Deploy Applications

This article will guide you through deploying a Spin Application to Fermyon Wasm Functions. You can deploy your Spin App in just a few steps.

Prerequisites

Install the Spin CLI

Before developing a Spin application, you need to have the Spin CLI installed locally. Here’s a way to install the Spin CLI:

$ curl -fsSL https://wasm-functions.fermyon.app/downloads/install.sh | bash
Additional info

It’s easier if you move the spin binary somewhere in your path, so it can be accessed from any directory. E.g., sudo mv ./spin /usr/local/bin/spin.

You can verify the version of Spin installed by running spin --version

Install the aka Plugin

Note

If you installed the Spin CLI following the steps provided above, you can skip this step.

In order to interact with Fermyon Wasm Functions (Login, Deploy, etc), you need to install the Fermyon Wasm Functions for Akamai Spin plugin (aka). The plugin can be installed using this command:

$ spin plugin install --url https://fermyon-neutrino-artifacts-public.s3.amazonaws.com/plugin/aka.json

If you’ve previously installed the aka plugin, take a moment to upgrade it to ensure compatibility with the latest features and fixes. To upgrade, run:

$ spin plugins update
$ spin plugins upgrade --url https://fermyon-neutrino-artifacts-public.s3.amazonaws.com/plugin/aka.json

You can learn more about managing Spin plugins in this article.

Log in to Fermyon Wasm Functions

Once you’ve installed the aka plugin for Spin, you must log in to Fermyon Wasm Functions, which requires your GitHub account to sign in:

$ spin aka login

Go to https://login.infra.fermyon.tech/realms/neutrino/device?user_code=AAAA-BBBB and follow the prompts.

Don't worry, we'll wait here for you. You got this.

Click the link displayed as part of the output from the spin aka login command. Authenticate using your individual GitHub Account and authorize the spin CLI for interacting with your Fermyon Wasm Functions account.

Deploy Your Application

After having signed in to Fermyon Wasm Functions, you deploy the application by running the spin aka deploy command from within the directory where the spin.toml file of your application is located:

$ spin aka deploy

App 'myapp' initialized successfully.
Deploying application to Fermyon Wasm Functions on Akamai..
Waiting for application to be ready... ready

View application:   https://c8769081-7ae5-4041-a10f-61d344a67da2.aka.fermyon.tech/

Specifying Variables

Spin supports application variables. Instead of being static, their values can be updated without modifying the application, creating a simpler experience for rotating secrets, updating API endpoints, and more.

For example, consider a Spin application with the following variable declaration as part of the application manifest (spin.toml):

[variables]
compression_level = { default = "1" }

When deploying the Spin application to Fermyon Wasm Functions, you can set variables by providing --variable flags and passing key and value using the key=value format. See the following spin aka deploy command, which changes the value of the compression_level variable to 3:

$ spin aka deploy --variable compression_level=3

Deploying application to Fermyon Wasm Functions on Akamai..
Waiting for application to be ready... ready

View application:   https://c8769081-7ae5-4041-a10f-61d344a67da2.aka.fermyon.tech/

Take a look at the Quickstart, it guides you through the process of creating a new Spin application (either using JavaScript, TypeScript, or Rust) and deploying it to Fermyon Wasm Functions.

Additional info

spin aka deploy can point to a spin.toml file by using the --file option.

Congratulations on deploying your Spin Application to Fermyon Wasm Functions! 🥳

Next Steps