Linux 查看内核版本 Linux 查看内核版本unameuname -srmhostnamectlhostnamectl hostnamectl | grep Kernel/proc/versioncat /proc/version内容解析Linux version 3.10.0-957.21.3.el7.x86_643：内核版本10：主修订版本0-957：次要修订版本21：补丁版本

ubuntu apt-get更换国内源 ubuntu apt-get更换国内源1.修改sources.list配置文件vi /etc/apt/sources.list在首行添加阿里云源deb http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-security main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-updates main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-proposed main restricted universe multiverse deb-src http://mirrors.aliyun.com/ubuntu/ bionic-backports main restricted universe multiverse保存退出2.更新缓存apt-get update apt-get upgrade

ubuntu设置允许root用户远程登录 ubuntu设置允许root用户远程登录1.修改root密码su passwd root2.配置ssh允许root远程登录sudo vi /etc/ssh/sshd_config取消注释PermitRootLogin并修改值prohibit-password为yesPermitRootLogin yes3.重启ssh服务service ssh restart service sshd restart

Centos7 设置IPv4优先访问 centos7系统中，如果网卡存在IPv6和IPv4并存的情况，默认先走IPv6，现在设置IPv4优先访问vi /etc/gai.conf输入内容precedence ::ffff:0:0/96 100:wq!保存即可

openstack 国基北盛脚本安装学习记录 html {overflow-x: initial !important;}:root { --bg-color:#ffffff; --text-color:#333333; --select-text-bg-color:#B5D6FC; --select-text-font-color:auto; --monospace:"Lucida Console",Consolas,"Courier",monospace; --title-bar-height:20px; } .mac-os-11 { --title-bar-height:28px; } html { font-size: 14px; background-color: var(--bg-color); color: var(--text-color); font-family: "Helvetica Neue", Helvetica, Arial, sans-serif; -webkit-font-smoothing: antialiased; } body { margin: 0px; padding: 0px; height: auto; inset: 0px; font-size: 1rem; line-height: 1.42857; overflow-x: hidden; background: inherit; tab-size: 4; } iframe { margin: auto; } a.url { word-break: break-all; } a:active, a:hover { outline: 0px; } .in-text-selection, ::selection { text-shadow: none; background: var(--select-text-bg-color); color: var(--select-text-font-color); } #write { margin: 0px auto; height: auto; width: inherit; word-break: normal; overflow-wrap: break-word; position: relative; white-space: normal; overflow-x: visible; padding-top: 36px; } #write.first-line-indent p { text-indent: 2em; } #write.first-line-indent li p, #write.first-line-indent p * { text-indent: 0px; } #write.first-line-indent li { margin-left: 2em; } .for-image #write { padding-left: 8px; padding-right: 8px; } body.typora-export { padding-left: 30px; padding-right: 30px; } .typora-export .footnote-line, .typora-export li, .typora-export p { white-space: pre-wrap; } .typora-export .task-list-item input { pointer-events: none; } @media screen and (max-width: 500px) { body.typora-export { padding-left: 0px; padding-right: 0px; } #write { padding-left: 20px; padding-right: 20px; } } #write li > figure:last-child { margin-bottom: 0.5rem; } #write ol, #write ul { position: relative; } img { max-width: 100%; vertical-align: middle; image-orientation: from-image; } button, input, select, textarea { color: inherit; font: inherit; } input[type="checkbox"], input[type="radio"] { line-height: normal; padding: 0px; } *, ::after, ::before { box-sizing: border-box; } #write h1, #write h2, #write h3, #write h4, #write h5, #write h6, #write p, #write pre { width: inherit; } #write h1, #write h2, #write h3, #write h4, #write h5, #write h6, #write p { position: relative; } p { line-height: inherit; } h1, h2, h3, h4, h5, h6 { break-after: avoid-page; break-inside: avoid; orphans: 4; } p { orphans: 4; } h1 { font-size: 2rem; } h2 { font-size: 1.8rem; } h3 { font-size: 1.6rem; } h4 { font-size: 1.4rem; } h5 { font-size: 1.2rem; } h6 { font-size: 1rem; } .md-math-block, .md-rawblock, h1, h2, h3, h4, h5, h6, p { margin-top: 1rem; margin-bottom: 1rem; } .hidden { display: none; } .md-blockmeta { color: rgb(204, 204, 204); font-weight: 700; font-style: italic; } a { cursor: pointer; } sup.md-footnote { padding: 2px 4px; background-color: rgba(238, 238, 238, 0.7); color: rgb(85, 85, 85); border-radius: 4px; cursor: pointer; } sup.md-footnote a, sup.md-footnote a:hover { color: inherit; text-transform: inherit; text-decoration: inherit; } #write input[type="checkbox"] { cursor: pointer; width: inherit; height: inherit; } figure { overflow-x: auto; margin: 1.2em 0px; max-width: calc(100% + 16px); padding: 0px; } figure > table { margin: 0px; } thead, tr { break-inside: avoid; break-after: auto; } thead { display: table-header-group; } table { border-collapse: collapse; border-spacing: 0px; width: 100%; overflow: auto; break-inside: auto; text-align: left; } table.md-table td { min-width: 32px; } .CodeMirror-gutters { border-right: 0px; background-color: inherit; } .CodeMirror-linenumber { user-select: none; } .CodeMirror { text-align: left; } .CodeMirror-placeholder { opacity: 0.3; } .CodeMirror pre { padding: 0px 4px; } .CodeMirror-lines { padding: 0px; } div.hr:focus { cursor: none; } #write pre { white-space: pre-wrap; } #write.fences-no-line-wrapping pre { white-space: pre; } #write pre.ty-contain-cm { white-space: normal; } .CodeMirror-gutters { margin-right: 4px; } .md-fences { font-size: 0.9rem; display: block; break-inside: avoid; text-align: left; overflow: visible; white-space: pre; background: inherit; position: relative !important; } .md-fences-adv-panel { width: 100%; margin-top: 10px; text-align: center; padding-top: 0px; padding-bottom: 8px; overflow-x: auto; } #write .md-fences.mock-cm { white-space: pre-wrap; } .md-fences.md-fences-with-lineno { padding-left: 0px; } #write.fences-no-line-wrapping .md-fences.mock-cm { white-space: pre; overflow-x: auto; } .md-fences.mock-cm.md-fences-with-lineno { padding-left: 8px; } .CodeMirror-line, twitterwidget { break-inside: avoid; } svg { break-inside: avoid; } .footnotes { opacity: 0.8; font-size: 0.9rem; margin-top: 1em; margin-bottom: 