2024-10-31 20:18:37 +01:00
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< article itemscope itemtype = "http://schema.org/Article" > < div class = "article__header" > < header > < h1 style = "color:Tomato;" > Arrêt en douceur des machines virtuelles lorsque la machine hôte est bloquée, mise hors tension ou redémarrée< / h1 > < / header > < / div > < meta itemprop = "headline" content = "Arrêt en douceur des machines virtuelles lorsque la machine hôte est bloquée, mise hors tension ou redémarrée" > < div class = "article__info clearfix" > < ul class = "left-col menu" > < li >
2024-11-08 14:10:33 +01:00
< a class = "button button--secondary button--pill button--sm" style = "color:#00FFFF" href = "/archive.html?tag=virtuel" > virtuel< / a >
2024-10-31 20:18:37 +01:00
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< i class = "far fa-calendar-alt" > < / i > < span title = "Création" style = "color:#FF00FF" > 3 sept. 2022< / span >
< span title = "Modification" style = "color:#00FF7F" > 4 sept. 2022< / span > < / li > < / ul > < / div > < meta itemprop = "datePublished" content = "2022-09-04T00:00:00+02:00" >
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< div class = "article__content" itemprop = "articleBody" > < details >
< summary > < b > Afficher/cacher Sommaire< / b > < / summary >
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< / details > < p > < em > Le service libvirt-guests possède des paramètres qui peuvent être configurés pour s’ assurer que l’ invité est arrêté correctement.< / em > < / p >
< p > < strong > libvirt-guests< / strong > fait partie de l’ installation de libvirt et est installé par défaut. Ce service enregistre automatiquement les invités sur le disque lorsque l’ hôte s’ éteint, et les restaure dans leur état antérieur à l’ arrêt lorsque l’ hôte redémarre. Par défaut, ce paramètre est défini pour suspendre l’ invité. Si vous voulez que l’ invité soit arrêté, vous devrez modifier l’ un des paramètres du fichier de configuration libvirt-guests.< br / >
< code class = "language-plaintext info highlighter-rouge" > LE SERVICE libvirt-guests est INACTIF PAR DEFAUT< / code > < / p >
< p > Modifier les paramètres du service < strong > libvirt-guests< / strong > pour permettre l’ arrêt gracieux des invités< / p >
< p class = "info" > La procédure décrite ici permet l’ arrêt en douceur des machines virtuelles invitées lorsque la machine physique hôte est bloquée, mise hors tension ou doit être redémarrée.(< a href = "https://access.redhat.com/documentation/en-us/red_hat_enterprise_linux/6/html/virtualization_administration_guide/sub-sect-shutting_down_rebooting_and_force_shutdown_of_a_guest_virtual_machine-manipulating_the_libvirt_guests_configuration_settings" > Manipulating the libvirt-guests Configuration Settings< / a > )< / p >
< p > Ouvrir ou créer le fichier de configuration < code class = "language-plaintext highlighter-rouge" > /etc/conf.d/libvirt-guests< / code > < / p >
< div class = "language-plaintext highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > # URIs to check for running guests
