{"id":461,"date":"2015-12-11T18:28:47","date_gmt":"2015-12-11T10:28:47","guid":{"rendered":"http:\/\/www.ipcpu.com\/?p=461"},"modified":"2015-12-11T18:28:47","modified_gmt":"2015-12-11T10:28:47","slug":"ansible-second","status":"publish","type":"post","link":"https:\/\/c.ipcpu.com\/2015\/12\/ansible-second\/","title":{"rendered":"Ansible\u5165\u95e8\uff08\u4e8c\uff09"},"content":{"rendered":"
Ansible\u5165\u95e8\uff08\u4e8c\uff09.md<\/p>\n
Ansible\u7684\u4e3b\u914d\u7f6e\u6587\u4ef6\u662f\/etc\/ansible\/ansible.cfg
\u5982\u679c\u4f60\u53d1\u73b0\u6ca1\u6709\u8fd9\u4e2a\u6587\u4ef6\u4e5f\u4e0d\u8981\u7740\u6025\uff0c\u53ef\u80fd\u662f\u56e0\u4e3a\u4f7f\u7528pip\u65b9\u5f0f\u5b89\u88c5\u7684ansible\u3002<\/p>\n
Ansible\u5728\u8fd0\u884c\u65f6\u4f1a\u6309\u7167\u5982\u4e0b\u987a\u5e8f\u53bb\u5bfb\u627eansible.cfg<\/p>\n
\n\n
- File specified by the ANSIBLE_CONFIG environment variable(\u73af\u5883\u53d8\u91cf\u6307\u5b9a)<\/li>\n
- .\/ansible.cfg (ansible.cfg in the current directory \u5f53\u524d\u76ee\u5f55)<\/li>\n
- ~\/.ansible.cfg (.ansible.cfg in your home directory \u7528\u6237\u5bb6\u76ee\u5f55)<\/li>\n
- \/etc\/ansible\/ansible.cfg<\/li>\n<\/ol>\n<\/blockquote>\n
<\/p>\n
\u5728\u8fd9\u91cc\u6211\u4eec\u5f3a\u70c8\u5efa\u8bae\u5c06ansible.cfg\u653e\u7f6e\u5728\u5f53\u524d\u76ee\u5f55\uff0c\u5e76\u4e14\u4e0ehosts\u6587\u4ef6\u653e\u7f6e\u5728\u4e00\u8d77\uff0c\u5e76\u4e14\u4f7f\u7528SVN\u7b49\u7248\u672c\u8f6f\u4ef6\u8fdb\u884c\u7ba1\u7406\u3002<\/p>\n
\u6ce8\uff1a\u5982\u679c\u540c\u65f6\u5b58\u5728\/etc\/ansible\/ansible.cfg\u548c .\/ansible.cfg \u4e24\u4e2a\u6587\u4ef6\uff0c\u56e0\u4e3aansible\u6309\u7167\u987a\u5e8f\u5bfb\u627e\uff0c\u627e\u5230\u4ee5\u540e\u5c31\u4e0d\u518d\u5411\u4e0b\u5bfb\u627e\uff0c\u6240\u4ee5\u53ea\u6709 .\/ansible.cfg\u751f\u6548\u3002<\/p>\n
ansible.cfg\u4f1a\u6709\u5f88\u591a\u53ef\u914d\u7f6e\u9879\uff0c\u8fd9\u91cc\u6211\u4eec\u7c98\u8d34\u4e86\u90e8\u5206\u5e38\u7528\u9879\uff1a<\/p>\n
#@@Example of ansible.cfg <\/span><\/code><\/li>
[<\/span>defaults<\/span>]<\/span><\/code><\/li>
#hostfile\u6307\u5b9ahosts\u6587\u4ef6\u4f4d\u7f6e\uff0c\u4ece1.9\u7248\u672c\u5f00\u59cb\u88abinventory\u66ff\u4ee3<\/span><\/code><\/li>
hostfile <\/span>=<\/span> <\/span>.\/<\/span>hosts<\/span><\/code><\/li>
#\u5173\u95edhost_key_checking\uff0c\u5426\u5219\u7b2c\u4e00\u6b21\u4f7f\u7528\u6709\u8fde\u63a5\u63d0\u793a<\/span><\/code><\/li>
host_key_checking <\/span>=<\/span> <\/span>False<\/span><\/code><\/li><\/ol><\/pre>\n
\u8fd9\u91cc\u5927\u5bb6\u770b\u5230\u6211\u4eec\u53ea\u914d\u7f6e\u4e862\u9879\uff0c\u90a3\u662f\u56e0\u4e3a\u8fd8\u6709\u5f88\u591a\u914d\u7f6e\u9879\u90fd\u91c7\u7528\u7684\u9ed8\u8ba4\u503c\uff0c\u6211\u4eec\u7c98\u8d34\u4e00\u90e8\u5206\u9ed8\u8ba4\u9879<\/p>\n
[<\/span>defaults<\/span>]<\/span><\/code><\/li>