1em; } .footnotes + .footnotes { margin-top: 0px; } .md-reset { margin: 0px; padding: 0px; border: 0px; outline: 0px; vertical-align: top; background: 0px 0px; text-decoration: none; text-shadow: none; float: none; position: static; width: auto; height: auto; white-space: nowrap; cursor: inherit; -webkit-tap-highlight-color: transparent; line-height: normal; font-weight: 400; text-align: left; box-sizing: content-box; direction: ltr; } li div { padding-top: 0px; } blockquote { margin: 1rem 0px; } li .mathjax-block, li p { margin: 0.5rem 0px; } li blockquote { margin: 1rem 0px; } li { margin: 0px; position: relative; } blockquote > :last-child { margin-bottom: 0px; } blockquote > :first-child, li > :first-child { margin-top: 0px; } .footnotes-area { color: rgb(136, 136, 136); margin-top: 0.714rem; padding-bottom: 0.143rem; white-space: normal; } #write .footnote-line { white-space: pre-wrap; } @media print { body, html { border: 1px solid transparent; height: 99%; break-after: avoid; break-before: avoid; font-variant-ligatures: no-common-ligatures; } #write { margin-top: 0px; padding-top: 0px; border-color: transparent !important; padding-bottom: 0px !important; } .typora-export * { -webkit-print-color-adjust: exact; } .typora-export #write { break-after: avoid; } .typora-export #write::after { height: 0px; } .is-mac table { break-inside: avoid; } .typora-export-show-outline .typora-export-sidebar { display: none; } } .footnote-line { margin-top: 0.714em; font-size: 0.7em; } a img, img a { cursor: pointer; } pre.md-meta-block { font-size: 0.8rem; min-height: 0.8rem; white-space: pre-wrap; background: rgb(204, 204, 204); display: block; overflow-x: hidden; } p > .md-image:only-child:not(.md-img-error) img, p > img:only-child { display: block; margin: auto; } #write.first-line-indent p > .md-image:only-child:not(.md-img-error) img { left: -2em; position: relative; } p > .md-image:only-child { display: inline-block; width: 100%; } #write .MathJax_Display { margin: 0.8em 0px 0px; } .md-math-block { width: 100%; } .md-math-block:not(:empty)::after { display: none; } .MathJax_ref { fill: currentcolor; } [contenteditable="true"]:active, [contenteditable="true"]:focus, [contenteditable="false"]:active, [contenteditable="false"]:focus { outline: 0px; box-shadow: none; } .md-task-list-item { position: relative; list-style-type: none; } .task-list-item.md-task-list-item { padding-left: 0px; } .md-task-list-item > input { position: absolute; top: 0px; left: 0px; margin-left: -1.2em; margin-top: calc(1em - 10px); border: none; } .math { font-size: 1rem; } .md-toc { min-height: 3.58rem; position: relative; font-size: 0.9rem; border-radius: 10px; } .md-toc-content { position: relative; margin-left: 0px; } .md-toc-content::after, .md-toc::after { display: none; } .md-toc-item { display: block; color: rgb(65, 131, 196); } .md-toc-item a { text-decoration: none; } .md-toc-inner:hover { text-decoration: underline; } .md-toc-inner { display: inline-block; cursor: pointer; } .md-toc-h1 .md-toc-inner { margin-left: 0px; font-weight: 700; } .md-toc-h2 .md-toc-inner { margin-left: 2em; } .md-toc-h3 .md-toc-inner { margin-left: 4em; } .md-toc-h4 .md-toc-inner { margin-left: 6em; } .md-toc-h5 .md-toc-inner { margin-left: 8em; } .md-toc-h6 .md-toc-inner { margin-left: 10em; } @media screen and (max-width: 48em) { .md-toc-h3 .md-toc-inner { margin-left: 3.5em; } .md-toc-h4 .md-toc-inner { margin-left: 5em; } .md-toc-h5 .md-toc-inner { margin-left: 6.5em; } .md-toc-h6 .md-toc-inner { margin-left: 8em; } } a.md-toc-inner { font-size: inherit; font-style: inherit; font-weight: inherit; line-height: inherit; } .footnote-line a:not(.reversefootnote) { color: inherit; } .reversefootnote { font-family: ui-monospace, sans-serif; } .md-attr { display: none; } .md-fn-count::after { content: "."; } code, pre, samp, tt { font-family: var(--monospace); } kbd { margin: 0px 0.1em; padding: 0.1em 0.6em; font-size: 0.8em; color: rgb(36, 39, 41); background: rgb(255, 255, 255); border: 1px solid rgb(173, 179, 185); border-radius: 3px; box-shadow: rgba(12, 13, 14, 0.2) 0px 1px 0px, rgb(255, 255, 255) 0px 0px 0px 2px inset; white-space: nowrap; vertical-align: middle; } .md-comment { color: rgb(162, 127, 3); opacity: 0.6; font-family: var(--monospace); } code { text-align: left; vertical-align: initial; } a.md-print-anchor { white-space: pre !important; border-width: initial !important; border-style: none !important; border-color: initial !important; display: inline-block !important; position: absolute !important; width: 1px !important; right: 0px !important; outline: 0px !important; background: 0px 0px !important; text-decoration: initial !important; text-shadow: initial !important; } .os-windows.monocolor-emoji .md-emoji { font-family: "Segoe UI Symbol", sans-serif; } .md-diagram-panel > svg { max-width: 100%; } [lang="flow"] svg, [lang="mermaid"] svg { max-width: 100%; height: auto; } [lang="mermaid"] .node text { font-size: 1rem; } table tr th { border-bottom: 0px; } video { max-width: 100%; display: block; margin: 0px auto; } iframe { max-width: 100%; width: 100%; border: none; } .highlight td, .highlight tr { border: 0px; } mark { background: rgb(255, 255, 0); color: rgb(0, 0, 0); } .md-html-inline .md-plain, .md-html-inline strong, mark .md-inline-math, mark strong { color: inherit; } .md-expand mark .md-meta { opacity: 0.3 !important; } mark .md-meta { color: rgb(0, 0, 0); } @media print { .typora-export h1, .typora-export h2, .typora-export h3, .typora-export h4, .typora-export h5, .typora-export h6 { break-inside: avoid; } } .md-diagram-panel .messageText { stroke: none !important; } .md-diagram-panel .start-state { fill: var(--node-fill); } .md-diagram-panel .edgeLabel rect { opacity: 1 !important; } .md-fences.md-fences-math { font-size: 1em; } .md-fences-advanced:not(.md-focus) { padding: 0px; white-space: nowrap; border: 0px; } .md-fences-advanced:not(.md-focus) { background: inherit; } .typora-export-show-outline .typora-export-content { max-width: 1440px; margin: auto; display: flex; flex-direction: row; } .typora-export-sidebar { width: 300px; font-size: 0.8rem; margin-top: 80px; margin-right: 18px; } .typora-export-show-outline #write { --webkit-flex:2; flex: 2 1 0%; } .typora-export-sidebar .outline-content { position: fixed; top: 0px; max-height: 100%; overflow: hidden auto; padding-bottom: 30px; padding-top: 60px; width: 300px; } @media screen and (max-width: 1024px) { .typora-export-sidebar, .typora-export-sidebar .outline-content { width: 240px; } } @media screen and (max-width: 800px) { .typora-export-sidebar { display: none; } } .outline-content li, .outline-content ul { margin-left: 0px; margin-right: 0px; padding-left: 0px; padding-right: 0px; list-style: none; } .outline-content ul { margin-top: 0px; margin-bottom: 0px; } .outline-content strong { font-weight: 400; } .outline-expander { width: 1rem; height: 1.42857rem; position: relative; display: table-cell; vertical-align: middle; cursor: pointer; padding-left: 4px; } .outline-expander::before { content: ""; position: relative; font-family: Ionicons; display: inline-block; font-size: 8px; vertical-align: middle; } .outline-item { padding-top: 3px; padding-bottom: 3px; cursor: pointer; } .outline-expander:hover::before { content: ""; } .outline-h1 > .outline-item { padding-left: 0px; } .outline-h2 > .outline-item { padding-left: 1em; } .outline-h3 > .outline-item { padding-left: 2em; } .outline-h4 > .outline-item { padding-left: 3em; } .outline-h5 > .outline-item { padding-left: 4em; } .outline-h6 > .outline-item { padding-left: 5em; } .outline-label { cursor: pointer; display: table-cell; vertical-align: middle; text-decoration: none; color: inherit; } .outline-label:hover { text-decoration: underline; } .outline-item:hover { border-color: rgb(245, 245, 245); background-color: var(--item-hover-bg-color); } .outline-item:hover { margin-left: -28px; margin-right: -28px; border-left: 28px solid transparent; border-right: 28px solid transparent; } .outline-item-single .outline-expander::before, .outline-item-single .outline-expander:hover::before { display: none; } .outline-item-open > .outline-item > .outline-expander::before { content: ""; } .outline-children { display: none; } .info-panel-tab-wrapper { display: none; } .outline-item-open > .outline-children { display: block; } .typora-export .outline-item { padding-top: 1px; padding-bottom: 1px; } .typora-export .outline-item:hover { margin-right: -8px; border-right: 8px solid transparent; } .typora-export .outline-expander::before { content: "+"; font-family: inherit; top: -1px; } .typora-export .outline-expander:hover::before, .typora-export .outline-item-open > .outline-item > .outline-expander::before { content: "−"; } .typora-export-collapse-outline .outline-children { display: none; } .typora-export-collapse-outline .outline-item-open > .outline-children, .typora-export-no-collapse-outline .outline-children { display: block; } .typora-export-no-collapse-outline .outline-expander::before { content: "" !important; } .typora-export-show-outline .outline-item-active > .outline-item .outline-label { font-weight: 700; } .md-inline-math-container mjx-container { zoom: 0.95; } .CodeMirror { height: auto; } .CodeMirror.cm-s-inner { background: inherit; } .CodeMirror-scroll { overflow: auto hidden; z-index: 3; } .CodeMirror-gutter-filler, .CodeMirror-scrollbar-filler { background-color: rgb(255, 255, 255); } .CodeMirror-gutters { border-right: 1px solid rgb(221, 221, 221); background: inherit; white-space: nowrap; } .CodeMirror-linenumber { padding: 0px 3px 0px 5px; text-align: right; color: rgb(153, 153, 153); } .cm-s-inner .cm-keyword { color: rgb(119, 0, 136); } .cm-s-inner .cm-atom, .cm-s-inner.cm-atom { color: rgb(34, 17, 153); } .cm-s-inner .cm-number { color: rgb(17, 102, 68); } .cm-s-inner .cm-def { color: rgb(0, 0, 255); } .cm-s-inner .cm-variable { color: rgb(0, 0, 0); } .cm-s-inner .cm-variable-2 { color: rgb(0, 85, 170); } .cm-s-inner .cm-variable-3 { color: rgb(0, 136, 85); } .cm-s-inner .cm-string { color: rgb(170, 17, 17); } .cm-s-inner .cm-property { color: rgb(0, 0, 0); } .cm-s-inner .cm-operator { color: rgb(152, 26, 26); } .cm-s-inner .cm-comment, .cm-s-inner.cm-comment { color: rgb(170, 85, 0); } .cm-s-inner .cm-string-2 { color: rgb(255, 85, 0); } .cm-s-inner .cm-meta { color: rgb(85, 85, 85); } .cm-s-inner .cm-qualifier { color: rgb(85, 85, 85); } .cm-s-inner .cm-builtin { color: rgb(51, 0, 170); } .cm-s-inner .cm-bracket { color: rgb(153, 153, 119); } .cm-s-inner .cm-tag { color: rgb(17, 119, 0); } .cm-s-inner .cm-attribute { color: rgb(0, 0, 204); } .cm-s-inner .cm-header, .cm-s-inner.cm-header { color: rgb(0, 0, 255); } .cm-s-inner .cm-quote, .cm-s-inner.cm-quote { color: rgb(0, 153, 0); } .cm-s-inner .cm-hr, .cm-s-inner.cm-hr { color: rgb(153, 153, 153); } .cm-s-inner .cm-link, .cm-s-inner.cm-link { color: rgb(0, 0, 204); } .cm-negative { color: rgb(221, 68, 68); } .cm-positive { color: rgb(34, 153, 34); } .cm-header, .cm-strong { font-weight: 700; } .cm-del { text-decoration: line-through; } .cm-em { font-style: italic; } .cm-link { text-decoration: underline; } .cm-error { color: red; } .cm-invalidchar { color: red; } .cm-constant { color: rgb(38, 139, 210); } .cm-defined { color: rgb(181, 137, 0); } div.CodeMirror span.CodeMirror-matchingbracket { color: rgb(0, 255, 0); } div.CodeMirror span.CodeMirror-nonmatchingbracket { color: