Pipeline – Connection refused to port 80 when using custom docker image

Hannu Pölönen_8m679i

Hi all,
Here's my problem. I'm using custom docker image based on "php:7.3-apache" in Pipelines. When the pipeline runs I'm getting "Connection refused" when trying to curl / connect to port 80. This does not happen when I use the original "php:7.3-apache" image. What is weird is that the custom image works locally just fine and I'm able connect to port 80. The issue seems to be present only in Pipelines.

Dockerfile

FROM php:7.3-apache
RUN apt-get update && apt-get install -y netcat # Only for debugging purposes
RUN docker-php-ext-install pdo pdo_mysql
RUN curl -sS https://getcomposer.org/installer | php -- --install-dir=/usr/local/bin --filename=composer

Pipeline (snippet):

...
- nc -zv 127.0.0.1 80
- echo "TEST" > /var/www/html/test.html
- curl -v http://127.0.0.1/test.html
...

Response to the above

 nc: connect to localhost (127.0.0.1) port 80 (tcp) failed: Connection refused

Running the image locally

root@b4325d0e00d1:/var/www/html# nc -zv 127.0.0.1 80
Connection to 127.0.0.1 80 port [tcp/*] succeeded!

Any ideas what is the issue and how to get around this?

Halyna Berezovska

@Hannu Pölönen I suppose 80 port can be busy in pipelines, 80 is pretty often used port, for http. Try to expose another port, for example 8000 or 9000 and use it to connect.