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[User Guide] Quick Start Phase 2 GitHub

github-actions edited this page Nov 12, 2024 · 21 revisions

2.2.2 GitHub

You can choose to bootstrap with bicep or terraform skip to the relevant section below to do that.

Although you can just run Deploy-Accelerator and fill out the prompted inputs, we recommend creating an inputs file. This will make it easier to run the accelerator more than once in order to refine your preferred configuration. In the following docs, we'll show that approach, but if you want to be prompted for inputs, just go ahead and run Deploy-Accelerator now.

2.2.2.1 GitHub with Bicep

  1. Create a new folder on your local drive called accelerator.

  2. Inside the accelerator create two folders called config and output. You'll store you input file inside config and the output folder will be the place that the accelerator stores files while it works.

  3. Inside the config folder create a new file called inputs.yaml. You can use json if you prefer, but our examples here are yaml.

    # Windows
    New-Item -ItemType "file" c:\accelerator\config\inputs.yaml -Force
    New-Item -ItemType "directory" c:\accelerator\output
    
    # Linux/Mac
    New-Item -ItemType "file" /accelerator/config/inputs.yaml -Force
    New-Item -ItemType "directory" /accelerator/output
    📂accelerator
    ┣ 📂config
    ┃ ┗ 📜inputs.yaml
    ┗ 📂output
    
  4. Open your inputs.yaml file in Visual Studio Code (or your preferred editor) and copy the content from inputs-github-bicep-complete.yaml into that file.

  5. Check through the file and update each input as required. It is mandatory to update items with placeholders surrounded by angle brackets <>:

    NOTE: The following inputs can also be supplied via environment variables. This may be useful for sensitive values you don't wish to persist to a file. The Env Var Prefix denotes the prefix the environment variable should have. The environment variable is formatting is <PREFIX>_<variable_name>, e.g. env:ALZ_iac_type = "bicep" or env:TF_VAR_github_personal_access_token = "*****...".

    Input Env Var Prefix Placeholder Description
    iac_type ALZ bicep This is the choice of bicep or terraform. Keep this as bicep for this example.
    bootstrap_module_name ALZ alz_github This is the choice of Version Control System. Keep this as alz_github for this example.
    starter_module_name ALZ complete This is the choice of Starter Modules, which is the baseline configuration you want for your Azure landing zone. Keep this as complete for this example.
    bootstrap_location TF_VAR <region> Replace <region> with the Azure region where you would like to deploy the bootstrap resources in Azure. This field expects the name of the region, such as uksouth. You can find a full list of names by running az account list-locations -o table.
    starter_locations TF_VAR [<region-1>,<region-2>] Replace <region-1> and <region-2> with the Azure regions where you would like to deploy the starter module resources in Azure. This field expects the name of the regions in and array, such as ["uksouth", "ukwest"]. You can find a full list of names by running az account list-locations -o table.
    root_parent_management_group_id TF_VAR "" This is the id of the management group that will be the parent of the management group structure created by the accelerator. If you are using the Tenant Root Group management group, you leave this as an empty string "" or supply the tenant id.
    subscription_id_management TF_VAR <management-subscription-id> Replace <management-subscription-id> with the id of the management subscription you created in the previous phase.
    subscription_id_identity TF_VAR <identity-subscription-id> Replace <identity-subscription-id> with the id of the identity subscription you created in the previous phase.
    subscription_id_connectivity TF_VAR <connectivity-subscription-id> Replace <connectivity-subscription-id> with the id of the connectivity subscription you created in the previous phase.
    github_personal_access_token TF_VAR <token-1> Replace <token-1> with the token-1 GitHub PAT you generated in a previous step.
    github_runners_personal_access_token TF_VAR <token-2> Replace <token-2> with the token-2 GitHub PAT you generated in the previous step specifically for the self-hosted runners. This only applies if you have use_self_hosted_agents set to true. You can set this to an empty string "" if you are not using self-hosted runners.
    github_organization_name TF_VAR <github-organization> Replace <github-organization> with the name of your GitHub organization. This is the section of the url after github.com. E.g. enter my-org for https://github.com/my-org.
    use_separate_repository_for_templates TF_VAR true Determine whether to create a separate repository to store workflow templates as an extra layer of security. Set to false if you don't wish to secure your workflow templates by using a separate repository. This will default to true.
    bootstrap_subscription_id TF_VAR "" Enter the id of the subscription in which you would like to deploy the bootstrap resources in Azure. If left blank, the subscription you are connected to via az login will be used. In most cases this is the management subscription, but you can specifiy a separate subscription if you prefer.
    service_name TF_VAR alz This is used to build up the names of your Azure and GitHub resources, for example rg-<service_name>-mgmt-uksouth-001. We recommend using alz for this.
    environment_name TF_VAR mgmt This is used to build up the names of your Azure and GitHub resources, for example rg-alz-<environment_name>-uksouth-001. We recommend using mgmt for this.
    postfix_number TF_VAR 1 This is used to build up the names of your Azure and GitHub resources, for example rg-alz-mgmt-uksouth-<postfix_number>. We recommend using 1 for this.
    use_self_hosted_agents TF_VAR true This controls if you want to deploy self-hosted agents. This will default to true.
    use_private_networking TF_VAR true This controls whether private networking is deployed for your self-hosted agents and storage account. This only applies if you have use_self_hosted_agents set to true. This defaults to true.
    allow_storage_access_from_my_ip TF_VAR false This is not relevant to Bicep and we'll remove the need to specify it later, leave it set to false.
    apply_approvers TF_VAR <email-address> This is a list of service principal names (SPN) of people you wish to be in the group that approves apply of the Azure landing zone module. This is an array of strings like ["abc@xyz.com", "def@xyz.com", "ghi@xyz.com"]. You may need to check what the SPN is prior to filling this out as it can vary based on identity provider. Use empty array [] to disable approvals. Note if supplying via the user interface, use a comma separated string like abc@xyz.com,def@xyz.com,ghi@xyz.com.
    create_branch_policies TF_VAR true This controls whether to create branch policies for the repository. This defaults to true.
  6. Now head over to your chosen starter module documentation to get the specific inputs for that module. Come back here when you are done.