rgb(255, 34, 34); } .cm-s-inner .CodeMirror-activeline-background { background: inherit; } .CodeMirror { position: relative; overflow: hidden; } .CodeMirror-scroll { height: 100%; outline: 0px; position: relative; box-sizing: content-box; background: inherit; } .CodeMirror-sizer { position: relative; } .CodeMirror-gutter-filler, .CodeMirror-hscrollbar, .CodeMirror-scrollbar-filler, .CodeMirror-vscrollbar { position: absolute; z-index: 6; display: none; outline: 0px; } .CodeMirror-vscrollbar { right: 0px; top: 0px; overflow: hidden; } .CodeMirror-hscrollbar { bottom: 0px; left: 0px; overflow: auto hidden; } .CodeMirror-scrollbar-filler { right: 0px; bottom: 0px; } .CodeMirror-gutter-filler { left: 0px; bottom: 0px; } .CodeMirror-gutters { position: absolute; left: 0px; top: 0px; padding-bottom: 10px; z-index: 3; overflow-y: hidden; } .CodeMirror-gutter { white-space: normal; height: 100%; box-sizing: content-box; padding-bottom: 30px; margin-bottom: -32px; display: inline-block; } .CodeMirror-gutter-wrapper { position: absolute; z-index: 4; background: 0px 0px !important; border: none !important; } .CodeMirror-gutter-background { position: absolute; top: 0px; bottom: 0px; z-index: 4; } .CodeMirror-gutter-elt { position: absolute; cursor: default; z-index: 4; } .CodeMirror-lines { cursor: text; } .CodeMirror pre { border-radius: 0px; border-width: 0px; background: 0px 0px; font-family: inherit; font-size: inherit; margin: 0px; white-space: pre; overflow-wrap: normal; color: inherit; z-index: 2; position: relative; overflow: visible; } .CodeMirror-wrap pre { overflow-wrap: break-word; white-space: pre-wrap; word-break: normal; } .CodeMirror-code pre { border-right: 30px solid transparent; width: fit-content; } .CodeMirror-wrap .CodeMirror-code pre { border-right: none; width: auto; } .CodeMirror-linebackground { position: absolute; inset: 0px; z-index: 0; } .CodeMirror-linewidget { position: relative; z-index: 2; overflow: auto; } .CodeMirror-wrap .CodeMirror-scroll { overflow-x: hidden; } .CodeMirror-measure { position: absolute; width: 100%; height: 0px; overflow: hidden; visibility: hidden; } .CodeMirror-measure pre { position: static; } .CodeMirror div.CodeMirror-cursor { position: absolute; visibility: hidden; border-right: none; width: 0px; } .CodeMirror div.CodeMirror-cursor { visibility: hidden; } .CodeMirror-focused div.CodeMirror-cursor { visibility: inherit; } .cm-searching { background: rgba(255, 255, 0, 0.4); } span.cm-underlined { text-decoration: underline; } span.cm-strikethrough { text-decoration: line-through; } .cm-tw-syntaxerror { color: rgb(255, 255, 255); background-color: rgb(153, 0, 0); } .cm-tw-deleted { text-decoration: line-through; } .cm-tw-header5 { font-weight: 700; } .cm-tw-listitem:first-child { padding-left: 10px; } .cm-tw-box { border-style: solid; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px; border-color: inherit; border-top-width: 0px !important; } .cm-tw-underline { text-decoration: underline; } @media print { .CodeMirror div.CodeMirror-cursor { visibility: hidden; } } :root { --side-bar-bg-color: #fafafa; --control-text-color: #777; } @include-when-export url(https://fonts.loli.net/css?family=Open+Sans:400italic,700italic,700,400&subset=latin,latin-ext); /* open-sans-regular - latin-ext_latin */ /* open-sans-italic - latin-ext_latin */ /* open-sans-700 - latin-ext_latin */ /* open-sans-700italic - latin-ext_latin */ html { font-size: 16px; -webkit-font-smoothing: antialiased; } body { font-family: "Open Sans","Clear Sans", "Helvetica Neue", Helvetica, Arial, 'Segoe UI Emoji', sans-serif; color: rgb(51, 51, 51); line-height: 1.6; } #write { max-width: 860px; margin: 0 auto; padding: 30px; padding-bottom: 100px; } @media only screen and (min-width: 1400px) { #write { max-width: 1024px; } } @media only screen and (min-width: 1800px) { #write { max-width: 1200px; } } #write > ul:first-child, #write > ol:first-child{ margin-top: 30px; } a { color: #4183C4; } h1, h2, h3, h4, h5, h6 { position: relative; margin-top: 1rem; margin-bottom: 1rem; font-weight: bold; line-height: 1.4; cursor: text; } h1:hover a.anchor, h2:hover a.anchor, h3:hover a.anchor, h4:hover a.anchor, h5:hover a.anchor, h6:hover a.anchor { text-decoration: none; } h1 tt, h1 code { font-size: inherit; } h2 tt, h2 code { font-size: inherit; } h3 tt, h3 code { font-size: inherit; } h4 tt, h4 code { font-size: inherit; } h5 tt, h5 code { font-size: inherit; } h6 tt, h6 code { font-size: inherit; 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} 新建 文本文档 1.基础配置除非硬盘够自信，不要分var分区创建4h-12g-100G的controller节点修改外部网卡ONBOOT="yes"BOOTPROTO="static"IPADDR="172.16.1.198"NETMASK="255.255.255.0"GATEWAY="172.16.1.1"DNS1="114.114.114.114"修改仅主机网卡xxxxxxxxxxONBOOT="yes"BOOTPROTO="static"IPADDR=10.10.42.198NETMASK=255.255.255.0DNS1=114.114.114.114修改主机名xxxxxxxxxxhostnamectl set-hostname controllerbash关闭控制节点的防火墙，设置开机不启动xxxxxxxxxxsystemctl stop firewalld && systemctl disable firewalld设置SELinux为Permissive 模式xxxxxxxxxxsed -i 's/enforcing/disabled/g' /etc/selinux/configsetenforce 0getenforce写入/etc/hostsxxxxxxxxxxecho 172.16.1.198 controller >> /etc/hostsecho 10.10.42.198 controller >> /etc/hostsecho 172.16.1.199 compute >> /etc/hostsecho 10.10.42.199 compute >> /etc/hostscat /etc/hosts配置yum源​xmv /etc/yum.repos.d/* /var [root@controller ~]# cat > /etc/yum.repos.d/http.repo << EOF> [centos]> name=centos> baseurl=ftp://172.16.1.252/centos/> gpgcheck=0> enable=1> > [iaas]> name=iaas> baseurl=ftp://172.16.1.252/iaas/iaas-repo/> gpgcheck=0> enable=1> > EOF cat /etc/yum.repos.d/http.repo yum clean all && yum repolist && yum list配置时间同步xxxxxxxxxxyum install -y chronyvi /etc/chrony.conf #server 0.centos.pool.ntp.org iburst#server 1.centos.pool.ntp.org