Terraform supports a bunch of providers, but the vast majority of them are public cloud based. However, you could set up a local VMware vSphere cluster and use the vSphere provider to interact with that to get you going. There’s also a provider for OpenStack if you want to set up an OpenStack cluster. Alternatively …
From my .ssh/config: Host myshortname realname.example.com HostName realname.example.com IdentityFile ~/.ssh/realname_rsa # private key for realname User remoteusername Host myother realname2.example.org HostName realname2.example.org IdentityFile ~/.ssh/realname2_rsa # different private key for realname2 User remoteusername Then you can use the following to connect: ssh myshortname ssh myother And so on.
First and foremost, there is nothing to fear from being on a public IP allocation, so long as your security devices are configured right. What should I be replacing NAT with, if we don’t have physically separate networks? The same thing we’ve been physically separating them with since the 1980’s, routers and firewalls. The one …