP/1.1
> Host: localhost:3000
> User-Agent: curl/7.74.0
> Accept: */*
>
* Mark bundle as not supporting multiuse
< HTTP/1.1 200 OK
< Date: Wed, 09 Nov 2022 19:34:50 GMT
< Connection: close
< X-Frame-Options: SAMEORIGIN
< X-XSS-Protection: 0
< X-Content-Type-Options: nosniff
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< Cache-Control: no-cache, no-store
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* Closing connection 0
についてどうですか？
curl --unix-socket /shared/nginx.http.sock
As you can see it seems to be even accessible from the Raspberry nondocker system as well.
Thanks Falco, I believe in this case my primary Web Server is going crazy…
marcell@raspberry:/var/discourse/shared/standalone$ sudo curl -GET --unix-socket ./nginx.http.sock http://localhost/io
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クールですね。少なくとも絞り込めたようでよかったです。
これはあなたの専門分野ではないことは承知していますが、Windowsでhostsファイルを変更するとDiscourseが読み込まれ、変更しないと読み込まれない理由について何かご存知ですか？
ドメインまたはDNSが応答していないように聞こえますが、外部からtracerouteとpingができるため、その可能性は低いと強く疑っています。
他のドメインもそれを指しており、正常に動作しています。
ルートドメインの brohosting.eu も正常に動作しています。だからこそ、奇妙な感覚があるのです。
解決しました。DNSの問題ではありませんでした 
DNSでなかった場合、何が原因だったのでしょうか？
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