# example: URIS='default xen:/// vbox+tcp://host/system lxc:///'
#URIS=default
# action taken on host boot
# - start all guests which were running on shutdown are started on boot
# regardless on their autostart settings
# - ignore libvirt-guests init script won't start any guest on boot, however,
# guests marked as autostart will still be automatically started by
# libvirtd
ON_BOOT=ignore
# Number of seconds to wait between each guest start. Set to 0 to allow
# parallel startup.
#START_DELAY=0
# action taken on host shutdown
# - suspend all running guests are suspended using virsh managedsave
# - shutdown all running guests are asked to shutdown. Please be careful with
# this settings since there is no way to distinguish between a
# guest which is stuck or ignores shutdown requests and a guest
# which just needs a long time to shutdown. When setting
# ON_SHUTDOWN=shutdown, you must also set SHUTDOWN_TIMEOUT to a
# value suitable for your guests.
ON_SHUTDOWN=shutdown
# If set to non-zero, shutdown will suspend guests concurrently. Number of
# guests on shutdown at any time will not exceed number set in this variable.
#PARALLEL_SHUTDOWN=0
# Number of seconds we're willing to wait for a guest to shut down. If parallel
# shutdown is enabled, this timeout applies as a timeout for shutting down all
# guests on a single URI defined in the variable URIS. If this is 0, then there
# is no time out (use with caution, as guests might not respond to a shutdown
# request). The default value is 300 seconds (5 minutes).
SHUTDOWN_TIMEOUT=240
# If non-zero, try to bypass the file system cache when saving and
# restoring guests, even though this may give slower operation for
# some file systems.
#BYPASS_CACHE=0
< / code > < / pre > < / div > < / div >
< p > < strong > libvirt-guests.service< / strong > < / p >
< ul >
< li > Configuré afin qu’ il arrête les machines virtuelles invitées lorsque l’ hôte s’ arrête.< / li >
< li > défini le délai d’ expiration sur moins de 5 minutes< / li >
< / ul >
< p > < strong > Définition des options< / strong > < / p >
< ul >
< li > < strong > URIS< / strong > - vérifie les connexions spécifiées pour un invité en cours d’ exécution. Le < strong > paramètre par défaut< / strong > fonctionne de la même manière que virsh lorsqu’ aucun URI explicite n’ est défini. En outre, on peut définir explicitement l’ URI à partir de /etc/libvirt/libvirt.conf. Il convient de noter que lors de l’ utilisation du paramètre par défaut du fichier de configuration libvirt, aucun sondage ne sera utilisé.< / li >
< li > < strong > ON_BOOT< / strong > - spécifie l’ action à effectuer sur les invités lorsque l’ hôte démarre. L’ option < strong > start< / strong > démarre tous les invités qui étaient en cours d’ exécution avant l’ arrêt, quels que soient leurs paramètres de démarrage automatique. L’ option ignore ne démarrera pas l’ invité en cours d’ exécution au démarrage, cependant, tout invité marqué comme démarrant automatiquement sera toujours démarré automatiquement par libvirtd.< / li >
< li > L’ option < strong > START_DELAY< / strong > - définit un intervalle de temps entre le démarrage des invités. Cette période de temps est définie en secondes. Utilisez le paramètre 0 pour vous assurer qu’ il n’ y a pas de délai et que tous les invités sont démarrés simultanément.< / li >
< li > < strong > ON_SHUTDOWN< / strong > - spécifie l’ action prise lorsqu’ un hôte s’ arrête. Les options qui peuvent être définies comprennent : < strong > suspend< / strong > qui suspend tous les invités en cours d’ exécution en utilisant < strong > virsh managedsave< / strong > et < strong > shutdown< / strong > qui arrête tous les invités en cours d’ exécution. Il est préférable d’ être prudent avec l’ utilisation de l’ option shutdown car il n’ y a aucun moyen de distinguer entre un invité qui est bloqué ou qui ignore les demandes d’ arrêt et un invité qui a juste besoin d’ un temps plus long pour s’ arrêter. Lorsque vous définissez l’ option < strong > ON_SHUTDOWN=shutdown< / strong > , vous devez également définir < strong > SHUTDOWN_TIMEOUT< / strong > à une valeur appropriée pour les invités.< / li >
