Вивчайте Process Management with Python | Automation Fundamentals for DevOps

Process management is a core responsibility for DevOps engineers, as it involves tracking, controlling, and automating the execution of programs and services on servers or other infrastructure. In a DevOps context, process management ensures that essential services are running, helps identify resource hogs, and supports the automation of routine tasks like restarting failed processes or scaling applications. By understanding how to monitor and manage processes, you can maintain reliable systems and respond quickly to operational issues.


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# Simulated process listing using a hardcoded list of dictionaries
processes = [
    {"pid": 101, "name": "nginx", "status": "running"},
    {"pid": 102, "name": "postgres", "status": "sleeping"},
    {"pid": 103, "name": "redis", "status": "running"},
    {"pid": 104, "name": "python", "status": "running"},
    {"pid": 105, "name": "sshd", "status": "sleeping"}
]

print("PID\tName\t\tStatus")
for proc in processes:
    print(f"{proc['pid']}\t{proc['name']}\t\t{proc['status']}")

Having access to process information allows you to automate monitoring tasks that would otherwise require manual inspection. For instance, you can write scripts to detect if a critical process is not running, generate alerts, or even restart services automatically. This kind of automation is essential for maintaining uptime and ensuring that your infrastructure responds quickly to issues without direct human intervention. By leveraging Python to interact with process data, you can build custom tools tailored to your environment and specific operational needs.


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# Filtering processes by name from the hardcoded list
search_name = "python"
filtered = [proc for proc in processes if proc["name"] == search_name]

print(f"Processes with name '{search_name}':")
for proc in filtered:
    print(f"PID: {proc['pid']}, Status: {proc['status']}")

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Suggested prompts:

Can you explain how to filter processes by different criteria, like status?

How can I automate alerts if a process is not running?

What are some real-world examples of using Python for process management in DevOps?

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              123456789101112
            
# Simulated process listing using a hardcoded list of dictionaries
processes = [
    {"pid": 101, "name": "nginx", "status": "running"},
    {"pid": 102, "name": "postgres", "status": "sleeping"},
    {"pid": 103, "name": "redis", "status": "running"},
    {"pid": 104, "name": "python", "status": "running"},
    {"pid": 105, "name": "sshd", "status": "sleeping"}
]

print("PID\tName\t\tStatus")
for proc in processes:
    print(f"{proc['pid']}\t{proc['name']}\t\t{proc['status']}")


              1234567
            
# Filtering processes by name from the hardcoded list
search_name = "python"
filtered = [proc for proc in processes if proc["name"] == search_name]

print(f"Processes with name '{search_name}':")
for proc in filtered:
    print(f"PID: {proc['pid']}, Status: {proc['status']}")

Все було зрозуміло?

Дякуємо за ваш відгук!

Секція 1. Розділ 6

Process Management with Python

1. What is process management in the context of DevOps?

2. How can Python help automate process monitoring?

3. Why might you want to filter processes by name?

Process Management with Python

1. What is process management in the context of DevOps?

2. How can Python help automate process monitoring?

3. Why might you want to filter processes by name?