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#!/bin/bash
#
# Bash `flock` example.
# Works on: Linux, BSD
# Doesn't work on: MacOS

# The file which represent the lock.
LOCKFILE="`basename $0`.lock"

# Timeout in seconds.

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ELK - Remote clusters example

How to setup an Elasticsearch remote clusters lab.

Docker compose

Notes:

• Adapt the volumes definition
• Run with docker-compose up

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for pvc in $(kubectl get pvc | tail -n+2 | awk '{print $1}'); do
  kubectl patch pvc ${pvc} -p '{"metadata":{"finalizers": []}}' --type=merge
  kubectl delete pvc ${pvc}
done

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import sys
import requests
from lxml import etree


def get_app_info(app_id, app_name, country='lu', lang='fr-fr'):
    '''Fetches an application page and returns a set of contextual information.

    :param str app_id:      Application ID
    :param str app_name:    Application name

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Ansible - Helm management

Get releases list

- name: Get all Helm releases
  shell: >
    helm list -o yaml
  register: _helm_releases

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Python - argparse for Git-like CLI

Git uses a really nice command-oriented command line interface (doesn't know a better name). Bellow a script showing how this can be reproduced in Python using argparse.

Usage

Tested on Python3+.
The following commands and sub-commands are implemented:

• foo
• bar
• complex

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Python and Brew on MacOS Catalina

Installation

• Install Brew's OpenSSL: brew install openssl
• Install Brew's Python3: brew install python3

Configure

Add the following configuration to a ~/.bashrc or ~/.zshrc:

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Python - Multiprocessing managers with class

Demonstrate how to create a multiprocessing's manager server exposing a class.

Proxies

from multiprocessing.managers import BaseProxy


class GeneratorProxy(BaseProxy):
    """Manager's proxy for generators.

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Splunk - Office365 parsing

How to re-parse Office365 logs collected from the application splunk_ta_o365.

Context

The add-on splunk_ta_o365 may sometimes produces multi-lines JSON events (ie. an event with several JSON objects separated by a new line). The following modification change the line breaker configuration.

Edit the line breaker configuration

Edit the file $SPLUNK_HOME/etc/apps/splunk_ta_o365/local/props.conf (create it if it doesn't exists) and add the following lines:

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Splunk - Swift SAA JSON logs

How to ingest Swift SAA (Swift Alliance Access) logs in Splunk

SAA confguration

The SAA must be configured to:

• forwards its logs through syslog
• use the JSON (not formatted) format