Reference library

Automation & scripting

CLI tools, scheduled jobs, filesystem tasks, and glue scripts that save time.

3 matches
Automation & scripting easy

How to Generate a cloud-init User Data Mock in Python

Generate a cloud-init user data mock for a VM using a dataclass and JSON in Python.

cloud-init automation dataclasses
Python
import json
from dataclasses import dataclass, asdict

@dataclass
class VMConfig:
    hostname: str
    cpus: int
    memory_mb: int
    ssh_key: str

def generate_cloud_init_mock(config: VMConfig) -> str:
    """Build a cloud-init user-data mock for a VM."""
    user_data = {
        "hostname": config.hostname,
    …
14 0 Open
Automation & scripting medium

How to check Python files for common coding mistakes

Walks a directory tree parsing each .py file with ast, reporting empty functions, bare try blocks, too many parameters, and empty classes.

ast linting code-quality
Python
import ast
import os
import sys

def check_file(filepath):
    try:
        with open(filepath) as f:
            code = f.read()
        tree = ast.parse(code, filename=filepath)
    except SyntaxError as e:
        print(f"{filepath}: SyntaxError: {e.msg}")
        return
    
    issues = []
    for node in ast.wal…
42 0 Open
Automation & scripting easy

Resize Disk Partitions in Python (Mock Script)

A mock disk partition resize script that uses dataclasses to model partitions, validate new sizes, and output the updated layout as JSON.

disk partition dataclass
Python
#!/usr/bin/env python3
"""Mock script to demonstrate disk partition resize logic."""
import json
from dataclasses import dataclass
from typing import Dict


@dataclass
class Partition:
    name: str
    size_gb: int
    mount_point: str

    def to_dict(self) -> Dict[str, object]:
        return {
            "name": …
16 0 Open

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