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acda51a6b4
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71
cli.py
71
cli.py
@ -20,24 +20,61 @@ TEMPLATE_DIR = "./templates"
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#region util
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def gen_pass() -> str:
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def gen_pass(pass_length: int = 20) -> str:
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"""Generates a simple password with the provided length
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Args:
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pass_length (int, optional): Length of password. Defaults to 20.
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Returns:
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str: The generated password.
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"""
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alphabet = string.ascii_letters + string.digits
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password = "".join(secrets.choice(alphabet) for _ in range(20))
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password = "".join(secrets.choice(alphabet) for _ in range(pass_length))
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return password
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def check_positive(value: str):
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def check_positive(value: str) -> int:
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"""`argparse` type helper to check whether a given input is a positive integer.
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Args:
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value (str): Input to validate
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Raises:
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Exception: Input is neither a decimal or positive
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Returns:
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int: The parsed input if valid
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"""
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ivalue = int(value)
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if ivalue <= 0:
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raise Exception("Supplied number must be >= 0")
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if ivalue < 0:
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raise Exception(f"Supplied number must be >= 0")
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return ivalue
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def encode_member(member: str, mapping: Mapping[str, Any]) -> str:
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"""Encodes the member-entry of an inventory file with additional mappings.
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Args:
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member (str)
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mapping (Mapping[str, Any])
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Returns:
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str: member with mapping encoded
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"""
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return member + " " + " ".join([f"{k}={v}" for k, v in mapping.items()])
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def iter_ips(ip_format: str, start_octet: int):
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"""Simple iterator for generating ip's
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Args:
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ip_format (str)
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start_octet (int)
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Yields:
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Yeah idk too lazy too look up what the type annotation for a generator is
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"""
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ip_int = start_octet
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ip_fmt = ip_format
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while ip_int < 255:
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@ -46,6 +83,13 @@ def iter_ips(ip_format: str, start_octet: int):
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def copy_template(src: str, dest: str, mapping: Mapping[str, Any] = {}):
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"""Templates and writes a template file using Jinja as templating engine.
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Args:
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src (str): content of the file
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dest (str): place to write templated file to
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mapping (Mapping[str, Any], optional): datamapping. Defaults to {}.
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"""
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c = Path(src).read_text()
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t: Template = Template(c)
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r = t.render(mapping)
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@ -63,6 +107,15 @@ class MachineResources:
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@staticmethod
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def from_prompt() -> "MachineResources":
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"""Generate `MachineResources` from prompt.
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Raises:
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Exception
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Exception
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Returns:
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MachineResources
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"""
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cpus = input(
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"How many processors would you like to assign (default=1): ")
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if not cpus:
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@ -84,7 +137,9 @@ class MachineResources:
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class InventoryWriter:
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"""
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Helper class for generating Ansible inventory files.
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"""
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def __init__(self, location: str) -> None:
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self._file_handle = Path(location)
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self._groups: dict[str, set[str]] = DefaultDict(set)
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@ -112,7 +167,7 @@ def list_envs(args: argparse.Namespace):
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customer_path = path.join("customers", args.customer_name, "envs")
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print(" ".join(os.listdir(customer_path)))
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except FileNotFoundError:
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raise Exception(f"Customer `{args.customer_name}` does not exist.")
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print(f"Customer `{args.customer_name}` does not exist.")
