Deploying to Fly.io in Remix - Step-by-Step Execution

Concept Flow - Deploying to Fly.io

Prepare Remix app

↓

Install Fly CLI

↓

Run flyctl launch

↓

Configure fly.toml

↓

Build Remix app

↓

Deploy with flyctl deploy

↓

App live on Fly.io

↓

Monitor and update as needed

This flow shows the steps to deploy a Remix app to Fly.io, from setup to live deployment.

Execution Sample

Remix

npm install -g flyctl
flyctl launch
npm run build
flyctl deploy

These commands install Fly CLI, create a Fly app, build the Remix app, and deploy it.

Execution Table

Step	Command	Action	Result
1	npm install -g flyctl	Install Fly CLI globally	flyctl command available
2	flyctl launch	Create and configure Fly app	fly.toml created, app registered
3	npm run build	Build Remix app for production	Build folder ready
4	flyctl deploy	Upload and deploy app to Fly.io	App deployed and live
5	-	Check app status	App running on Fly.io URL
6	-	Exit	Deployment complete

💡 Deployment completes after app is live and running on Fly.io

Variable Tracker

Variable	Start	After Step 1	After Step 2	After Step 3	After Step 4	Final
flyctl	not installed	installed	installed	installed	installed	installed
fly.toml	none	none	created	created	created	created
build folder	none	none	none	ready	ready	ready
app status	not deployed	not deployed	not deployed	not deployed	deployed	running

Key Moments - 3 Insights

Why do we run 'flyctl launch' before building the app?

Because 'flyctl launch' sets up the Fly.io app and configuration file needed before deployment, as shown in execution_table step 2.

What happens if we skip 'npm run build' before 'flyctl deploy'?

The app won't have production files ready, so deployment may fail or serve old code, as build folder is not prepared (see variable_tracker build folder state).

How do we know the app is live after deployment?

The app status changes to 'running' after 'flyctl deploy' in execution_table step 4 and 5, confirming the app is live on Fly.io.

Visual Quiz - 3 Questions

Look at the execution_table, what is the result after running 'flyctl launch'?

A Build folder ready

B App deployed and live

C fly.toml created, app registered

D flyctl command available

💡 Hint

Check execution_table row 2 under Result column

At which step does the app status change to 'deployed'?

A Step 4

B Step 3

C Step 2

D Step 5

💡 Hint

Look at variable_tracker row for app status after Step 4

If we skip 'npm run build', what variable in variable_tracker stays unchanged?

A flyctl

B build folder

C fly.toml

D app status

💡 Hint

Check build folder state after Step 3 in variable_tracker

Concept Snapshot

Deploying Remix to Fly.io:
1. Install Fly CLI with 'npm install -g flyctl'
2. Run 'flyctl launch' to create app and config
3. Build Remix app using 'npm run build'
4. Deploy with 'flyctl deploy'
5. App runs live on Fly.io URL
Always build before deploy for production files.

Full Transcript

To deploy a Remix app to Fly.io, first install the Fly CLI tool globally using npm. Then run 'flyctl launch' to create and configure your Fly.io app, which generates a fly.toml file. Next, build your Remix app with 'npm run build' to prepare production files. Finally, deploy your app using 'flyctl deploy'. After deployment, your app will be live and running on a Fly.io URL. Monitoring the app status confirms successful deployment. Skipping build can cause deployment issues because production files are missing.