This content originally appeared on DEV Community and was authored by anthony-campolo
Fly is a platform for full stack applications and databases that need to run globally. Fly executes your code close to users and scales compute in cities where your app is busiest. You can run arbitrary Docker containers and host popular databases like Postgres.
1. Fly Setup
The code for this example can be found on my GitHub.
Install flyctl CLI
You can download the CLI on Mac, Linux, or Windows.
brew install superfly/tap/flyctl
Create account with auth signup
If you are a new user you can create an account with flyctl auth signup.
flyctl auth signup
After your browser opens you can either:
- Sign-up with your name, email and password.
- Sign-up with GitHub and check your email for link to set a password for verification.
You will also be prompted for credit card payment information, required for charges outside the free plan on Fly. See Pricing for more details.
Login to account with auth login
If you already have an account you can login with flyctl auth login.
flyctl auth login
After your browser opens, sign in with your username and password. If you signed up with Github, use the Sign-in with Github button to sign in.
2. Create Node server with Express
mkdir ajcwebdev-fly
cd ajcwebdev-fly
npm init -y
npm i express --save
touch index.js Dockerfile .dockerignore
Add server code to index.js
const express = require("express")
const app = express()
const port = process.env.PORT || 3000
app.get(
"/", (req, res) => {
greeting = "<h1>ajcwebdev-fly</h1>"
res.send(greeting)
}
)
app.listen(
port,
() => console.log(`Hello from port ${port}!`)
)
Run server
node index.js
Hello from port 3000!
Create Dockerfile
Add the following code to Dockerfile in the root directory of your project.
FROM node:14-alpine
WORKDIR /usr/src/app
COPY package*.json ./
RUN npm i
COPY . ./
EXPOSE 8080
CMD [ "node", "index.js" ]
Create .dockerignore
Add the following code to .dockerignore in the same directory as your Dockerfile.
node_modules
Dockerfile
.dockerignore
.git
.gitignore
npm-debug.log
3. Launch app on Fly with flyctl launch
Run flyctl launch in the directory with your source code to configure your app for deployment. This will create and configure a fly app by inspecting your source code and prompting you to deploy.
flyctl launch --name ajcwebdev-fly --region sjc
Creating app in /Users/ajcwebdev/ajcwebdev-fly
Scanning source code
Detected Dockerfile app
Automatically selected personal organization: Anthony Campolo
Created app ajcwebdev-fly in organization personal
Wrote config file fly.toml
Your app is ready. Deploy with `flyctl deploy`
? Would you like to deploy now? No
This creates a fly.toml file.
app = "ajcwebdev-fly"
kill_signal = "SIGINT"
kill_timeout = 5
[env]
[experimental]
allowed_public_ports = []
auto_rollback = true
[[services]]
http_checks = []
internal_port = 8080
protocol = "tcp"
script_checks = []
[services.concurrency]
hard_limit = 25
soft_limit = 20
type = "connections"
[[services.ports]]
handlers = ["http"]
port = 80
[[services.ports]]
handlers = ["tls", "http"]
port = 443
[[services.tcp_checks]]
grace_period = "1s"
interval = "15s"
restart_limit = 6
timeout = "2s"
Add the following PORT number under env.
[env]
PORT = 8080
Deploy application with flyctl deploy
flyctl deploy
Deploying ajcwebdev-fly
==> Validating app configuration
--> Validating app configuration done
Services
TCP 80/443 ⇢ 8080
Waiting for remote builder fly-builder-old-sun-2915... connecting ⡿ Creating WireGuard peer "interactive-Anthonys-MacBook-Pro-anthony-stepzen-com-783" in region "iad" for organization personal
Remote builder fly-builder-old-sun-2915 ready
==> Creating build context
--> Creating build context done
==> Building image with Docker
Sending build context to Docker daemon 6.034kB
Step 1/7 : FROM node:14-alpine
14-alpine: Pulling from library/node
ddad3d7c1e96: Pull complete
ff2036d54c0c: Pull complete
a5c80443dc0f: Pull complete
de936aee73e0: Pull complete
Digest: sha256:0c80f9449d2690eef49aad35eeb42ed9f9bbe2742cd4e9766a7be3a1aae2a310
Status: Downloaded newer image for node:14-alpine
---> d93b35a67404
Step 2/7 : WORKDIR /usr/src/app
---> Running in 81218d388a5e
---> 2ae716ba5525
Step 3/7 : COPY package*.json ./
---> ad19515d5299
Step 4/7 : RUN npm i
---> Running in 41102030018c
npm WARN read-shrinkwrap
This version of npm is compatible with lockfileVersion@1,
but package-lock.json was generated for lockfileVersion@2.
I'll try to do my best with it!
npm WARN ajcwebdev-fly@1.0.0 No description
npm WARN ajcwebdev-fly@1.0.0 No repository field.
added 50 packages from 37 contributors and audited 50 packages in 1.923s
found 0 vulnerabilities
---> c9f0004b1f7f
Step 5/7 : COPY . ./
---> 05927a4fb537
Step 6/7 : EXPOSE 8080
---> Running in 5a3069e1bc22
---> a3d733fda688
Step 7/7 : CMD [ "node", "index.js" ]
---> Running in 5e1c8548aed1
---> 3dff2152628b
Successfully built 3dff2152628b
Successfully tagged registry.fly.io/ajcwebdev-fly:deployment-1628129385
--> Building image done
==> Pushing image to fly
The push refers to repository [registry.fly.io/ajcwebdev-fly]
7c0c7d7d572f: Pushed
48105eba9405: Pushed
c0afc5a2e5be: Pushed
884b1412f359: Pushed
48257685945a: Pushed
e2685ea45316: Pushed
d1abbe7e086d: Pushed
9a5d14f9f550: Pushed
deployment-1628129385: digest: sha256:467d26b125b95ad397ff1258a0cf94d7cccd72e63cfd153f8632092164e0f9d7 size: 1992
--> Pushing image done
Image: registry.fly.io/ajcwebdev-fly:deployment-1628129385
Image size: 120 MB
==> Creating release
Release v0 created
You can detach the terminal anytime without stopping the deployment
Monitoring Deployment
1 desired, 1 placed, 1 healthy, 0 unhealthy
[health checks: 1 total, 1 passing]
--> v0 deployed successfully
Show the application's current status with flyctl status
Status includes application details, tasks, most recent deployment details and in which regions it is currently allocated.
flyctl status
App
Name = ajcwebdev-fly
Owner = personal
Version = 0
Status = running
Hostname = ajcwebdev-fly.fly.dev
Deployment Status
ID = d94d886a-f338-28cf-4078-1ed838eea224
Version = v0
Status = successful
Description = Deployment completed successfully
Instances = 1 desired, 1 placed, 1 healthy, 0 unhealthy
Instances
ID VERSION REGION DESIRED STATUS HEALTH CHECKS RESTARTS CREATED
40591407 0 sjc run running 1 total, 1 passing 0 37s ago
Open browser to current deployed application with flyctl open
flyctl open
Opening http://ajcwebdev-fly.fly.dev/
Visit ajcwebdev-fly.fly.dev to see the site.
This content originally appeared on DEV Community and was authored by anthony-campolo
anthony-campolo | Sciencx (2021-08-05T02:37:30+00:00) a first look at fly. Retrieved from https://www.scien.cx/2021/08/05/a-first-look-at-fly/
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