< li > < strong > PARALLEL_SHUTDOWN< / strong > Indique que le nombre d’ invités à l’ arrêt à tout moment ne dépassera pas le nombre défini dans cette variable et que les invités seront suspendus simultanément. Si la valeur est 0, les clients ne sont pas arrêtés simultanément.< / li >
< li > Nombre de secondes à attendre pour qu’ un invité s’ arrête. Si < strong > SHUTDOWN_TIMEOUT< / strong > est activé, ce délai s’ applique comme un délai d’ arrêt de tous les invités sur un seul URI défini dans la variable URIS. Si < strong > SHUTDOWN_TIMEOUT< / strong > a la valeur < strong > 0< / strong > , il n’ y a pas de délai d’ attente (à utiliser avec prudence, car les invités peuvent ne pas répondre à une demande d’ arrêt). La valeur par défaut est de 300 secondes (5 minutes).< / li >
< li > < strong > BYPASS_CACHE< / strong > peut avoir 2 valeurs, 0 pour désactiver et 1 pour activer. Si cette option est activée, le cache du système de fichiers sera contourné lors de la restauration des invités. Notez que ce paramètre peut avoir un effet sur les performances et peut entraîner un fonctionnement plus lent pour certains systèmes de fichiers.< / li >
< / ul >
< p > Activer et démarrer le service < strong > libvirt-guests< / strong > < / p >
< div class = "language-plaintext highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > sudo systemctl enable libvirt-guests
sudo systemctl start libvirt-guests
< / code > < / pre > < / div > < / div >
< p > Etat< / p >
< div class = "language-plaintext highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > sudo systemctl status libvirt-guests
< / code > < / pre > < / div > < / div >
< div class = "language-plaintext highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > Loaded: loaded (/usr/lib/systemd/system/libvirt-guests.service; enabled; preset: disabled)
Active: active (exited) since Sat 2022-09-03 09:18:26 CEST; 1min 19s ago
Docs: man:libvirt-guests(8)
https://libvirt.org
Main PID: 6497 (code=exited, status=0/SUCCESS)
CPU: 9ms
sept. 03 09:18:26 archyan systemd[1]: Starting Suspend/Resume Running libvirt Guests...
sept. 03 09:18:26 archyan systemd[1]: Finished Suspend/Resume Running libvirt Guests.
< / code > < / pre > < / div > < / div >
< p > < code class = "language-plaintext warning highlighter-rouge" > Ne redémarrez pas le service car cela entraînerait l'arrêt de tous les domaines en cours d'exécution.< / code > < / p >
< p class = "info" > Service qui permet d’ exécuter des commandes avant l’ arrêt complet de la machine hôte , voir le lien suivant pour un exemple de script< / p >
< p > Comment configurer un serveur hôte afin que, lorsqu’ il est arrêté (< a href = "https://www.brianlinkletter.com/2019/09/run-a-script-on-virtual-machines-when-the-host-is-shut-down/" > Run a script on virtual machines when the host is shut down< / a > ):< / p >
< ul >
< li > il exécute un script qui exécute des commandes sur toutes les machines virtuelles en cours d’ exécution avant que l’ hôte n’ essaie de les arrêter.< / li >
< li > il attend que le script termine la configuration des machines virtuelles avant de poursuivre le processus d’ arrêt, d’ arrêter les machines virtuelles et éventuellement de les éteindre.< / li >
< / ul >
< p > Le service libvirt-guests est déjà démarré et activé, et il est configuré de manière appropriée (< code class = "language-plaintext highlighter-rouge" > ON_SHUTDOWN=shutdown< / code > ).< / p >
< p > Créer un nouveau service Systemd nommé < strong > graceful-shutdown< / strong > qui exécute un script < strong > stopvm.sh< / strong > lorsque le système hôte s’ arrête, mais avant que < em > Libvirt< / em > n’ arrête les machines virtuelles.< / p >
