TODO ==== * mount-media: lvm support. * import-keys: do not use ssh if host is localhost. * import-certs: * concat.pem; cert.pem and cert.crt symlinks. * restart services. * compile: * per-node compiled files (node/nodename.yaml and secrets/node/nodename.yaml). * backups: automatic definitions for per-node backup::users. * provision: * SSH installation should be optional and disabled for TPC profile.