Issue
I'm learning how to build Docker images from Dockerfiles. Here's my current Dockerfile:
FROM ubuntu:14.04
RUN apt-get update && apt-get install -y nginx
CMD ["/usr/sbin/nginx"]
I can build this image, run it, and connect to the container with docker run -t -i -p 80:80 mytestimage /bin/bash/
. Then, I can run nginx
and connect to the "hello world" page from a web browser.
But I can't get Nginx to run as a daemon (without manually starting it from the container's shell). I've tried docker run -d -p 80:80 mytestimage
, but docker ps
is empty. What am I doing wrong? I've been looking at the official Nginx Dockerfile, but I'm not sure which parts I need to add to my own Dockerfile.
Solution
you need to add following in Dockerfile
CMD ["nginx", "-g", "daemon off;"]
and the docker container can be run using command : docker run -d -p 8980:80 test-nginx
above port 8980 just an example, this is configured from Dockerfile
Answered By - spectre007 Answer Checked By - Terry (WPSolving Volunteer)