1.Instant DevOps

2. advancing technology 3. growing business challenges 4. agile development model 5. source code + application data + bare metal infrastructure as code 6. We need new tools! 7. $ curl -L get.rexify.org | perl - --sudo -n Rex $ cpanm Rex 8. Hardware File Package Template FS SCM Transaction Cron Service Cache Host User Reports LVM Virtualization Inventory kmod Box Partition Network Cloud 9. make -> Makefile rex -> Rexfile 10. user "ubuntu"; password "ubuntu"; pass_auth; 11. user "ubuntu"; private_key "~/.ssh/id_rsa"; public_key "~/.ssh/id_rsa.pub"; key_auth; 12. user "ubuntu"; password "ubuntu"; pass_auth; sudo -on; sudo_password "ubuntu"; 13. user "ubuntu"; password "ubuntu"; pass_auth; sudo -on; sudo_password "ubuntu"; group servers => "web1", "web2", "web3"; 14. user "ubuntu"; password "ubuntu"; pass_auth; sudo -on; sudo_password "ubuntu"; group servers => "web[1..3]"; 15. user "ubuntu"; password "ubuntu"; pass_auth; sudo -on; sudo_password "ubuntu"; group servers => "web[1..3]", "lb[1..2]", "db[01..02]", "mail"; 16. user "ubuntu"; password "ubuntu"; pass_auth; sudo -on; sudo_password "ubuntu"; group servers => "web[1..3]", "lb[1..2]", "db[01..02]", "mail"; task "uptime", group => "servers", sub { say run "uptime"; }; 17. task "upgrade", group => "servers", sub { update_package_db; update_system; }; 18. task "setup_ntp", group => "servers", sub { install "ntp"; }; 19. task "setup_ntp", group => "servers", sub { install "ntp"; service ntp => ensure => "started"; }; 20. task "setup_ntp", group => "servers", sub { install "ntp"; file "/etc/ntp.conf", source => "files/etc/ntp.conf"; service ntp => ensure => "started"; }; 21. task "setup_ntp", group => "servers", sub { install "ntp"; file "/etc/ntp.conf", source => "files/etc/ntp.conf", owner => "root", group => "root", mode => 644; service ntp => ensure => "started"; }; 22. task "setup_ntp", group => "servers", sub { install "ntp"; file "/etc/ntp.conf", source => "files/etc/ntp.conf", owner => "root", group => "root", mode => 644, on_change => sub { service ntp => "restart" }; service ntp => ensure => "started"; };