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knotctl
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Update help/docs and actually make it possible to add more than one argument

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Micke Nordin 4 months ago
parent 2346c2de2e
commit 3787ad12df
2 changed files with 146 additions and 16 deletions
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79
README.md
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@ -51,8 +51,10 @@ source <(knotctl completion)
## Usage ## Usage
``` ```
usage: knotctl [-h] [--json | --no-json] usage: knotctl [-h] [--json | --no-json] {add,completion,config,delete,list,update} ...
{add,completion,config,delete,list,update} ...
Manage DNS records with knot dns rest api:
* https://gitlab.nic.cz/knot/knot-dns-rest
positional arguments: positional arguments:
{add,completion,config,delete,list,update} {add,completion,config,delete,list,update}
@ -60,6 +62,48 @@ positional arguments:
options: options:
-h, --help show this help message and exit -h, --help show this help message and exit
--json, --no-json --json, --no-json
The Domain Name System specifies a database of information
elements for network resources. The types of information
elements are categorized and organized with a list of DNS
record types, the resource records (RRs). Each record has a
name, a type, an expiration time (time to live), and
type-specific data.
The following is a list of terms used in this program:
----------------------------------------------------------------
| Vocabulary | Description |
----------------------------------------------------------------
| zone | A DNS zone is a specific portion of the DNS |
| | namespace in the Domain Name System (DNS), |
| | which a specific organization or administrator |
| | manages. |
----------------------------------------------------------------
| name | In the Internet, a domain name is a string that |
| | identifies a realm of administrative autonomy, |
| | authority or control. Domain names are often |
| | used to identify services provided through the |
| | Internet, such as websites, email services and |
| | more. |
----------------------------------------------------------------
| rtype | A record type indicates the format of the data |
| | and it gives a hint of its intended use. For |
| | example, the A record is used to translate from |
| | a domain name to an IPv4 address, the NS record |
| | lists which name servers can answer lookups on |
| | a DNS zone, and the MX record specifies the |
| | mail server used to handle mail for a domain |
| | specified in an e-mail address. |
----------------------------------------------------------------
| data | A records data is of type-specific relevance, |
| | such as the IP address for address records, or |
| | the priority and hostname for MX records. |
----------------------------------------------------------------
This information was compiled from Wikipedia:
* https://en.wikipedia.org/wiki/DNS_zone
* https://en.wikipedia.org/wiki/Domain_Name_System
* https://en.wikipedia.org/wiki/Zone_file
``` ```
### ADD ### ADD
@ -67,6 +111,8 @@ options:
``` ```
usage: knotctl add [-h] -d DATA -n NAME -r RTYPE [-t TTL] -z ZONE usage: knotctl add [-h] -d DATA -n NAME -r RTYPE [-t TTL] -z ZONE
Add a new record to the zone.
options: options:
-h, --help show this help message and exit -h, --help show this help message and exit
-d DATA, --data DATA -d DATA, --data DATA
@ -81,6 +127,8 @@ options:
``` ```
usage: knotctl completion [-h] [-s SHELL] usage: knotctl completion [-h] [-s SHELL]
Generate shell completion script.
options: options:
-h, --help show this help message and exit -h, --help show this help message and exit
-s SHELL, --shell SHELL -s SHELL, --shell SHELL
@ -89,12 +137,14 @@ options:
### CONFIG ### CONFIG
``` ```
usage: knotctl config [-h] [-c CONTEXT] [-b BASEURL] [-p PASSWORD] [-u USERNAME] usage: knotctl config [-h] [-b BASEURL] [-c CONTEXT] [-p PASSWORD] [-u USERNAME]
Configure access to knot-dns-rest-api.
options: options:
-h, --help show this help message and exit -h, --help show this help message and exit
-c CONTEXT, --context CONTEXT
-b BASEURL, --baseurl BASEURL -b BASEURL, --baseurl BASEURL
-c CONTEXT, --context CONTEXT
-p PASSWORD, --password PASSWORD -p PASSWORD, --password PASSWORD
-u USERNAME, --username USERNAME -u USERNAME, --username USERNAME
``` ```
@ -104,6 +154,8 @@ options:
``` ```
usage: knotctl delete [-h] [-d DATA] [-n NAME] [-r RTYPE] -z ZONE usage: knotctl delete [-h] [-d DATA] [-n NAME] [-r RTYPE] -z ZONE
Delete a record from the zone.
