Adding an s3 default provisioner based on minio

[astromechza]

Fixes: #65

This PR brings some much needed compatibility with score-compose by adding an s3 bucket provisioner by default using an in-cluster object storage based on minio.

This follows the current best practises of k8s provisioner development:

1. A single minio instance is created with stateful set and PVC based data storage. The pods run as non-root.
2. A k8s Service is created routing both api and console ports to the minio instance.
3. An s3 bucket is created per s3 resource. We intentionally use a shared access key across all buckets for now to match score-compose behavior.
4. All secret outputs are encoded as references to in-cluster secrets.

testing

This was tested with the following score file:

apiVersion: score.dev/v1b1
metadata:
    name: demo-app
containers:
    main:
        image: quay.io/minio/minio
        command: ["/bin/bash", "-c", "sleep 3600"]
        variables:
            S3_ENDPOINT: ${resources.bucket-a.endpoint}
            S3_BUCKET: ${resources.bucket-a.bucket}
            S3_ACCESS_KEY_ID: ${resources.bucket-a.access_key_id}
            S3_SECRET_KEY: ${resources.bucket-a.secret_key}
resources:
    bucket-a:
        type: s3
    bucket-b:
        type: s3

This started up a pod with the minio object storage client cli.

I could then run the following:

$ mc alias set myminio $S3_ENDPOINT $S3_ACCESS_KEY_ID $S3_SECRET_KEY
...
Added `myminio` successfully.
$ mc ls myminio
[2024-11-22 09:23:22 UTC]     0B bucket-087c173f-4d3f-4a6b-e637-68d3ac846c34/
[2024-11-22 09:23:22 UTC]     0B bucket-927541d4-cb81-43b6-9722-3c5cceb8e9c0/
$ mc ls myminio/$S3_BUCKET
$ mc put ./etc/hostname myminio/$S3_BUCKET
/etc/hostname:               26 B / 26 B ┃▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓┃ 695 B/s 0s
$ mc ls myminio/$S3_BUCKET
[2024-11-22 09:40:30 UTC]    26B STANDARD hostname

I've also tested it with the following score file that uses a duckdb s3 client: https://gist.github.com/astromechza/b5cedbce68dd0baa6252728ff1de9505

[mathieu-benoit]

LGTM, wonderful!