mittyok

## gist.read_properties_to_system_properties
https://stackoverflow.com/questions/4116681/how-to-load-system-properties-file-in-spring

## gist.brew_install_java6_jdk6
brew cask install homebrew/cask-versions/java6

## paste
<?xml version="1.0" encoding="utf-8"?>
<items><item valid="no"><title>Error in workflow 'gist'</title><subtitle>HTTPSConnectionPool(host='api.github.com', port=443): Max retries exceeded with url: /gists (Caused by NewConnectionError('&lt;urllib3.connection.VerifiedHTTPSConnection object at 0x10aec5210&gt;: Failed to establish a new connection: [Errno 61] Connection refused',))</subtitle><icon>/System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/AlertStopIcon.icns</icon></item></items>

## gist.docker_search_list_tags
curl -s -S 'https://registry.hub.docker.com/v2/repositories/library/centos/tags/' | jq '."results"[]["name"]' |sort

## gist.docker_search_list_tags
39807a98d2d702479af25f8f7f9ba8c6671a9cdd

## ChangeLogLevel.java
import ch.qos.logback.classic.Level;
import ch.qos.logback.classic.LoggerContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import java.util.List;

/**
 * change log level at runtime
 * Created by nkcoder on 10/8/16.

## retry_logic.go
func init() {
	rand.Seed(time.Now().UnixNano())
}

func retry(attempts int, sleep time.Duration, f func() error) error {
	if err := f(); err != nil {
		if s, ok := err.(stop); ok {
			// Return the original error for later checking
			return s.error
		}

## coredns kubernetes dnsmasq
apiVersion: v1
data:
  Corefile: |
    .:53 {
        errors
        health
        kubernetes cluster.local in-addr.arpa ip6.arpa {
            pods insecure
            upstream
            fallthrough in-addr.arpa ip6.arpa

## centos ubuntu boot system version
## 只是总结，并未验证对应的版本准确性，仅供参考
sysvinit, upstart, systemd：
	centos5使用sysvinit，centos6开始使用upstart，同时可用sysvinit，centos7开始使用systemd
	ubuntu: 6.10及以前使用sysvinit，14.10及以前使用upstart，同样可使用sysvinit，15.04开始预设使用systemd，但是开机时可以选择systemd或者upstart，两者不可共存

## confirm.go
import (
	"fmt"
	"log"
	"os"
	"sort"
)

// askForConfirmation uses Scanln to parse user input. A user must type in "yes" or "no" and
// then press enter. It has fuzzy matching, so "y", "Y", "yes", "YES", and "Yes" all count as
// confirmations. If the input is not recognized, it will ask again. The function does not return
	import ch.qos.logback.classic.Level;
	import ch.qos.logback.classic.LoggerContext;
	import org.slf4j.Logger;
	import org.slf4j.LoggerFactory;

	import java.util.List;

	/**
	* change log level at runtime
	* Created by nkcoder on 10/8/16.
	func init() {
	rand.Seed(time.Now().UnixNano())
	}

	func retry(attempts int, sleep time.Duration, f func() error) error {
	if err := f(); err != nil {
	if s, ok := err.(stop); ok {
	// Return the original error for later checking
	return s.error
	}
	apiVersion: v1
	data:
	Corefile: \|
	.:53 {
	errors
	health
	kubernetes cluster.local in-addr.arpa ip6.arpa {
	pods insecure
	upstream
	fallthrough in-addr.arpa ip6.arpa
	## 只是总结，并未验证对应的版本准确性，仅供参考
	sysvinit, upstart, systemd：
	centos5使用sysvinit，centos6开始使用upstart，同时可用sysvinit，centos7开始使用systemd
	ubuntu: 6.10及以前使用sysvinit，14.10及以前使用upstart，同样可使用sysvinit，15.04开始预设使用systemd，但是开机时可以选择systemd或者upstart，两者不可共存
	import (
	"fmt"
	"log"
	"os"
	"sort"
	)

	// askForConfirmation uses Scanln to parse user input. A user must type in "yes" or "no" and
	// then press enter. It has fuzzy matching, so "y", "Y", "yes", "YES", and "Yes" all count as
	// confirmations. If the input is not recognized, it will ask again. The function does not return