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Connect to Vault using GCP IAM Auth Method
The KubeVault operator uses an AppBinding to connect to an externally provisioned Vault server. For GCP IAM authentication, it has to be enabled and configured in the Vault server. Follow the steps below to create an appropriate AppBinding:
You have to specify
spec.secretin the AppBinding.The specified secret must be in AppBinding’s namespace.
The type of the specified secret must be
"kubevault.com/gcp".The specified secret data can have the following key:
Secret.Data["sa.json"]:Required. Specifies the google application credentials.
The additional information required for the GCP IAM authentication method can be provided as AppBinding’s
spec.parameters.spec: parameters: apiVersion: config.kubevault.com/v1alpha1 kind: VaultServerConfiguration path: my-gcp vaultRole: demo-rolepath:optional. Specifies the path where GCP auth is enabled in Vault. If this path is not provided, the path will be set by default pathgcp.vaultRole:required. Specifies the name of the Vault auth role against which login will be performed.
Sample AppBinding and Secret is given below:
apiVersion: appcatalog.appscode.com/v1alpha1
kind: AppBinding
metadata:
name: vault-app
namespace: demo
spec:
secret:
name: gcp-cred
parameters:
apiVersion: config.kubevault.com/v1alpha1
kind: VaultServerConfiguration
path: my-gcp
vaultRole: demo-role
clientConfig:
service:
name: vault
scheme: HTTPS
port: 8200
caBundle: 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
apiVersion: v1
kind: Secret
metadata:
name: gcp-cred
namespace: demo
type: kubevault.com/gcp
data:
sa.json: ZXlKMGVYQWlPaUcFpDSTZJa2hDQ0o5LmV5SmhkV1FpT2lKpPaTh2YzNSekxuZHBibVJ2ZDNNdWJtVjBM