First stab at parser/assembler of fqdn

scripts/fqdn

@@ -0,0 +1,137 @@
+#!/usr/bin/env python3
+
+import argparse
+import json
+import re
+
+
+def assemble_drive(
+    environment,
+    function,
+    instance,
+    number,
+):
+    domainname = "drive.sunet.se"
+    if environment != "prod":
+        domainname = f"drive.{environment}.sunet.se"
+    if instance not in ["common", "gss", "lookup", "multinode", "internal"]:
+        domainname = f"{instance}.{domainname}"
+    return f"{function}{number}.{domainname}"
+
+
+def assemble_platform(
+    environment,
+    function,
+    instance,
+    location,
+    number,
+    service,
+):
+    return f"{instance}-{location}-{environment}-{function}-{number}.{service}.sunet.se"
+
+
+def parse_drive(fqdn: str) -> str:
+    type_regex = r"-*[1-9]*\..*"
+    function = re.sub(type_regex, "", fqdn)
+
+    env_regex = r".*(pilot|test).*"
+    environment = re.sub(env_regex, r"\1", fqdn)
+    domainname = f"drive.{environment}.sunet.se"
+
+    if environment not in ["pilot", "test"]:
+        environment = "prod"
+        domainname = "drive.sunet.se"
+
+    instance = fqdn.split(".")[1]
+    if instance == "drive":
+        instance = "common"
+    elif function in ["gss", "lookup"]:
+        instance = function
+    elif function in ["gssbackup", "gss-db"]:
+        instance = "gss"
+    elif function in ["lookupbackup", "lookup-db"]:
+        instance = "lookup"
+    elif function.startswith("multinode") or function == "kube":
+        instance = "multinode"
+
+    hostname = fqdn.split(".")[0]
+    number = hostname[-1]
+    location = "sto4"
+    if number == "3":
+        location = "sto3"
+    if number == "1":
+        location = "dco"
+    return json.dumps({
+        "domainname": domainname,
+        "environment": environment,
+        "function": function,
+        "hostname": hostname,
+        "instance": instance,
+        "location": location,
+        "number": number,
+        "service": "drive",
+    })
+
+
+def parse_platform(fqdn) -> str:
+    domainname = ".".join([x for x in fqdn.split(".")[1:]])
+    hostname = fqdn.split(".")[0]
+    instance, location, environment, function, number = hostname.split("-")
+    service = fqdn.split(".")[1]
+    return json.dumps({
+        "domainname": domainname,
+        "environment": environment,
+        "function": function,
+        "hostname": hostname,
+        "instance": instance,
+        "location": location,
+        "number": number,
+        "service": service,
+    })
+
+
+def main():
+    parser = argparse.ArgumentParser()
+    parser.add_argument("--flavor", "-f", type=str, default="platform")
+    subparsers = parser.add_subparsers(title="subcommands", dest="command")
+    parse = subparsers.add_parser(name="parse")
+    parse.add_argument("--fqdn", "-F", type=str, required=True)
+    assemble = subparsers.add_parser(name="assemble")
+    assemble.add_argument("--environment", "-e", type=str, default="")
+    assemble.add_argument("--function", "-F", type=str, default="")
+    assemble.add_argument("--instance", "-i", type=str, default="")
+    assemble.add_argument("--location", "-l", type=str, default="")
+    assemble.add_argument("--number", "-n", type=str, default="")
+    assemble.add_argument("--service", "-s", type=str, default="")
+    args = parser.parse_args()
+    flavor = args.flavor
+    command = args.command
+    if command == "parse":
+        if flavor == "drive":
+            print(parse_drive(args.fqdn))
+        else:
+            print(parse_platform(args.fqdn))
+    elif command == "assemble":
+        if flavor == "drive":
+            print(
+                assemble_drive(
+                    args.environment, args.function, args.instance, args.number
+                )
+            )
+        else:
+            print(
+                assemble_platform(
+                    args.environment,
+                    args.function,
+                    args.instance,
+                    args.location,
+                    args.number,
+                    args.service,
+                )
+            )
+    else:
+        parser.print_help()
+
+
+if __name__ == "__main__":
+    main()