I’ve been using fly.io since 2021. But I never realize I can deploy multiple environments (staging, production) easily as well. In this post I will share how can you add a staging environment in 5 minutes.
Assuming you already have a fly.toml in your project, something like this:
app = 'example-production'
primary_region = 'lax'
[build]
[env]
APP_ENV = 'production'
AWS_REGION = 'us-west-1'
[http_service]
internal_port = 3000
force_https = true
auto_stop_machines = true
auto_start_machines = true
min_machines_running = 0
processes = ['app']
[[vm]]
cpu_kind = 'shared'
cpus = 1
memory_mb = 1024
First let’s create a new config called fly.staging.toml:
cp fly.toml fly.staging.toml
Now let’s modify the fly.staging.toml to reflect what we want in this env:
app = "example-staging" # <--- Making sure you have a different name
primary_region = "lax"
[build]
[http_service]
internal_port = 3000
force_https = true
auto_stop_machines = true
auto_start_machines = true
min_machines_running = 0
processes = ["app"]
[[vm]]
cpu_kind = "shared"
cpus = 1
memory_mb = 1024
[env]
APP_ENV = "staging" # <--- Here we set the APP_ENV to staging
AWS_REGION = 'us-west-1'
We can’t use fly launch though with this new config. As fly launch only take fly.toml as of today. Instead we would need to create a new app for now.
# making sure the name here is the same with the above fly.staging.toml app name
fly apps create example-staging
Now with the app created. All we need to do is to deploy using this new config:
fly deploy --config ./fly.staging.toml
Yay! You just deployed a staging env using the same repository. You can run fly apps list to check the list of apps now.
With this we can have a different Github workflow to deploy to staging when pushes to staging branch:
.github/workflows/fly-staging.yml
name: Fly Deploy Staging
on:
push:
branches:
- staging
jobs:
deploy:
name: Deploy app
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v3
- uses: superfly/flyctl-actions/setup-flyctl@master
- run: flyctl deploy --remote-only --config ./fly.staging.toml
env:
FLY_API_TOKEN: ${{ secrets.FLY_API_TOKEN }}
Cheers and happy flying!