< div class = "language-plaintext highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > sudo nano /etc/systemd/system/graceful-shutdown.service
< / code > < / pre > < / div > < / div >
< div class = "language-plaintext highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > [Unit]
Description=Graceful Shutdown Service
DefaultDependencies=no
Requires=libvirt-guests.service
After=libvirt-guests.service
[Service]
Type=oneshot
RemainAfterExit=true
ExecStop=/usr/local/bin/stopvm.sh
[Install]
WantedBy=multi-user.target
< / code > < / pre > < / div > < / div >
< p > Le service “Graceful Shutdown” obligera Systemd à exécuter un script shell Linux, < code class = "language-plaintext highlighter-rouge" > /usr/local/bin/stopvm.sh< / code > avant que Systemd n’ arrête le service < em > libvirt-guests< / em > .< br / >
Le type de service est < strong > oneshot< / strong > , Systemd attendra que le script se termine avant de poursuivre son processus d’ arrêt standard.< / p >
< p class = "warning" > Le service “Graceful Shutdown” s’ appuie sur le service < em > libvirt-guests< / em > < br / >
Si le service < em > libvirt-guests< / em > n’ est pas en cours d’ exécution, le service “Graceful Shutdown” ne lancera pas le script < em > stopvm.sh< / em > et Libvirt éteindra les machines virtuelles, ce qui peut entraîner une corruption des processus ou des bases de données s’ exécutant sur ces machines virtuelles.< / p >
< p > Exemple de script “stopvm.sh” pour arrêter une VM< / p >
< div class = "language-plaintext highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > sudo nano /usr/local/bin/stopvm.sh
< / code > < / pre > < / div > < / div >
< div class = "language-bash highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > < span class = "c" > #!/bin/bash< / span >
< span class = "c" > # Shut down the VM< / span >
virsh shutdown yunobulls
< span class = "nb" > exit < / span > 0
< / code > < / pre > < / div > < / div >
< p > Le rendre exécutable< / p >
< div class = "language-plaintext highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > sudo chmod +x /usr/local/bin/stopvm.sh
< / code > < / pre > < / div > < / div >
< p > Activer et démarrer le service “Graceful Shutdown”< / p >
< div class = "language-bash highlighter-rouge" > < div class = "highlight" > < pre class = "highlight" > < code > < span class = "nb" > sudo < / span > systemctl < span class = "nb" > enable < / span > graceful-shutdown
< span class = "nb" > sudo < / span > systemctl start graceful-shutdown
< / code > < / pre > < / div > < / div >
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options.template = _options.template || options.template
if (typeof _options.middleware === 'function') {
options.middleware = _options.middleware
}
}
function compile (data) {
return options.template.replace(options.pattern, function (match, prop) {
const value = options.middleware(prop, data[prop], options.template)
if (typeof value !== 'undefined') {
return value
}
return data[prop] || match
})
}
'use strict';
function fuzzysearch (needle, haystack) {
var tlen = haystack.length;
var qlen = needle.length;
if (qlen > tlen) {
return false;
}
if (qlen === tlen) {
return needle === haystack;
}
outer: for (var i = 0, j = 0; i < qlen ; i + + ) {
var nch = needle.charCodeAt(i);
while (j < tlen ) {
if (haystack.charCodeAt(j++) === nch) {
continue outer;
}
}
return false;
}
return true;
}
var _$fuzzysearch_1 = fuzzysearch;
'use strict'
/* removed: const _$fuzzysearch_1 = require('fuzzysearch') */;
var _$FuzzySearchStrategy_5 = new FuzzySearchStrategy()
function FuzzySearchStrategy () {
this.matches = function (string, crit) {
return _$fuzzysearch_1(crit.toLowerCase(), string.toLowerCase())
}
}
'use strict'
var _$LiteralSearchStrategy_6 = new LiteralSearchStrategy()
