Update Vagrant file to support multi VM with different config
Update Vagrant file to support multi VM with different config

treasure-data/omnibus-td-agent,iantalarico/google-fluentd,GoogleCloudPlatform/google-fluentd,GoogleCloudPlatform/google-fluentd,iantalarico/google-fluentd,treasure-data/omnibus-td-agent,iantalarico/google-fluentd,GoogleCloudPlatform/google-fluentd,treasure-data/omnibus-td-agent