81 lines
2.1 KiB
Markdown
81 lines
2.1 KiB
Markdown
# nginx simple semi-automated reverse proxy
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Simply mount your volume or a directory as `/etc/nginx/conf.d` to the container,
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it will automatically detect the differences in there and load-up the new configuration!
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To build and run the image:
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```
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docker build --ulimit nofile=1024:1024 -t andrey01/nginx .
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docker run --rm -ti --name nginx -p 80:80 -p 443:443 andrey01/nginx
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```
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> Smaller nofile `ulimit -n` is needed when running the grsecurity patched kernel, otherwise things may go terribly slow.
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> You may consider using `--default-ulimit "nofile=1024:2048"` argument to a docker daemon.
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**docker-compose.yml** file example
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```
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version '2'
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networks:
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backend: {}
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frontend: {}
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services:
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nginx:
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image: andrey01/nginx
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networks:
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- backend
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- frontend
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volumes:
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- /srv/letsencrypt:/etc/letsencrypt:ro
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- /srv/nginx:/etc/nginx/conf.d:ro
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ports:
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- 80:80
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- 443:443
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restart: always
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```
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Then you can add some configuration to the `/home/docker/configs/nginx` directory,
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for example you may add the following config:
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**webmail.conf** file example
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```
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server {
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listen 80;
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server_name webmail.mydomain.com;
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return 301 https://$host$request_uri;
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}
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server {
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listen 443 ssl http2;
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server_name webmail.mydomain.com;
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ssl on;
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ssl_certificate /etc/letsencrypt/live/webmail.mydomain.com/fullchain.pem;
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ssl_certificate_key /etc/letsencrypt/live/webmail.mydomain.com/privkey.pem;
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# enable HSTS (HTTP Strict Transport Security) to avoid SSL stripping
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add_header Strict-Transport-Security "max-age=15768000; includeSubdomains" always;
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# Built-in Docker's DNS server
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resolver 127.0.0.11:53 ipv6=off valid=10s;
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set $upstream_endpoint http://webmail:8080;
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location / {
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client_max_body_size 100M;
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proxy_pass $upstream_endpoint;
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proxy_redirect off;
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proxy_buffering off;
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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-Proto $scheme;
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proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
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}
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}
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```
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You can have your `webmail` service running in the `backend` network,
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of which the nginx will take care of and pass it to the frontend.
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