In the air-gap environment, the TKC/VKS is unable to pull images from internal harbor
vSphere with Tanzu
The additional trusted CA certificate is missing in TKC
If using TKC, follow the doc to add trusted CA into cluster
v1alpha3 Example: TKC with Additional Trusted CA Certificates for SSL/TLS
If using Cluster, follow the doc to add trusted CA into cluster
v1beta1 Example: Cluster with Additional Trusted CA Certificates for SSL/TLS