Sherpa is a highly available, fast, and flexible horizontal job scaling for HashiCorp Nomad. It is capable of running in a number of different modes to suit different requirements, and can scale based on Nomad resource metrics or external sources.
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Move Nomad Meta policy to satisfy policy interface. #58
Previously the Nomad meta policy engine conflicted with the Consul
storage backend. This was due to the early design of storage being
for policies only. Recently the storage backend has improved to
include additional state items, and therefore is not just for
policies. The Nomad meta policy engine should therefore be able to
run alongside the Consul state backend, with the Nomad meta
policies storage in memory. This is because we treat Nomad as the
source of truth.
The Nomad meta watcher is now also moved over to use the watcher
package, in the same way deployments are tracked. Several
improvements to the meta watcher are also included, such as
handling groups which have their policy removed, but the job
continues to run.
Previously the Nomad meta policy engine conflicted with the Consul storage backend. This was due to the early design of storage being for policies only. Recently the storage backend has improved to include additional state items, and therefore is not just for policies. The Nomad meta policy engine should therefore be able to run alongside the Consul state backend, with the Nomad meta policies storage in memory. This is because we treat Nomad as the source of truth.
The Nomad meta watcher is now also moved over to use the watcher package, in the same way deployments are tracked. Several improvements to the meta watcher are also included, such as handling groups which have their policy removed, but the job continues to run.
Closes #55