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<title> [筆記] Ansible how to use 'list' in yaml file | MCの飄狂山莊㊣</title>
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<h3 class="title"><a href="/">MCの飄狂山莊㊣</a></h3>
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<h3><a href="/post/ansible-selectattr/">[筆記] Ansible how to use 'list' in yaml file </a></h3>
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<div class="meta">
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<span class="date moment">2018-11-27</span>
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<a href="/categories/%E7%AD%86%E8%A8%98">筆記</a>
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</span>
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<span class="author"><a href="/author/eric-chang">Eric Chang</a></span>
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</div>
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<p>這幾天在玩ansible 時，碰到一個問題</p>
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<p>假如我有個yaml檔作為資料來源，檔名是 abc.yml</p>
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<p>大概長這樣</p>
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<pre><code> "teams": [
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{
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"chinese_name": "TEAM1",
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"description": "TEAM1",
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"gid": 10125,
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"location": [
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"hq"
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],
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"name": "aa",
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"users": [
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"chen",
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"chou",
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"huani",
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"yey",
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"wa"
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]
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},
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{
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"chinese_name": "TEAM2",
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"description": "TEAM2",
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"gid": 10126,
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"location": [
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"hq"
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],
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"name": "bb",
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"users": [
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"chhiao",
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"chgc",
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"chy",
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"hsi",
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"li",
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"li",
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"chgchi"
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]
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}
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]
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</code></pre>
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<p></p>
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<p>稍微整理一下，比較容易看</p>
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<pre><code> "teams": [
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{
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"chinese_name": "TEAM1",
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"description": "TEAM1",
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"gid": 10125,
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"location": ["hq"],
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"name": "aa",
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"users": ["chen","chou","huani","yey","wa"]
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},
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{
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"chinese_name": "TEAM2",
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"description": "TEAM2",
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"gid": 10126,
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"location": ["hq"],
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"name": "bb",
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"users": ["chhiao","chgc","chy","hsi","li","chgchi"]
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}
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]
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</code></pre>
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<p>在 ansible playbook 中，我用 include_vars 把這個檔案叫進來</p>
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<pre><code>- name: load teams.yml
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tags: env
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include_vars:
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file: files/konwen/teams.yml
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</code></pre>
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<p>這時候在這個執行階段，就會有一個變數叫 teams 裡面有 chinese_name/description/gid 等等這些屬性</p>
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<p>其中的 location/users 又是另外一個 list</p>
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<p>那如果我想要用users這個清單中的id作為建立帳號的來源</p>
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<p>我就可以用底下這段，先把 users 裡面的內容，指給 dc_users 這個 localvar</p>
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<p>然後加上 when 的條件，限定只有 name == aa 的 users 才會被指定給 dc_users</p>
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<pre><code>- name: set aa_users
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tags: env
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set_fact:
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aa_users: "{{ item.users }}"
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when: item.name == 'aa'
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with_items: "{{ teams }}"
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</code></pre>
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<p>這樣子執行下來是沒有問題的，不過就是醜了點 XD</p>
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<p>之後要抓 user 帳號時，就可以直接用 aa_users 來跑迴圈</p>
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<pre><code>- name: create folder for aa_users
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tags: env
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file:
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path: "/tmp/{{ item }}"
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owner: "{{ item }}"
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group: "{{ item }}"
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state: directory
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with_items: "{{ aa_users }}"
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</code></pre>
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<p>很簡單的概念，因為一開始在 teams 這個 var 裡面</p>
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<p>users 這個屬性是一個 list</p>
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<p>p.s 講話一定要參雜用英文單字，這樣看起來比較屌…</p>
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<p>所以沒辦法直接在底下的create folder task 直接叫出來</p>
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<p>如果直接叫 teams.users ，那會是一個清單</p>
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<pre><code> ["chen","chou","huani","yey","wa"]
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</code></pre>
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<p>然後 ansible 也很厲害，就這個樣子，他還是會去忠實的執行建立目錄</p>
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<p>所以在 /tmp 底下就會多出一個</p>
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<blockquote>
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<p>[“chen”,“chou”,“huani”,“yey”,“wa”]</p>
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</blockquote>
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<p>這個樣子的目錄 ….</p>
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<p>所以我的處理方式就是先把這個清單丟給一個local變數 ( aa_users )</p>
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<p>後面的task再用這個 {{ aa_users }} 來跑，這樣子就 OK 了</p>
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<p>雖說很簡單，但是卡了我一整天吶…</p>
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by Lednerb
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</a>
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</div>
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<div class="author">
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<a href="https://www.yapee.tw/mvc/onlinePay/webLink?key=lMC74kucH21JChCR77-wJ80ZZ-Poh11amP24BwiDdHw" target="_blank">Bilberry Hugo Theme</a>
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</div>
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</div>
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</div>
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<script type="application/javascript">
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var doNotTrack = false;
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if (!doNotTrack) {
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window.ga=window.ga||function(){(ga.q=ga.q||[]).push(arguments)};ga.l=+new Date;
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ga('create', 'UA-138954876-1', 'auto');
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ga('send', 'pageview');
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}
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</script>
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<script async src='https://www.google-analytics.com/analytics.js'></script>
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<script type="text/javascript" src="https://h.cowbay.org/js/externalDependencies.39c47e10e241eae2947b3fe21809c572.js" integrity="md5-OcR+EOJB6uKUez/iGAnFcg=="></script>
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<script type="text/javascript" src="https://h.cowbay.org/js/theme.ff50ae6dc1bfc220b23bf69dbb41b54e.js" integrity="md5-/1CubcG/wiCyO/adu0G1Tg=="></script>
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<script>
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$(".moment").each(function() {
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$(this).text(
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moment( $(this).text() )
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.locale( "tw" )
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.format('LL')
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);
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});
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$(".footnote-return sup").html("");
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</script>
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<script>
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var client = algoliasearch("2XL0P8XDCY", "4ef65b37b627bb886b46c34a10e63aa6");
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var index = client.initIndex("h_cowbay_org");
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$('#search').autocomplete({ hint: false, autoselect: true, debug: false },
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[
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{
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source: $.fn.autocomplete.sources.hits(index, { hitsPerPage: 10 }),
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displayKey: function(suggestion) {
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return suggestion.title || suggestion.author
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},
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templates: {
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suggestion: function(suggestion) {
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return "<span class='entry " + suggestion.type + "'>"
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+ "<span class='title'>" + suggestion.title + "</span>"
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+ "<span class='fa fa-fw " + suggestion.iconClass + "'></span>"
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+ "</span>"
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;
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},
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empty: function() {
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return "<span class='empty'></span>"
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},
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footer: function() {
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return '<div class="branding">Powered by <img src="https:\/\/h.cowbay.org\/dist\/algolia-logo-light.svg" /></div>'
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}
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},
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}
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])
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.on('autocomplete:selected', function(event, suggestion, dataset) {
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window.location = (suggestion.url);
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})
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.keypress(function (event, suggestion) {
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if (event.which == 13) {
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window.location = (suggestion.url);
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}
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});
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</script>
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</body>
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</html>
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