remote_tmp <\/span>=<\/span> $HOME<\/span>\/.<\/span>ansible<\/span>\/<\/span>tmp<\/span><\/code><\/li>
pattern <\/span>=<\/span> <\/span>*<\/span><\/code><\/li>
forks <\/span>=<\/span> <\/span>5<\/span><\/code><\/li>
poll_interval <\/span>=<\/span> <\/span>15<\/span> <\/span><\/code><\/li>
sudo_user <\/span>=<\/span> root<\/span><\/code><\/li>
transport <\/span>=<\/span> smart<\/span><\/code><\/li>
remote_port <\/span>=<\/span> <\/span>22<\/span><\/code><\/li>
gathering <\/span>=<\/span> <\/span>implicit<\/span><\/code><\/li><\/ol><\/pre>\n
\u6211\u89c9\u7740\u8fd9\u91cc\u9762\u9700\u8981\u89e3\u91ca\u7684\u6709\u4e24\u9879\uff1a
forks \u4e0e\u4e3b\u673a\u901a\u4fe1\u65f6\u7684\u9ed8\u8ba4\u5e76\u884c\u8fdb\u7a0b\u6570
gathering \u63a7\u5236\u9ed8\u8ba4facts\u6536\u96c6\uff08\u8fdc\u7a0b\u7cfb\u7edf\u53d8\u91cf\uff09\u3002
gathering \u7684\u9ed8\u8ba4\u503c\u662fimplicit\uff0c\u8868\u793a\u6bcf\u6b21\u8fde\u63a5\u4e3b\u673a\u90fd\u4f1a\u4f1a\u4ece\u4e3b\u673a\u4e0a\u6536\u96c6\u4fe1\u606f\uff0c\u9664\u975eplaybook\u91cc\u6307\u5b9a\u4e86gather_facts: False\uff0cexplicit\u6b63\u597d\u76f8\u53cd\uff0c\u6bcf\u6b21\u90fd\u4e0d\u4f1a\u6536\u96c6\u4e3b\u673a\u4fe1\u606f\uff0csmart\u662f\u667a\u80fd\u6a21\u5f0f\uff0c\u4f1a\u6709\u4e00\u4e2a\u7f13\u5b58\u533a\u57df\uff08\u7f13\u5b58\u65f6\u95f4\u53ef\u4ee5\u8bbe\u5b9a\uff09\uff0c\u5728\u7f13\u5b58\u5185\u5c31\u4e0d\u4f1a\u6536\u96c6\uff0c\u7f13\u5b58\u6ca1\u6709\u6216\u8005\u5931\u6548\u624d\u4f1a\u53bb\u4e3b\u673a\u4e0a\u6536\u96c6\u4fe1\u606f\u3002\u56e0\u6b64\u5982\u679c\u542f\u7528\u4e86smart\u6a21\u5f0f\uff0c\u8fd8\u9700\u8981\u914d\u7f6e\u4e0b\u9762\u51e0\u9879<\/p>\n
fact_caching <\/span>=<\/span> redis<\/span><\/code><\/li>
fact_caching_timeout <\/span>=<\/span> <\/span>3600<\/span><\/code><\/li>
fact_caching_connection <\/span>=<\/span> localhost<\/span>:<\/span>6379<\/span>:<\/span>0<\/span><\/code><\/li><\/ol><\/pre>\n
\u4e8c\u3001\u4e3b\u673a\u6e05\u5355\u7684\u7ba1\u7406<\/h2>\n
hosts\u6587\u4ef6\u4fdd\u5b58\u6240\u6709\u8fdc\u7a0b\u4e3b\u673a\u7684\u4fe1\u606f\uff0c\u5176\u4e2d\u5927\u62ec\u53f7\u8868\u793a\u4e00\u4e2a\u4e3b\u673a\u7ec4\uff0c\u4e00\u4e2a\u7ec4\u53ef\u4ee5\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a\u4e3b\u673a\uff0c\u5f53\u4f60\u64cd\u4f5c\u4e00\u4e2a\u7ec4\u7684\u65f6\u5019\u4e5f\u5c31\u8868\u793a\u64cd\u4f5c\u8be5\u7ec4\u4e0b\u7684\u6240\u6709\u4e3b\u673a\uff1a<\/p>\n
192.168<\/span>.<\/span>1.1<\/span><\/code><\/li>
192.168<\/span>.<\/span>1.2<\/span><\/code><\/li>
<\/code><\/li>
[<\/span>webserver<\/span>]<\/span><\/code><\/li>
192.168<\/span>.<\/span>1.3<\/span>:<\/span>32222<\/span> <\/span>#\u989d\u5916\u6307\u5b9a\u8fde\u63a5\u7aef\u53e3\uff0c\u9ed8\u8ba4\u4f7f\u752822\u7aef\u53e3<\/span><\/code><\/li>
192.168<\/span>.<\/span>1.4<\/span><\/code><\/li><\/ol><\/pre>\n
\u53ef\u4ee5\u5728hosts\u6587\u4ef6\u4e2d\u4f7f\u7528\u901a\u914d\u7b26<\/p>\n
