diff --git a/content/post/ansible-selectattr.md b/content/post/ansible-selectattr.md new file mode 100644 index 00000000..58b7ee59 --- /dev/null +++ b/content/post/ansible-selectattr.md @@ -0,0 +1,151 @@ +--- +title: "[筆記] Ansible how to use 'list' in yaml file " +date: 2018-11-27T16:50:53+08:00 + +noSummary: false +featuredImage: "https://h.cowbay.org/images/post-default-1.jpg" +categories: ['筆記'] +tags: ['ansible','linux'] +author: "Eric Chang" +--- + +這幾天在玩ansible 時，碰到一個問題 + +假如我有個yaml檔作為資料來源，檔名是 abc.yml + +大概長這樣 + +``` + "teams": [ + { + "chinese_name": "TEAM1", + "description": "TEAM1", + "gid": 10125, + "location": [ + "hq" + ], + "name": "aa", + "users": [ + "chen", + "chou", + "huani", + "yey", + "wa" + ] + }, + { + "chinese_name": "TEAM2", + "description": "TEAM2", + "gid": 10126, + "location": [ + "hq" + ], + "name": "bb", + "users": [ + "chhiao", + "chgc", + "chy", + "hsi", + "li", + "li", + "chgchi" + ] + } + ] + +``` + + + +稍微整理一下，比較容易看 +``` + "teams": [ + { + "chinese_name": "TEAM1", + "description": "TEAM1", + "gid": 10125, + "location": ["hq"], + "name": "aa", + "users": ["chen","chou","huani","yey","wa"] + }, + { + "chinese_name": "TEAM2", + "description": "TEAM2", + "gid": 10126, + "location": ["hq"], + "name": "bb", + "users": ["chhiao","chgc","chy","hsi","li","chgchi"] + } + ] + +``` + +在 ansible playbook 中，我用 include_vars 把這個檔案叫進來 +``` +- name: load teams.yml + tags: env + include_vars: + file: files/konwen/teams.yml +``` +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 + +其中的 location/users 又是另外一個 list + +那如果我想要用users這個清單中的id作為建立帳號的來源 + +我就可以用底下這段，先把 users 裡面的內容，指給 dc_users 這個 localvar + +然後加上 when 的條件，限定只有 name == aa 的 users 才會被指定給 dc_users + + +``` +- name: set aa_users + tags: env + set_fact: + aa_users: "{{ item.users }}" + when: item.name == 'aa' + with_items: "{{ teams }}" +``` + +這樣子執行下來是沒有問題的，不過就是醜了點 XD + +之後要抓 user 帳號時，就可以直接用 aa_users 來跑迴圈 + +``` +- name: create folder for aa_users + tags: env + file: + path: "/tmp/{{ item }}" + owner: "{{ item }}" + group: "{{ item }}" + state: directory + with_items: "{{ aa_users }}" +``` + +很簡單的概念，因為一開始在 teams 這個 var 裡面 + +users 這個屬性是一個 list + +p.s 講話一定要參雜用英文單字，這樣看起來比較屌... + +所以沒辦法直接在底下的create folder task 直接叫出來 + +如果直接叫 teams.users ，那會是一個清單 +``` + ["chen","chou","huani","yey","wa"] +``` + +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 + +所以在 /tmp 底下就會多出一個 + +> ["chen","chou","huani","yey","wa"] + +這個樣子的目錄 .... + +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 ) + +後面的task再用這個 {{ aa_users }} 來跑，這樣子就 OK 了 + +雖說很簡單，但是卡了我一整天吶... + diff --git a/public/404.html b/public/404.html index f60d45d4..f6ae8a42 100644 --- a/public/404.html +++ b/public/404.html @@ -115,6 +115,10 @@ Latest posts @@ -153,7 +153,7 @@