add auto fetch ssl certs
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@@ -13,7 +13,7 @@
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"articleSection" : "post",
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"name" : "[筆記]在ansible中,取得loop register後的值\/ Ansible Get Value From Loop Register",
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"headline" : "[筆記]在ansible中,取得loop register後的值\/ Ansible Get Value From Loop Register",
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"description" : "\x3cp\x3e今天在寫一支客製化 firefox 的playbook\x3c\/p\x3e\n\n\x3cp\x3e因為firefox 會給每個user 建立一個由亂數字串組成的default profile\x3c\/p\x3e\n\n\x3cp\x3e所以每個user的 default profile 都不同\x3c\/p\x3e\n\n\x3cp\x3e也因此在用register處理的時候,碰到了一些問題\x3c\/p\x3e",
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"description" : "\x3cp\x3e今天在寫一支客製化 firefox 的playbook\x3c\/p\x3e\n\x3cp\x3e因為firefox 會給每個user 建立一個由亂數字串組成的default profile\x3c\/p\x3e\n\x3cp\x3e所以每個user的 default profile 都不同\x3c\/p\x3e\n\x3cp\x3e也因此在用register處理的時候,碰到了一些問題\x3c\/p\x3e",
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"inLanguage" : "en",
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"author" : "Eric Chang",
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"creator" : "Eric Chang",
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@@ -45,9 +45,9 @@
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@@ -81,10 +81,6 @@ if (!doNotTrack) {
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<ul id="menu-secondary-items" class="menu-secondary-items">
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<a href="/categories/ansible">ansible</a>
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</li>
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@@ -309,39 +305,24 @@ if (!doNotTrack) {
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<div class="entry-content">
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<article>
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<p>今天在寫一支客製化 firefox 的playbook</p>
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<p>因為firefox 會給每個user 建立一個由亂數字串組成的default profile</p>
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<p>所以每個user的 default profile 都不同</p>
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<p>也因此在用register處理的時候,碰到了一些問題</p>
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<h3 id="task-內容">TASK 內容</h3>
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<p>其實task 內容沒有很複雜,簡單來說,就是先檢查user的 firefox profile 目錄</p>
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<p>如果存在就pass,如果不存在就幫user建立</p>
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<pre><code>- name: check if user profile exists
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become_user: "{{ item.name }}"
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stat:
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path: "{{ firefox_home }}"
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register: profile_exists
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with_items: "{{ users }}"
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</code></pre>
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<p>但是在接下來的task在執行的時候,碰到了問題</p>
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</code></pre><p>但是在接下來的task在執行的時候,碰到了問題</p>
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<p>ansible 提示說profile_exists 沒有 stat 屬性</p>
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<p>用過 stat module 的,應該都知道結果會是 var_name.stat.xxxx 這樣的用法</p>
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<p>所以可以肯定的是 stat 這個屬性一定在</p>
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<p>可是也一定有什麼問題,造成取不到值</p>
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<p>當然就是先debug 來看看(有些不重要的屬性,我就先拿掉了)</p>
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<pre><code>ok: [hqdc075] => {
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"profile_exists": {
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"changed": false,
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@@ -402,40 +383,24 @@ if (!doNotTrack) {
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"exists": false,
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}
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},
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</code></pre>
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<p>一開始是先注意到了為什麼裡面還有 item ?</p>
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</code></pre><p>一開始是先注意到了為什麼裡面還有 item ?</p>
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<p>再往上看,就發現多了一個 results 把原本的list 清單給包起來了</p>
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<p>所以原本用 profile_exists.stat.exists 可以取得目錄是否存在(true/false)</p>
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<p>但是現在因為多了一層 results ,所以變成取不到值</p>
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<p>沒關係,既然知道了有多了一層 results ,那就知道要怎麼做了</p>
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<h3 id="修正後續task">修正後續task</h3>
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<p>後面的task 稍微改一下,在指定 with_items 的時候,直接指定 profile_exists.results</p>
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<p>接下來的用法就比較簡單了,跟原本接stat 變數的語法差不多</p>
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<pre><code>- name: run firefox to create default profile
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become_user: "{{ item.item.name }}"
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shell: "firefox --headless &"
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ignore_errors: True
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when: item.stat.exists == false
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with_items: "{{ profile_exists.results }}"
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</code></pre>
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<p>透過這次的playbook 又知道了怎麼承接 loop register 跑出來的值,又學了一課</p>
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</code></pre><p>透過這次的playbook 又知道了怎麼承接 loop register 跑出來的值,又學了一課</p>
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<p>本來一開始的想法是register dynamic variable name</p>
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<p>像是 a_exist,b_exist,c_exist 這樣</p>
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<p>不過ansible 不這樣處理,會自動的把所有結果都包在一個 results list 裡面</p>
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<p>也算是還滿好用的啦</p>
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</article>
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</div>
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@@ -711,7 +676,7 @@ title="pinterest icon"></i>
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</ul> <div class="design-credit">
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<p>© 2018 Göran Svensson</p>
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<p>© 2018 Göran Svensson</p>
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<p>Nederburg Hugo Theme by <a href="https://appernetic.io">Appernetic</a>.</p>
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@@ -723,7 +688,7 @@ title="pinterest icon"></i>
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