  7. In your PowerShell Core (pwsh) terminal run the module:

    # Windows (adjust the paths to match your setup)
    Deploy-Accelerator -inputs "c:\accelerator\config\inputs.yaml" -output "c:\accelerator\output"
    
    # Linux/Mac (adjust the paths to match your setup)
    Deploy-Accelerator -inputs "/accelerator/config/inputs.yaml" -output "/accelerator/output"
  8. You will see a Terraform init and apply happen.

  9. There will be a pause after the plan phase you allow you to validate what is going to be deployed.

  10. If you are happy with the plan, then type yes and hit enter.

  11. The Terraform will apply and your environment will be bootstrapped.

2.2.2.2 GitHub with Terraform

  1. Create a new folder on you local drive called accelerator.

  2. Inside the accelerator create two folders called config and output. You'll store you input file inside config and the output folder will be the place that the accelerator stores files while it works.

  3. Inside the config folder create a new file called inputs.yaml. You can use json if you prefer, but our examples here are yaml.

    # Windows
    New-Item -ItemType "file" c:\accelerator\config\inputs.yaml -Force
    New-Item -ItemType "directory" c:\accelerator\output
    
    # Linux/Mac
    New-Item -ItemType "file" /accelerator/config/inputs.yaml -Force
    New-Item -ItemType "directory" /accelerator/output
    📂accelerator
    ┣ 📂config
    ┃ ┗ 📜inputs.yaml
    ┗ 📂output
    
  4. Open your inputs.yaml file in Visual Studio Code (or your preferred editor) and copy the content from the relevant input file for your chosen starter module:

    1. Complete Multi Region - inputs-github-terraform-complete-multi-region.yaml
    2. Financial Services Industry Landing Zone - inputs-github-terraform-financial-services-landing-zone.yaml
    3. Sovereign Landing Zone - inputs-github-terraform-sovereign-landing-zone.yaml
    4. Basic - inputs-github-terraform-basic.yaml
    5. Hub Networking - inputs-github-terraform-hubnetworking.yaml
    6. Complete - inputs-github-terraform-complete.yaml
  5. Check through the file and update each input as required. It is mandatory to update items with placeholders surrounded by angle brackets <>:

    NOTE: The following inputs can also be supplied via environment variables. This may be useful for sensitive values you don't wish to persist to a file. The Env Var Prefix denotes the prefix the environment variable should have. The environment variable is formatting is <PREFIX>_<variable_name>, e.g. env:ALZ_iac_type = "terraform" or env:TF_VAR_github_personal_access_token = "*****...".

