https://github.com/jordic/kubecron
A simple kubernetes cron
https://github.com/jordic/kubecron
Last synced: about 1 month ago
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A simple kubernetes cron
- Host: GitHub
- URL: https://github.com/jordic/kubecron
- Owner: jordic
- Created: 2016-06-28T04:49:25.000Z (almost 9 years ago)
- Default Branch: master
- Last Pushed: 2016-06-28T17:12:33.000Z (almost 9 years ago)
- Last Synced: 2025-03-22T15:02:07.131Z (2 months ago)
- Language: Go
- Size: 960 KB
- Stars: 12
- Watchers: 1
- Forks: 1
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
## kubecron
A simple kubernetes cron system
## Description
A simple kubernetes cron system based on the google/cloud-sdk image. The main idea is to have a running pod, that will execute commands, and also have inside it the kubectl tools.
You can build periodic tasks that manage your app or your cluster.
- Every task is a shell script / program binary ... like (bin/show_pods.sh)
- Add scripts to cron.json
- The format for time is based on http://github.com/robfig/cron
- Every time you need to update the cron, just build a new container and update your rc.
## Why
- More easy than configure a cron container
- Logs (stderr, stdout) are forwaded to console
- Tasks and cron are on source tree.
## Howto
- Create your script and add them to bin
- Add the entry to cron.json, format:
```
{
"cmd": "/bin/show_pods.sh",
"when": "@every 2h"
}
```
- Install your cron on kubernetes (Must be done only the first time)
Add your docker image to k8.yml and
```
make create_rc
```
check that the pod is present:
```
kubectl get rc kubecron
```
- Update:
Add your scripts, and run make update
This will recreate your image, push it and do a rolling-update
- Develop:
For recompiling, or changing the cron.go, you will need a go dev env,
and source the init.sh first . (This will add src/tmpo.io to your GOPATH)
## Improvements, feature plans an ideas.
Make the cron.json curl downloadable.. (on gcloud, s3... )
## Contribute
Just fill up issues and make pull requests.