OCI Multicloud Landing Zone for Azure

The Oracle Cloud Infrastructure (OCI) Quick Start is a collection of examples that allow Oracle Cloud Infrastructure users to get a quick start deploying advanced infrastructure on OCI. This repository contains Terraform scripts specific to the Oracle Database@Azure service.

This repository is under active development. Building open source software is a community effort. We're excited to engage with the community building this.

Overview

A repository contains a collection of terraform modules and templates that helps an Azure administrator configure an Azure environment for Oracle Database@Azure and provision database related components (Exadata hardware, Virtual Machine (VM) Clusters, and databases) in Azure.

A user can apply the terraform plans from any computer that has connectivity to both Azure and OCI.

Prerequisites

To use the Terraform modules and templates in your environment, you must install the following software on the system from which you execute the terraform plans:

• Terraform
  • Alternate OpenTofu
• Python 3.x (min version 3.4) with packages
  • pip
  • venv
    • (venv) virtual env is recommended (not mandatory) to install python packages for oci-identity-provider/scripts/requirements.txt
• Azure CLI - How to install the Azure CLI
• OCI CLI - Quickstart
  • Setup OCI-CLI to authenticate to your tenancy
  • Create a token auth profile in your oci config with <MY_PROFILE_NAME>

Dependent which cloud resources a module manages, it will use some subset of the terraform cloud providers:

• OCI terraform provider
  • In this template example use OCI provider SecurityToken auth method, other acceptable provider implementation are described in OCI terraform provider configuration doc
• azuread terraform provider
• azurerm terraform provider

Provided Templates

These module automates the provisioning of components for running Oracle Database@Azure. Each template can run independently and default input values are configured which can be overridden per customer's preferences.

• templates/az-oci-sso-federation: Configures Single Sign-on (SSO) Between OCI and Microsoft Azure with identity federation.
• templates/az-oci-rbac-n-sso-fed: Configures SSO Between OCI and Microsoft Azure with identity federation And role, groups required for Oracle Database@Azure.
• templates/az-odb-rbac: Creates Roles and Groups required for for Oracle Database@Azure.
• templates/az-oci-exa-pdb: Provisions Oracle database infrastructure including networks, Exadata Infrastructure, VM Cluster, and database.

Please read the individual template documentation for more details.

Authentication

OCI Authentication

You must authenticate to your oci tenancy with config auth profile as <MY_PROFILE_NAME>. All available OCI regions are defined in Regions and Availability Domains.

oci session authenticate --region=<MY_REGION_IDENTIFIERr> --profile_name=<MY_PROFILE_NAME>

Example:

oci session authenticate --region=us-ashburn-1 --profile_name=ONBOARDING

AZ Authentication

Official Microsoft documentation to authenticate to Azure using Azure CLI

az login --tenant <azure-tenant-id>

Execution

Navigate into the templates directory.

Note: The Terraform state file writes to the directory from where you execute plans. You should keep this file in case you want to use Terraform to modify the environment configuration later. Refer to the Terraform documentation for more persistent and shareable ways to save state.

Setting up your environment with Terraform

Input variable can be set in the Variable Definitions file (e.g. terraform.tfvars) or through the command line or environment variables:

config_file_profile="<MY_PROFILE_NAME>"
compartment_ocid="<MY_OCI_TENANCY_ID>"
region="<MY_REGION_IDENTIFIER>"

or via Command Line

terraform plan -var="config_file_profile=<MY_PROFILE_NAME>" -var="compartment_ocid=<MY_OCI_TENANCY_ID>" -var="region=<MY_REGION_IDENTIFIER>"

or via Environment Variables

export TF_VAR_config_file_profile="<MY_PROFILE_NAME>"
export TF_VAR_compartment_ocid="<MY_OCI_TENANCY_ID>"
export TF_VAR_region="<MY_REGION_IDENTIFIER>"

Initialization

When running for first time, initialize the workspace directory using:

Terraform:

terraform init

OpenTofu:

tofu init

Application

To validate changes described without applying

Terraform:

terraform plan

OpenTofu:

tofu plan

To apply changes and create resources

Terraform:

terraform apply

OpenTofu:

tofu apply

Destruction

To remove all resources created in above steps, run destroy:

Terraform:

terraform destroy

OpenTofu:

tofu destroy

Further Documentation

• Terraform OCI Provider
• Oracle Cloud Infrastructure Provider
• Azure Active Directory Provider
• Azure Provider

Acknowledgement: Code derived adapted from samples, examples and documentations provided by above mentioned providers.

Contributing

Learn how to contribute.

License

Copyright (c) 2017, 2024 Oracle Corporation and/or its affiliates. Licensed under the Universal Permissive License 1.0 as shown at https://oss.oracle.com/licenses/upl.