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kubectl-persistent-logger
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An alternative kubectl logging implementation
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Rob Watson cbdcef097f
continuous-integration/drone/push Build is passing Details
Fix race condition in tests 
In normal usage, the io.Writer passed to the watcher is typically
`os.Stdout` and does not require locking because it is not being read
from inside the same process.

In tests however, the io.Writer was a *bytes.Buffer which is read
concurrently from another goroutine, introducing a race condition. This
fixes the issue in the test suite by introducing a wrapper around
*bytes.Buffer which implements the required locking.
 		2022-07-08 19:39:10 +02:00
logs Fix race condition in tests 2022-07-08 19:39:10 +02:00
.drone.yml drone.yml: use go test -race 2022-06-11 07:33:27 +02:00
.gitignore Add build script and basic versioning 2022-06-09 20:56:44 +02:00
README.md Add basic test coverage 2022-05-30 12:10:58 +02:00
build.sh build.sh: Fix variable name 2022-06-20 20:40:20 +02:00
go.mod watcher: implement RetryWatcher 2022-06-21 20:32:32 +02:00
go.sum watcher: implement RetryWatcher 2022-06-21 20:32:32 +02:00
main.go Handle namespace 2022-06-10 21:38:38 +02:00

README.md

kubectl persistent logger

A side project to re-implement kubectl logs with an interface that is friendlier for development usage. Specifically, this implementation automatically updates to follow logs for new pods added to deployments, and does not terminate upon pod termination, even if the replica count falls to zero.

Usage

To follow logs for all pods that are targeted by a specific deployment's selector:

go install git.netflux.io/rob/kubectl-persistent-logger
kubectl-persistent-logger -deployment mydeploymentname

TODO

  • Implement for other relevant resource types (replica set, stateful set)
  • Pass other options back to logger backend (--container, etc)
  • Test coverage
  • Improve context handling
  • Remove/hide debug logging

License

Copyright 2022 Rob Watson.

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.