Comment 6 for bug 1641224

Sounds logical but instance types listed on the RackSpace pricing page such as "Compute1-4" are not the ones used. Instead, flavour names such as "3.75 GB Compute v1" are used.

ERROR cannot add a new machine: invalid constraint value: instance-type=Compute1-4
valid values are: [512MB Standard Instance 1GB Standard Instance 2GB Standard Instance 4GB Standard Instance 8GB Standard Instance 15GB Standard Instance 30GB Standard Instance 1 GB Classic v1 15 GB Classic v1 2 GB Classic v1 256 MB Classic v1 30 GB Classic v1 4 GB Classic v1 512 MB Classic v1 8 GB Classic v1 15 GB Compute v1 30 GB Compute v1 3.75 GB Compute v1 60 GB Compute v1 7.5 GB Compute v1 1 GB General Purpose v1 2 GB General Purpose v1 4 GB General Purpose v1 8 GB General Purpose v1 120 GB I/O v1 15 GB I/O v1 30 GB I/O v1 60 GB I/O v1 90 GB I/O v1 120 GB Memory v1 15 GB Memory v1 240 GB Memory v1 30 GB Memory v1 60 GB Memory v1 OnMetal General Purpose v2 Large OnMetal General Purpose v2 Medium OnMetal General Purpose v2 Small OnMetal I/O v2 1 GB Performance 2 GB Performance 4 GB Performance 8 GB Performance 120 GB Performance 15 GB Performance 30 GB Performance 60 GB Performance 90 GB Performance]

See https://developer.rackspace.com/docs/cloud-servers/v2/general-api-info/flavors/#supported-flavors-for-cloud-servers. "compute1-4" is the id of the flavour named "3.75 GB Compute v1".