Server on Azure

Provision a Linux server in Azure Cloud Platform

You can provision a server suitable to install OpenServerless in cloud provider Azure ops as follows:

1. install az, the Azure CLI

2. get Access and Secret Key

3. configure Azure

4. provision a server

5. retrieve the ip address to configure a DNS name

Once you have a Linux server up and running you can proceed configuring and installing OpenServerless.

Installing the Azure CLI

Our cli ops uses under the hood the az, command so you need to dowload and install it following those instructions.

Once installed, ensure it is available on the terminal executing the following command:

az version

you should receive something like this:

{
    "azure-cli": "2.64.0",
    "azure-cli-core": "2.64.0",
    "azure-cli-telemetry": "1.1.0",
    "extensions": {
        "ssh": "2.0.5"
    }
}

Ensure the version is at least 2.64.0

Connect a subscription

Next step is to connect az to a valid Azure subscription. Azure supports several authentication methods: check which one you prefer.

The easiest is the one described in Sign in interactively:

az login

This will open a browser and you will asked to login to you azure account. Once logged in, the az command will be automatically connected to the choosen subscription.

To check if the az command is properly connected to your subscription, check the output of this command:

   $ az account list --query "[].{subscriptionId: id, name: name, user: user.name}" --output table

   SubscriptionId                        Name                         User
   ------------------------------------  ---------------------------  -------------------------
   xxxxxxx-xxxx-xxxx-xxxx-xxxxxxxxxxxxx  Microsoft Azure Sponsorship  openserverless@apache.org

Configuring Azure to provision a server

Before you can provision a Linux server you have to configure Openserverless for Azure typing the command:

ops config azcloud

The system will then ask the following questions:

   *** Please, specify Azure Project Id and press enter.
   Azure Project Id: openserverless-k3s
   *** Please, specify Azure Zone and press enter.
   To get a list of valid values use:
      az account list-locations -o table
   
   Just press enter for default [eastus]:
   Azure Zone:

   *** Please, specify Azure virtual machine type and press enter.
   To get a list of valid values, use:
     az vm list-sizes --location <location> -o table
   where <location> is your current location.
   
   Just press enter for default [Standard_B4ms]:
   Azure virtual machine type:
   
   *** Please, specify Azure vm disk size in gigabyte and press enter.
   Just press enter for default [50]:
   Azure vm disk size in gigabyte:
   
   *** Please, specify Azure Cloud public SSH key and press enter.
   If you already have a public SSH key provide its path here. If you do not have it, generate a key pair with the following command:
     ssh-keygen
   The public key defaults to ~/.ssh/id_rsa.pub.
   
   Just press enter for default [~/.ssh/id_rsa.pub]:
   Azure Cloud public SSH key:
   
   *** Please, specify Azure Cloud VM image and press enter.
   Just press enter for default [Ubuntu2204]:
   Azure Cloud VM image:

Provision a server

You can provision one or more servers using ops. The servers will use the parameters you have just configured.

You can create a new server with:

    ops cloud azcloud vm-create <server-name>

❗ IMPORTANT

Replace <server-name> with a name you choose, for example ops-server

The command will create a new server in Azure Cloud with the parameters you specified in configuration.

You can also:

1. list servers you created with ops cloud azcloud vm-list

2. delete a server you created and you do not need anymore with ops cloud azcloud vm-delete <server-name>

Retrieve IP

The server will be provisioned with an IP address assigned by Azure Cloud.

You can read the IP address of your server with

ops cloud azcloud vm-getip <server-name>

You need this IP when configuring a DNS name for the server.