Pantrypoints
How to Deploy Phoenix 1.6.2 to Gigalixir and Heroku
December 11, 2021 2 minutes • 318 words
Heroku
1 – On Heroku Dashboard, create an app named socrates
2 – On Heroku Dashboard, Go to Settings -> Buildpacks then add
hashnuke/elixir
and
https://github.com/gjaldon/heroku-buildpack-phoenix-static.git
3 – In your app’s root directory, create the git remote
heroku git:remote -a socrates
4 – In your app’s root directory, create the config files
$ echo 'elixir_version=1.12.2' > elixir_buildpack.config
$ echo 'erlang_version=24.0.3' >> elixir_buildpack.config
$ echo 'node_version=10.20.1' > phoenix_static_buildpack.config
5 – In your assets/package.json (create the file if you don’t have it otherwise it won’t serve the JS and CSS)
{
...
"scripts": {
"deploy": "cd .. && mix assets.deploy && rm -f _build/esbuild"
}
...
}
6 – In your config/prod.exs, replace the url: line with
url: [scheme: "https", host: "socrates.herokuapp.com", port: 443],
force_ssl: [rewrite_on: [:x_forwarded_proto]],
7 – In your config/runtime.xs uncomment ssl: true
ssl: true
8 – In lib/socrates_web/endpoint.ex add the following in the socket line
websocket: [timeout: 45_000]
9 – Generate secret key
mix phx.gen.secret
10 – Set the resulting key onto Heroku
heroku config:set SECRET_KEY_BASE="longsecretkey"
11 – Commit to git and push to Heroku
git push heroku master
12 – Create database after the app has been deployed
heroku addons:create heroku-postgresql:hobby-dev
heroku config:set POOL_SIZE=10
heroku run "POOL_SIZE=2 mix ecto.migrate"
heroku run "POOL_SIZE=2 mix run priv/repo/seeds.exs"
Gigalixir
1 – Create an app through the terminal
gigalixir create -n socrates
2 – Create the config files
$ echo 'elixir_version=1.10.3' > elixir_buildpack.config
$ echo 'erlang_version=22.3' >> elixir_buildpack.config
$ echo 'node_version=12.16.3' > phoenix_static_buildpack.config
3 – In your assets/package.json
{
...
"scripts": {
"deploy": "cd .. && mix assets.deploy && rm -f _build/esbuild"
}
...
}
4 – Deploy
git push gigalixir
5 – Create, migrate, and seed the database
gigalixir pg:create --free
gigalixir run mix ecto.migrate
gigalixir run mix run priv/repo/seeds.exs
6 – To reset the database, go to the Gigilixir dashboard, scale down the app, delete the database, then scale the app back to 1, then do step 5