Ops Tool made by Perl Beginner #yapcasia 2012

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1. Ops Tool made by Perl Beginner @riywo Sep, 28, 2012 YAPC::Asia 2012
2. @riywo
3. http://www.publicdomainpictures.net/view-image.php?image=4314&picture=t-shirt-image
5. Perl Beginner
6. I Love Cats
7. DataBase Engineer MySQL
8. Operation Engineer DevOps
9. Operation Engineer?
10. Trouble Shooting Design System Setup Server On Calling Isu nage Sync Info Operation Inspection Develop Tools Capacity Plan
11. Trouble Shooting Design System Setup Server On Calling Isu nage? Sync Info Operation Inspection Develop Tools Capacity Plan
12. =Throwing Chair :-p
13. F*cking Query SELECT SQL_CALC_FOUD_ROWS * FROM table WHERE c1 > 1000 OR c2 != 100 ORDER BY c3 LIMIT 10 OFFSET 100000;
14. http://www.flickr.com/photos/andrew_freese/2200774154/ Operation Engineer
15. dev> I did nothing..., but....
16. ops> What did you do? dev> I did nothing..., but....
17. http://www.flickr.com/photos/jaydoubleyougee/2259260845/ Operation Engineer
18. I Love Cats
19. But...., do they only happen in Dev side?
20. Operation Error!!!!!!!!!!!!!
21. Operation Mistake # rm -fr /tmp/* # rm -fr / tmp/*
22. Capacity Over Sorry, we have no more servers....
23. ...and... Setup Error
24. server_id = 1212 default_character_set=sjis innodb_buffer_pool_size=2G server_id = 1213 default_character_set=utf8 innodb_buffer_pool_size=3G
25. Can’t copy the same file to all servers => edit manually
26. Can’t copy the same file to all servers => edit manually M istake!!!
27. Current servers’ sysctl changed But setup operation did not follow it...
28. Current servers’ sysctl changed But setup operation did not follow it... M istake!!!
29. http://www.flickr.com/photos/clickflashphotos/3402287993/
30. Why? Are you a Professional?
31. Someone has “Setup Procedure Manual” 1. OS install 1.1 IP address 1.2 nameserver 1.3 OS user 2. SSH Configuration 2.1 ... 3. Install Perl 3.1 ...
32. Someone have “Setup Procedure Manual” 1. OS install 1.1 IP address 1.2 nameserver 1.3 OS user 2. SSH Configuration 2.1 ... 3. Install Perl 3.1 ... Operate Manually Check Visually
33. # ssh $TGT cat /etc/my.cnf | diff -u /etc/my.cnf - - server_id = 2323 + server_id = 2324 - log_slave_updaets Yes, this difference is OK If $TGT is Master DB this difference is NG
34. # ssh $TGT cat /etc/my.cnf | diff -u /etc/my.cnf - - server_id = 2323 + server_id = 2324 - log_slave_updaets Yes, this difference is OK If $TGT is Master DB this difference is NG Impossible
35. OK, Setup scripts help us!
36. OK, Setup scripts help us! ✗
37. Patch, Patch, Patch... patch for a new component many times, setup script become a spaghetti code...
38. Script Bug OpsEngi usually not good at programing, the script will have many many bugs...
39. Unfollow current change For trouble, servers’ config were changed, but setup script isn’t changed...
40. No Test!!!! F*ck!!! usually setup script is simple shell script, only listed exec commands no test
41. No Test!!!! F*ck!!! usually setup script is simple shell script, only listed exec commands no test
42. Check return code Check status of servers ✗
43. Describe
44. Server Correct Status /etc/sysconfig/ /etc/my.cnf /etc/sysctrl.conf /etc/ssh/ssh_config / /etc/cron.d /etc/resolv.conf /etc/yum.repos.d/ /service/app/run chkconfig ulimit httpd.conf rpms
45. If you describe the correct status you can also test current servers!
46. Correct Status New Server Server Server Server Server Server
47. Correct Status New Server Server Server Server Server Server Test Setup
48. Break Time :) Remain 10min?
49. Correct Status New Server Server Server Server Server Server Test Setup
50. http://www.flickr.com/photos/stocktoc/4539506889/ Touryo ౩ྊNBTUFS DBSQFOUFS
    PG
    TFSWFST
51. Describe
52. Orchestration Configuration Bootstrapping Server Setup
53. Orchestration Configuration Bootstrapping Server Setup Data sync, LB configuration OS install
54. Orchestration Configuration Bootstrapping Server Setup Configure, Install Middleware
55. Describe test/setup procedures DSL = blueprint.pl (cron,httpd,mysql,...) test { my $c = shift; ok ... }; run { my $c = shift; $c->ssh(...) };
56. server_id = <: $server_id :> default_character_set= <: $char :> Server’s my.cnf Text::Xslate::render Test example diff
57. server_id = <: $server_id :> default_character_set= <: $char :> Server’s my.cnf Text::Xslate::render Run example SSH install
58. server1 => mbga:web server2 => mbga:db:master server3 => game1:web Describe role of nodes
59. Describe blueprints of roles mbga:web => [cron, httpd] mbga:db:master => [cron, mysql] game1:web => [cron, httpd]
60. Describe attribute of roles mbga:web => { cron_hour => 1, proc_num => 50, } mbga:db:master => {...} game1:web => {...}
61. How to develop?
62. Make time
63. Research
64. Small snippet
65. Ask Devs!
66. Lessons for Manage Tool Development
67. Maintenance Can you hand over its maintenance?
68. Touryo blueprint are written by other staffs :)
69. Simple The UNIX philosophy
70. Touryo only care about server configuration. Combine other tools ex. AdminTool(node-role)
71. Replace Is it able to replace easily?
72. By Touryo, undocumented procedures have been described. Easier to replace!
73. Any Questions?
74. Thanks!
75. @riywo blog.riywo.com weblog.riywo.com