iburst#server 2.centos.pool.ntp.org iburst#server 3.centos.pool.ntp.org iburstserver controller iburstallow 10.10.42.0/24local stratum 10 systemctl restart chronyd && systemctl enable chronyd创建4h-8g-100g-50g的compute节点修改外部网卡xxxxxxxxxxONBOOT="yes"BOOTPROTO="static"IPADDR="172.16.1.199"NETMASK="255.255.255.0"GATEWAY="172.16.1.1"DNS1="114.114.114.114"修改仅主机网卡xxxxxxxxxxONBOOT="yes"BOOTPROTO="static"IPADDR=10.10.42.199NETMASK=255.255.255.0DNS1=114.114.114.114修改主机名xxxxxxxxxxhostnamectl set-hostname computebash关闭控制节点的防火墙，设置开机不启动xxxxxxxxxxsystemctl stop firewalld && systemctl disable firewalld设置SELinux为Permissive 模式xxxxxxxxxxsed -i 's/enforcing/disabled/g' /etc/selinux/configsetenforce 0getenforce写入/etc/hostsxxxxxxxxxxecho 172.16.1.198 controller >> /etc/hostsecho 10.10.42.198 controller >> /etc/hostsecho 172.16.1.199 compute >> /etc/hostsecho 10.10.42.199 compute >> /etc/hostscat /etc/hosts配置yum源xxxxxxxxxxmv /etc/yum.repos.d/* /var [root@compute ~]# cat > /etc/yum.repos.d/http.repo << EOF> [centos]> name=centos> baseurl=ftp://172.16.1.252/centos/> gpgcheck=0> enable=1> > [iaas]> name=iaas> baseurl=ftp://172.16.1.252/iaas/iaas-repo/> gpgcheck=0> enable=1> > EOF cat /etc/yum.repos.d/http.repo yum clean all && yum repolist && yum list配置时间同步xxxxxxxxxxyum install -y chronyvi /etc/chrony.conf #server 0.centos.pool.ntp.org iburst#server 1.centos.pool.ntp.org iburst#server 2.centos.pool.ntp.org iburst#server 3.centos.pool.ntp.org iburstserver controller iburst systemctl restart chronyd && systemctl enable chronyd利用空白硬盘分区xxxxxxxxxx[root@compute ~]# lsblk NAME           MAJ:MIN RM SIZE RO TYPE MOUNTPOINTfd0               2:0    1   4K  0 disk sr0              11:0    1  4.2G  0 rom  vda             252:0    0 100G  0 disk ├─vda1          252:1    0   1G  0 part /boot└─vda2          252:2    0   99G  0 part ├─centos-root 253:0    0   92G  0 lvm / ├─centos-swap 253:1    0   1G  0 lvm [SWAP] ├─centos-var  253:2    0   5G  0 lvm /var └─centos-home 253:3    0   1G  0 lvm /homevdb             252:16   0   50G  0 disk [root@compute ~]# parted /dev/vdbGNU Parted 3.1Using /dev/vdbWelcome to GNU Parted! Type 'help' to view a list of commands.(parted) mklabel gptWarning: The existing disk label on /dev/vdb will be destroyed and all data on this disk will be lost.Do you want to continue?Yes/No? yes                                                               (parted) mkpart swiftFile system type? [ext2]?                                                Start? 0                                                                  End? 20Gib                                                                Warning: The resulting partition is not properly aligned for best performance.Ignore/Cancel? I                                                          (parted) mkpart swift1File system type? [ext2]?                                                Start? 20Gib                                                              End? 40Gib                                                                (parted) q                                                                Information: You may need to update /etc/fstab. [root@compute ~]# lsblk                                                   NAME           MAJ:MIN RM SIZE RO TYPE MOUNTPOINTfd0               2:0    1   4K  0 disk sr0              11:0    1  4.2G  0 rom  vda             252:0    0 100G  0 disk ├─vda1          252:1    0   1G  0 part /boot└─vda2          252:2    0   99G  0 part ├─centos-root 253:0    0   92G  0 lvm / ├─centos-swap 253:1    0   1G  0 lvm [SWAP] ├─centos-var  253:2    0   5G  0 lvm /var └─centos-home 253:3    0   1G  0 lvm /homevdb             252:16   0   50G  0 disk ├─vdb1          252:17   0   20G  0 part └─vdb2          252:18   0   20G  0 part mkfs.xfs /dev/vdb1mkfs.xfs /dev/vdb2 2.openstack搭建1.安装iaas软件包并且修改配置xxxxxxxxxxyum install -y iaas-xiandianvim /etc/xiandian/openrc.shcontrollerxxxxxxxxxx[root@controller ~]# cat /etc/xiandian/openrc.sh | egrep -v '(^#|^$)'HOST_IP=172.16.1.198HOST_PASS=000000HOST_NAME=controllerHOST_IP_NODE=172.16.1.199HOST_PASS_NODE=000000HOST_NAME_NODE=computenetwork_segment_IP=172.16.1.0/24RABBIT_USER=openstackRABBIT_PASS=000000DB_PASS=000000DOMAIN_NAME=demoADMIN_PASS=000000DEMO_PASS=000000KEYSTONE_DBPASS=000000GLANCE_DBPASS=000000GLANCE_PASS=000000NOVA_DBPASS=000000NOVA_PASS=000000NEUTRON_DBPASS=000000NEUTRON_PASS=000000METADATA_SECRET=000000INTERFACE_IP=172.16.1.198INTERFACE_NAME=eth0Physical_NAME=providerminvlan=101maxvlan=200CINDER_DBPASS=000000CINDER_PASS=000000BLOCK_DISK=vdb1SWIFT_PASS=000000OBJECT_DISK=vdb2STORAGE_LOCAL_NET_IP=172.16.1.199HEAT_DBPASS=000000HEAT_PASS=000000ZUN_DBPASS=000000ZUN_PASS=000000KURYR_DBPASS=000000KURYR_PASS=000000CEILOMETER_DBPASS=000000CEILOMETER_PASS=000000AODH_DBPASS=000000AODH_PASS=000000BARBICAN_DBPASS=000000BARBICAN_PASS=000000computexxxxxxxxxx[root@compute ~]# cat /etc/xiandian/openrc.sh | egrep -v '(^#|^$)'HOST_IP=172.16.1.198HOST_PASS=000000HOST_NAME=controllerHOST_IP_NODE=172.16.1.199HOST_PASS_NODE=000000HOST_NAME_NODE=computenetwork_segment_IP=172.16.1.0/24RABBIT_USER=openstackRABBIT_PASS=000000DB_PASS=000000DOMAIN_NAME=demoADMIN_PASS=000000DEMO_PASS=000000KEYSTONE_DBPASS=000000GLANCE_DBPASS=000000GLANCE_PASS=000000NOVA_DBPASS=000000NOVA_PASS=000000NEUTRON_DBPASS=000000NEUTRON_PASS=000000METADATA_SECRET=000000INTERFACE_IP=172.16.1.199INTERFACE_NAME=eth0Physical_NAME=providerminvlan=101maxvlan=200CINDER_DBPASS=000000CINDER_PASS=000000BLOCK_DISK=vdb1SWIFT_PASS=000000OBJECT_DISK=vdb2STORAGE_LOCAL_NET_IP=172.16.1.199HEAT_DBPASS=000000HEAT_PASS=000000ZUN_DBPASS=000000ZUN_PASS=000000KURYR_DBPASS=000000KURYR_PASS=000000CEILOMETER_DBPASS=000000CEILOMETER_PASS=000000AODH_DBPASS=000000AODH_PASS=000000BARBICAN_DBPASS=000000BARBICAN_PASS=000000controller和compute安装重启xxxxxxxxxxiaas-pre-host.shreboot2.