options: options:
-h, --help show this help message and exit -h, --help show this help message and exit
-d DATA, --data DATA -d DATA, --data DATA
@ -115,7 +167,9 @@ options:
### LIST ### LIST
``` ```
usage: knotctl list [-h] [-d DATA] [-n NAME] [-r RTYPE] [-z ZONE] usage: knotctl list [-h] [-d DATA] [-n NAME] [-r RTYPE] -z ZONE
List records in the zone.
options: options:
-h, --help show this help message and exit -h, --help show this help message and exit
@ -130,15 +184,26 @@ options:
``` ```
usage: knotctl update [-h] -a [ARGUMENT ...] -d DATA -n NAME -r RTYPE [-t TTL] usage: knotctl update [-h] -a [ARGUMENT ...] -d DATA -n NAME -r RTYPE [-t TTL]
-z ZONE -z ZONE
Update a record in the zone. The record must exist in the zone.
In this case --data, --name, --rtype and --ttl switches are used
for searching for the appropriate record, while the --argument
switches are used for updating the record.
options: options:
-h, --help show this help message and exit -h, --help show this help message and exit
-a [ARGUMENT ...], --argument [ARGUMENT ...] -a [KEY=VALUE ...], --argument [KEY=VALUE ...]
Specify key - value pairs to be updated: Specify key - value pairs to be updated:
name=dns1.example.com. name=dns1.example.com. or data=127.0.0.1 for example.
--argument can be repeated
-d DATA, --data DATA -d DATA, --data DATA
-n NAME, --name NAME -n NAME, --name NAME
-r RTYPE, --rtype RTYPE -r RTYPE, --rtype RTYPE
-t TTL, --ttl TTL -t TTL, --ttl TTL
-z ZONE, --zone ZONE -z ZONE, --zone ZONE
Available arguments are:
data: New record data.
name: New record domain name.
rtype: New record type.
ttl: New record time to live (TTL).
``` ```

83
knotctl/__init__.py
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@ -246,44 +246,108 @@ def split_url(url: str) -> dict:
# Entry point to program # Entry point to program
def main() -> int: def main() -> int:
description = """Manage DNS records with knot dns rest api:
* https://gitlab.nic.cz/knot/knot-dns-rest"""
epilog = """
The Domain Name System specifies a database of information
elements for network resources. The types of information
elements are categorized and organized with a list of DNS
record types, the resource records (RRs). Each record has a
name, a type, an expiration time (time to live), and
type-specific data.
The following is a list of terms used in this program:
----------------------------------------------------------------
| Vocabulary | Description |
----------------------------------------------------------------
| zone | A DNS zone is a specific portion of the DNS |
| | namespace in the Domain Name System (DNS), |
| | which a specific organization or administrator |
| | manages. |
----------------------------------------------------------------
| name | In the Internet, a domain name is a string that |
| | identifies a realm of administrative autonomy, |
| | authority or control. Domain names are often |
| | used to identify services provided through the |
| | Internet, such as websites, email services and |
| | more. |
----------------------------------------------------------------
| rtype | A record type indicates the format of the data |
| | and it gives a hint of its intended use. For |
| | example, the A record is used to translate from |
| | a domain name to an IPv4 address, the NS record |
| | lists which name servers can answer lookups on |
| | a DNS zone, and the MX record specifies the |
| | mail server used to handle mail for a domain |
| | specified in an e-mail address. |
----------------------------------------------------------------
| data | A records data is of type-specific relevance, |
| | such as the IP address for address records, or |
| | the priority and hostname for MX records. |
----------------------------------------------------------------
This information was compiled from Wikipedia:
* https://en.wikipedia.org/wiki/DNS_zone
* https://en.wikipedia.org/wiki/Domain_Name_System
* https://en.wikipedia.org/wiki/Zone_file
"""
# Grab user input # Grab user input
parser = argparse.ArgumentParser() parser = argparse.ArgumentParser(description=description, epilog=epilog, formatter_class=argparse.RawDescriptionHelpFormatter)
parser.add_argument("--json", action=argparse.BooleanOptionalAction) parser.add_argument("--json", action=argparse.BooleanOptionalAction)
subparsers = parser.add_subparsers(dest="command") subparsers = parser.add_subparsers(dest="command")
addcmd = subparsers.add_parser("add")
add_description = "Add a new record to the zone."
