Automated Installation

Automated installation via Terraform

The Kubernetes Agent can be installed and managed using a combination of the Kubernetes Agent Helm chart >= v2.2.1, Octopus Deploy >= v0.30.0 Terraform provider and/or Helm Terraform provider.

Octopus Deploy & Helm

Using a combination of the Octopus Deploy and Helm providers you can completely manage the Kubernetes Agent via Terraform.

terraform {
  required_providers {
    octopusdeploy = {
      source  = "OctopusDeployLabs/octopusdeploy"
      version = "0.30.0"
    }

    helm = {
      source  = "hashicorp/helm"
      version = "2.13.2"
    }
  }
}

locals {
  octopus_api_key         = "API-XXXXXXXXXXXXXXXX"
  octopus_address         = "https://myinstance.octopus.app"
  octopus_polling_address = "https://polling.myinstance.octopus.app"
}

provider "helm" {
  kubernetes {
    # Configure authentication for me
  }
}

provider "octopusdeploy" {
  address = local.octopus_address
  api_key = local.octopus_api_key
}

resource "octopusdeploy_space" "agent_space" {
  name                 = "agent space"
  space_managers_teams = ["teams-everyone"]
}

resource "octopusdeploy_environment" "dev_env" {
  name     = "Development"
  space_id = octopusdeploy_space.agent_space.id
}

resource "octopusdeploy_polling_subscription_id" "agent_subscription_id" {}
resource "octopusdeploy_tentacle_certificate" "agent_cert" {}

resource "octopusdeploy_kubernetes_agent_deployment_target" "agent" {
  name         = "agent-one"
  space_id     = octopusdeploy_space.agent_space.id
  environments = [octopusdeploy_environment.dev_env.id]
  roles        = ["role-1", "role-2", "role-3"]
  thumbprint   = octopusdeploy_tentacle_certificate.agent_cert.thumbprint
  uri          = octopusdeploy_polling_subscription_id.agent_subscription_id.polling_uri
}

resource "helm_release" "octopus_agent" {
  name             = "octopus-agent-release"
  repository       = "oci://registry-1.docker.io"
  chart            = "octopusdeploy/kubernetes-agent"
  version          = "2.*.*"
  atomic           = true
  create_namespace = true
  namespace        = "octopus-agent-target"

  set {
    name  = "agent.acceptEula"
    value = "Y"
  }

  set {
    name  = "agent.name"
    value = octopusdeploy_kubernetes_agent_deployment_target.agent.name
  }

  set_sensitive {
    name  = "agent.serverApiKey"
    value = local.octopus_api_key
  }

  set {
    name  = "agent.serverUrl"
    value = local.octopus_address
  }

  set {
    name  = "agent.serverCommsAddress"
    value = local.octopus_polling_address
  }

  set {
    name  = "agent.serverSubscriptionId"
    value = octopusdeploy_polling_subscription_id.agent_subscription_id.polling_uri
  }

  set_sensitive {
    name  = "agent.certificate"
    value = octopusdeploy_tentacle_certificate.agent_cert.base64
  }

  set {
    name  = "agent.space"
    value = octopusdeploy_space.agent_space.name
  }

  set {
    name  = "agent.deploymentTarget.enabled"
    value = "true"
  }

  set_list {
    name  = "agent.deploymentTarget.initial.environments"
    value = octopusdeploy_kubernetes_agent_deployment_target.agent.environments
  }

  set_list {
    name  = "agent.deploymentTarget.initial.tags"
    value = octopusdeploy_kubernetes_agent_deployment_target.agent.roles
  }
}

Helm

The Kubernetes Agent can be installed using just the Helm provider alone. However, the associated deployment target that is created in Octopus cannot be managed solely using the Helm provider. This is because the Helm chart values relating to the agent are only used on initial installation. Any further modifications to them will not trigger an update to the deployment target unless you perform a complete reinstall of the agent.

If you don’t intend to manage the Kubernetes Agent configuration through Terraform (choosing to handle it via the Octopus Portal or API instead), this option will be beneficial to you as it is simpler to set up.

terraform {
  required_providers {
    helm = {
      source  = "hashicorp/helm"
      version = "2.13.2"
    }
  }
}

provider "helm" {
  kubernetes {
    # Configure authentication for me
  }
}

locals {
  octopus_api_key         = "API-XXXXXXXXXXXXXXXX"
  octopus_address         = "https://myinstance.octopus.app"
  octopus_polling_address = "https://polling.myinstance.octopus.app"
}

resource "helm_release" "octopus_agent" {
  name             = "octopus-agent-release"
  repository       = "oci://registry-1.docker.io"
  chart            = "octopusdeploy/kubernetes-agent"
  version          = "2.*.*"
  atomic           = true
  create_namespace = true
  namespace        = "octopus-agent-target"

  set {
    name  = "agent.acceptEula"
    value = "Y"
  }

  set {
    name  = "agent.targetName"
    value = "octopus-agent"
  }

  set_sensitive {
    name  = "agent.serverApiKey"
    value = local.octopus_api_key
  }

  set {
    name  = "agent.serverUrl"
    value = local.octopus_address
  }

  set {
    name  = "agent.serverCommsAddress"
    value = local.octopus_polling_address
  }

  set {
    name  = "agent.space"
    value = "Default"
  }

  set {
    name  = "agent.deploymentTarget.enabled"
    value = "true"
  }

  set_list {
    name  = "agent.deploymentTarget.initial.environments"
    value = ["Development"]
  }

  set_list {
    name  = "agent.deploymentTarget.initial.tags"
    value = ["Role-1"]
  }
}

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Page updated on Friday, August 30, 2024