(Tcl) Azure Key Vault - Setup Bootstrap Secret in Local Manager

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Accessing a cloud-based secrets manager requires authentication credentials, which cannot be stored in the manager itself. Instead, they must be securely stored locally.

One solution is to store the authentication credentials as a secret in the Windows Credentials Manager or Apple Keychain. These credentials serve as the "bootstrap secret" for authenticating with the cloud-based secrets manager.

This example demonstrates how to setup a bootstrap secret for the Azure Key Vault.

Note: This example requires Chilkat v10.1.0 or later.

For more information, see https://cknotes.com/chilkat-secrets-class-added-in-version-10-1-0/

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load ./chilkat.dll

# This example requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

set bootstrap [new_CkSecrets]

# We're going to store the bootstrap secret in the local manager.
# On Windows, this is the Windows Credentials Manager
# On MacOS/iOS, it is the Apple Keychain
CkSecrets_put_Location $bootstrap "local_manager"

# Specify the name of the bootstrap secret.
# service and username are required.
# appName and domain are optional.
# Note: The values are arbitrary and can be anything you want.
set json [new_CkJsonObject]

CkJsonObject_UpdateString $json "appName" "azure_bs"
CkJsonObject_UpdateString $json "service" "Example"
CkJsonObject_UpdateString $json "username" "Joe"

# The bootstrap secret for the Azure Key Vault will contain
# the tenant_id, client_id, and client_secret, like this:
set jsonSecret [new_CkJsonObject]

# Modify to your values.
CkJsonObject_UpdateString $jsonSecret "tenant_id" "YOUR_TENANT_ID"
CkJsonObject_UpdateString $jsonSecret "client_id" "YOUR_CLIENT_ID"
CkJsonObject_UpdateString $jsonSecret "client_secret" "YOUR_CLIENT_SECRET"

# Create or update the bootstrap secret.
set success [CkSecrets_UpdateSecretJson $bootstrap $json $jsonSecret]
if {$success == 0} then {
    puts [CkSecrets_lastErrorText $bootstrap]
    delete_CkSecrets $bootstrap
    delete_CkJsonObject $json
    delete_CkJsonObject $jsonSecret
    exit
}

puts "The Azure bootstrap secret has been stored."

delete_CkSecrets $bootstrap
delete_CkJsonObject $json
delete_CkJsonObject $jsonSecret