function LiteralSearchStrategy () {
this.matches = function (str, crit) {
if (!str) return false
str = str.trim().toLowerCase()
crit = crit.trim().toLowerCase()
return crit.split(' ').filter(function (word) {
return str.indexOf(word) >= 0
}).length === crit.split(' ').length
}
}
'use strict'
var _$Repository_4 = {
put: put,
clear: clear,
search: search,
setOptions: __setOptions_4
}
/* removed: const _$FuzzySearchStrategy_5 = require('./SearchStrategies/FuzzySearchStrategy') */;
/* removed: const _$LiteralSearchStrategy_6 = require('./SearchStrategies/LiteralSearchStrategy') */;
function NoSort () {
return 0
}
const data = []
let opt = {}
opt.fuzzy = false
opt.limit = 10
opt.searchStrategy = opt.fuzzy ? _$FuzzySearchStrategy_5 : _$LiteralSearchStrategy_6
opt.sort = NoSort
opt.exclude = []
function put (data) {
if (isObject(data)) {
return addObject(data)
}
if (isArray(data)) {
return addArray(data)
}
return undefined
}
function clear () {
data.length = 0
return data
}
function isObject (obj) {
return Boolean(obj) & & Object.prototype.toString.call(obj) === '[object Object]'
}
function isArray (obj) {
return Boolean(obj) & & Object.prototype.toString.call(obj) === '[object Array]'
}
function addObject (_data) {
data.push(_data)
return data
}
function addArray (_data) {
const added = []
clear()
for (let i = 0, len = _data.length; i < len ; i + + ) {
if (isObject(_data[i])) {
added.push(addObject(_data[i]))
}
}
return added
}
function search (crit) {
if (!crit) {
return []
}
return findMatches(data, crit, opt.searchStrategy, opt).sort(opt.sort)
}
function __setOptions_4 (_opt) {
opt = _opt || {}
opt.fuzzy = _opt.fuzzy || false
opt.limit = _opt.limit || 10
opt.searchStrategy = _opt.fuzzy ? _$FuzzySearchStrategy_5 : _$LiteralSearchStrategy_6
opt.sort = _opt.sort || NoSort
opt.exclude = _opt.exclude || []
}
function findMatches (data, crit, strategy, opt) {
const matches = []
for (let i = 0; i < data.length & & matches . length < opt . limit ; i + + ) {
const match = findMatchesInObject(data[i], crit, strategy, opt)
if (match) {
matches.push(match)
}
}
return matches
}
function findMatchesInObject (obj, crit, strategy, opt) {
for (const key in obj) {
if (!isExcluded(obj[key], opt.exclude) & & strategy.matches(obj[key], crit)) {
return obj
}
}
}
function isExcluded (term, excludedTerms) {
for (let i = 0, len = excludedTerms.length; i < len ; i + + ) {
const excludedTerm = excludedTerms[i]
if (new RegExp(excludedTerm).test(term)) {
return true
}
}
return false
}
/* globals ActiveXObject:false */
'use strict'
var _$JSONLoader_2 = {
load: load
}
function load (location, callback) {
const xhr = getXHR()
xhr.open('GET', location, true)
xhr.onreadystatechange = createStateChangeListener(xhr, callback)
xhr.send()
}
function createStateChangeListener (xhr, callback) {
return function () {
if (xhr.readyState === 4 & & xhr.status === 200) {
try {
callback(null, JSON.parse(xhr.responseText))
} catch (err) {
callback(err, null)
}
}
}
}
function getXHR () {
return window.XMLHttpRequest ? new window.XMLHttpRequest() : new ActiveXObject('Microsoft.XMLHTTP')
}
'use strict'
var _$OptionsValidator_3 = function OptionsValidator (params) {
if (!validateParams(params)) {
throw new Error('-- OptionsValidator: required options missing')
}
if (!(this instanceof OptionsValidator)) {
return new OptionsValidator(params)
}
const requiredOptions = params.required
this.getRequiredOptions = function () {
return requiredOptions
}
this.validate = function (parameters) {
const errors = []
requiredOptions.forEach(function (requiredOptionName) {
if (typeof parameters[requiredOptionName] === 'undefined') {
errors.push(requiredOptionName)
}
})
return errors
}
function validateParams (params) {
if (!params) {
return false
}
return typeof params.required !== 'undefined' & & params.required instanceof Array
}
}
'use strict'
var _$utils_9 = {
