Akash Deployments via Terraform

Akash Deployments may now be launched and managed via Terraform!

Within this guide we will break down the deployment process using this new path.

We begin with a review of the Terraform Manifest file components and provide a Full Manifest Example for additional clarity.

The following activities are possible currently via the Terraform Akash Provider:

• Deployment Create
• Deployment Close

Prerequisites

The following applications must be installed on the machine performing the Akash deployment via Terraform covered in this guide.

Terraform

Download and install the latest version of Terraform if a pre-existing installation is not present.

The Terraform client for Windows, MacOS, and Linux is available here.

Akash

The Akash CLI is necessary and the recommended version is 0.1.0.

Akash CLI install instructions are available here. Note only the `Install Akash CLI` and `Create/Fund Account` sections of this guide are necessary for Terraform use.

Terraform Manifest - Template

Overview

Within this section we review a Terraform Manifest example for building an Akash deployment.

Terraform Manifest File

• Use the blocks reviewed in this section to create your Terraform Manifest.
• Create a directory to house the files for your Terraform project and use this directory for all files created in the rest of this guide
• Create a file named akashdeployment.tf and populate the file with the blocks review below
• Refer to the Terraform Manifest - Complete Example for clarity on how the blocks covered in this section fit together.

Terraform Block

• The akash provider is defined and current version specified
• No adjustments to the Terraform manifest block should be necessary
• Periodically check to ensure the latest version is specified

terraform {
  required_providers {
    akash = {
      source = "cloud-j-luna/akash"
      version = "0.0.5"
    }
  }
}

Provider Block

• Provider attributes are defined in this block
• Replace the account_address and key_name attributes with your own values

provider "akash" {
  account_address = "akash1<redacted>"
  keyring_backend = "os"
  key_name = "mykey"
  node = "https://akash-rpc.polkachu.com:443"
  chain_id = "akashnet-2"
  chain_version = "0.1.0"
}

Resource Block

• Definition of the Akash Deployment
• Replace hello_world with the preferred name of your deployment
• Assumes that the deploy.yaml Akash SDL exists in the same directory as the Terraform file

resource "akash_deployment" "hello_world" {
  sdl = file("${path.module}/deploy.yaml")
}

Output Block

• Output the assigned URI and ports of the deployment
• Replace hello_world with the name of your deployment defined in the Resource Block

output "services" {
  value = akash_deployment.hello_world.services
}

Akash SDL Hello World Example

Overview

• Use the example Akash SDL below for our Terraform demonstration
• Create a file named deploy.yaml with the Terraform project direct created prior
• Copy the contents of the Hello World SDL below into the deploy.yaml file

Hello World SDL

---
version: "2.0"

services:
  website:
    image: nginxdemos/hello
    expose:
      - port: 80
        http_options:
          max_body_size: 104857600
        to:
          - global: true
profiles:
  compute:
    website:
      resources:
        cpu:
          units: 1.0
        memory:
          size: 512Mi
        storage:
          size: 512Mi
  placement:
    akash:
      attributes:
        host: akash
      signedBy:
        anyOf:
          - "akash1365yvmc4s7awdyj3n2sav7xfx76adc6dnmlx63"
      pricing:
        website:
          denom: uakt
          amount: 10000
deployment:
  website:
    akash:
      profile: website
      count: 1

Create Akash Deployment

Overview

In this section we create an Akash Deployment via Terraform.

Complete the construction of the Terraform manifest before initiating the deployment creation.

Ensure that the steps detailed in this section are executed from the directory in which the Terraform manifest exists.

NOTE - at this time the selection of the Akash provider from the bid list is automatic and selects the lowest priced bid. Consider adding attributes to the SDL to further limit provider bids received if necessary. Many providers advertise an organization attribute and inclusion of this attribute within the SDL would allow only that provider to bid. In the near future other schemes will be introduced to allow specific provider bid selection in the deployment creation process via Terraform.

Steps

Initialize the Terraform Project

terraform init

Confirm Resources to be Created

terraform plan

Create the Akash Deployment via Terraform

terraform apply -auto-approve

Expected/Example Output from Deployment Creation

• Confirm the application successfully deployed onto the Akash Network by visiting the generated and displayed in output service_uri

services = tolist([
  {
    "service_name" = "hello_world"
    "service_uri" = "at2flmmh8pdtdfclbmfe2pv59o.praetor.ingress.d3akash.cloud"
  },
])

Close Akash Deployment

Overview

In this section we close an Akash Deployment via Terraform.

Ensure that the steps detailed in this section are executed from the directory in which the Terraform manifest exists.

Steps

Close the Deployment

terraform destroy -auto-approve

Terraform Manifest - Complete Example

• Replace the account_address and key-name values

terraform {
  required_providers {
    akash = {
      source = "cloud-j-luna/akash"
      version = "0.0.5"
    }
  }
}

provider "akash" {
  account_address = "akash1g<redacted>"
  keyring_backend = "os"
  key_name = "mykey"
  node = "https://akash-rpc.polkachu.com:443"
  chain_id = "akashnet-2"
  chain_version = "0.1.0"
}

resource "akash_deployment" "hello_world" {
  sdl = file("${path.module}/deploy.yaml")
}

output "services" {
  value = akash_deployment.hello_world.services
}