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nginx.conf is now a template the nginx image renders into conf.d at container start. bin/entrypoint.sh sets PORT to 8080 when unset or empty, and stops with an error before starting anything when PORT is not digits only: nginx would take a value such as localhost or unix:/tmp/x.sock as an address and start anyway. NGINX_ENVSUBST_FILTER limits the rendering to PORT, so $uri, $host and every other nginx variable pass through unchanged. server_tokens off drops the version from the Server header and error pages. script/frontend-viewport-test renders the template the same way. EXPOSE still documents 8080; the backend stays on 127.0.0.1:8081. Model: opus-5-5
54 lines
1.6 KiB
Nginx Configuration File
54 lines
1.6 KiB
Nginx Configuration File
# A template: the nginx image renders it into conf.d at container start,
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# filling in PORT and nothing else. bin/entrypoint.sh sets PORT and that
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# limit.
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server {
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listen ${PORT};
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server_name _;
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# Keep the nginx version out of the Server header and error pages.
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server_tokens off;
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root /usr/share/nginx/html;
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index index.html;
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# Trust RFC1918 reverse proxies for X-Forwarded-For
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set_real_ip_from 10.0.0.0/8;
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set_real_ip_from 172.16.0.0/12;
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set_real_ip_from 192.168.0.0/16;
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real_ip_header X-Forwarded-For;
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real_ip_recursive on;
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# Access log to stdout (Docker best practice)
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access_log /dev/stdout combined;
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error_log /dev/stderr warn;
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location / {
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try_files $uri $uri/ /index.html;
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}
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# Cache static assets aggressively
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location /assets/ {
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expires 1y;
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add_header Cache-Control "public, immutable";
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}
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# netwatch-server, the Go backend, runs in the same container and
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# listens on loopback only: bin/entrypoint.sh starts it on
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# 127.0.0.1:8081. These headers go with every request passed to it.
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# X-Forwarded-For carries only the client address, as resolved by
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# the real IP settings above, and not the chain the request came
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# with: the backend takes the first entry, which a client can write.
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proxy_set_header Host $host;
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proxy_set_header X-Real-IP $remote_addr;
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proxy_set_header X-Forwarded-For $remote_addr;
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proxy_set_header X-Forwarded-Proto $scheme;
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location /api/ {
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proxy_pass http://127.0.0.1:8081;
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}
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location = /.well-known/healthcheck {
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proxy_pass http://127.0.0.1:8081;
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}
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}
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