merge: merge,
isJSON: isJSON
}
function merge (defaultParams, mergeParams) {
const mergedOptions = {}
for (const option in defaultParams) {
mergedOptions[option] = defaultParams[option]
if (typeof mergeParams[option] !== 'undefined') {
mergedOptions[option] = mergeParams[option]
}
}
return mergedOptions
}
function isJSON (json) {
try {
if (json instanceof Object & & JSON.parse(JSON.stringify(json))) {
return true
}
return false
} catch (err) {
return false
}
}
var _$src_8 = {};
(function (window) {
'use strict'
let options = {
searchInput: null,
resultsContainer: null,
json: [],
success: Function.prototype,
searchResultTemplate: '< li > < a href = "{url}" title = "{desc}" > {title}< / a > < / li > ',
templateMiddleware: Function.prototype,
sortMiddleware: function () {
return 0
},
noResultsText: 'No results found',
limit: 10,
fuzzy: false,
debounceTime: null,
exclude: []
}
let debounceTimerHandle
const debounce = function (func, delayMillis) {
if (delayMillis) {
clearTimeout(debounceTimerHandle)
debounceTimerHandle = setTimeout(func, delayMillis)
} else {
func.call()
}
}
const requiredOptions = ['searchInput', 'resultsContainer', 'json']
/* removed: const _$Templater_7 = require('./Templater') */;
/* removed: const _$Repository_4 = require('./Repository') */;
/* removed: const _$JSONLoader_2 = require('./JSONLoader') */;
const optionsValidator = _$OptionsValidator_3({
required: requiredOptions
})
/* removed: const _$utils_9 = require('./utils') */;
window.SimpleJekyllSearch = function (_options) {
const errors = optionsValidator.validate(_options)
if (errors.length > 0) {
throwError('You must specify the following required options: ' + requiredOptions)
}
options = _$utils_9.merge(options, _options)
_$Templater_7.setOptions({
template: options.searchResultTemplate,
middleware: options.templateMiddleware
})
_$Repository_4.setOptions({
fuzzy: options.fuzzy,
limit: options.limit,
sort: options.sortMiddleware,
exclude: options.exclude
})
if (_$utils_9.isJSON(options.json)) {
initWithJSON(options.json)
} else {
initWithURL(options.json)
}
const rv = {
search: search
}
typeof options.success === 'function' & & options.success.call(rv)
return rv
}
function initWithJSON (json) {
_$Repository_4.put(json)
registerInput()
}
function initWithURL (url) {
_$JSONLoader_2.load(url, function (err, json) {
if (err) {
throwError('failed to get JSON (' + url + ')')
}
initWithJSON(json)
})
}
function emptyResultsContainer () {
options.resultsContainer.innerHTML = ''
}
function appendToResultsContainer (text) {
options.resultsContainer.innerHTML += text
}
function registerInput () {
options.searchInput.addEventListener('input', function (e) {
if (isWhitelistedKey(e.which)) {
emptyResultsContainer()
debounce(function () { search(e.target.value) }, options.debounceTime)
}
})
}
function search (query) {
if (isValidQuery(query)) {
emptyResultsContainer()
render(_$Repository_4.search(query), query)
}
}
function render (results, query) {
const len = results.length
if (len === 0) {
return appendToResultsContainer(options.noResultsText)
}
for (let i = 0; i < len ; i + + ) {
results[i].query = query
appendToResultsContainer(_$Templater_7.compile(results[i]))
}
}
function isValidQuery (query) {
return query & & query.length > 0
}
function isWhitelistedKey (key) {
return [13, 16, 20, 37, 38, 39, 40, 91].indexOf(key) === -1
}
function throwError (message) {
throw new Error('SimpleJekyllSearch --- ' + message)
}
})(window)
}());
< / script >
<!-- Configuration -->
< script >
SimpleJekyllSearch({
searchInput: document.getElementById('search-input'),
resultsContainer: document.getElementById('results-container'),
noResultsText: '< p > Aucun résultat!< / p > ',
json: '/search.json',
searchResultTemplate: '< li > < a href = "{url}" > {date} {title}< / a > (Création {create})< / li > '
})
< / script >
< / div > < / div >
