Docker: Localhost didn't send any data

Question

This is my Dockerfile contents:-

FROM php:7.0-apache
COPY src/ /var/www/html/public
VOLUME src/ /var/www/html/public
EXPOSE 800

Then I run this command.

docker run -p 80:800 final

So I tried to access the localhost, but it returns 'ERR_EMPTY_RESPONSE'.

Earlier it was giving 403 error.

OS - Mac

[Edit] Adding more detail

Solution

The php:7.0-apache image listens by default on port 80. The EXPOSE you are using in the Dockerfile does not change that.

Normally, you have no reason to try an change the default listening port of the container, hence it has it's own IP address and you should never run into a port conflict problem.

The port election might be an issue on the host and in this regard you may chose to publish on any port that is not in use.

If you simply swap 80 and 800 in your docker run command, you shall be able to access the web-app at localhost:800

The following command will create a DNAT rule from your host machine port <src> to the container port 80, making it possible to visit the web-app at localhost:<src>

docker run -p <src>:80 final 

---

Edit answering forbidden problem update:

The php:7.0-apache image will look for an index.* under /var/www/html/. Your Dockerfile is copying the source into /var/www/html/public.

Comments

[Neo Anderson]

Can you tell us what web-server are you trying to run(adding the FROM line missing from your Dockerfile should be enough to reproduce).

[Utkarsh Agrawal]

Hi @NeoAnderson, Please check, it was hidden earlier.

[Gromski]

Apache probably doesn't listen on port 800…!?

[Utkarsh Agrawal]

@deceze I have tried with port 80 initially, then I run 80:80 at the terminal, but 403 error was getting.

[Gromski]

As the error says, you don't appear to have any index.* file in your directory, so Apache doesn't know what to serve you for localhost:8000/.

[Utkarsh Agrawal]

@deceze Oh, now I got it. I give a search on autoindex:error and I found exactly what you caught. Thanks for informing. :)

[Utkarsh Agrawal]

Yes, I did the same, I expose the port at default 80, then I run the command like you said in last, but now I am getting 403 error. I will add the screenshot above.

[Utkarsh Agrawal]

Hi Neo, Just added, please check. The first screenshot was of my terminal,

[Neo Anderson]

Ok, I'm trying to reproduce, but I don't have a Mac :)

[Utkarsh Agrawal]

Neo, Problem is solved, as suggest by @deceze. Thanks a lot for giving the above info. :)

[Neo Anderson]

Yes, got to the same answer: make sure you are copying the index under /var/www/html/

[Utkarsh Agrawal]

Yes, now I understood. :)

[Neo Anderson]

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