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def delete_env(args: argparse.Namespace):
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@ -282,7 +337,7 @@ def main() -> int:
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cenv_parser.add_argument("--ip-int",
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type=check_positive,
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help="4th octet to start at",
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default=10)
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default="10")
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cenv_parser.set_defaults(func=create_env)
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# CLI definition for positional arg "delete"
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203
service.py
203
service.py
@ -1,59 +1,160 @@
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#!/usr/bin/env python3
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from __future__ import annotations
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from pathlib import Path
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from os import path
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import subprocess as sub
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import re
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from typing import Any, Callable
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P_BANNER = """
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██╗ ██╗███████╗██╗ ██╗ ██╗ ██████╗ ███╗ ███╗
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██║ ██║██╔════╝██║ ██║ ██╔╝██╔═══██╗████╗ ████║
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██║ █╗ ██║█████╗ ██║ █████╔╝ ██║ ██║██╔████╔██║
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██║███╗██║██╔══╝ ██║ ██╔═██╗ ██║ ██║██║╚██╔╝██║
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╚███╔███╔╝███████╗███████╗██║ ██╗╚██████╔╝██║ ╚═╝ ██║
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╚══╝╚══╝ ╚══════╝╚══════╝╚═╝ ╚═╝ ╚═════╝ ╚═╝ ╚═╝
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"""
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P_OPTIONS = """
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Options:
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0) Exit
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1) Maak/Update klantomgeving(en)
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2) Vernietig klantomgeving(en)
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3) Recover klantomgeving(en)
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4) List klantomgeving(en)
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h) Help
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Opties:
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0) Afsluiten
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1) Maak/Wijzig omgeving(en)
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2) Vernietig omgeving(en)
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3) Recover omgeving(en)
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4) List omgeving(en)
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"""
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RE_TEXT = re.compile(r"^\w+$")
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RE_NUM = re.compile(r"^\d+$")
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RE_ANY = re.compile(r".+")
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def _take_input(prompt: str, pattern: re.Pattern, default: str="") -> str:
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while True:
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i = input(prompt)
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if i == "":
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i = default
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if pattern.match(i):
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return i
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class Prompter:
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def __init__(self, ps1: str = "") -> None:
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self.ps1 = ps1
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def _build_prompt(self, prompt: str) -> str:
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return self.ps1 + prompt
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def take_input(self,
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prompt: str,
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pattern: re.Pattern[Any],
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default: str = "") -> str:
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prompt = self._build_prompt(prompt)
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return Prompter.input(prompt, lambda x: bool(pattern.match(x)),
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default)
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def take_choice(self, prompt: str, options: list[str]) -> str:
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prompt = self._build_prompt(prompt)
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return Prompter.input(prompt, lambda x: x in options)
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@staticmethod
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def input(prompt: str,
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validate: Callable[[str], bool],
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default: str = "") -> str:
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while True:
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i = input(prompt)
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if i == "":
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i = default
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if validate(i):
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return i
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def get_env_list(customer: str) -> list[str]:
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"""Fetches and parses a list of a customer's environments
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Args:
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customer (str): The customer to fetch environments from
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Returns:
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list[str]: The parsed environments
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"""
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return sub.check_output(["python3", "cli.py", "list",
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customer]).decode().strip("\n").split(" ")
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def main() -> int:
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print(P_BANNER)
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customer_name = Prompter.input("Wat is uw naam: ",
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lambda x: bool(RE_TEXT.match(x)))
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"""
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Ensures the necessary customer setup.
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"""
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envs_dir = path.join("customers", customer_name, "envs")
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Path(envs_dir).mkdir(parents=True, exist_ok=True)
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"""
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Initializes models for the event loop
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"""
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p = Prompter(ps1=f"{customer_name} > ")
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"""
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The main "event" loop
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"""
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while True:
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print(P_OPTIONS)
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c = input("Input: ")
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if c == "h":
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continue
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c = p.take_input("Keuze: ", RE_ANY)
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print(end="\n")
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if c == "0":
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"""
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Used to break out of the loop and exit the portal.
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"""
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break
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if c == "1":
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customer_name = _take_input("Customer name (example=opg): ",
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RE_TEXT)
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env_name = _take_input("Environment name (example=prod): ",
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RE_TEXT)
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amnt_nginx_web = _take_input(
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"Number of nginx webservers (default=1): ", RE_NUM, default="1")
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amnt_nginx_lb = _take_input(
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"Number of nginx loadbalancers (default=1): ", RE_NUM, default="1")
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amnt_psql = _take_input(
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"Number of postgres instances (default=1): ", RE_NUM, default="1")
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ip_format = _take_input(
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"Format of ip (default=192.168.56.{}, `{}` will be replaced with the correct octet at runtime): ",
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re.compile(r".+"), default="192.168.56.{}")
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ip_int = _take_input(
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"Number to start formatting the IP from (default=10): ",
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RE_NUM, default="10")
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"""
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Used to either update or create an environment.