< script > ( f u n c t i o n ( ) {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function scrollToAnchor(anchor, duration, callback) {
var $root = this;
$root.animate({ scrollTop: $(anchor).position().top }, duration, function() {
window.history.replaceState(null, '', window.location.href.split('#')[0] + anchor);
callback & & callback();
});
}
$.fn.scrollToAnchor = scrollToAnchor;
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function affix(options) {
var $root = this, $window = $(window), $scrollTarget, $scroll,
offsetBottom = 0, scrollTarget = window, scroll = window.document, disabled = false, isOverallScroller = true,
rootTop, rootLeft, rootHeight, scrollBottom, rootBottomTop,
hasInit = false, curState;
function setOptions(options) {
var _options = options || {};
_options.offsetBottom & & (offsetBottom = _options.offsetBottom);
_options.scrollTarget & & (scrollTarget = _options.scrollTarget);
_options.scroll & & (scroll = _options.scroll);
_options.disabled !== undefined & & (disabled = _options.disabled);
$scrollTarget = $(scrollTarget);
isOverallScroller = window.isOverallScroller($scrollTarget[0]);
$scroll = $(scroll);
}
function preCalc() {
top();
rootHeight = $root.outerHeight();
rootTop = $root.offset().top + (isOverallScroller ? 0 : $scrollTarget.scrollTop());
rootLeft = $root.offset().left;
}
function calc(needPreCalc) {
needPreCalc & & preCalc();
scrollBottom = $scroll.outerHeight() - offsetBottom - rootHeight;
rootBottomTop = scrollBottom - rootTop;
}
function top() {
if (curState !== 'top') {
$root.removeClass('fixed').css({
left: 0,
top: 0
});
curState = 'top';
}
}
function fixed() {
if (curState !== 'fixed') {
$root.addClass('fixed').css({
left: rootLeft + 'px',
top: 0
});
curState = 'fixed';
}
}
function bottom() {
if (curState !== 'bottom') {
$root.removeClass('fixed').css({
left: 0,
top: rootBottomTop + 'px'
});
curState = 'bottom';
}
}
function setState() {
var scrollTop = $scrollTarget.scrollTop();
if (scrollTop >= rootTop & & scrollTop < = scrollBottom) {
fixed();
} else if (scrollTop < rootTop ) {
top();
} else {
bottom();
}
}
function init() {
if(!hasInit) {
var interval, timeout;
calc(true); setState();
// run calc every 100 millisecond
interval = setInterval(function() {
calc();
}, 100);
timeout = setTimeout(function() {
clearInterval(interval);
}, 45000);
window.pageLoad.then(function() {
setTimeout(function() {
clearInterval(interval);
clearTimeout(timeout);
}, 3000);
});
$scrollTarget.on('scroll', function() {
disabled || setState();
});
$window.on('resize', function() {
disabled || (calc(true), setState());
});
hasInit = true;
}
}
setOptions(options);
if (!disabled) {
init();
}
$window.on('resize', window.throttle(function() {
init();
}, 200));
return {
setOptions: setOptions,
refresh: function() {
calc(true, { animation: false }); setState();
}
};
}
$.fn.affix = affix;
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
function toc(options) {
var $root = this, $window = $(window), $scrollTarget, $scroller, $tocUl = $('< ul class = "toc toc--ellipsis" > < / ul > '), $tocLi, $headings, $activeLast, $activeCur,
selectors = 'h1,h2,h3', container = 'body', scrollTarget = window, scroller = 'html, body', disabled = false,
headingsPos, scrolling = false, hasRendered = false, hasInit = false;
function setOptions(options) {
var _options = options || {};
_options.selectors & & (selectors = _options.selectors);
_options.container & & (container = _options.container);
_options.scrollTarget & & (scrollTarget = _options.scrollTarget);
_options.scroller & & (scroller = _options.scroller);
_options.disabled !== undefined & & (disabled = _options.disabled);
$headings = $(container).find(selectors).filter('[id]');
$scrollTarget = $(scrollTarget);
$scroller = $(scroller);
}
function calc() {
headingsPos = [];
$headings.each(function() {
headingsPos.push(Math.floor($(this).position().top));
