NewServiceDeployer is a Factory to create a new ServiceDeployer.

we are reading openwhisk credentials (apihost, namespace, and auth) in the following precedence order: (1) wskdeploy command line `wskdeploy --apihost --namespace --auth` (2) deployment file (3) manifest file (4) .wskprops we are following the same precedence order for APIGW_ACCESS_TOKEN but as a separate thread as APIGW_ACCESS_TOKEN only needed for APIs.

Possible sources for config info (e.g., API Host, Auth Key, Namespace).

Possible sources for config info (e.g., API Host, Auth Key, Namespace).

Possible sources for config info (e.g., API Host, Auth Key, Namespace).

TODO implement a command line flag for APIGW_TENANT_ID.

Note buyer beware this function returns the existing value, and only if there is not an existing value does it set it to newValue.

ServiceDeployer defines a prototype service deployer.