数据库安装controller在运行脚本xxxxxxxxxxiaas-install-mysql.sh 安装完后登入数据库中创建chinaskilldb库，在chinaskilldb库中创建表testable (id int not null primary key,Teamname varchar(50), remarks varchar(255))，在表中插入记录(1,“cloud”,“chinaskill”)xxxxxxxxxxmysql -u root -p000000 create database chinaskilldb; use chinaskilldb;create table testable (id int not null primary key,Teamname varchar(50), remarks varchar(255)); insert into testable values(1,'cloud','chinaskill')将memcached的缓存大小从64Mib改成256Mibxxxxxxxxxxsed -i 's/64/256/g' /etc/sysconfig/memcached 使用rabbitmq命令 创建用户，并设置Administrators限权xxxxxxxxxxrabbitmqctl set_permissions chinaskill ".*" ".*" ".*"3.安装keystonecontroller运行脚本安装xxxxxxxxxxiaas-install-keystone.sh 创建一个用户xxxxxxxxxx[root@controller images]# source /etc/keystone/admin-openrc.sh[root@controller images]# openstack user create --domain demo --password 000000 china+---------------------+----------------------------------+| Field               | Value                           |+---------------------+----------------------------------+| domain_id           | 226029b5aac74ce795fca3dd48e8e10c || enabled             | True                             || id                 | e2db6597ae2c463185035d4a4bb2ab29 || name               | china                           || options             | {}                               || password_expires_at | None                             |+---------------------+----------------------------------+4.安装Glancecontroller运行脚本安装xxxxxxxxxxiaas-install-glance.sh上传镜像xxxxxxxxxx[root@controller images]# source /etc/keystone/admin-openrc.sh [root@controller images]# glance image-create --name cirros --disk-format qcow2 --container bare --progress < CentOS_7.5_x86_64_XD.qcow2 [=============================>] 100%+------------------+--------------------------------------+| Property         | Value                               |+------------------+--------------------------------------+| checksum         | 3d3e9c954351a4b6953fd156f0c29f5c     || container_format | bare                                 || created_at       | 2021-11-29T11:02:21Z                 || disk_format     | qcow2                               || id               | 2c659c04-6463-4888-ab21-e052f48d90e1 || min_disk         | 0                                   || min_ram         | 0                                   || name             | cirros                               || owner           | 6ed09fd59a174bb5a019b2434b7b3fc2     || protected       | False                               || size             | 510459904                           || status           | active                               || tags             | []                                   || updated_at       | 2021-11-29T11:02:23Z                 || virtual_size     | None                                 || visibility       | shared                               |+------------------+--------------------------------------+ 5.安装novacontrollerxxxxxxxxxxiaas-install-nova-controller.shcomputexxxxxxxxxxiaas-install-nova-compute.sh创建一个实例xxxxxxxxxx[root@controller ~]# source /etc/keystone/admin-openrc.sh [root@controller ~]# openstack flavor create --id 1 --disk 20 --ram 1024 test+----------------------------+-------+| Field                     | Value |+----------------------------+-------+| OS-FLV-DISABLED:disabled   | False || OS-FLV-EXT-DATA:ephemeral | 0     || disk                       | 20   || id                         | 1     || name                       | test || os-flavor-access:is_public | True || properties                 |       || ram                       | 1024 || rxtx_factor               | 1.0   || swap                       |       || vcpus                     | 1     |+----------------------------+-------+ 6.安装Neutroncontrollerxxxxxxxxxxiaas-install-neutron-controller.shcomputexxxxxxxxxxiaas-install-neutron-compute.sh创建云主机网络extnet，子网extsubnet，虚拟机网段为192.168.y.0/24（其中y是vlan号）， 网关为192.168.y.1。xxxxxxxxxx[root@controller ~]# source /etc/keystone/admin-openrc.sh [root@controller ~]# openstack network create --share --external --provider-physical-network provider --provider-network-type vlan extnet+---------------------------+--------------------------------------+| Field                     | Value                               |+---------------------------+--------------------------------------+| admin_state_up           | UP                                   || availability_zone_hints   |                                     || availability_zones       |                                     || created_at               | 2021-11-29T11:17:41Z                 || description               |                                     || dns_domain               | None                                 || id                       | 97806bba-23b3-420f-ad98-05e800bd3e54 || ipv4_address_scope       | None                                 || ipv6_address_scope       | None                                 || is_default               | False                               || is_vlan_transparent       | None                                 || mtu                       | 1500                                 || name                     | extnet                               || port_security_enabled     | True                                 || project_id               | 6ed09fd59a174bb5a019b2434b7b3fc2     || provider:network_type     | vlan                                 || provider:physical_network | provider                             || provider:segmentation_id | 116                                 || qos_policy_id             | None                                 || revision_number           | 5                                   || router:external           | External                             || segments                 | None                                 || shared                   | True                                 || status                   | ACTIVE                               || subnets                   |                                     || tags                     |                                     || updated_at               | 2021-11-29T11:17:41Z                 |+---------------------------+--------------------------------------+[root@controller ~]# openstack subnet create --network extnet --gateway=10.10.42.1 --subnet-range 10.10.42.0/24 extsubnet+-------------------+--------------------------------------+| Field             | Value                               |+-------------------+--------------------------------------+| allocation_pools | 10.10.42.2-10.10.42.254             || cidr             | 10.10.42.0/24                       || created_at       | 2021-11-29T11:20:18Z                 || description       |                                     || dns_nameservers   |                                     || enable_dhcp       | True                                 || gateway_ip       | 10.10.42.1                           || host_routes       |                                     || id               | 03e202b2-f35b-4db5-aac8-06e27107ff65 || ip_version       | 4                                   || ipv6_address_mode | None                                 || ipv6_ra_mode     | None                                 || name             | extsubnet                           || network_id       | 97806bba-23b3-420f-ad98-05e800bd3e54 || project_id       | 6ed09fd59a174bb5a019b2434b7b3fc2     || revision_number   | 0                                   || segment_id       | None                                 || service_types     |                                     || subnetpool_id     | None                                 || tags             |                                     || updated_at       | 2021-11-29T11:20:18Z                 |+-------------------+--------------------------------------+7.安装Dashboardcontrollerxxxxxxxxxxiaas-install-dashboard.sh打开网页访问http://controller/dashboard/Domain:demo用户名:admin密码:000000创建云主机xxxxxxxxxx[root@controller ~]# source /etc/keystone/admin-openrc.sh [root@controller ~]# openstack image create --disk-format qcow2 --file /opt/images/CentOS_7.5_x86_64_XD.qcow2 centos7+------------------+------------------------------------------------------+| Field           | Value                                               |+------------------+------------------------------------------------------+| checksum         | 3d3e9c954351a4b6953fd156f0c29f5c                     || container_format | bare                                                 || created_at       | 2021-11-29T11:41:29Z                                 || disk_format     | qcow2                                               || file             | /v2/images/89e6e0b5-b4a3-4307-ad39-2a3db3a486c7/file || id               | 89e6e0b5-b4a3-4307-ad39-2a3db3a486c7                 || min_disk         | 0                                                   || min_ram         | 0                                                   || name             | centos7                                             || owner           | 6ed09fd59a174bb5a019b2434b7b3fc2                     || protected       | False                                               || schema           | /v2/schemas/image                                   || size             | 510459904                                           || status           | active                                               || tags             |                                                     || updated_at       | 2021-11-29T11:41:31Z                                 || virtual_size     | None                                                 || visibility       | shared                                               |+------------------+------------------------------------------------------+[root@controller ~]# openstack flavor create --disk 20 --ram 1024 --vcpus 1 centos+----------------------------+--------------------------------------+| Field                     | Value                               |+----------------------------+--------------------------------------+| OS-FLV-DISABLED:disabled   | False                               || OS-FLV-EXT-DATA:ephemeral | 0                                   || disk                       | 20                                   || id                         | 4d8699e5-69ce-4469-803c-caf1d6331d96 || name                       | centos                               || os-flavor-access:is_public | True                                 || properties                 |                                     || ram                       | 1024                                 || rxtx_factor               | 1.0                                 || swap                       |                                     || vcpus                     | 1                                   |+----------------------------+--------------------------------------+  8.