Running lumen inside a docker container

You basically have two choices. Either you use php -s, or you set up a webserver. There is no "production webserver" built into lumen. That's what the apaches/nginxes of this world are for.

You could just use an apache+php image. nginx is a bit harder to set up.

i see, it's just my internal API, no need for nginx/apache. What the difference between php artisan serve and php -S - it is basically the same builtin webserver?

artisan serve just starts up a php -S, so yes, they are the same.

@corbosman

Do you know, what do i need to install in order to make postgres connection work in a container, i'm using php:7.3-fpm-alpine image, here's my full Dockerfile:

FROM php:7.3-fpm-alpine

RUN apk add --update \
    && docker-php-ext-install pgsql pdo_pgsql

RUN curl -sS https://getcomposer.org/installer | php -- \
  --install-dir=/usr/bin --filename=composer

COPY . /app

RUN cd "/app" && cp .env.production .env && composer install

WORKDIR /app

EXPOSE 80

CMD php -S 0.0.0.0:80 -t public

But it doesn't connect to my pgsql instance, probably i do miss something else.

It depends on where your postgres server is. If it's somewhere outside of docker it should just work by referencing it as a hostname or ip number.

If it's also a docker container, there are 2 possibilities.

One, you want it to be part of a "grouping" where your php container and postgres container form a set together. If that's the case, use docker-compose. Then you can just use the name of your postgres container as the hostname. It does mean you need to set up a docker-compose config file. Once you get the hang of it this is a very powerful setup.

Or two, if you have a dedicated docker postgres container, you need to allow the 2 containers to see eachother. You do that by creating a docker network and configuring that network on both containers.