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minio-kv

minio-kv creates a simple key-value store from Minio or AWS S3. It adds a simple HTTP API for storing JSON documents and binary blobs with streaming capabilities.

Usage

  • Putting a JSON object:

    URI: /put/{object:[a-zA-Z0-9.-_]+}

    Request Body: contents of object

  • Getting a JSON object:

    URI: /get/{object:[a-zA-Z0-9.-_]+}

    Response body: contents of object if found

  • Putting a binary object with streaming:

    URI: /put-streaming-blob/{object:[a-zA-Z0-9.-_]+}

    Request Body: contents of object

  • Getting a binary object with streaming:

    URI: /put-streaming-blob/{object:[a-zA-Z0-9.-_]+}

    Response body: contents of object if found

  • Putting a binary object without streaming:

    URI: /put-blob/{object:[a-zA-Z0-9.-_]+}

    Request Body: contents of object

  • Getting a binary object without streaming:

    URI: /put-blob/{object:[a-zA-Z0-9.-_]+}

    Response body: contents of object if found

Status

Suitable for testing and local use, authentication is not included in the HTTP API.

Backlog:

  • Add streaming modes
  • Migrate to Docker / Go 1.11
  • Use vendoring for dependencies
  • Add Kubernetes Deployment and Service
  • Read secrets from either env-var or from files mounted at path
  • Add auth for all HTTP APIs using shared secret Bearer token

Testing

docker run -e MINIO_ACCESS_KEY=511e8d6c84ee65feda34efdcc5366281a22b6dfd -e MINIO_SECRET_KEY=d88b4816ac11f0ee5efcc5282d2fe9896162a1d6 --name minio -p 9000:9000 minio/minio server /tmp/

Run the app

go build && port=8081 host=127.0.0.1:9000 MINIO_ACCESS_KEY=511e8d6c84ee65feda34efdcc5366281a22b6dfd MINIO_SECRET_KEY=d88b4816ac11f0
ee5efcc5282d2fe9896162a1d6 ./minio-kv

Get/put a big binary file:

curl localhost:8081/put-blob-stream/test --data-binary @big-file.img
curl localhost:8081/get-blob-stream/test > big-file-out.img

diff big-file.img big-file-out.img

Running on Kubernetes

Create MINIO_ACCESS_KEY, MINIO_SECRET_KEY environment variables

MINIO_ACCESS_KEY=$(head -c 12 /dev/urandom | shasum | cut -d  ' ' -f1) \
MINIO_SECRET_KEY=$(head -c 12 /dev/urandom | shasum | cut -d  ' ' -f1) \
TOKEN=$(head -c 12 /dev/urandom | shasum | cut -d  ' ' -f1)

Create secrets out of the above env vars

kubectl create secret generic minio-kv \
--from-literal=minio-access-key=$MINIO_ACCESS_KEY \
--from-literal=minio-secret-key=$MINIO_SECRET_KEY \
--from-literal=token=$TOKEN

(If Helm is not installed) Follow the instructions here.

Install Minio with Helm

helm install --name minio --namespace default \
   --set accessKey="$MINIO_ACCESS_KEY" \
   --set secretKey="$MINIO_SECRET_KEY" \
   --set replicas=1 \
   --set persistence.enabled=false \
   --set service.port=9000 \
   --set service.type=ClusterIP \
stable/minio

Create the kubernetes deployment and service

kubectl apply -f yaml/

License

MIT, Alex Ellis 2017-2019