open-nomad/.changelog/15842.txt

```release-note:improvement
client: Log task events at INFO log level
```
Add INFO task even log line and make logmon less noisy (#15842) * client: log task events at INFO level Fixes #15840 Example INFO level client logs with this enabled: ``` [INFO] client: node registration complete [INFO] client.alloc_runner.task_runner: Task event: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy type=Received msg="Task received by client" failed=false [INFO] client.alloc_runner.task_runner: Task event: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy type="Task Setup" msg="Building Task Directory" failed=false [WARN] client.alloc_runner.task_runner.task_hook.logmon: plugin configured with a nil SecureConfig: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy [INFO] client.alloc_runner.task_runner.task_hook.logmon.nomad: opening fifo: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy path=/tmp/NomadClient2414238708/b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51/alloc/logs/.sleepy.stdout.fifo @module=logmon timestamp=2023-01-20T11:19:34.275-0800 [INFO] client.alloc_runner.task_runner.task_hook.logmon.nomad: opening fifo: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy @module=logmon path=/tmp/NomadClient2414238708/b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51/alloc/logs/.sleepy.stderr.fifo timestamp=2023-01-20T11:19:34.275-0800 [INFO] client.driver_mgr.raw_exec: starting task: driver=raw_exec driver_cfg="{Command:/bin/bash Args:[-c sleep 1000]}" [WARN] client.driver_mgr.raw_exec.executor: plugin configured with a nil SecureConfig: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 driver=raw_exec task_name=sleepy [INFO] client.alloc_runner.task_runner: Task event: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy type=Started msg="Task started by client" failed=false [INFO] client.alloc_runner.task_runner: Task event: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy type=Killing msg="Sent interrupt. Waiting 5s before force killing" failed=false [INFO] client.driver_mgr.raw_exec.executor: plugin process exited: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 driver=raw_exec task_name=sleepy path=/home/schmichael/go/bin/nomad pid=27668 [INFO] client.alloc_runner.task_runner: Task event: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy type=Terminated msg="Exit Code: 130, Signal: 2" failed=false [INFO] client.alloc_runner.task_runner: Task event: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy type=Killed msg="Task successfully killed" failed=false [INFO] client.alloc_runner.task_runner.task_hook.logmon: plugin process exited: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 task=sleepy path=/home/schmichael/go/bin/nomad pid=27653 [INFO] client.gc: marking allocation for GC: alloc_id=b3dab5a9-91fd-da9a-ae89-ef7f1eceaf51 ``` So task events will approximately double the number of per-task log lines, but I think they add a lot of value. * client: drop logmon 'opening' from debug->info Cannot imagine why users care and removes 2 log lines per task invocation. ``` [INFO] client: node registration complete [INFO] client.alloc_runner.task_runner: Task event: alloc_id=1cafb2dc-302e-2c92-7845-f56618bc8648 task=sleepy type=Received msg="Task received by client" failed=false [INFO] client.alloc_runner.task_runner: Task event: alloc_id=1cafb2dc-302e-2c92-7845-f56618bc8648 task=sleepy type="Task Setup" msg="Building Task Directory" failed=false <<< 2 "opening fifo" lines elided here >>> [WARN] client.alloc_runner.task_runner.task_hook.logmon: plugin configured with a nil SecureConfig: alloc_id=1cafb2dc-302e-2c92-7845-f56618bc8648 task=sleepy [INFO] client.driver_mgr.raw_exec: starting task: driver=raw_exec driver_cfg="{Command:/bin/bash Args:[-c sleep 1000]}" [WARN] client.driver_mgr.raw_exec.executor: plugin configured with a nil SecureConfig: alloc_id=1cafb2dc-302e-2c92-7845-f56618bc8648 driver=raw_exec task_name=sleepy [INFO] client.alloc_runner.task_runner: Task event: alloc_id=1cafb2dc-302e-2c92-7845-f56618bc8648 task=sleepy type=Started msg="Task started by client" failed=false ``` * docs: add changelog for #15842 2023-01-20 22:35:00 +00:00			```release-note:improvement
			`client: Log task events at INFO log level`
			```