crypto: deprecate native Hashicorp Vault support (#11352)
This commit deprecates the native Hashicorp Vault support and removes the legacy Vault documentation. The native Hashicorp Vault documentation is marked as outdated and deprecated for over a year now. We give another 6 months before we start removing Hashicorp Vault support and show a deprecation warning when a MinIO server starts with a native Vault configuration.master
Andreas Auernhammer
4 years ago
committed by
GitHub
parent
451d9057f3
commit
33554651e9
@ -1,18 +0,0 @@ |
||||
{ |
||||
"api_addr": "https://127.0.0.1:8200", |
||||
"backend": { |
||||
"file": { |
||||
"path": "vault/file" |
||||
} |
||||
}, |
||||
"default_lease_ttl": "168h", |
||||
"max_lease_ttl": "720h", |
||||
"listener": { |
||||
"tcp": { |
||||
"address": "0.0.0.0:8200", |
||||
"tls_cert_file": "vault-tls.crt", |
||||
"tls_key_file": "vault-tls.key", |
||||
"tls_min_version": "tls12" |
||||
} |
||||
} |
||||
} |
||||
@ -1,269 +0,0 @@ |
||||
# KMS Quickstart Guide [](https://slack.min.io) |
||||
|
||||
MinIO uses a key-management-system (KMS) to support SSE-S3. If a client requests SSE-S3, or auto-encryption |
||||
is enabled, the MinIO server encrypts each object with an unique object key which is protected by a master key |
||||
managed by the KMS. Usually all object keys are protected by a single master key. |
||||
|
||||
MinIO supports two different KMS concepts: |
||||
- External KMS: |
||||
MinIO can be configured to use an external KMS i.e. [Hashicorp Vault](https://www.vaultproject.io/). |
||||
An external KMS decouples MinIO as storage system from key-management. An external KMS can |
||||
be managed by a dedicated security team and allows you to grant/deny access to (certain) objects |
||||
by enabling or disabling the corresponding master keys on demand. |
||||
|
||||
- Direct KMS master keys: |
||||
MinIO can also be configured to directly use a master key specified by the environment variable `MINIO_KMS_MASTER_KEY` or with a docker secret key. |
||||
Direct master keys are useful if the storage backend is not on the same machine as the MinIO server, e.g., |
||||
if network drives or MinIO gateway is used and an external KMS would cause too much management overhead. |
||||
|
||||
Note: KMS master keys are mainly for testing purposes. It's not recommended to use them for production deployments. |
||||
Further if the MinIO server machine is ever compromised, then the master key must also be treated as compromised. |
||||
|
||||
**Important:** |
||||
If multiple MinIO servers are configured as [gateways](https://github.com/minio/minio/blob/master/docs/gateway/README.md) pointing to the *same* backend - for example the same NAS storage - then the KMS configuration **must** be the same for all gateways. Otherwise one gateway may not be able to decrypt objects created by another gateway. It is the operator responsibility to ensure consistency. |
||||
|
||||
## Get started |
||||
|
||||
### 1. Prerequisites |
||||
Install MinIO - [MinIO Quickstart Guide](https://docs.min.io/docs/minio-quickstart-guide). |
||||
|
||||
### 2. Setup a KMS |
||||
|
||||
Either use Hashicorp Vault as external KMS or specify a master key directly depending on your use case. |
||||
|
||||
#### 2.1 Setup Hashicorp Vault |
||||
|
||||
Here is a sample quick start for configuring vault with a transit backend and Approle with correct policy |
