Installing OpenFaaS on Alpine Linux Latest

OpenFaaS is an open-source serverless computing platform designed to simplify deploying your functions and microservices. This tutorial will guide you through the installation process of OpenFaaS on Alpine Linux Latest.

Prerequisites

Before proceeding with the installation process, ensure that you have met the following requirements:

• A computer or virtual machine running Alpine Linux Latest
• Docker and docker-compose installed on your system
• A basic understanding of Docker and docker-compose

Steps for Installing OpenFaaS

Follow the simple steps given below to install OpenFaaS on Alpine Linux Latest:

Step 1: Installing the faas-cli

First, we need to install the faas-cli command line tool. This tool is used for deploying functions to OpenFaaS.

To install the faas-cli, run the following command:

$ apk add curl
$ curl -sSL https://cli.openfaas.com | sudo sh

After installation, check the command by running faas-cli version.

Step 2: Clone the OpenFaaS repository

Next, we will clone the OpenFaaS repository into our system. Run the following command:

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

Step 3: Deploy Stack via Docker Compose

OpenFaaS makes use of docker-compose for deployment. We will make use of Docker Compose to start the OpenFaaS stack.

Run the following commands to create a Swarm:

$ docker swarm init

Edit the docker-compose file:

$ vi docker-compose.yml

And copy-paste the configuration provided by the OpenFaaS documentation:

version: "3.9"

services:
  prometheus:
    image: prom/prometheus
    volumes:
      - ./prometheus.yml:/etc/prometheus/prometheus.yml
    command:
      - '--config.file=/etc/prometheus/prometheus.yml'
    networks:
      - openfaas

  grafana:
    image: grafana/grafana
    environment:
      - GF_INSTALL_PLUGINS=grafana-clock-panel,grafana-simple-json-datasource
      - GF_SERVER_ROOT_URL=%(protocol)s://%(domain)s/grafana
      - GF_SECURITY_ADMIN_USER=admin
      - GF_SECURITY_ADMIN_PASSWORD=admin
    ports:
      - 3000:3000
    networks:
      - openfaas

  gateway:
    image: openfaas/faas-gateway:latest
    depends_on:
      - queue-worker
    environment:
      - BASIC_AUTH=true
      - basic_auth_user=admin
      - basic_auth_password=admin
      - faas_functions_providerurl=http://127.0.0.1:8080/
    ports:
      - 8080:8080
    networks:
      - openfaas

  queue-worker:
    image: openfaas/faas-worker:latest
    environment:
      - faas_gateway_address=gateway:8080
      - faas_function_suffix=_api
    networks:
      - openfaas

networks:
  openfaas:
    driver: overlay

Finally, start the OpenFaaS stack by executing the following command:

$ docker stack deploy func --compose-file docker-compose.yml

And that's it! OpenFaaS should now be up and running on your Alpine Linux system.

Conclusion

In this tutorial, we have discussed how to install OpenFaaS on Alpine Linux Latest. This serverless computing platform simplifies the deployment of your functions and microservices. The steps outlined above should help you get started with using OpenFaaS.