Convert port to string. (#919)

The str type check doesn't work if the port is a ruamel.yaml.scalarstring.SingleQuotedScalarString or ruamel.yaml.scalarstring.DoubleQuotedScalarString

Reviewed-on: #919
Co-authored-by: Thomas E Lackey <telackey@bozemanpass.com>
Co-committed-by: Thomas E Lackey <telackey@bozemanpass.com>

stack_orchestrator/deploy/k8s/cluster_info.py

@@ -86,10 +86,10 @@ class ClusterInfo:
             for service_name in services:
                 service_info = services[service_name]
                 if "ports" in service_info:
-                    for raw_port in service_info["ports"]:
+                    for raw_port in [str(p) for p in service_info["ports"]]:
                         if opts.o.debug:
                             print(f"service port: {raw_port}")
-                        if type(raw_port) is str and ":" in raw_port:
+                        if ":" in raw_port:
                             parts = raw_port.split(":")
                             if len(parts) != 2:
                                 raise Exception(f"Invalid port definition: {raw_port}")