AssumeRoleWithWebIdentity call.

2. `id_token` claims: When the role policy is not configured, MinIO looks for a specific claim in the `id_token` (JWT) returned by the OpenID provider in the STS request. The default claim is `policy` and can be overridden by the `claim_name` configuration parameter or the `MINIO_IDENTITY_OPENID_CLAIM_NAME` environment variable. The claim value can be a string (comma-separated list) or an array of IAM access policy names defined in the server. A `RoleArn` API request...

            {{- else }}
              value: {{ .Values.oidc.clientSecret }}
            {{- end }}
            - name: MINIO_IDENTITY_OPENID_CLAIM_NAME
              value: {{ .Values.oidc.claimName }}
            - name: MINIO_IDENTITY_OPENID_CLAIM_PREFIX
              value: {{ .Values.oidc.claimPrefix }}
            - name: MINIO_IDENTITY_OPENID_SCOPES
              value: {{ .Values.oidc.scopes }}

		}

		// Finally, if there is no parent policy, check if a policy claim is
		// present in the session token.
		if len(policies) == 0 {
			// If there is no parent policy mapping, we fall back to
			// using policy claim from JWT.
			policySet, ok := args.GetPolicies(iamPolicyClaimNameOpenID())
			if !ok {
				// When claims are set, it should have a policy claim field.
				return false
			}

// the i-th server in this will be applied the i-th policy in `rolePolicies`. If
// a rolePolicies entry is an empty string, that server will be configured as
// policy-claim based openid server. NOTE that a valid configuration can have a
// policy claim based provider only if it is the only OpenID provider.
func (s *TestSuiteIAM) SetUpOpenIDs(c *check, testApps []OpenIDClientAppParams, rolePolicies []string) error {

### Existing PersistentVolumeClaim

If a Persistent Volume Claim already exists, specify it during installation.

1. Create the PersistentVolume
2. Create the PersistentVolumeClaim
3. Install the chart

```bash
helm install --set persistence.existingClaim=PVC_NAME minio/minio

## ref: http://kubernetes.io/docs/user-guide/persistent-volumes/
##
persistence:
  enabled: true
  annotations: {}

  ## A manually managed Persistent Volume and Claim
  ## Requires persistence.enabled: true
  ## If defined, PVC must be created manually before volume will be bound
  existingClaim: ""

  ## minio data Persistent Volume Storage Class

	// secret key, temporary credentials become invalid if
	// server admin credentials change. This is done to ensure
	// that clients cannot decode the token using the temp
	// secret keys and generate an entirely new claim by essentially
	// hijacking the policies. We need to make sure that this is
	// based on admin credential such that token cannot be decoded
	// on the client side and is treated like an opaque value.

},"identity_openid":{"_":[{"key":"enable","value":""},{"key":"display_name","value":""},{"key":"config_url","value":""},{"key":"client_id","value":""},{"key":"client_secret","value":""},{"key":"claim_name","value":"policy"},{"key":"claim_userinfo","value":""},{"key":"role_policy","value":""},{"key":"claim_prefix","value":""},{"key":"redirect_uri","value":""},{"key":"redirect_uri_dynamic","value":"off"},{"key":"scopes","value":""},{"key":"vendor","value":""},{"key":"keycloak_realm","value":""},{"...

		vStr, ok := v.(string)
		if ok {
			// Trim any LDAP specific prefix
			args[strings.ToLower(strings.TrimPrefix(k, "ldap"))] = []string{vStr}
		}
	}

	// Add groups claim which could be a list. This will ensure that the claim
	// `jwt:groups` works.
	if grpsVal, ok := claims["groups"]; ok {
		if grpsIs, ok := grpsVal.([]interface{}); ok {
			grps := []string{}
			for _, gI := range grpsIs {

// or service credentials, mapped to all distinct roleARNs associated with the
// parent user. The dummy role ARN is associated with parent users from
// policy-claim based OpenID providers.
func (store *IAMStoreSys) GetAllParentUsers() map[string]ParentUserInfo {
	cache := store.rlock()
	defer store.runlock()

	res := map[string]ParentUserInfo{}