install elixir otp & phoenix on linux mint

This is a guide to install erlang & OTP as well as elixir on Linux Mint at a sufficiently high enough versions to be able to use phoenix.

Uninstalling the current Erlang and Elixir: #

sudo apt-get remove --purge erlang elixir
sudo apt-get autoremove

This will uninstall Erlang and Elixir and also remove any additional packages that were installed with them but are no longer used.

Install Erlang Solutions' OTP 24: #

First, you'll want to add the Erlang Solutions repository and register its public key:

wget https://packages.erlang-solutions.com/erlang-solutions_2.0_all.deb
sudo dpkg -i erlang-solutions_2.0_all.deb

Now, update your local package database:

sudo apt-get update

Install the Erlang/OTP package: #

sudo apt-get install esl-erlang

Verify that the right version is installed:

erl -eval 'erlang:display(erlang:system_info(otp_release)), halt().'  -noshell

Installing Elixir from source: #

First, you'll need git and some building tools if you don't already have them:

sudo apt-get install git make

Now, clone the Elixir repo and build it:

git clone https://github.com/elixir-lang/elixir.git
cd elixir
make
sudo make install

Add the Elixir bin directory to your PATH. #

Edit your shell profile (like .bashrc or .zshrc) and add:

export PATH="$PATH:/path/to/elixir/bin"

Verify Elixir installation: #

elixir -v

install inotify-tools #

sudo apt-get install inotify-tools

install postgres #

sudo apt-get install postgresql postgresql-contrib

Start the PostgreSQL service:

sudo service postgresql start

Reset the PostgreSQL postgres user password: #

Access the PostgreSQL command line interface:

sudo -u postgres psql

Set a new password for the postgres user: #

ALTER USER postgres WITH PASSWORD 'newpassword';

Replace 'newpassword' with your desired password. Then, exit the PostgreSQL command line:

\q

Remember to configure your database within phoenix applications eg: config/dev.exs

install phoenix #

mix local.hex
mix archive.install hex phx_new

If you don't plan to use databases in your application, you can pass the --no-ecto flag.

start the phoenix server #

mix phx.server