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CLI Deployment Workflow
Understanding the CLI Deployment Workflow
To deploy OpenStack using CLI successfully you need nodes to pass through the "Prepare->Discover->Provision->Deploy" workflow. Following sections describe how to do this from the beginning to the end of the deployment. During Prepare stage nodes should be connected correctly to the Master node for network booting. Then turn on the nodes to boot using PXE provided by Fuel Master node.
Discover
Nodes being booted into bootstrap mode run all the required services for the node to be managed by Fuel Master node. When booted into bootstrap phase, node contains ssh authorized keys of Master node which allows Cobbler server installed on Master node to reboot the node during provision phase. Also, bootstrap mode configures MCollective on the node and specifies ID used by Astute orchestrator to check the status of the node.
Provision
Provisioning is done using Cobbler.
Deploy
Deployment is done using Astute orchestrator, which parses
nodes and attributes sections and recalculates
parameters needed for deployment. Calculated parameters are passed to
the nodes being deployed by use of astute.yaml file. Then puppet parses
this file using Facter plugin and uploads the node settings into puppet.
These settings are used during catalog compilation phase by puppet.
Finally catalog is executed and Astute orchestrator passes to the next
node in deployment sequence.
Deploying Using CLI