Fuel plugin 2.0 for contrail spec added
Change-Id: Id6ae09bc43c90a4dc211302c6bb2a10a8eab801e
This commit is contained in:
Vyacheslav Struk
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==============================
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Fuel Contrail plugin 2.0 specs
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==============================
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Get rid of fabric scripts
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=========================
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Problem description
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-------------------
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Contrail plugin 1.0 uses fabric scripts shipped by Juniper within their Contrail packages.
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We should get rid of fabric scripts and implement puppet-driven installation.
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Reasons
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-------
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* Fabric makes installation process complex and hard to debug.
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* Fabric scripts behaviour is not idempotent. It’s quite important for normal Fuel operation. We use some dirty hacks to accomplish it for now.
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* Puppet is a native way to install and configure things in Fuel.
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* Fabric scripts make impossible by design to use plugin with Opencontrail
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Proposed solution
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------------------
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Eliminate “contrail::run_fabric” class and all its invocations in favor of puppet manifests.
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Such as:
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run_fabric { 'prov_control_bgp'}
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run_fabric { 'prov_external_bgp'}
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run_fabric { 'prov_metadata_services'}
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run_fabric { 'prov_encap_type'}
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run_fabric { 'install_database'}
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run_fabric { 'setup_database'}
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run_fabric { 'install_cfgm'}
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run_fabric { 'install_control'}
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run_fabric { 'install_collector'}
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run_fabric { 'install_webui'}
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run_fabric { 'setup_contrail_keepalived'}
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run_fabric { 'fixup_restart_haproxy_in_collector'}
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run_fabric { 'fix-service-tenant-name'}
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run_fabric { 'setup_cfgm'}
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run_fabric { 'setup_control'}
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run_fabric { 'setup_collector'}
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run_fabric { 'setup_webui'}
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Provide better support for multiple L2 segments in plugin-enabled environments
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==============================================================================
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Problem description
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-------------------
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The Fuel Contrail Plugin version 1.0 uses Neutron with VLAN segmentation as the only network type supported.
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This network type does not fully support Node groups feature introduced in Fuel 6.0 to simplify the deployments in multi-rack environments with different L2 network in each rack.
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Proposed solution
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-----------------
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Update the plugin to support Neutron with GRE segmentation Fuel network type and use Private network settings set in Fuel Web UI.
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Use “plugin role” feature from Fuel 7.0
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=======================================
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Problem description
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-------------------
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Plugin installation process is complex and not obvious for end users because of workaround with base-os role and mandatory node_user_name for every node with plugin functions.
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Proposed solution
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-----------------
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Rewrite plugin logic to drop the workaround and utilize new plugin SDK feature Plugin role to enable selection of plugin-defined node roles for end-user.
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Related blueprints
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------------------
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https://blueprints.launchpad.net/fuel/+spec/role-as-a-plugin
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Use Neutron supported by Mirantis
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=================================
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Problem description
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-------------------
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Contrail-enabled OpenStack environment is using juniper-shipped Neutron which is not supported by Mirantis. Updates and security fixes for Neutron component should be applied manually.
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Proposed solution
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-----------------
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Use Mirantis OpenStack Neutron running on OpenStack controllers instead of shipped by Juniper one.
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Automate installation of contrail neutron plugin on controllers.
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Implementation
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==============
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Assignee(s)
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-----------
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Primary assignee:
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- Oleksandr Martsyniuk <omartsyniuk@mirantis.com> - feature lead, developer
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Other contributors:
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- Vyacheslav Struk <vstruk@mirantis.com> - developer
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Project manager:
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- Andrian Noga <anoga@mirantis.com>
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Quality assurance:
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- Oleksandr Kosse <okosse@mirantis.com> - qa
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- Iryna Vovk <ivovk@mirantis.com> - qa
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Work Items
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----------
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* Create pre-dev environment and manually deploy Contrail software
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* Create Fuel plugin bundle, which contains deployments scripts, puppet modules and metadata
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* Extend the puppet module with the following functions:
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- full puppet-based Contrail controllers deployment and configuration
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- support Neutron with GRE segmentation network type in Fuel
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- contrail neutron plugin installation
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- support plugin-based node role
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* Test Contrail plugin version 2.0
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- Update tests and test plans to cover new functionality
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* Update Documentation
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- Documentation should content explicit statement about impossibilty of upgrading 1.0 to 2.0 because of plugin framework restrictions.
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