addcmd = subparsers.add_parser("add", description=add_description)
addcmd.add_argument("-d", "--data", required=True) addcmd.add_argument("-d", "--data", required=True)
addcmd.add_argument("-n", "--name", required=True) addcmd.add_argument("-n", "--name", required=True)
addcmd.add_argument("-r", "--rtype", required=True) addcmd.add_argument("-r", "--rtype", required=True)
addcmd.add_argument("-t", "--ttl") addcmd.add_argument("-t", "--ttl")
addcmd.add_argument("-z", "--zone", required=True) addcmd.add_argument("-z", "--zone", required=True)
completecmd = subparsers.add_parser("completion") complete_description = "Generate shell completion script."
completecmd = subparsers.add_parser("completion", description=complete_description)
completecmd.add_argument("-s", "--shell") completecmd.add_argument("-s", "--shell")
configcmd = subparsers.add_parser("config") config_description = "Configure access to knot-dns-rest-api."
configcmd = subparsers.add_parser("config", description=config_description)
configcmd.add_argument("-b", "--baseurl") configcmd.add_argument("-b", "--baseurl")
configcmd.add_argument("-c", "--context") configcmd.add_argument("-c", "--context")
configcmd.add_argument("-p", "--password") configcmd.add_argument("-p", "--password")
configcmd.add_argument("-u", "--username") configcmd.add_argument("-u", "--username")
deletecmd = subparsers.add_parser("delete") delete_description = "Delete a record from the zone."
deletecmd = subparsers.add_parser("delete", description=delete_description)
deletecmd.add_argument("-d", "--data") deletecmd.add_argument("-d", "--data")
deletecmd.add_argument("-n", "--name") deletecmd.add_argument("-n", "--name")
deletecmd.add_argument("-r", "--rtype") deletecmd.add_argument("-r", "--rtype")
deletecmd.add_argument("-z", "--zone", required=True) deletecmd.add_argument("-z", "--zone", required=True)
listcmd = subparsers.add_parser("list") list_description = "List records in the zone."
listcmd = subparsers.add_parser("list", description=list_description)
listcmd.add_argument("-d", "--data") listcmd.add_argument("-d", "--data")
listcmd.add_argument("-n", "--name") listcmd.add_argument("-n", "--name")
listcmd.add_argument("-r", "--rtype") listcmd.add_argument("-r", "--rtype")
listcmd.add_argument("-z", "--zone", required=True) listcmd.add_argument("-z", "--zone", required=True)
updatecmd = subparsers.add_parser("update") update_description = "Update a record in the zone. The record must exist in the zone.\n"
update_description += "In this case --data, --name, --rtype and --ttl switches are used\n"
update_description += "for searching for the appropriate record, while the --argument\n"
update_description += "switches are used for updating the record."
update_epilog = """Available arguments are:
data: New record data.
name: New record domain name.
rtype: New record type.
ttl: New record time to live (TTL)."""
updatecmd = subparsers.add_parser("update", description=update_description, epilog=update_epilog, formatter_class=argparse.RawDescriptionHelpFormatter )
updatecmd.add_argument( updatecmd.add_argument(
"-a", "-a",
"--argument", "--argument",
nargs="*", nargs="*",
help="Specify key - value pairs to be updated: name=dns1.example.com.", action="append",
metavar="KEY=VALUE",
help=
"Specify key - value pairs to be updated: name=dns1.example.com. or data=127.0.0.1 for example. --argument can be repeated",
required=True, required=True,
) )
updatecmd.add_argument("-d", "--data", required=True) updatecmd.add_argument("-d", "--data", required=True)
@ -306,7 +370,8 @@ def main() -> int:
mkdir(config_basepath) mkdir(config_basepath)
if args.command == "config": if args.command == "config":
run_config(config_filename, args.context, args.baseurl, args.username, args.password) run_config(config_filename, args.context, args.baseurl, args.username,
args.password)
return 0 return 0
if not isfile(config_filename): if not isfile(config_filename):

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