安装Cindercontrollerxxxxxxxxxxiaas-install-cinder-controller.shcomputexxxxxxxxxxiaas-install-cinder-compute.sh创建一个新的卷xxxxxxxxxx[root@controller nova]# source /etc/keystone/admin-openrc.sh [root@controller nova]# cinder create --display-name myVolume 1+--------------------------------+--------------------------------------+| Property                       | Value                               |+--------------------------------+--------------------------------------+| attachments                   | []                                   || availability_zone             | nova                                 || bootable                       | false                               || consistencygroup_id           | None                                 || created_at                     | 2021-11-30T06:34:47.000000           || description                   | None                                 || encrypted                     | False                               || id                             | f9f53265-6359-4cd6-91c2-83fb3f37c3ac || metadata                       | {}                                   || migration_status               | None                                 || multiattach                   | False                               || name                           | myVolume                             || os-vol-host-attr:host         | None                                 || os-vol-mig-status-attr:migstat | None                                 || os-vol-mig-status-attr:name_id | None                                 || os-vol-tenant-attr:tenant_id   | db2a714c481643e5ad18a30967c243aa     || replication_status             | None                                 || size                           | 1                                   || snapshot_id                   | None                                 || source_volid                   | None                                 || status                         | creating                             || updated_at                     | None                                 || user_id                       | 6f8df1b85e2140d58fc80693720f6e95     || volume_type                   | None                                 |+--------------------------------+--------------------------------------+[root@controller nova]# cinder list+--------------------------------------+-----------+----------+------+-------------+----------+-------------+| ID                                   | Status   | Name     | Size | Volume Type | Bootable | Attached to |+--------------------------------------+-----------+----------+------+-------------+----------+-------------+| f9f53265-6359-4cd6-91c2-83fb3f37c3ac | available | myVolume | 1   | -           | false   |             |+--------------------------------------+-----------+----------+------+-------------+----------+-------------+ 9.安装swiftcontrollerxxxxxxxxxxiaas-install-swift-controller.shcomputexxxxxxxxxxiaas-install-swift-compute.sh 10.安装Heat编配服务controllerxxxxxxxxxxiaas-install-heat.sh 11.安装Zun服务controllerxxxxxxxxxxiaas-install-zun-controller.shcomputexxxxxxxxxxiaas-install-zun-compute.sh上传docker镜像CentOS7_1804.tar到glance，并且通过docker镜像启动容器xxxxxxxxxx[root@controller images]# lsCentOS_6.5_x86_64_XD.qcow2 CentOS7_1804.tar CentOS_7.2_x86_64_XD.qcow2 CentOS_7.5_x86_64_XD.qcow2[root@controller images]# source /etc/keystone/admin-openrc.sh[root@controller images]# openstack image create --file ./CentOS7_1804.tar --disk-format raw --public --container-format docker "centos_docker"+------------------+------------------------------------------------------+| Field           | Value                                               |+------------------+------------------------------------------------------+| checksum         | 438e76cdb677a3ab1156e284f58aa366                     || container_format | docker                                               || created_at       | 2021-11-30T07:02:14Z                                 || disk_format     | raw                                                 || file             | /v2/images/522259d3-20de-4f58-87ec-1422c87e6fe6/file || id               | 522259d3-20de-4f58-87ec-1422c87e6fe6                 || min_disk         | 0                                                   || min_ram         | 0                                                   || name             | centos_docker                                       || owner           | db2a714c481643e5ad18a30967c243aa                     || protected       | False                                               || schema           | /v2/schemas/image                                   || size             | 381696512                                           || status           | active                                               || tags             |                                                     || updated_at       | 2021-11-30T07:02:16Z                                 || virtual_size     | None                                                 || visibility       | public                                               |+------------------+------------------------------------------------------+[root@controller images]# zun run --image-driver glance centos_docker[root@controller images]# zun list+--------------------------------------+--------------------+---------------+---------+------------+----------------+-------+| uuid                                 | name               | image         | status | task_state | addresses     | ports |+--------------------------------------+--------------------+---------------+---------+------------+----------------+-------+| ed1334ce-448b-4645-9d27-05e24259c171 | sigma-23-container | centos_docker | Running | None       | 192.168.100.22 | [22] |+--------------------------------------+--------------------+---------------+---------+------------+----------------+-------+ 12.安装Ceilometer 监控服务controllerxxxxxxxxxxiaas-install-ceilometer-controller.shcomputexxxxxxxxxxiaas-install-ceilometer-compute.sh 13.安装Aodh监控服务controllerxxxxxxxxxxiaas-install-aodh.sh 14.添加控制节点资源到云平台controller修改openrc.shxxxxxxxxxx旧HOST_IP_NODE=172.16.1.199HOST_NAME_NODE=compute 新HOST_IP_NODE=172.16.1.198HOST_NAME_NODE=controllerxxxxxxxxxxiaas-install-nova-compute.sh执行过程中需要确认登录controller节点和输入controller节点root用户密码