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Kolla
Running OpenStack in containers
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Why Containers?
• Simplify the deployment process
• Make day 2 operations better
• Improve workflow
• Repeatable, reliable, fast
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How does it work?
• Ansible and Docker (Kubernetes on the way)
• Very opinionated out of the box
• Heavily customizable
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Building
• Install Kolla
• $ pip install kolla
• Run build
• $ tools/build.py -b ubuntu
• Supports ubuntu, centos, fedora, RHEL
• Push to registry
• $ tools/build.py --push
• Build from source
• tools/build.py -t source
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Customizing builds
• How does the build work?
• Configuration file
• Template overrides
• $ kolla-build --template-override template-overrides.j2 horizon
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Customizing configurations
• As mentioned before configs can be very opinionated
• How do we customize?
• Can override every piece of configuration
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Prepare for deployment
• Docker >= 1.12
• Mount flags set to shared
• Docker-py python library
• SSH connection (for Ansible)
• Ansible >= 2.0
• Generate passwords
• $ kolla-genpwd
• Modify globals.yml
• Mainly select interface and VIP address
• Configure your Ansible inventory
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Blastoff
• $ kolla-ansible deploy
• precheck
• destroy
• reconfigure
• upgrade
• bootstrap
• etc
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Other cool things about Kolla
• Buit-in ELK stack with log forwarding
• Bitfrost for bare metal deployments
• A lot of knobs to turn stuff on
• Ansible task injection coming
• Super friendly and welcoming community
• #kolla on freenode
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Caution
• Docker is new
• Kolla is even newer
• Kubernetes is coming and it is crazy new
• Really fast moving project
• Follow IRC
• Follow Github
• Follow Launchpad
• Follow Gerrit
• Networking is not terribly flexible
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Q A
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