This adds an action to the API that allows pulling out an activation
token that can be given to a worker in its config (directly or via env
or file). The worker can pass this along with its normal request in
place of its normal nonce and the server will automatically accept it.
Co-authored-by: Irena Rindos <irenarindos@users.noreply.github.com>
On a SIGHUP, if the worker's `initial_upstreams` config option has
changed, it will use the new values as the address to send its status.
Any previously discovered upstream addresses from previous status
requests are dropped. Once a successful status request is made to the
new addresses, the worker will resume its normal behavior of using the
addresses from the response to the status request.
This allows a worker to be deployed in a more stable way in a dynamic
environment where controller IPs could change. In particular this helps
with a case where all controllers are replaced with new controllers
running on new IPs.
To illustrate with an example, suppose there is an instance group of
controllers instances. And there are worker instances that have their
config rendered from consul-template that sets `initial_upstreams` to
the IPs of the controller instances. If all controller instances are
restarted or replaced at the same time and assigned new IPs, a new
config will be rendered for the worker. Previously the only way for the
worker to use the new value would be for the worker process to be
restarted. Otherwise the worker would only know about the previous IPs
and would fail to connect to the new controllers. However, a restart
would mean any active sessions and session connections on the worker
instance would be terminated. With this update, consul-template can send
a SIGHUP to the worker, the worker will connect to the new controllers
and resume normal status reporting, allowing the sessions and session
connections to remain.
The same principles would apply for other examples of dynamic
environments such as nomad and kubernetes.
See:
https://github.com/hashicorp/consul-templatehttps://www.nomadproject.io/docs/job-specification/template
* fix (worker): send workerId when authorizing session
Send the workerId returned from the last success worker status
when authorizing a session.
* fixup! fix (worker): send workerId when authorizing session
* fixup! fix (worker): send workerId when authorizing session
* refactor (worker): deprecate workerId in ActivateSessionRequest
It wasn't being used anywho
* fixup! fix (worker): send workerId when authorizing session
* Update LookupSessionRequest
Co-authored-by: Jeff Mitchell <jeffrey.mitchell@gmail.com>
This essentially worked for non-dev mode before but would create storage
directories that weren't actually used or needed, and it didn't work in
dev mode because it made assumptions about the presence of a worker auth
kms or not. This fixes those behaviors.
* Don't automatically create worker names, as this is now invalid for
PKI workers
* Fix a check in dev that clears out name/description in exactly the
wrong cases
* Change eventing setup to use a hostname-based ID instead of the name
(which could change on every start anyways)
* Adds WorkerAuthStorage wrapper for worker credential encryption using nodeenrollment library.
* Adds AuthStoragePath field in worker config and dev mode to specify directory to store credentials.
* Discontinue support for old Server message in ServerCoordinationService. Split message into ServerWorkerStatus and UpstreamServer (which currently contains controller addresses). Remove unnecessary fields. Modify workerStatusServer to use new fields.
Co-authored-by: Todd <github@quaddi.com>
* Move the server daemons into their own package
With this change the internal/server package now is dedicated to the server domain (workers and controllers) and not to the server daemons.
The hope is that this will make it easier to keep the daemons decoupled from the representation of the servers in the database.