Microsoft changed servicePrincipalProfile interface. k8s.json needs to be updated.

[rberlind]

It seems that Microsoft changed the servicePrincipalProfile interface used by acs-engine on 8/23/2017. This causes errors when running "acs-engine generate k8s_rendered.json". k8s.json needs to be updated.

Instead of: "servicePrincipalClientID": "${service_principle_client_id}", "servicePrincipalClientSecret": "${service_principle_client_secret}" this now needs to be: "clientId": "${service_principle_client_id}", "secret": "${service_principle_client_secret}"

See the following: https://github.com/Azure/acs-engine/blob/master/examples/kubernetes.json https://github.com/Azure/acs-engine/commit/9dcaf23533f1e2306c2ecae98aab3c338a0a0a02#diff-b5112cc64d795c4b3621d99f732fb79e https://github.com/Azure/acs-engine/pull/1332

[rberlind]

After making this change, I was able to get past the "acs-engine generate" command and successfully run the "az group deployment create" command (with Terraform). The expected k8s resources were created in my Azure resource group.