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"""
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envs = get_env_list(customer_name)
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print(f"NOTE: Kies een albestaande omgevingen {envs} of iets nieuws...")
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fmt = "Omgevingsnaam:"
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env_name = p.take_input(fmt, RE_TEXT)
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templates = ["production", "acceptance", "test", "custom"]
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fmt = f"Het type omgeving {templates}: "
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template_name = p.take_choice(fmt, templates)
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if template_name == "custom":
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"""
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Asks for all machine's individually
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"""
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fmt = "Aantal nginx webservers (default=1): "
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amnt_nginx_web = p.take_input(fmt, RE_NUM, default="1")
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fmt = "Aantal nginx loadbalancers (default=1): "
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amnt_nginx_lb = p.take_input(fmt, RE_NUM, default="1")
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fmt = "Aantal postgres instances (default=1): "
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amnt_psql = p.take_input(fmt, RE_NUM, default="1")
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elif template_name == "production":
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amnt_nginx_web = "2"
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amnt_nginx_lb = "1"
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amnt_psql = "1"
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elif template_name == "acceptance":
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amnt_nginx_web = "1"
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amnt_nginx_lb = "0"
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amnt_psql = "1"
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# elif template_name == "test":
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else:
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amnt_nginx_web = "1"
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amnt_nginx_lb = "0"
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amnt_psql = "0"
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"""
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Define the format for templating ip-addresses.`{}` is required
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and will be subbed at runtime with the correct octet.
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"""
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print(end="\n")
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fmt = "NOTE: `{}` will be replaced with the correct octet at runtime"
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print(fmt)
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fmt = "Format of ip (default=192.168.56.{}): "
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ip_format = p.take_input(fmt, RE_ANY, default="192.168.56.{}")
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fmt = "Number to start formatting the IP from (default=10): "
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ip_int = p.take_input(fmt, RE_NUM, default="10")
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sub.call([
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"python3", "cli.py", "create", customer_name, env_name,
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@ -61,25 +162,37 @@ def main() -> int:
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"--num-nginx-lb", amnt_nginx_lb, "--ip-format", ip_format,
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"--ip-int", ip_int
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])
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print(f"Omgeving `{env_name}` successvol gemaakt.")
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if c == "2":
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customer_name = _take_input("Customer name (example=opg): ",
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RE_TEXT)
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env_name = _take_input("Environment name (example=prod): ",
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RE_TEXT)
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"""
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Deletes all traces of the chosen environment.
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"""
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envs = get_env_list(customer_name)
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fmt = f"Omgevingsnaam {envs}: "
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env_name = p.take_choice(fmt, envs)
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sub.call(["python3", "cli.py", "delete", customer_name, env_name])
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if c == "3":
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customer_name = _take_input("Customer name (example=opg): ",
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RE_TEXT)
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env_name = _take_input("Environment name (example=prod): ",
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RE_TEXT)
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"""
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Allows the customer to "force" their environment into the desired `up-state`.
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This `up-state` is a representation of the Vagrantfile, Ansible inventory and
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.ssh directory of that specific environment. The .ssh directory is only
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necessary in case of an existing storage-volume. Otherwise a new one
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keypair can be manually created or created using option 1.
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"""
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envs = get_env_list(customer_name)
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fmt = f"Omgevingsnaam {envs}: "
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env_name = p.take_choice(fmt, envs)
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sub.call(["python3", "cli.py", "recover", customer_name, env_name])
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if c == "4":
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customer_name = _take_input("Customer name (example=opg): ",
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RE_TEXT)
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sub.call(["python3", "cli.py", "list", customer_name])
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"""
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This branch displays the customer's existing environments
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"""
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print("De volgende omgeving(en) zijn aanwezig: ")
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for env in get_env_list(customer_name):
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print(f" - {env}")
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return 0
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