DOCKERFILE - PHP WEBSITE

Question

I've pulled the devopsedu/webapp image from docker hub and create an image of out it. 
Now I want to add the PHP website to it and run them in a container. 

I made a dockerfile which is pulling the image and copying PHP code to the machine, but I saw that it's a wrong method, because the dockerfile should contain : 

FROM devopsedu/webapp 
ADD proj /var/www/html
RUN rm /var/www/html/index.html
CMD apachectl -D FOREGROUND

which is not working at all, because I'm getting an error:

ADD failed: stat /var/lib/docker/tmp/docker-builder021352947/website: no such file or directory

My question is: why the dockerfile is looking so weird? From where it pulls the phpcode:https://github.com/edureka-devops/projCert

Comments

Do you by any chance have a .dockerignore file? This file might be ignoring the tmp folder.

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no i don't have it

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Can you show your directory structure?

Answer 1

Here's the Reason why your dockerfile is structured that way.

You have to create a dockerfile and the base image should be devopsedu/webapp. And you have to write dockerfile in such a way that it should run the PHP application. 

The below sample docker file which uses devopssedu/webapp as the base image and then it runs the PHP application. 

FROM devopsedu/webapp 
ADD proj /var/www/html
RUN rm /var/www/html/index.html
CMD apachectl -D FOREGROUND

/var/www/html is the directory where your website files are stored. These files include the codes, images etc used for the website.

The application code is moved or copied inside the container and a docker image is build. An image is created. 

Now when you run this image, the php application will get executed.

Comments

ok now i get this that means the "proj" word in my Dockerfile is the path to the php code etc which is move the /var/www/html folder right ?

Anyway i'm stil getting the same error

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Try using relative paths. Recently even I have been facing the same error while using the absolute path.

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Hi

Can you help me understand what is relative path here? I am getting the same error

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Hi Vennela,

Dockerfile will find the path from its location. This means you have to transfer all your files to that folder where your Dockerfile present.