locals {
  # Supernet(s) for the environment, see IP Address Allocation in wiki
  supernets = {
    prod = [
      "10.1.0.0/16",  # Common Services (gov and commercial) supernet
      "10.32.0.0/12", # Prod (gov and commercial) supernet
    ],
    test = [
      "10.1.0.0/16",  # Common Services (gov and commercial) supernet
      "10.16.0.0/12", # Test (gov and commercial) supernet
    ],
    common = []
  }[var.environment]

  # When there are multiples, put govcloud first, then commercial, and alternate if there are more than 2.
  # Put any standalone IPs at the end.
  #
  # See infrastructure_notes/Architecture_Notes.md and https://github.mdr.defpoint.com/mdr-engineering/msoc-infrastructure/wiki/IP-Address-Allocation for more information
  cidr_map = {
    prod = {
      "vpc-splunk"           = ["10.40.16.0/22"],                # Splunk -- **MOOSE**
      "vpc-access"           = ["10.40.20.0/22"],                # VPN, bastions (if any), etc.
      "vpc-public"           = ["10.40.24.0/22"],                # Public sites (github, ghe-backup, jira, ...)
      "vpc-scanners"         = ["10.40.12.0/22"],                # Qualys, etc.
      "vpc-system-services"  = ["10.32.0.0/22", "10.40.0.0/22"], # Internal services such as dns, mailrelay, etc.
      "vpc-private-services" = ["10.40.28.0/22"],                # Private Services - fm-shared-search, qcompliance, phantom, etc.

      # "old" mappings before architecture planning... we should eliminate these.
      "bastions"   = ["10.40.20.0/22"],                # vpc-access in mdr-prod-c2-gov
      "vpns"       = ["10.40.20.0/22"],                # vpc-access in mdr-prod-c2-gov
      "scanners"   = ["10.40.12.0/22"],                # vpc-qualys
      "dns"        = ["10.40.0.0/22", "10.32.0.0/22"], # vpc-system-services in commercial nad gov
      "monitoring" = ["10.40.0.0/22"],                 # legacy sensu, and vpc-system-services in gov
      "salt"       = ["10.40.0.0/22"],                 # legacy salt-master, and vpc-system-services in gov
      "web"        = ["10.40.0.0/22"],                 # legacy proxy/repo, and vpc-system-services in gov
      "moose"      = ["10.40.16.0/22"],                # legacy vpc, and vpc-system-services in gov
    },
    test = {
      "vpc-splunk"           = ["10.20.16.0/22"],                # Splunk -- **MOOSE**
      "vpc-access"           = ["10.20.20.0/22"],                # VPN, bastions (if any), etc.
      "vpc-public"           = ["10.20.24.0/22"],                # Public sites (github, ghe-backup, jira, ...)
      "vpc-scanners"         = ["10.20.12.0/22"],                # Qualys, etc.
      "vpc-system-services"  = ["10.16.0.0/22", "10.20.0.0/22"], # Internal services such as dns, mailrelay, etc.
      "vpc-private-services" = ["10.20.28.0/22"],                # Private Services - fm-shared-search, qcompliance, phantom, etc.

      # "old" mappings before architecture planning... we should eliminate these.
      "bastions"   = ["10.20.20.0/22"],                # vpc-access in mdr-test-c2-gov
      "vpns"       = ["10.20.20.0/22"],                # vpc-access in mdr-test-c2-gov
      "scanners"   = ["10.20.12.0/22"],                # vpc-qualys
      "dns"        = ["10.20.0.0/22", "10.16.0.0/22"], # vpc-system-services in commercial nad gov
      "monitoring" = ["10.20.0.0/22"],                 # legacy sensu, and vpc-system-services in gov
      "salt"       = ["10.20.0.0/22"],                 # legacy salt-master, and vpc-system-services in gov
      "web"        = ["10.20.0.0/22"],                 # legacy proxy/repo, and vpc-system-services in gov
      "moose"      = ["10.20.16.0/22"],                # legacy vpc and vpc-splunk in gov
    },
    common = {
      "bastions"   = ["10.40.20.0/22"],                # vpc-access in mdr-prod-c2-gov
      "vpns"       = ["10.40.20.0/22"],                # vpc-access in mdr-prod-c2-gov
      "scanners"   = ["10.40.12.0/22"],                # vpc-qualys
      "dns"        = ["10.40.0.0/22", "10.32.0.0/22"], # vpc-system-services in commercial nad gov
      "monitoring" = ["10.40.0.0/22"],                 # legacy sensu, and vpc-system-services in gov
      "salt"       = ["10.40.0.0/22"],                 # legacy salt-master, and vpc-system-services in gov
      "web"        = ["10.40.0.0/22"],                 # legacy proxy/repo, and vpc-system-services in gov
      "smtp"       = ["10.20.0.0/22"],                 # legacy relay, and vpc-system-services in gov
      "moose"      = ["10.40.16.0/22"],                # legacy vpc, and vpc-system-services in gov
    }
  }[var.environment]
}