TKG Image Builder for Kubernetes v1.20.5

Image Builder configuration files for building Tanzu Kubernetes Grid image using Kubernetes v1.20.5.

See Building Machine Images in the VMware Tanzu Kubernetes Grid v1.3 documentation.

Note: TKG Image Builder code packages for Kubernetes versions 1.20.5, 1.20.4, 1.19.9, 1.19.8, 1.18.17, 1.18,16, or 1.17.16 are constructed differently and require a different build procedure from packages for Kubernetes versions 1.19.3, 1.19.1, 1.18.10, 1.18.8, 1.17.13, and 1.17.77.