OpenNebulaConf 2016 - LAB ONE - Vagrant running on OpenNebula? by Florian Heigl

OpenNebulaConf 2016 - LAB ONE - Vagrant running on OpenNebula? by Florian Heigl

• 1.
  LAB ONE 21. Oct 2016 | BERATUNG@FLORIANHEIGL.ME Vagrant runningon OpenNebula?
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  what I do Sysadmin, Consultant I need to test shiny new things for other people I need to pin down bugs noone ever noticed •avg 95 browser tabs • aaand 100‘s more in OneTab Present new things: Use Vagrant on my MacBook Lab ONE
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  Test new things Vagrant is nice at times Containers: Just application deployment I need a “full stack“ Describe whole environments Vagrant can do that, but: Sysadmin stuff might need 10+ VMs just to show basics (Demoing datacentermanagement, clouds, etc...) FrOSCon demo: ~70 VMs running Rudder Project. Lab ONE
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  Vagrant for Sysadmin Lab ONE
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  Virtualbox → Scales badly (Overhead) → Unstable 10+ VMs → portable 32GB laptops are rare Why is it we running on laptops if we have servers??? Lab ONE
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  Vagrant provider opennebula-provider • Exists since early 2015 •By Evgeni Cherdancev • First based on rOCCI, then FOG • Fog uses RPC2 • Docs ‘fly on thin air‘ (Cloudy) • Does most of what you need • https://github.com/eucher/opennebula-provider/ Lab ONE
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  Base config Lab ONE
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  ONE-host Grab a random box • Leftover from Check_MK training •Spin up at Scaleway • Rudder managed • autoinstalled ONE • local SSD Lab ONE
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  Install Make it work install 1 rubygem: fog install vagrant plugins: • opennebula-provider (1.1.2) •vagrant-proxyconf (1.5.2) • vagrant-share (1.1.5, system) • vagrant-skytap (0.3.4) • vagrant-sshfs (1.2.0) Dedicated user created from Sunstone (This user will be on someones computer) Lab ONE
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  Bootup Lab ONE
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  Tuning The WaitForCommunicator thing Vagrant won‘t wait for VM startup! Boot Timeout settings don‘t work! EUNREACHABLE Class: Vagrant::Action::Builtin::WaitForCommunicator -> no error handling (BAAAAD) Class: VagrantPlugins::Skytap::Action::WaitForCommunicator -> has error handling (GOOOOOOD) Lab ONE
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  Patch The Ruby smiley! .vagrant.d/gems/gems/opennebula-provider-1.1.2/ lib/opennebula-provider/action.rb Lab ONE
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  Usage Summary find a Vagrantfile adjust Vagrantfile vagrant up vagrant destroy vagrant up –provision Lab ONE
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  Bootup Lab ONE
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  Running! Lab ONE
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  Limitations Use Template ID or newest Template ID resolved by Name Memory settings: yes Shared folders: rsync (default) or SSHFS (little tricky) DO NOT set hostname if one-context does (/etc/hosts might go to hell) Doesn‘t download vagrantbox.es Adjust networks: no(*) (*it‘s not OCCI after all) Lab ONE
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  Private Networks how about unlimited private networks? brnatN on ONE-host ip range / gw managed by ONE iptables nat or vrouter normal one-context Just set up OpenVPN access to ONE-host push the route! => can ‚vagrant ssh‘ to machine Lab ONE
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  ONE Vagrant provider does it all! Offload workloads from Virtualbox to ONE Hand out easy but restricted API access to devs for tests, QA and raw performance With ruby skills, config can autoselect provider (or vagrant up –provider) Use your cloud more often give choice Lab ONE
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  26. Oct 2016 | BERATUNG@FLORIANHEIGL.ME