||||
|
||||
MinIO requires the following Vault setup: |
||||
- The [transit backend](https://www.vaultproject.io/api/secret/transit/index.html) configured with a named encryption key-ring |
||||
- [AppRole](https://www.vaultproject.io/docs/auth/approle.html) based authentication with read/update policy for transit backend. In particular, read and update policy are required for the [Generate Data Key](https://www.vaultproject.io/api/secret/transit/index.html#generate-data-key) endpoint and [Decrypt Data](https://www.vaultproject.io/api/secret/transit/index.html#decrypt-data) endpoint. |
||||
|
||||
**2.1.1 Start Vault server** |
||||
|
||||
Vault requires access to `mlock` syscall by default. Use `setcap` to give the Vault executable the ability to use the `mlock` syscall without running the process as root. To do so run: |
||||
``` |
||||
sudo setcap cap_ipc_lock=+ep $(readlink -f $(which vault)) |
||||
``` |
||||
|
||||
Create `vault-config.json` to use file backend and start the server. |
||||
``` |
||||
cat > vault-config.json <<EOF |
||||
{ |
||||
"api_addr": "http://127.0.0.1:8200", |
||||
"backend": { |
||||
"file": { |
||||
"path": "vault/file" |
||||
} |
||||
}, |
||||
"default_lease_ttl": "168h", |
||||
"max_lease_ttl": "720h", |
||||
"listener": { |
||||
"tcp": { |
||||
"address": "0.0.0.0:8200", |
||||
"tls_disable": true |
||||
} |
||||
}, |
||||
"ui": true |
||||
} |
||||
EOF |
||||
|
||||
vault server -config vault-config.json |
||||
``` |
||||
|
||||
> NOTE: In this example we use `"tls_disable": true` for demonstration purposes only, |
||||
> in production setup you should generate proper TLS certificates by specifying |
||||
> - [`tls_cert_file`](https://www.vaultproject.io/docs/configuration/listener/tcp.html#tls_cert_file) |
||||
> - [`tls_key_file`](https://www.vaultproject.io/docs/configuration/listener/tcp.html#tls_key_file) |
||||
|
||||
|
||||
**2.1.2 Initialize vault and unseal it** |
||||
|
||||
``` |
||||
export VAULT_ADDR='http://127.0.0.1:8200' |
||||
vault operator init |
||||
Unseal Key 1: eyW/+8ZtsgT81Cb0e8OVxzJAQP5lY7Dcamnze+JnWEDT |
||||
Unseal Key 2: 0tZn+7QQCxphpHwTm6/dC3LpP5JGIbYl6PK8Sy79R+P2 |
||||
Unseal Key 3: cmhs+AUMXUuB6Lzsvgcbp3bRT6VDGQjgCBwB2xm0ANeF |
||||
Unseal Key 4: /fTPpec5fWpGqWHK+uhnnTNMQyAbl5alUi4iq2yNgyqj |
||||
Unseal Key 5: UPdDVPto+H6ko+20NKmagK40MOskqOBw4y/S51WpgVy/ |
||||
|
||||
Initial Root Token: s.zaU4Gbcu0Wh46uj2V3VuUde0 |
||||
|
||||
Vault is initialized with 5 key shares and a key threshold of 3. Please securely |
||||
distribute the key shares printed above. When the Vault is re-sealed, |
||||
restarted, or stopped, you must supply at least 3 of these keys to unseal it |
||||
before it can start servicing requests. |
||||
|
||||
Vault does not store the generated master key. Without at least 3 key to |
||||
reconstruct the master key, Vault will remain permanently sealed! |
||||
|
||||
It is possible to generate new unseal keys, provided you have a quorum of |
||||
existing unseal keys shares. See "vault operator rekey" for more information. |
||||
``` |
||||
|
||||
Use any of the previously generated keys to unseal the vault |
||||
``` |
||||
vault operator unseal eyW/+8ZtsgT81Cb0e8OVxzJAQP5lY7Dcamnze+JnWEDT |
||||
vault operator unseal 0tZn+7QQCxphpHwTm6/dC3LpP5JGIbYl6PK8Sy79R+P2 |
||||
vault operator unseal cmhs+AUMXUuB6Lzsvgcbp3bRT6VDGQjgCBwB2xm0ANeF |
