OpenShift 4 Azure IPI installation

Ansible Repository for deploy OpenShift 4 clusters with IPI installation in connected, private and disconnected mode

There are different approaches for each mode, but always an IPI installation is used.

1. Prereqs

• Prerequisites for Launch Automatic Installation

• Prerequisites for Private / Disconnected Installation

2. Installation Modes

• Connected Installation
• Private/Restricted Installation
• Disconnected/AirGapped Installation

3. Egress/Outbound modes

3.1 Connected/Public OpenShift cluster Egress/Outbound mode

By default in the Connected/Public Clusters the Egress / Outbound connections to Internet is performed using the LoadBalancer Egress mode:

• Default with LoadBalancer

3.2 Private/Restricted OpenShift cluster Egress/Outbound mode

By default in the Private / Public Clusters the OutboundType is LoadBalancer, but other possibilities can be used for the Egress/Outbound mode

• Default with LoadBalancer
• Proxy in Bastion Host
• Azure Firewall
• Nat Gateway

3.3 Disconnected/Air Gapped Openshift Cluster Egress/Outbound mode

By default NO egress/outbound is allowed to Internet because is a Disconnected environment

• Airgapped/Disconnected Egress

4. Ingress Modes

• Ingress in Public/Connected Mode
• Ingress in Private Mode
• Ingress in Airgapped/Disconnected Mode

5. Platforms Tested

• Tested from Fedora33 with Ansible 2.9.18 and python 3.6
• Openshift 4.6.x and Openshift 4.9.x
• Latest Tested - 4.9.11

6. TODO

• Fully Test the option of VPN to connect to the cluster instead of Proxy Socks