nginx 反向代理，其中 plantuml 实例位于子域内的子文件夹后面，未知错误（plantuml 问题？）

Question 1

解决方案：

这个问题很“愚蠢”，因为它很隐蔽（所以我们要吸取的教训是：永远不要“仅仅”包括样板）。

所包含的标准proxy.conf（它是我尝试过的容器之一的一部分nginx）包含以下内容（很多并且可能包含不需要的东西？）：

## Version 2020/10/04 - Changelog: https://github.com/linuxserver/docker-swag/commits/master/root/defaults/proxy.conf

# Timeout if the real server is dead
proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;

# Proxy Connection Settings
proxy_buffers 32 4k;
proxy_connect_timeout 240;
proxy_headers_hash_bucket_size 128;
proxy_headers_hash_max_size 1024;
proxy_http_version 1.1;
proxy_read_timeout 240;
# proxy_redirect  http://  $scheme://;
proxy_redirect off;
proxy_send_timeout 240;

# Proxy Cache and Cookie Settings
proxy_cache_bypass $cookie_session;
#proxy_cookie_path / "/; Secure"; # enable at your own risk, may break certain apps
proxy_no_cache $cookie_session;

# Proxy Header Settings
proxy_set_header Early-Data $ssl_early_data;
proxy_set_header Host $host;
proxy_set_header Proxy "";
proxy_set_header Upgrade $connection_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Proto https;
proxy_set_header X-Forwarded-Ssl on;
proxy_set_header X-Real-IP $remote_addr;

只需删除include此文件并结合一条干净的location /plantuml/ { ... }线路即可解决问题。

罪魁祸首是那条线：

proxy_set_header Upgrade $connection_upgrade;

没有它，一切都正常。

Answer

解决方案：

这个问题很“愚蠢”，因为它很隐蔽（所以我们要吸取的教训是：永远不要“仅仅”包括样板）。

所包含的标准proxy.conf（它是我尝试过的容器之一的一部分nginx）包含以下内容（很多并且可能包含不需要的东西？）：

## Version 2020/10/04 - Changelog: https://github.com/linuxserver/docker-swag/commits/master/root/defaults/proxy.conf

# Timeout if the real server is dead
proxy_next_upstream error timeout invalid_header http_500 http_502 http_503;

# Proxy Connection Settings
proxy_buffers 32 4k;
proxy_connect_timeout 240;
proxy_headers_hash_bucket_size 128;
proxy_headers_hash_max_size 1024;
proxy_http_version 1.1;
proxy_read_timeout 240;
# proxy_redirect  http://  $scheme://;
proxy_redirect off;
proxy_send_timeout 240;

# Proxy Cache and Cookie Settings
proxy_cache_bypass $cookie_session;
#proxy_cookie_path / "/; Secure"; # enable at your own risk, may break certain apps
proxy_no_cache $cookie_session;

# Proxy Header Settings
proxy_set_header Early-Data $ssl_early_data;
proxy_set_header Host $host;
proxy_set_header Proxy "";
proxy_set_header Upgrade $connection_upgrade;
proxy_set_header Connection $connection_upgrade;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Proto https;
proxy_set_header X-Forwarded-Ssl on;
proxy_set_header X-Real-IP $remote_addr;

只需删除include此文件并结合一条干净的location /plantuml/ { ... }线路即可解决问题。

罪魁祸首是那条线：

proxy_set_header Upgrade $connection_upgrade;

没有它，一切都正常。

Question 2

      location /plantuml/ {
          include /etc/nginx/proxy.conf;
          resolver myrouter valid=30s;
          set $upstream_app myserver;
          set $upstream_port 7080;
          set $upstream_proto http;
          proxy_http_version 1.1;
          proxy_pass $upstream_proto://$upstream_app:$upstream_port/;
      }

Answer

      location /plantuml/ {
          include /etc/nginx/proxy.conf;
          resolver myrouter valid=30s;
          set $upstream_app myserver;
          set $upstream_port 7080;
          set $upstream_proto http;
          proxy_http_version 1.1;
          proxy_pass $upstream_proto://$upstream_app:$upstream_port/;
      }

nginx 反向代理，其中 plantuml 实例位于子域内的子文件夹后面，未知错误（plantuml 问题？）

答案1

解决方案：

答案2

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