How to install OpenFaaS on Clear Linux Latest

OpenFaaS is an open-source serverless platform that enables users to deploy and manage their own functions in any language. In this tutorial, we will show you how to install OpenFaaS on Clear Linux Latest.

Prerequisites

Before we begin with the installation of OpenFaaS on Clear Linux Latest, please make sure that you have the following prerequisites:

  • A Clear Linux Latest server
  • Docker engine installed and running
  • faas-cli installed (optional)
  • git command-line tool installed

Step 1: Prepare the System

Open a terminal and update the system with the following command:

sudo swupd update

Next, we need to make sure that the curl command-line tool is installed. If it isn't installed, you can install it using the following command:

sudo swupd bundle-add curl

Step 2: Clone the OpenFaaS Repository

In this step, we will clone the OpenFaaS repository from GitHub to our local system. Open a terminal and run the following command:

git clone https://github.com/openfaas/faas

This command will clone the OpenFaaS Git repository to the current directory.

Step 3: Install OpenFaaS

In this step, we will install OpenFaaS by running its installer script. Change your current directory to the faas directory by running the following command:

cd faas

Once inside the faas directory, run the following command:

./deploy_stack.sh

This command will start the installation process of OpenFaaS. Once the installation process is complete, you should see the OpenFaaS Gateway running in the terminal. You can now access the OpenFaaS Gateway by opening your browser and visiting http://localhost:8080.

Step 4: Test OpenFaaS

In this step, we will test OpenFaaS by deploying a sample function. First, we need to deploy the OpenFaaS CLI tool by running the following command:

curl -sL https://cli.openfaas.com | sudo sh

Next, we need to log in to the OpenFaaS Gateway by running the following command:

faas-cli login -g http://localhost:8080 -u admin -p changeme

This command logs in to the OpenFaaS Gateway with the default username and password. Note that you should change the default password as soon as possible.

Next, we need to deploy a sample function by running the following command:

faas-cli deploy -f https://raw.githubusercontent.com/openfaas/faas-cli/master/samples.yml

This command deploys a sample function defined in the samples.yml file.

Once the deployment process is complete, you can access the function by opening your browser and visiting http://localhost:8080/function/helloworld.

You should now see the output of the function on your browser.

Conclusion

Congratulations! You have successfully installed OpenFaaS on Clear Linux Latest and deployed a sample function. You are now ready to build and deploy your own functions using OpenFaaS.