Ansible as a better shell script
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The document discusses how Ansible can be used as an alternative to shell scripts for automating tasks like checking for updates on a remote server by running commands over SSH; it provides an example playbook that uses Ansible modules to get update check log data from the remote server and display it locally. The document also outlines some additional Ansible features the author intends to experiment with, like using fetch to copy files and local_action to run tasks on the local machine.
![やっていること
NVDA日本語版の更新チェックを数える
(1) サーバーに ssh する
(2) /var/log/httpd を ls してファイル名確認
(3) grep キーワード ファイル名 | wc
[xx/Oct/2014:xx:xx:xx +0000] serverName
xxx.xxx.xxx.xxx - - "GET
/updateCheck/?language=ja_JP&autoCheck=True&x64=Tr
ue&installed=True&version=2014.3jp&versionType=nvdaj
p&osVersion=6.1.7601+Service+Pack+1 HTTP/1.0" 200 -
"- -> /updateCheck/index.py" "Python-urllib/1.17"](https://image.slidesharecdn.com/141004-ansible-141004210450-conversion-gate01-170424090459/85/Ansible-as-a-better-shell-script-3-320.jpg)
![結果
PLAY [serverName]
************************************************************
GATHERING FACTS
***************************************************************
ok: [serverName]
TASK: [set latest]
************************************************************
changed: [serverName]
TASK: [set fact]
**************************************************************
ok: [serverName]
TASK: [show msg]
**************************************************************
ok: [serverName] => {
"msg": "20140928 all:3509 2014.3jp:2308 2014.2jp:730 2014.1jp:315 2013.3jp:152
win51:228 win60:124 win61:2163 win62:106 win63:888 x64:1909 installed:3387"
}
PLAY RECAP
********************************************************************
serverName : ok=16 changed=13 unreachable=0 failed=0](https://image.slidesharecdn.com/141004-ansible-141004210450-conversion-gate01-170424090459/85/Ansible-as-a-better-shell-script-9-320.jpg)
![これから試すこと
- fetch : リモートから管理マシンにファイルコピー
- unarchive: copy + shell tar xf
- local_action: ローカルで実行
- debug msg="{{ 'hello world'.upper()[:5] }}"](https://image.slidesharecdn.com/141004-ansible-141004210450-conversion-gate01-170424090459/85/Ansible-as-a-better-shell-script-11-320.jpg)
Ansible as a better shell script
- 1. Ansible as a better shell script @24motz 2014-10-04 LT駆動開発08 http://www.ansible.com/home
- 3. やっていること NVDA日本語版の更新チェックを数える (1) サーバーに ssh する (2) /var/log/httpd を ls してファイル名確認 (3) grep キーワード ファイル名 | wc [xx/Oct/2014:xx:xx:xx +0000] serverName xxx.xxx.xxx.xxx - - "GET /updateCheck/?language=ja_JP&autoCheck=True&x64=Tr ue&installed=True&version=2014.3jp&versionType=nvdaj p&osVersion=6.1.7601+Service+Pack+1 HTTP/1.0" 200 - "- -> /updateCheck/index.py" "Python-urllib/1.17"
- 4. 最初の自動化=sshの代用品 サーバーに ssh /var/log/httpd を ls してファイル名を確認 $ ansible -i hosts --sudo -m shell --args "ls /var/log/httpd" serverName $ ansible -i hosts --sudo -m shell --args "grep autoCheck=True /var/log/httpd/access_log-$LATEST | wc" serverName
- 5. playbookを作ってみた $ ansible-playbook -i hosts playbook.yml --- - hosts: serverName sudo: yes tasks: - name: set latest shell: ls /var/log/httpd | grep access_log | tail -1 | sed -e s/access_log-//g register: latest
- 6. shell #2 tasks: - name: get nvda_all shell: grep autoCheck=True /var/log/httpd/access_log-{{ latest.stdout }} | wc | awk '{ print $1 }' register: nvda_all
- 7. set_fact tasks: - name: set fact set_fact: latest_: "{{ latest.stdout }}" nvda_all_: "{{ nvda_all.stdout }}" nvda_2014_3jp_: "{{ nvda_2014_3jp.stdout }}" win62_: "{{ win62.stdout }}”
- 8. debug tasks: - name: show msg debug: msg="{{ latest_ }} all:{{ nvda_all_ }} 2014.3jp:{{ nvda_2014_3jp_ }} 2014.2jp:{{ nvda_2014_2jp_ }} 2014.1jp:{{ nvda_2014_1jp_ }} 2013.3jp:{{ nvda_2013_3jp_ }} win51:{{ win51_ }} win60:{{ win60_ }} win61:{{ win61_ }} win62:{{ win62_ }} win63:{{ win63_ }} x64:{{ x64_ }} installed:{{ installed_ }}"
- 9. 結果 PLAY [serverName] ************************************************************ GATHERING FACTS *************************************************************** ok: [serverName] TASK: [set latest] ************************************************************ changed: [serverName] TASK: [set fact] ************************************************************** ok: [serverName] TASK: [show msg] ************************************************************** ok: [serverName] => { "msg": "20140928 all:3509 2014.3jp:2308 2014.2jp:730 2014.1jp:315 2013.3jp:152 win51:228 win60:124 win61:2163 win62:106 win63:888 x64:1909 installed:3387" } PLAY RECAP ******************************************************************** serverName : ok=16 changed=13 unreachable=0 failed=0
- 10. 最近やってみたこと $ ansible-playbook --extra-vars “hosts=abc" - hosts: '{{ hosts }}' - file: path=/data mode=0755 state=directory - copy: src=hoge.tgz dest=/tmp/hoge.tgz - service : name=httpd state=started - shell: tar xfz /tmp/hoge.tgz args: - chdir: /data/hoge
- 11. これから試すこと - fetch : リモートから管理マシンにファイルコピー - unarchive: copy + shell tar xf - local_action: ローカルで実行 - debug msg="{{ 'hello world'.upper()[:5] }}"