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