I'm trying make my application dockerize for that I've been following official openresty dockerfile. Os in my system is Ubuntu 16.04 64 bit.

I have already pull that image using this cmd.

docker pull openresty/openresty:1.11.2.3-xenial

Now I want to use this image and want make simple hello world application. For that I have created my work directory, create one custom dockerfile and build my custom image with that. And finaly I run that image. Below is my dockerfile content.

FROM openresty/openresty:1.11.2.3-xenial

EXPOSE 8080
CMD nginx -p `pwd` -c nginx.conf

nginx.conf

worker_processes  1;
error_log stderr notice;
events {
    worker_connections 1024;
}
http {
    include /usr/local/openresty/nginx/conf/mime.types;
    server {
        listen 8888;
        location / {
            default_type text/html;
            content_by_lua_file "app.lua";
        }
    }
}

app.lua

ngx.say('Hello World!')
ngx.exit(200)

Build image

docker build -t user/openresty .

Start container

docker run rahul/openresty

When I try to start container, it gives me an error like nginx: invalid option: "/bin/sh"

I have no idea that I'm going on right or wrong direction.

Update:

docker run -it -p 8888:80 -v /home/software/docker/openresty:/usr/local/openresty/nginx/html:ro openresty/openresty:1.11.2.3-xenial

I just used this CLI and it's start showing index.html that I have created. Again I tried to link my custom nginx.conf using below CLI but it's not working.

docker run -it -p 8888:8888 -v /home/software/docker/openresty:/usr/local/openresty/nginx/html:ro -v /home/software/docker/openresty/nginx.conf:/usr/local/openresty/nginx/conf/nginx.conf:ro openresty/openresty:1.11.2.3-xenial

docker run -it -p 8888:8888 -v $(pwd):/app openresty/openresty:1.11.2.3-xenial -p /app -c nginx.conf

With below command it starts working but can anyone please explain it?

docker run -it -p 8888:8888 -v $(pwd):/app openresty/openresty:1.11.2.3-xenial -p /app -c nginx.conf