||||
Key Value |
||||
--- ----- |
||||
Seal Type shamir |
||||
Initialized true |
||||
Sealed false ---> NOTE: vault is unsealed |
||||
Total Shares 5 |
||||
Threshold 3 |
||||
Version 1.1.3 |
||||
Cluster Name vault-cluster-3f084948 |
||||
Cluster ID 8c92e999-7062-4da6-4434-0fc05f34824d |
||||
HA Enabled false |
||||
``` |
||||
|
||||
Obtain root token from the `vault operator init` output above. It is displayed as `Initial Root Token: s.zaU4Gbcu0Wh46uj2V3VuUde0` |
||||
|
||||
**2.1.3 Set up vault transit backend and create an app role** |
||||
``` |
||||
export VAULT_TOKEN=s.zaU4Gbcu0Wh46uj2V3VuUde0 |
||||
|
||||
vault auth enable approle # enable approle style auth |
||||
vault secrets enable transit # enable transit secrets engine |
||||
# define an encryption key-ring for the transit path |
||||
vault write -f transit/keys/my-minio-key |
||||
|
||||
cat > vaultpolicy.hcl <<EOF |
||||
path "transit/datakey/plaintext/my-minio-key" { |
||||
capabilities = [ "read", "update"] |
||||
} |
||||
path "transit/decrypt/my-minio-key" { |
||||
capabilities = [ "read", "update"] |
||||
} |
||||
path "transit/rewrap/my-minio-key" { |
||||
capabilities = ["update"] |
||||
} |
||||
|
||||
EOF |
||||
|
||||
# define a policy for AppRole to access transit path |
||||
vault policy write minio-policy ./vaultpolicy.hcl |
||||
|
||||
# period indicates it is renewable if token is renewed before the period is over |
||||
vault write auth/approle/role/my-role token_num_uses=0 secret_id_num_uses=0 period=5m |
||||
|
||||
# define an AppRole |
||||
vault write auth/approle/role/my-role policies=minio-policy # apply policy to role |
||||
vault read auth/approle/role/my-role/role-id # get Approle ID |
||||
Key Value |
||||
--- ----- |
||||
role_id 8c03926c-6c51-7a1d-cf7d-62e48ab8d6d7 |
||||
|
||||
vault write -f auth/approle/role/my-role/secret-id |
||||
Key Value |
||||
--- ----- |
||||
secret_id edd8738c-6efe-c226-74f9-ef5b66e119d7 |
||||
secret_id_accessor 57d1db64-6350-c321-4a3e-fc6aeb7d00b6 |
||||
``` |
||||
|
||||
The AppRole ID, AppRole Secret Id, Vault endpoint and Vault key name can now be used to start minio server with Vault as KMS. |
||||
|
||||
**2.1.3 Vault Environment variables** |
||||
|
||||
You'll need the Vault endpoint, AppRole ID, AppRole SecretID and encryption key-ring name defined in step 2.1.2 |
||||
|
||||
``` |
||||
export MINIO_KMS_VAULT_APPROLE_ID=8c03926c-6c51-7a1d-cf7d-62e48ab8d6d7 |
||||
export MINIO_KMS_VAULT_APPROLE_SECRET=edd8738c-6efe-c226-74f9-ef5b66e119d7 |
||||
export MINIO_KMS_VAULT_ENDPOINT=http://vault-endpoint-ip:8200 |
||||
export MINIO_KMS_VAULT_KEY_NAME=my-minio-key |
||||
export MINIO_KMS_VAULT_AUTH_TYPE=approle |
||||
minio server ~/export |
||||
``` |
||||
|
||||
Optionally, set `MINIO_KMS_VAULT_CAPATH` to a directory of PEM-encoded CA cert files to use mTLS for client-server authentication. |
||||
|
||||
``` |
||||
export MINIO_KMS_VAULT_CAPATH=/home/user/custom-certs |
||||
``` |
||||
|
||||
An additional option is to set `MINIO_KMS_VAULT_NAMESPACE` if AppRole and Transit Secrets engine have been scoped to Vault Namespace |
||||
|
||||
``` |
||||
export MINIO_KMS_VAULT_NAMESPACE=ns1 |
||||
``` |
||||
|
||||
Note: If [Vault Namespaces](https://learn.hashicorp.com/vault/operations/namespaces) are in use, MINIO_KMS_VAULT_VAULT_NAMESPACE variable needs to be set before setting approle and transit secrets engine. |
