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Diffstat (limited to 'vendor/google.golang.org/grpc/internal/envconfig/xds.go')
| -rw-r--r-- | vendor/google.golang.org/grpc/internal/envconfig/xds.go | 101 |
1 files changed, 101 insertions, 0 deletions
diff --git a/vendor/google.golang.org/grpc/internal/envconfig/xds.go b/vendor/google.golang.org/grpc/internal/envconfig/xds.go new file mode 100644 index 0000000..af09711 --- /dev/null +++ b/vendor/google.golang.org/grpc/internal/envconfig/xds.go @@ -0,0 +1,101 @@ +/* + * + * Copyright 2020 gRPC authors. + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + * + */ + +package envconfig + +import ( + "os" + "strings" +) + +const ( + // XDSBootstrapFileNameEnv is the env variable to set bootstrap file name. + // Do not use this and read from env directly. Its value is read and kept in + // variable XDSBootstrapFileName. + // + // When both bootstrap FileName and FileContent are set, FileName is used. + XDSBootstrapFileNameEnv = "GRPC_XDS_BOOTSTRAP" + // XDSBootstrapFileContentEnv is the env variable to set bootstrap file + // content. Do not use this and read from env directly. Its value is read + // and kept in variable XDSBootstrapFileContent. + // + // When both bootstrap FileName and FileContent are set, FileName is used. + XDSBootstrapFileContentEnv = "GRPC_XDS_BOOTSTRAP_CONFIG" + + ringHashSupportEnv = "GRPC_XDS_EXPERIMENTAL_ENABLE_RING_HASH" + clientSideSecuritySupportEnv = "GRPC_XDS_EXPERIMENTAL_SECURITY_SUPPORT" + aggregateAndDNSSupportEnv = "GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER" + rbacSupportEnv = "GRPC_XDS_EXPERIMENTAL_RBAC" + outlierDetectionSupportEnv = "GRPC_EXPERIMENTAL_ENABLE_OUTLIER_DETECTION" + federationEnv = "GRPC_EXPERIMENTAL_XDS_FEDERATION" + rlsInXDSEnv = "GRPC_EXPERIMENTAL_XDS_RLS_LB" + + c2pResolverTestOnlyTrafficDirectorURIEnv = "GRPC_TEST_ONLY_GOOGLE_C2P_RESOLVER_TRAFFIC_DIRECTOR_URI" +) + +var ( + // XDSBootstrapFileName holds the name of the file which contains xDS + // bootstrap configuration. Users can specify the location of the bootstrap + // file by setting the environment variable "GRPC_XDS_BOOTSTRAP". + // + // When both bootstrap FileName and FileContent are set, FileName is used. + XDSBootstrapFileName = os.Getenv(XDSBootstrapFileNameEnv) + // XDSBootstrapFileContent holds the content of the xDS bootstrap + // configuration. Users can specify the bootstrap config by setting the + // environment variable "GRPC_XDS_BOOTSTRAP_CONFIG". + // + // When both bootstrap FileName and FileContent are set, FileName is used. + XDSBootstrapFileContent = os.Getenv(XDSBootstrapFileContentEnv) + // XDSRingHash indicates whether ring hash support is enabled, which can be + // disabled by setting the environment variable + // "GRPC_XDS_EXPERIMENTAL_ENABLE_RING_HASH" to "false". + XDSRingHash = !strings.EqualFold(os.Getenv(ringHashSupportEnv), "false") + // XDSClientSideSecurity is used to control processing of security + // configuration on the client-side. + // + // Note that there is no env var protection for the server-side because we + // have a brand new API on the server-side and users explicitly need to use + // the new API to get security integration on the server. + XDSClientSideSecurity = !strings.EqualFold(os.Getenv(clientSideSecuritySupportEnv), "false") + // XDSAggregateAndDNS indicates whether processing of aggregated cluster + // and DNS cluster is enabled, which can be enabled by setting the + // environment variable + // "GRPC_XDS_EXPERIMENTAL_ENABLE_AGGREGATE_AND_LOGICAL_DNS_CLUSTER" to + // "true". + XDSAggregateAndDNS = !strings.EqualFold(os.Getenv(aggregateAndDNSSupportEnv), "false") + + // XDSRBAC indicates whether xDS configured RBAC HTTP Filter is enabled, + // which can be disabled by setting the environment variable + // "GRPC_XDS_EXPERIMENTAL_RBAC" to "false". + XDSRBAC = !strings.EqualFold(os.Getenv(rbacSupportEnv), "false") + // XDSOutlierDetection indicates whether outlier detection support is + // enabled, which can be disabled by setting the environment variable + // "GRPC_EXPERIMENTAL_ENABLE_OUTLIER_DETECTION" to "false". + XDSOutlierDetection = !strings.EqualFold(os.Getenv(outlierDetectionSupportEnv), "false") + // XDSFederation indicates whether federation support is enabled. + XDSFederation = strings.EqualFold(os.Getenv(federationEnv), "true") + + // XDSRLS indicates whether processing of Cluster Specifier plugins and + // support for the RLS CLuster Specifier is enabled, which can be enabled by + // setting the environment variable "GRPC_EXPERIMENTAL_XDS_RLS_LB" to + // "true". + XDSRLS = strings.EqualFold(os.Getenv(rlsInXDSEnv), "true") + + // C2PResolverTestOnlyTrafficDirectorURI is the TD URI for testing. + C2PResolverTestOnlyTrafficDirectorURI = os.Getenv(c2pResolverTestOnlyTrafficDirectorURIEnv) +) |