huandu

map $http_origin $allow_origin {
  default "$http_origin";
}

map $request_method $cors_method {
  default "allowed";
  "OPTIONS" "preflight";
}

map $cors_method $cors_max_age {

roylee0704

docker logs nginx 2>&1 | grep "127." 

# ref: http://stackoverflow.com/questions/34724980/finding-a-string-in-docker-logs-of-container

kiview

---
- hosts:
    - all
  become: true
  tasks:
    - name: Update apt cache
      apt: update_cache=yes

    - name: Upgrade packages
      apt: upgrade=dist

Vince-Cercury

# How to monitor a secure external etcd service with Prometheus Operator
This guide will help you monitor an external etcd cluster. When the etcd is not hosted inside Kubernetes.
This is often the case with the Kubernetes setup. This has been tested with kube-aws but same principals will apply to other tools.

# Step 1 - Make the etcd certificates available to Prometheus pod
Prometheus Operator (and Prometheus) allow us to specify a tlsConfig. This is required as most likely your etcd metrics end points is secure.

## a - Create the secrets in the namespace 
Prometheus Operator allows us to mount secrets in the pod. By loading the secrets as files, they can be made available inside the Prometheus pod.

navicore

get name and image and startTime

kubectl get pods -Ao jsonpath='{range .items[*]}{@.metadata.name}{" "}{@..spec..containers[*].image}{" "}{@.status.phase}{" "}{@.status.startTime}{"\n"}{end}'

edited 10/2022 with .. and A suggestions

baymaxium

原文：中生代技术

经过数年蛰伏，DevOps成为了业界焦点，不过如何实现DevOps，依然路漫漫，本期文章转载自数人云组织的DevOps系列分享实录，了解并学习Google的DevOps实践

SRE（Site Reliability Engineering）是最早由Google提出，又经由Google发展完善的一个崭新运维理念。如今SRE已成为一个涵盖运维理念、思路、组织架构和具体实践的完整体系。数人云推出SRE系列教程，由SRE经验丰富的技术大牛们为大家分享运维一线的独家干货，揭示SRE背后的秘密。

数人云邀请了前Google SRE、《SRE：Google运维解密》的译者孙宇聪与大家进行了线上分享。本文讲述了SRE的基本概念和核心原理。与孙老师本人一样风趣幽默的文章，小数希望大家阅读愉快：）

PS:文末线下活动有孙老师翻译著作书籍赠送

yonglai

---
- name: Install docker
  gather_facts: No
  hosts: default

  tasks:
    - name: Install yum utils
      yum:
        name: yum-utils
        state: latest

miguelmota

package main

import (
	"fmt"
	"os"
	"runtime"
)

func userHomeDir() string {
	if runtime.GOOS == "windows" {

Integralist

var myFlagType string

func init() {
    const (
        flagValue = "default value is foo"
        flagUsage = "this is my flag explanation"
    )
    flag.StringVar(&myFlagType, "foo", flagValue, flagUsage)
    flag.StringVar(&myFlagType, "f", flagValue, flagUsage+" (shorthand)")
    flag.Parse()

ykfq

<title>Kubernetes 调度优化--重平衡策略方案整理</title>