[<\/span>webservers<\/span>]<\/span><\/code><\/li>
192.168<\/span>.<\/span>1.<\/span>[<\/span>1<\/span>:<\/span>50<\/span>]<\/span> <\/span>#\u5339\u914d192.168.1.1~192.168.1.50<\/span><\/code><\/li>
<\/code><\/li>
[<\/span>databases<\/span>]<\/span><\/code><\/li>
db<\/span>-[<\/span>a<\/span>:<\/span>f<\/span>].<\/span>example<\/span>.<\/span>com<\/span><\/code><\/li><\/ol><\/pre>\n
\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u4e3b\u673a\u5355\u72ec\u6307\u5b9a\u4e00\u4e9b\u53d8\u91cf<\/p>\n
[<\/span>atlanta<\/span>]<\/span><\/code><\/li>
host1 http_port<\/span>=<\/span>80<\/span> maxRequestsPerChild<\/span>=<\/span>808<\/span><\/code><\/li>
host2 http_port<\/span>=<\/span>303<\/span> maxRequestsPerChild<\/span>=<\/span>909<\/span><\/code><\/li><\/ol><\/pre>\n
\u53ef\u4ee5\u4e3a\u6bcf\u4e2a\u4e3b\u673a\u6307\u5b9a\u8fde\u63a5\u7c7b\u578b\u548c\u8fde\u63a5\u7528\u6237<\/p>\n
[<\/span>targets<\/span>]<\/span><\/code><\/li>
localhost ansible_connection<\/span>=<\/span>local<\/span><\/code><\/li>
other1<\/span>.<\/span>example<\/span>.<\/span>com ansible_connection<\/span>=<\/span>ssh ansible_ssh_user<\/span>=<\/span>mpdehaan<\/span><\/code><\/li>
other2<\/span>.<\/span>example<\/span>.<\/span>com ansible_connection<\/span>=<\/span>ssh ansible_ssh_user<\/span>=<\/span>mdehaan<\/span><\/code><\/li><\/ol><\/pre>\n
\u4e09\u3001Playbook<\/h2>\n
Ansible\u7684playbook\u5c31\u5982\u540csaltstack\u7684state\uff0c\u4e00\u4e2aplaybook\u5c31\u662f\u4e00\u4e2aYAML\u6587\u4ef6\uff0c\u6240\u4ee5playbook\u6587\u4ef6\u4e00\u822c\u90fd\u4ee5.yml\u7ed3\u5c3e\uff0c\u5199playbook\u4e0d\u9700\u8981\u590d\u6742\u7684YAML\u8bed\u6cd5\uff0c\u6240\u4ee5\u4e5f\u4e0d\u7528\u5355\u72ec\u53bb\u5b66YAML\u8bed\u6cd5\u3002<\/p>\n
\u6b64\u5916playbook\u548c\u6a21\u677f\u6587\u4ef6\uff08template\u6a21\u5757\uff09\u8fd8\u4f7f\u7528jinja2\u8bed\u6cd5\u8bed\u6cd5\u5b9e\u73b0\u9ad8\u7ea7\u529f\u80fd\u3002<\/p>\n
\u4e00\u4e2aplaybook\u6587\u4ef6\u7531\u4e00\u4e2a\u6216\u591a\u4e2aplay\u7ec4\u6210\uff0c\u6bcf\u4e2aplay\u5b9a\u4e49\u4e86\u5728\u4e00\u4e2a\u6216\u591a\u4e2a\u8fdc\u7a0b\u4e3b\u673a\u4e0a\u6267\u884c\u7684\u4e00\u7cfb\u5217\u7684task\uff0c\u5176\u4e2d\u6bcf\u4e2atask\u4e00\u822c\u5c31\u662f\u8c03\u7528\u4e00\u4e2aansible\u7684\u6a21\u5757\uff0c\u5982\u8c03\u7528copy\u6a21\u5757\u590d\u5236\u6587\u4ef6\u5230\u8fdc\u7a0b\u4e3b\u673a\u6216\u8c03\u7528shell\u6a21\u5757\u6267\u884c\u547d\u4ee4\u3002<\/p>\n
\u4e0b\u9762\u662f\u4e00\u4e2a\u7b80\u5355\u7684\u4f8b\u5b50\uff1a<\/p>\n
---<\/span> <\/span>#\u4efb\u4f55playbook\u6587\u4ef6(\u5176\u5b9e\u5c31\u662fyaml\u6587\u4ef6)\u90fd\u8981\u4ee5\u8fd9\u4e2a\u5f00\u5934<\/span><\/code><\/li>
-<\/span> hosts<\/span>:<\/span> webservers <\/span>#\u5bf9webservers\u4e3b\u673a\u7ec4\u4e0b\u7684\u6240\u6709\u4e3b\u673a\u8fdb\u884c\u64cd\u4f5c<\/span><\/code><\/li>
vars<\/span>