carolynvs

Experience Report: Building a kubectl plugin for Service Catalog

Why a kubectl plugin?

The goal of the service catalog cli (svcat) is to reduce the learning curve for developers and follow precedent set by kubectl when reasonable so that "finger memory" built-up from using kubectl translates to being able to use svcat without reading the help text much.

It isn't intended to be a replacement for kubectl, and instead users will jump back and forth between kubectl and svcat. As a plugin, it reinforces the mental model that svcat conforms to the way kubectl works, and makes the switch between the two less noticeable.

iAugur

# Adapted from solution provided by http://stackoverflow.com/users/57719/chin-huang http://stackoverflow.com/a/31465939/348868
# Scenario: You want to add a group to the list of the AllowGroups in ssh_config
# before:
# AllowGroups Group1
# After:
# AllowGroups Group1 Group2

- name: Add Group to AllowGroups
  replace:
    backup: yes

sj26

This is free and unencumbered software released into the public domain.

Anyone is free to copy, modify, publish, use, compile, sell, or distribute this software, either in source code form or as a compiled binary, for any purpose, commercial or non-commercial, and by any means.

In jurisdictions that recognize copyright laws, the author or authors of this software dedicate any and all copyright interest in the software to the public domain. We make this dedication for the benefit

njleonzhang

1 . goto beyond compare folder

 cd "/Applications/Beyond Compare.app/Contents/MacOS/"

2 . rename BCompare to BCompare.real

 mv BCompare BCompare.real

apokalyptik

The Goal

Set up Kubernetes on 3 Debian Jessie virtual machines: One master. Two nodes. Additionally do this without any "magic" so that what is required to be running to make everything work is plain and obvious.

We will be using flannel for the inter-machine networking layer. Mainly because it is useful and it seems to be pretty popular.

The Setup

alex

Most downloaded projects

SELECT
  file.project,
  COUNT(*) as total_downloads,
FROM
  TABLE_DATE_RANGE(
    [the-psf:pypi.downloads],
    TIMESTAMP("20160114"),

evantoli

Configure Git to use a proxy

In Brief

You may need to configure a proxy server if you're having trouble cloning or fetching from a remote repository or getting an error like unable to access '...' Couldn't resolve host '...'.

Consider something like:

Iman

#!/usr/bin/env bash
# Ubuntu Server or VM Cleaner. Safe by default; aggressive when asked.
# Example safe:       sudo ./clean.sh
# Example aggressive: sudo JOURNAL_DAYS=3 AGGRESSIVE=1 ./clean.sh
# Enable Docker image prune (images only): sudo ./clean.sh --docker-images
# Tested on Ubuntu 20.04, 22.04, 24.04 (server/VM images).

set -Eeuo pipefail
trap 'rc=$?; echo "Error on line $LINENO: $BASH_COMMAND (exit $rc)"; exit $rc' ERR
IFS=$'\n\t'

dolph

Fernet token creation

Time per request: 62.748 [ms] (mean)

Requests per second: 74.76 [#/sec] (mean)

Fernet token validation

Time per request: 93.782 [ms] (mean)

michaljemala

package main

import (
	"crypto/tls"
	"crypto/x509"
	"flag"
	"io/ioutil"
	"log"
	"net/http"
)