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Serhii Korol
Serhii Korol

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Easy way to publish your project.

#csharp #dotnet #cloud #flyio

Hi folks. Today, I want to touch on a topic about the cloud alternative. All of us talk about code, but too few words are said about how to share this code. Most people have heard a lot about Azure, AWS, GCP, and even DigitalOcean. For newbies, it can be too complicated and need additional knowledge. And you don't always need all these multiple features. You just need to deploy your small application and scale it if needed.
I want to tell you how easy it is to deploy your application without any special knowledge about infrastructure. I'll detail to tell you about it step by step.

Step1

Let's generate a simple MVC project.

dotnet new mvc -n FlyIoSample
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Go to the folder with the project.

cd FlyIoSample
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Let's check this out to ensure that it works fine.

localhost

Step2

We must download and install CLI for fly.io. If you use Windows, you can download the installer by this link. Or you can also use PowerShell script as well.

iwr https://fly.io/install.ps1 -useb | iex
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If you use NIX systems, you can run a bash script.

curl -L https://fly.io/install.sh | sh
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Or you can use a more elegant way with homebrew.

brew install flyctl
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Step 3

Most of you don't have an account on fly.io, and for this reason, follow this instruction:

fly auth signup
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If you already registered, then you need to log in:

fly auth login
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You should see something like this:

Opening https://fly.io/app/auth/cli/c62de925b715fafca3245a9016ec3e0f ...

Waiting for session... Done
successfully logged in as korols83@gmail.com
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Step 4

Go to your dashboard https://fly.io/dashboard. You have a free hobby plan for non-commercial use.

dashboard

There is one crucial action. You must add your credit/debit card. Don't worry. This service won't withdraw any money. You can add an empty card with a zero balance.

Step 5

Let's start to deploy the application. You need to run this command:

fly launch
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You'll see this information. It's what will be configured for your application.

Scanning source code
Detected a .NET app
Creating app in /Users/serhiikorol/RiderProjects/FlyIoSample
We're about to launch your .NET app on Fly.io. Here's what you're getting:

Organization: Serhii Korol           (fly launch defaults to the personal org)
Name:         flyiosample            (derived from your directory name)
Region:       Warsaw, Poland         (this is the fastest region for you)
App Machines: shared-cpu-1x, 1GB RAM (most apps need about 1GB of RAM)
Postgres:     <none>                 (not requested)
Redis:        <none>                 (not requested)
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And also, you'll see this question:

Do you want to tweak these settings before proceeding? (y/N)
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It would help if you typed 'y'.
You'll be automatically redirected to the page with the configuration that needs to be confirmed. Pay attention that the name of the application must be unique.

settings

If everything is good, you'll see this information:

Waiting for launch data... Done
Created app 'flyiosample' in organization 'personal'
Admin URL: https://fly.io/apps/flyiosample
Hostname: flyiosample.fly.dev
Wrote config file fly.toml
Validating /Users/serhiikorol/RiderProjects/FlyIoSample/fly.toml
Platform: machines
✓ Configuration is valid
==> Building image
Remote builder fly-builder-weathered-glitter-6371 ready
==> Building image with Docker
--> docker host: 20.10.12 linux x86_64
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As you might have noticed, the flyctl created your project's fly.toml file. It contains the minimal deploy configuration:

# fly.toml app configuration file generated for flyiosample on 2023-11-19T09:35:01+02:00
#
# See https://fly.io/docs/reference/configuration/ for information about how to use this file.
#

app = "flyiosample"
primary_region = "waw"

[build]

[http_service]
  internal_port = 8080
  force_https = true
  auto_stop_machines = true
  auto_start_machines = true
  min_machines_running = 0
  processes = ["app"]
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After flyctl finishes pushing the Docker image, you'll see an invitation to visit your deployed application.

image: registry.fly.io/flyiosample:deployment-01HFK829P639MJ9DDS4HVKBEHN
image size: 220 MB

Watch your deployment at https://fly.io/apps/flyiosample/monitoring

Provisioning ips for flyiosample
  Dedicated ipv6: 2a09:8280:1::69:aa45
  Shared ipv4: 66.241.125.123
  Add a dedicated ipv4 with: fly ips allocate-v4

This deployment will:
 * create 2 "app" machines

No machines in group app, launching a new machine
Creating a second machine to increase service availability
Finished launching new machines
-------
NOTE: The machines for [app] have services with 'auto_stop_machines = true' that will be stopped when idling

-------

Visit your newly deployed app at https://flyiosample.fly.dev/
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Step 6

Let's check this out that we did get.

deployed

By the way, you can easily open your application with the command:

flyctl apps open
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Step 7

And last, what you need to know. If your project deployed and you changed the application, then you should use another command:

fly deploy
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Also, you can check the status of your deployment:

fly status
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It'll be like this:

App
  Name     = flyiosample                                        
  Owner    = personal                                           
  Hostname = flyiosample.fly.dev                                
  Image    = flyiosample:deployment-01HFK829P639MJ9DDS4HVKBEHN  
  Platform = machines                                           

Machines
PROCESS ID              VERSION REGION  STATE   ROLE    CHECKS  LAST UPDATED         
app     148ed124c93798  1       waw     stopped                 2023-11-19T07:51:47Z    
app     6e82de57ad4058  1       waw     stopped                 2023-11-19T07:42:59Z
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Another command shows used IP addresses:

fly ips list
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Bonus

If you want to deploy a static application, then you need to add a Dockerfile with the content:

FROM pierrezemb/gostatic
COPY ./public/ /srv/http/
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Your static files will be copied to this image.

Conclution

I showed you a super-friendly and easy cloud service for deploying your applications. It can be helpful for demos, pet projects, and even technical tasks when looking for a job. This cloud service will be beneficial for newbies who don't have enough experience with Azure.

Thanks for reading. See you on the following week. And for sure, happy coding!

GitHub: https://github.com/SergKorol/FlyIoSample

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