https://github.com/derlin/josdk-operator-dependent-crs
Little example of a java operator with three layers of dependent CRs
https://github.com/derlin/josdk-operator-dependent-crs
Last synced: about 1 month ago
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Little example of a java operator with three layers of dependent CRs
- Host: GitHub
- URL: https://github.com/derlin/josdk-operator-dependent-crs
- Owner: derlin
- Created: 2022-09-06T08:15:03.000Z (over 3 years ago)
- Default Branch: main
- Last Pushed: 2023-01-13T06:24:51.000Z (over 3 years ago)
- Last Synced: 2025-01-20T10:31:05.023Z (over 1 year ago)
- Language: Java
- Size: 28.3 KB
- Stars: 1
- Watchers: 2
- Forks: 0
- Open Issues: 0
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Metadata Files:
- Readme: README.md
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README
# JoSDK Operator Example with three layers dependent resources
This is a reproducible example of https://github.com/java-operator-sdk/java-operator-sdk/issues/1437.
Check the branches, as there may be multiple tests / proposed implementations:
* `config-cacher` branch: first try, using two reconcilers (one for config and one for db). The config is put in an application
cache. Problem: the cache is not always up-to-date, as db can be reconciled before configs.
* `primary-indexer`: a test based on the primary-indexer examples on JOSDK, but this doesn't work.
* `main`: previously called `primary-to-secondary`, the implementation that is for now working the best.
Comments may be added as issues to this repo.
## Samples
You can find example of CRs / secrets in `samples/` directory.
There is also some helm charts that can be used to create many CRs.
Create a default config (**IMPORTANT** you need to change the namespace on the samples first !!!):
```bash
# create a credentials secret and a default config once
kubectl apply -f samples/credentials-secret.yaml
kubectl apply -f samples/config.v1.yaml
```
Deploy or scale db CRs:
```bash
# create one db
helm install dbs helm-test/dbs --set num=1
# scale it to 10
helm upgrade dbs helm-test/dbs --set num=10
# scale it down to 3
helm upgrade dbs helm-test/dbs --set num=3
# ...
# delete
helm uninstall dbs helm-test/dbs
```
The same can be done with the `helm-test/configs` helm Chart (which uses the `credentials-secret`) by default.