    Input Env Var Prefix Placeholder Description
    iac_type ALZ terraform This is the choice of bicep or terraform. Keep this as terraform for this example.
    bootstrap_module_name ALZ alz_github This is the choice of Version Control System. Keep this as alz_github for this example.
    starter_module_name ALZ complete_multi_region This is the choice of Starter Modules, which is the baseline configuration you want for your Azure landing zone. Choose complete_multi_region, complete, hubnetworking or basic for this example.
    bootstrap_location TF_VAR <region> Replace <region> with the Azure region where you would like to deploy the bootstrap resources in Azure. This field expects the name of the region, such as uksouth. You can find a full list of names by running az account list-locations -o table.
    starter_locations TF_VAR [<region-1>,<region-2>] Replace <region-1> and <region-2> with the Azure regions where you would like to deploy the starter module resources in Azure. This field expects the name of the regions in and array, such as ["uksouth", "ukwest"]. You can find a full list of names by running az account list-locations -o table.
    root_parent_management_group_id TF_VAR "" This is the id of the management group that will be the parent of the management group structure created by the accelerator. If you are using the Tenant Root Group management group, you leave this as an empty string "" or supply the tenant id.
    subscription_id_management TF_VAR <management-subscription-id> Replace <management-subscription-id> with the id of the management subscription you created in the previous phase.
    subscription_id_identity TF_VAR <identity-subscription-id> Replace <identity-subscription-id> with the id of the identity subscription you created in the previous phase.
    subscription_id_connectivity TF_VAR <connectivity-subscription-id> Replace <connectivity-subscription-id> with the id of the connectivity subscription you created in the previous phase.
    github_personal_access_token TF_VAR <token-1> Replace <token-1> with the token-1 GitHub PAT you generated in a previous step.
    github_runners_personal_access_token TF_VAR <token-2> Replace <token-2> with the token-2 GitHub PAT you generated in the previous step specifically for the self-hosted runners. This only applies if you have use_self_hosted_agents set to true. You can set this to an empty string "" if you are not using self-hosted runners.
    github_organization_name TF_VAR <github-organization> Replace <github-organization> with the name of your GitHub organization. This is the section of the url after github.com. E.g. enter my-org for https://github.com/my-org.
    use_separate_repository_for_templates TF_VAR true Determine whether to create a separate repository to store workflow templates as an extra layer of security. Set to false if you don't wish to secure your workflow templates by using a separate repository. This will default to true.
    bootstrap_subscription_id TF_VAR "" Enter the id of the subscription in which you would like to deploy the bootstrap resources in Azure. If left blank, the subscription you are connected to via az login will be used. In most cases this is the management subscription, but you can specifiy a separate subscription if you prefer.
    service_name TF_VAR alz This is used to build up the names of your Azure and GitHub resources, for example rg-<service_name>-mgmt-uksouth-001. We recommend using alz for this.
    environment_name TF_VAR mgmt This is used to build up the names of your Azure and GitHub resources, for example rg-alz-<environment_name>-uksouth-001. We recommend using mgmt for this.
    postfix_number TF_VAR 1 This is used to build up the names of your Azure and GitHub resources, for example rg-alz-mgmt-uksouth-<postfix_number>. We recommend using 1 for this.
    use_self_hosted_agents TF_VAR true This controls if you want to deploy self-hosted agents. This will default to true.
    use_private_networking TF_VAR true This controls whether private networking is deployed for your self-hosted agents and storage account. This only applies if you have use_self_hosted_agents set to true. This defaults to true.
    allow_storage_access_from_my_ip TF_VAR false This controls whether to allow access to the storage account from your IP address. This is only needed for trouble shooting. This only applies if you have use_private_networking set to true. This defaults to false.
    apply_approvers TF_VAR <email-address> This is a list of service principal names (SPN) of people you wish to be in the group that approves apply of the Azure landing zone module. This is an array of strings like ["abc@xyz.com", "def@xyz.com", "ghi@xyz.com"]. You may need to check what the SPN is prior to filling this out as it can vary based on identity provider. Use empty array [] to disable approvals. Note if supplying via the user interface, use a comma separated string like abc@xyz.com,def@xyz.com,ghi@xyz.com.
    create_branch_policies TF_VAR true This controls whether to create branch policies for the repository. This defaults to true.
    architecture_definition_name TF_VAR N/A This is the name of the architecture definition to use when applying the ALZ archetypes via the architecture definition template. This is only relevant to some starter modules, such as the sovereign_landing_zone starter module. This defaults to null.
  6. Now head over to your chosen starter module documentation to get the specific inputs for that module. Come back here when you are done.

  7. In your PowerShell Core (pwsh) terminal run the module:

    NOTE: The following examples include 2 input files. This is the recommended approach for the complete_multi_region starter module. However, all inputs can be combined into a single file if desired and other starter modules only require a single input file.

    # Windows (adjust the paths to match your setup)
    Deploy-Accelerator -inputs "c:\accelerator\config\inputs.yaml", "c:\accelerator\config\networking.yaml" -output "c:\accelerator\output"
    # Linux/Mac (adjust the paths to match your setup)
    Deploy-Accelerator -inputs "/accelerator/config/inputs.yaml", "/accelerator/config/networking.yaml" -output "/accelerator/output"
  8. You will see a Terraform init and apply happen.

  9. There will be a pause after the plan phase you allow you to validate what is going to be deployed.

  10. If you are happy with the plan, then type yes and hit enter.

  11. The Terraform will apply and your environment will be bootstrapped.

Next Steps

Now head to Phase 3.

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Azure landing zones accelerators

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