[Pod Identity Associations] Don't allow --create-service-account fl…

…ag when `--config-file` is set (eksctl-io#7789)

don't allow --create-service-account flag when --config-file is set

pkg/ctl/cmdutils/pod_identity_association.go

@@ -19,6 +19,7 @@ var (
 		"permission-boundary-arn",
 		"permission-policy-arn",
 		"well-known-policies",
+		"create-service-account",
 	}
 )
 

pkg/ctl/create/pod_identity_association_test.go

@@ -49,6 +49,10 @@ var _ = Describe("create pod identity association", func() {
 			args:        []string{"--service-account-name", "test-sa-name", "--config-file", configFile},
 			expectedErr: "cannot use --service-account-name when --config-file/-f is set",
 		}),
+		Entry("setting --create-service-account and --config-file at the same time", createPodIdentityAssociationEntry{
+			args:        []string{"--create-service-account", "--config-file", configFile},
+			expectedErr: "cannot use --create-service-account when --config-file/-f is set",
+		}),
 		Entry("missing all --role-arn, --permission-policy-arns and --well-known-policies", createPodIdentityAssociationEntry{
 			args:        defaultArgs,
 			expectedErr: "at least one of the following flags must be specified: --role-arn, --permission-policy-arns, --well-known-policies",