notes

Nginx in Docker

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Simple container

Make nginx-content folder and place index.html and page.html files there.
Run container.

docker run \
    --name <name> \
    --restart always \
    -d \
    -p 8081:80 \
    -v /path/to/nginx-content:/usr/share/nginx/html:ro \
    nginx:<tag>

Access pages.

curl http://localhost:8081/
curl http://localhost:8081/index.html
curl http://localhost:8081/page.html

Reload config.

docker exec <name> nginx -s reload
docker exec <name> /bin/sh -c "nginx -s reload"

Proxy

Update /etc/nginx/conf.d/default.conf file - add location section.

server {
    listen       80;
    # ...
    location /test/ {
        proxy_pass http://172.17.0.1:8081/;
    }
    location /test {
        return 302 $scheme://$http_host$request_uri/;
    }
    # ...
}

File can be copied from container.

docker cp <name>:/etc/nginx/conf.d/default.conf /path/to/default.conf

Run container that proxies requests to another server.

docker run \
    --name <name> \
    --restart always \
    -d \
    -p 8091:80 \
    -v /path/to/default.conf:/etc/nginx/conf.d/default.conf:ro \
    nginx:<tag>

Access pages.

curl http://localhost:8091/test/
curl http://localhost:8091/test/index.html
curl http://localhost:8091/test/page.html

Upsteams

Run two servers - :8081 and :8082.
Update /etc/nginx/conf.d/default.conf file - add upsteam section.

upstream test-upstream {
    server 172.17.0.1:8081 weight=4;
    server 172.17.0.1:8082 weight=3;
}

server {
    listen       80;
    # ...
    location /test/ {
        proxy_pass http://test-upstream/;
    }

    location /test {
        return 302 $scheme://$http_host$request_uri/;
    }
    # ...
}

Run container.
Access pages.

curl http://localhost:8091/test/
curl http://localhost:8091/test/index.html
curl http://localhost:8091/test/page.html

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