Elixir

Prerequisites

• Set memory to at least 1MB during app creation or later using:

$ tapit create app myAppName memory=1
 # or
$ tapit set process name=default memory=1

• Ensure you use the Elixir buildpack by editing your tapit.toml file in the app dir:

# tapit.toml
app = "myAppName"

buildpacks = [
  "https://tapitalee.s3.us-west-2.amazonaws.com/buildpacks/elixir/elixir-0.5.tgz"
]

[environment_variables]
ELIXIR_VERSION = "1.17.2"

Optional configuration

• Specify a web process with a Procfile

Add a database

Options for AWS-managed database add-ons include RDS MySQL and Postgres.

By default the connection and authnetication details are sent to the app via the environment variable DATABASE_URL, which Elixir handles automatically by default.

Set environment variables

$ tapit set variable SECRET_KEY_BASE `mix phx.gen.secret` secret=yes

Migrate database

To run commands interactively at a shell prompt:

$ tapit run bash

To create a background task (without console interactions, ideal for scripting) for DB migration:

$ tapit create task 'mix ecto.migrate'