Pick up some fixes from Consul:
* If a stream returns an EOF error, clear session from cache/pool and start a
new one.
* Close the codec when closing StreamClient
This fixes a bug where executor based drivers emit stats every second,
regardless of user configuration.
When serializing the Stats request across grpc, the nomad agent dropped
the Interval value, and then executor uses 1s as a default value.
Use secret ID for NOMAD_TOKEN as the accessor ID doesn't seem to work.
I tried with a local micro cluster following the tutorials, and if I do:
```console
$ export NOMAD_TOKEN=85310d07-9afa-ef53-0933-0c043cd673c7
```
Using the accessor ID as in this example, I get an error:
```
Error querying jobs: Unexpected response code: 403 (ACL token not found)
```
But when using the secret ID in that env var it seems to work correctly.
Introduce limits to prevent unauthorized users from exhausting all
ephemeral ports on agents:
* `{https,rpc}_handshake_timeout`
* `{http,rpc}_max_conns_per_client`
The handshake timeout closes connections that have not completed the TLS
handshake by the deadline (5s by default). For RPC connections this
timeout also separately applies to first byte being read so RPC
connections with TLS enabled have `rpc_handshake_time * 2` as their
deadline.
The connection limit per client prevents a single remote TCP peer from
exhausting all ephemeral ports. The default is 100, but can be lowered
to a minimum of 26. Since streaming RPC connections create a new TCP
connection (until MultiplexV2 is used), 20 connections are reserved for
Raft and non-streaming RPCs to prevent connection exhaustion due to
streaming RPCs.
All limits are configurable and may be disabled by setting them to `0`.
This also includes a fix that closes connections that attempt to create
TLS RPC connections recursively. While only users with valid mTLS
certificates could perform such an operation, it was added as a
safeguard to prevent programming errors before they could cause resource
exhaustion.
This change allows for providing the -suite=<Name> flag when
running the e2e framework. If set, only the matching e2e/Framework.TestSuite.Component
will be run, and all ther suites will be skipped.
Allows addressing servers with nomad monitor using the servers name or
ID.
Also unifies logic for addressing servers for client_agent_endpoint
commands and makes addressing logic region aware.
rpc getServer test
I assume this is just an oversight. I tried adding the `canary_meta` stanza to an existing v0.10.2 setup (Nomad v0.10.2 (0d2d6e3dc5a171c21f8f31fa117c8a765eb4fc02) and it did show the error message:
```
* group: 'ggg', task: 'tttt', invalid key: canary_meta
```
