docs/source/includes/container/common-minio-kes.rst

The commands in this section create the following resources:

• A Podman Pod <markdown/podman-pod.1.html> to facilitate container communications
• A Container for the KES Server configured to use |rootkms| as the Root |KMS|.
• A Container for a MinIO Server running in Single-Node Single-Drive Mode <minio-snsd>.

sudo podman pod create  \
  -p 9000:9000 -p 9090:9090 -p 7373:7373  \
  -v |kescertpath|:/certs  \
  -v |miniodatapath|:/mnt/minio  \
  -v |kesconfigpath|:/etc/default/  \
  -n |namespace|

sudo podman run -dt  \
  --cap-add IPC_LOCK  \
  --name kes-server  \
  --pod "|namespace|"  \
  -e KES_SERVER=https://127.0.0.1:7373  \
  -e KES_CLIENT_KEY=/certs/kes-server.key  \
  -e KES_CLIENT_CERT=/certs/kes-server.cert  \
  quay.io/minio/kes:|kes-stable| server  \
    --auth  \
    --config=/etc/default/kes-config.yaml  \

sudo podman run -dt  \
  --name minio-server  \
  --pod "|namespace|"  \
  -e "MINIO_CONFIG_ENV_FILE=/etc/default/minio"  \
  quay.io/minio/minio:|minio-latest| server  \
    --console-address ":9090"

You can verify the status of the containers using the following commands:

# Should show three pods - one for the Pod, one for KES, and one for MinIO
sudo podman container ls

If all pods are operational, you can connect to the MinIO deployment by opening your browser to http://127.0.0.1:9000 and logging in with the root credentials specified in the MinIO environment file.

The following commands create two TLS certificates that expire within 30 days of creation:

• A TLS certificate for KES to secure communications between it and the |rootkms| service.
• A TLS certificate for MinIO to perform mTLS authentication to KES.

Use Caution in Production Environments

DO NOT use the TLS certificates generated as part of this procedure for any long-term development or production environments.

Defer to organization/industry best practices around TLS certificate generation and management. A complete guide to creating valid certificates (e.g. well-formed, current, and trusted) is beyond the scope of this procedure.

# These commands output keys to |kescertpath| and |miniocertpath| on the host operating system

podman run --rm  \
  -v |kescertpath|:/certs  \
  quay.io/minio/kes:|kes-stable| identity new  kes_server \
    --key  /certs/kes-server.key  \
    --cert /certs/kes-server.cert  \
    kes-server

podman run --rm  \
  -v |miniocertpath|:/certs  \
  quay.io/minio/kes:|kes-stable| identity new minio_server \
    --key  /certs/minio-kes.key  \
    --cert /certs/minio-kes.cert  \
    minio-server

This command assumes the minio-kes.cert, minio-kes.key, and kes-server.cert certificates are accessible at the specified location:

MINIO_ROOT_USER=myminioadmin
MINIO_ROOT_PASSWORD=minio-secret-key-change-me
MINIO_VOLUMES="/mnt/data"

# KES Configurations

MINIO_KMS_KES_ENDPOINT=https://127.0.0.1:7373
MINIO_KMS_KES_CERT_FILE=/certs/minio-kes.cert
MINIO_KMS_KES_KEY_FILE=/certs/minio-kes.key
MINIO_KMS_KES_CAPATH=/certs/server.cert
MINIO_KMS_KES_KEY_NAME=minio-backend-default-key

MinIO uses the MINIO_KMS_KES_KEY_NAME key for the following cryptographic operations:

• Encrypting the MinIO backend (IAM, configuration, etc.)
• Encrypting objects using SSE-KMS <minio-encryption-sse-kms> if the request does not include a specific |EK|.
• Encrypting objects using SSE-S3 <minio-encryption-sse-s3>.

The minio-kes certificates enable for mTLS between the MinIO deployment and the KES server only. They do not otherwise enable TLS for other client connections to MinIO.

KES automatically creates this key if it does not already exist on the root KMS.

Unseal Vault Before Creating Key

You must unseal the backing Vault instance before creating new encryption keys. See the Vault documentation on Seal/Unseal for more information.

MinIO requires that the |EK| exist on the root KMS before performing |SSE| operations using that key. Use kes key create or mc admin kms key create to create a new |EK| for use with |SSE|.

The following command uses the kes key create command to add a new External Key (EK) stored on the root KMS server for use with encrypting the MinIO backend.

sudo podman run --rm  \
  -v |kescertpath|:/certs  \
  -e KES_SERVER=https://127.0.0.1:7373  \
  -e KES_CLIENT_KEY=/certs/minio-kes.key  \
  -e KES_CLIENT_CERT=/certs/minio-kes.cert  \
  kes:|kes-stable| key create -k my-new-encryption-key

You can specify any key name as appropriate for your use case, such as a bucket-specific key minio-mydata-key.