||||
|
||||
#### 2.2 Specify a master key |
||||
|
||||
**2.2.1 KMS master key from environment variables** |
||||
|
||||
A KMS master key consists of a master-key ID (CMK) and the 256 bit master key encoded as HEX value separated by a `:`. |
||||
A KMS master key can be specified directly using: |
||||
|
||||
``` |
||||
export MINIO_KMS_MASTER_KEY=my-minio-key:6368616e676520746869732070617373776f726420746f206120736563726574 |
||||
``` |
||||
|
||||
Please use your own master key. A random master key can be generated using e.g. this command on Linux/Mac/BSD* systems: |
||||
|
||||
``` |
||||
head -c 32 /dev/urandom | xxd -c 32 -ps |
||||
``` |
||||
|
||||
**2.2.2 KMS master key from docker secret** |
||||
|
||||
Alternatively, you may pass a master key as a [Docker secret](https://docs.docker.com/engine/swarm/secrets/). |
||||
|
||||
```bash |
||||
echo "my-minio-key:6368616e676520746869732070617373776f726420746f206120736563726574" | docker secret create kms_master_key |
||||
``` |
||||
|
||||
Obviously, do not use this demo key for anything real! |
||||
|
||||
To use another secret name, follow the instructions above and replace kms_master_key with your custom names (e.g. my_kms_master_key). Then, set the MINIO_KMS_MASTER_KEY_FILE environment variable to your secret name: |
||||
|
||||
```bash |
||||
export MINIO_KMS_MASTER_KEY_FILE=my_kms_master_key |
||||
``` |
||||
|
||||
### 3. Test your setup |
||||
To test this setup, start minio server with environment variables set in Step 3, and server is ready to handle SSE-S3 requests. |
||||
|
||||
### Auto-Encryption |
||||
|
||||
MinIO can also enable auto-encryption **if** a valid KMS configuration is specified and the storage backend supports |
||||
encrypted objects. Auto-Encryption, if enabled, ensures that all uploaded objects are encrypted using the specified |
||||
KMS configuration. |
||||
|
||||
Auto-Encryption is useful especially if the MinIO operator wants to ensure that objects are **never** stored in |
||||
plaintext - for example if sensitive data is stored on public cloud storage. |
||||
|
||||
To enable auto-encryption set the environment variable to `on`: |
||||
|
||||
``` |
||||
export MINIO_KMS_AUTO_ENCRYPTION=on |
||||
``` |
||||
|
||||
To verify auto-encryption, use the `mc` command: |
||||
|
||||
``` |
||||
mc cp test.file myminio/crypt/ |
||||
test.file: 5 B / 5 B ▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓▓ 100.00% 337 B/s 0s |
||||
mc stat myminio/crypt/test.file |
||||
Name : test.file |
||||
... |
||||
Encrypted : |
||||
X-Amz-Server-Side-Encryption: AES256 |
||||
``` |
||||
|
||||
Note: Auto-Encryption only affects non-SSE-C requests since objects uploaded using SSE-C are already encrypted |
||||
and S3 only allows either SSE-S3 or SSE-C but not both for the same object. |
||||
|
||||
# Explore Further |
||||
|
||||
- [Use `mc` with MinIO Server](https://docs.min.io/docs/minio-client-quickstart-guide) |
||||
- [Use `aws-cli` with MinIO Server](https://docs.min.io/docs/aws-cli-with-minio) |
||||
- [Use `s3cmd` with MinIO Server](https://docs.min.io/docs/s3cmd-with-minio) |
||||
- [Use `minio-go` SDK with MinIO Server](https://docs.min.io/docs/golang-client-quickstart-guide) |
||||
- [The MinIO documentation website](https://docs.min.io) |
||||
|
||||
Loading…
Reference in new issue