infra/r740: docker infrastructure

infra/r740/docker/variables.tf

@@ -0,0 +1,8 @@
+variable "sops_private_key" {
+  description = "Private SOPS GPG key for SwarmCD to decrypt secrets"
+  type = string
+}
+variable "docker_host" {
+  description = "Docker machine hostname"
+  type = string
+}