* agent: return a non-zero exit code on error
* agent/template: always return on template server error, add case for error_on_missing_key
* agent: fix tests by updating Run params to use an errCh
* agent/template: add permission denied test case, clean up test var
* agent: use unbuffered errCh, emit fatal errors directly to the UI output
* agent: use oklog's run.Group to schedule subsystem runners (#9761)
* agent: use oklog's run.Group to schedule subsystem runners
* agent: clean up unused DoneCh, clean up agent's main Run func
* agent/template: use ts.stopped.CAS to atomically swap value
* fix tests
* fix tests
* agent/template: add timeout on TestRunServer
* agent: output error via logs and return a generic error on non-zero exit
* fix TestAgent_ExitAfterAuth
* agent/template: do not restart ct runner on new incoming token if exit_after_auth is set to true
* agent: drain ah.OutputCh after sink exits to avoid blocking on the channel
* use context.WithTimeout, expand comments around ordering of defer cancel()
* TOB-018 remediation
* Make key derivation an optional config flag, off by default, for backwards compatibility
* Fix unit tests
* Address some feedback
* Set config on unit test
* Fix another test failure
* One more conf fail
* Switch one of the test cases to not use a derive dkey
* wip
* comments
For situations where you want the Vault agent to handle one or more templates but do not require the acquired credentials elsewhere.
Modify the logic in SyncServer so that if there are no sinks, ignore any new credentials. Since SyncServer is responsible for shutting down the agent, make sure it still properly shuts down in this new situation.
Solves #7988
* Simplify Run(): the function that was being sent over a channel doesn't
need to close over anything except latestToken, and we don't need to
create a new one each iteration. Instead just pass the relevant items,
namely the token and sink to work on.
* Disallow the following config combinations:
1. auto_auth.method.wrap_ttl > 0 and multiple file sinks
2. auto_auth.method.wrap_ttl > 0 and single file sink with wrap_ttl > 0
3. auto_auth.method.wrap_ttl > 0 and cache.use_auto_auth_token = true
* Expose errors that occur when APIProxy is forwarding request to Vault.
* Fix merge issues.
* Properly compute auto-auth token
* Use inmem sink to track auto-auth token
* update debug statement
* Only add inmem sink if using auto-auth token is allowed
The result will still pass gofmtcheck and won't trigger additional
changes if someone isn't using goimports, but it will avoid the
piecemeal imports changes we've been seeing.
This allows it to authenticate once, then exit once all sinks have
reported success. Useful for things like an init container vs. a
sidecard container.
Also adds command-level testing of it.