});
}
function setState(element, disabled) {
var scrollTop = $scrollTarget.scrollTop(), i;
if (disabled || !headingsPos || headingsPos.length < 1 ) { return ; }
if (element) {
$activeCur = element;
} else {
for (i = 0; i < headingsPos.length ; i + + ) {
if (scrollTop >= headingsPos[i]) {
$activeCur = $tocLi.eq(i);
} else {
$activeCur || ($activeCur = $tocLi.eq(i));
break;
}
}
}
$activeLast & & $activeLast.removeClass('active');
($activeLast = $activeCur).addClass('active');
}
function render() {
if(!hasRendered) {
$root.append($tocUl);
$headings.each(function() {
var $this = $(this);
$tocUl.append($('< li > < / li > ').addClass('toc-' + $this.prop('tagName').toLowerCase())
.append($('< a > < / a > ').text($this.text()).attr('href', '#' + $this.prop('id'))));
});
$tocLi = $tocUl.children('li');
$tocUl.on('click', 'a', function(e) {
e.preventDefault();
var $this = $(this);
scrolling = true;
setState($this.parent());
$scroller.scrollToAnchor($this.attr('href'), 400, function() {
scrolling = false;
});
});
}
hasRendered = true;
}
function init() {
var interval, timeout;
if(!hasInit) {
render(); calc(); setState(null, scrolling);
// run calc every 100 millisecond
interval = setInterval(function() {
calc();
}, 100);
timeout = setTimeout(function() {
clearInterval(interval);
}, 45000);
window.pageLoad.then(function() {
setTimeout(function() {
clearInterval(interval);
clearTimeout(timeout);
}, 3000);
});
$scrollTarget.on('scroll', function() {
disabled || setState(null, scrolling);
});
$window.on('resize', window.throttle(function() {
if (!disabled) {
render(); calc(); setState(null, scrolling);
}
}, 100));
}
hasInit = true;
}
setOptions(options);
if (!disabled) {
init();
}
$window.on('resize', window.throttle(function() {
init();
}, 200));
return {
setOptions: setOptions
};
}
$.fn.toc = toc;
});
})();
/*(function () {
})();*/
< / script > < script >
/* toc must before affix, since affix need to konw toc' height. */(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
var TOC_SELECTOR = window.TEXT_VARIABLES.site.toc.selectors;
window.Lazyload.js(SOURCES.jquery, function() {
var $window = $(window);
var $articleContent = $('.js-article-content');
var $tocRoot = $('.js-toc-root'), $col2 = $('.js-col-aside');
var toc;
var tocDisabled = false;
var hasSidebar = $('.js-page-root').hasClass('layout--page--sidebar');
var hasToc = $articleContent.find(TOC_SELECTOR).length > 0;
function disabled() {
return $col2.css('display') === 'none' || !hasToc;
}
tocDisabled = disabled();
toc = $tocRoot.toc({
selectors: TOC_SELECTOR,
container: $articleContent,
scrollTarget: hasSidebar ? '.js-page-main' : null,
scroller: hasSidebar ? '.js-page-main' : null,
disabled: tocDisabled
});
$window.on('resize', window.throttle(function() {
tocDisabled = disabled();
toc & & toc.setOptions({
disabled: tocDisabled
});
}, 100));
});
})();
(function() {
var SOURCES = window.TEXT_VARIABLES.sources;
window.Lazyload.js(SOURCES.jquery, function() {
var $window = $(window), $pageFooter = $('.js-page-footer');
var $pageAside = $('.js-page-aside');
var affix;
var tocDisabled = false;
var hasSidebar = $('.js-page-root').hasClass('layout--page--sidebar');
affix = $pageAside.affix({
offsetBottom: $pageFooter.outerHeight(),
scrollTarget: hasSidebar ? '.js-page-main' : null,
scroller: hasSidebar ? '.js-page-main' : null,
scroll: hasSidebar ? $('.js-page-main').children() : null,
disabled: tocDisabled
});
$window.on('resize', window.throttle(function() {
affix & & affix.setOptions({
disabled: tocDisabled
});
}, 100));
window.pageAsideAffix = affix;
});
})();
< / script > <!-- -->
< / div >
< script > ( f u n c t i o n ( ) {
var $root = document.getElementsByClassName('root')[0];
if (window.hasEvent('touchstart')) {
$root.dataset.isTouch = true;
document.addEventListener('touchstart', function(){}, false);
}
})();
< / script >
< / body >
< / html >