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Running Fostgres

The simplest way to run Fostgres is through Docker, although it can also be built from source.

There is a docker image available, fost/all which can be run. You will need to make Postgres available to it.

The docker run command

Assuming you're running Postgres on your host machine and it has a unix domain socket available in /var/run/postgres (the default on Ubuntu) you can run the image using:

sudo docker run -it \
    -v/var/run/postgresql:/var/run/postgresql \
    -v$(pwd):/src \
    -w/src \
    -u$(id -u):$(id -g) \
    -ePGUSER=$USER \
    fost/all \
    fostgres-test todo schema1.sql tests1.fg

This breaks down as:

  • -it Run the container interactively
  • -v/var/run/postgresql:/var/run/postgresql Share the host Postgresql unix domain socket to the container.
  • -v$(pwd):/src Make the current directory available inside the container in the /src folder.
  • -w/src Use the /src folder as the current directory in the container.
  • -u$(id -u):$(id -g) Use the currently logged in user and group IDs inside the container.
  • -ePGUSER=$USER Use the current username as the Postgresql role name when connecting.
  • fost/all The container name
  • fostgres-test todo schema1.sql tests1.fg The command to run in the container.

Testing the image

Make sure we have the latest version of the image:

sudo docker pull fost/all

Clone the Fostgres project files:

git clone git@github.com:KayEss/fostgres.git

There are a number of examples that can be used, this is one of the tests:

cd fostgres/Examples/films

And finally run the image:

sudo docker run -it \
    -v/var/run/postgresql:/var/run/postgresql \
    -v$(pwd):/src \
    -u$(id -u):$(id -g) \
    -w/src \
    -ePGUSER=$USER \
    fost/all:latest \
    fostgres-test fostgres-test-films \
        libfostgres.so films.fg films.tables.sql view.film-slug.json

It's probably most convenient to set up an alias for this:

alias fostgres-test="sudo docker run -it
    -v/var/run/postgresql:/var/run/postgresql
    -v$(pwd):/src
    -u$(id -u):$(id -g)
    -w/src
    -ePGUSER=$USER
    fost/all:latest
    fostgres-test"

Troubleshooting

TODO