I had built nginx with nginx-rtmp-module about serval years ago.
Chrome decided to deprecated flash in that year, than the usual video stream and player can’t work anymore. (I don’t sure rtsp/rtmp or whatever, its a long time.)
And recently I want build a docker image for the live server.
This is the foreword.

Build nginx with nginx-rtmp-module in server

This isn’t hard, follow the documentation, step and step, and succeed.

Build image by tiangolo

I search to rtmp in dockerhub, this one’s repo had Dockerfile.
So I followed his file at first.
And the image size is 851.17MB.
But his image is about just more than 300MB, I think that’s ridiculous.
And I found his Dockerfile last updated in 2022/9/25 .
I have to say, good job.

Manually build the docker image

Then I check the nginx-rtmp-module and nginx for some help.
Then I found arut/wiki/Dockerfile and docker-nginx/modules will be useful.
However, they can’t be built in my computer, cause of the GFW.

Then is how to manually build the image.

  1. Choose the base image

    Obviously, I choose alpine.

    docker pull alpine:3.20.2

  2. Create the container and into shell

    docker run -it --name tempcontainer alpine:3.20.2 /bin/sh

  3. Execute the command

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    apk add --update build-base git bash gcc make g++ zlib-dev linux-headers pcre-dev openssl-dev
    git clone https://github.com/arut/nginx-rtmp-module.git
    git clone https://github.com/nginx/nginx.git
    cd nginx
    ./auto/configure \
        --sbin-path=/usr/local/sbin/nginx \
        --conf-path=/etc/nginx/nginx.conf \
        --error-log-path=/var/log/nginx/error.log \
        --pid-path=/var/run/nginx/nginx.pid \
        --lock-path=/var/lock/nginx/nginx.lock \
        --http-log-path=/var/log/nginx/access.log \
        --http-client-body-temp-path=/tmp/nginx-client-body \
        --with-http_ssl_module \
        --with-threads \
        --with-ipv6 \ 
        --add-module=../nginx-rtmp-module 
    make && make install

  4. Copy your conf to container

    From another shell, not in container

    docker cp nginx.conf tempcontainer:/etc/nginx/nginx.conf

  5. Commit the container as image

    docker commit tempcontainer my-last-image

This is kind of more complex then docker build ... .
But its completely controllable.
Like I may can’t clone the repo, then I can clone more times, until I get that repo.
Also the apk pkg, I can wait like 5 minutes, then I will get that at last.

And now my image is 149.28MB , even within a ffmpeg .

If interested, just docker pull guaderxx/nginx-rtmp to get that.