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• The tutorial is aimed at users who want to migrate applications to Kubernetes or deploy new applications in Kubernetes and leverage their Active Directory server for authentication.
• Option one involves rewriting the application to send an LDAP request to the OpenLDAP server, but the tutorial focuses on option three, which does not require rewriting the application.
• Option three involves deploying OpenLDAP, DEX, and OAuth2 Proxy, and editing the system's hosts file to redirect the browser to the local host address where the servers are listening.
• OpenLDAP is a directory service developed by Microsoft for Windows domain networks that uses the Lightweight Directory Access Protocol (LDAP).
• DEX is an identity service that uses OpenID Connect, and OAuth2 Proxy is a reverse proxy for handling OAuth.
• The tutorial includes step-by-step instructions for deploying OpenLDAP, DEX, and OAuth2 Proxy, and editing the system's hosts file.
• At the end of the tutorial, the Pac-Man application is installed and access to it is secured by authenticating against the OpenLDAP server running in the Kubernetes cluster.