Add stackdriver output plugin (#3876)
This commit is contained in:
James Maidment
Daniel Nelson
parent
ef848b4924
commit
0b601513a2
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@ -29,6 +29,14 @@
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revision = "2ce144541b8903101fb8f1483cc0497a68798122"
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version = "v0.3.0"
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[[projects]]
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digest = "1:5f61d4466cef935862c262f6bc00e24beb5b39b551e906f3cfb180dfac096d57"
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name = "contrib.go.opencensus.io/exporter/stackdriver"
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packages = ["propagation"]
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pruneopts = ""
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revision = "2b93072101d466aa4120b3c23c2e1b08af01541c"
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version = "v0.6.0"
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[[projects]]
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digest = "1:5923e22a060ab818a015593422f9e8a35b9d881d4cfcfed0669a82959b11c7ee"
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name = "github.com/Azure/go-autorest"
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@ -437,10 +445,14 @@
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name = "github.com/golang/protobuf"
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packages = [
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"proto",
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"protoc-gen-go/descriptor",
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"ptypes",
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"ptypes/any",
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"ptypes/duration",
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"ptypes/empty",
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"ptypes/struct",
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"ptypes/timestamp",
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"ptypes/wrappers",
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]
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pruneopts = ""
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revision = "b4deda0973fb4c70b50d226b1af49f3da59f5265"
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@ -467,6 +479,14 @@
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revision = "3af367b6b30c263d47e8895973edcca9a49cf029"
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version = "v0.2.0"
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[[projects]]
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digest = "1:e097a364f4e8d8d91b9b9eeafb992d3796a41fde3eb548c1a87eb9d9f60725cf"
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name = "github.com/googleapis/gax-go"
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packages = ["."]
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pruneopts = ""
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revision = "317e0006254c44a0ac427cc52a0e083ff0b9622f"
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version = "v2.0.0"
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[[projects]]
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digest = "1:c1d7e883c50a26ea34019320d8ae40fad86c9e5d56e63a1ba2cb618cef43e986"
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name = "github.com/google/uuid"
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@ -1035,6 +1055,37 @@
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pruneopts = ""
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revision = "46796da1b0b4794e1e341883a399f12cc7574b55"
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[[projects]]
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branch = "master"
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digest = "1:2fcfc6c3fb8dfe0d80d7789272230d3ac7db15022b66817113f98d9fff880225"
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name = "github.com/zensqlmonitor/go-mssqldb"
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packages = ["."]
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pruneopts = ""
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revision = "e8fbf836e44e86764eba398361d1825651709547"
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[[projects]]
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digest = "1:8c8ec859c77fccd10a347b7219b597c4c21c448949e8bdf3fc3e6f4c78f952b4"
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name = "go.opencensus.io"
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packages = [
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".",
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"internal",
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"internal/tagencoding",
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"plugin/ocgrpc",
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"plugin/ochttp",
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"plugin/ochttp/propagation/b3",
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"stats",
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"stats/internal",
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"stats/view",
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"tag",
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"trace",
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"trace/internal",
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"trace/propagation",
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"trace/tracestate",
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]
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pruneopts = ""
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revision = "79993219becaa7e29e3b60cb67f5b8e82dee11d6"
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version = "v0.17.0"
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[[projects]]
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branch = "master"
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digest = "1:0773b5c3be42874166670a20aa177872edb450cd9fc70b1df97303d977702a50"
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@ -1087,6 +1138,10 @@
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name = "golang.org/x/oauth2"
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packages = [
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".",
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"google",
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"internal",
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"jws",
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"jwt",
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"clientcredentials",
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"internal",
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]
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@ -1144,10 +1199,38 @@
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revision = "f21a4dfb5e38f5895301dc265a8def02365cc3d0"
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version = "v0.3.0"
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[[projects]]
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branch = "master"
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digest = "1:2d878ecef4b17dbdd067b8fb98eb64f768f0802b1176b91b9e3c01b457efd01f"
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name = "google.golang.org/api"
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packages = [
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"googleapi/transport",
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"internal",
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"iterator",
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"option",
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"transport",
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"transport/grpc",
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"transport/http",
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]
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pruneopts = ""
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revision = "19ff8768a5c0b8e46ea281065664787eefc24121"
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[[projects]]
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digest = "1:c1771ca6060335f9768dff6558108bc5ef6c58506821ad43377ee23ff059e472"
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name = "google.golang.org/appengine"
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packages = [
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".",
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"cloudsql",
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"internal",
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"internal/app_identity",
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"internal/base",
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"internal/datastore",
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"internal/log",
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"internal/modules",
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"internal/remote_api",
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"internal/socket",
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"internal/urlfetch",
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"socket",
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"cloudsql",
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"internal",
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"internal/base",
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@ -1165,7 +1248,16 @@
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branch = "master"
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digest = "1:b1443b4e3cc990c84d27fcdece9d3302158c67dba870e33a6937a2c0076388c2"
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name = "google.golang.org/genproto"
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packages = ["googleapis/rpc/status"]
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packages = [
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"googleapis/api/annotations",
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"googleapis/api/distribution",
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"googleapis/api/label",
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"googleapis/api/metric",
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"googleapis/api/monitoredres",
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"googleapis/monitoring/v3",
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"googleapis/rpc/status",
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"protobuf/field_mask",
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]
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pruneopts = ""
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revision = "fedd2861243fd1a8152376292b921b394c7bef7e"
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@ -1180,6 +1272,7 @@
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"codes",
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"connectivity",
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"credentials",
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"credentials/oauth",
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"encoding",
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"encoding/proto",
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"grpclog",
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@ -1303,6 +1396,7 @@
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analyzer-name = "dep"
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analyzer-version = 1
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input-imports = [
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"cloud.google.com/go/monitoring/apiv3",
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"collectd.org/api",
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"collectd.org/network",
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"github.com/Azure/go-autorest/autorest",
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@ -1336,6 +1430,7 @@
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"github.com/go-sql-driver/mysql",
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"github.com/gobwas/glob",
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"github.com/golang/protobuf/proto",
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"github.com/golang/protobuf/ptypes/timestamp",
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"github.com/google/go-cmp/cmp",
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"github.com/gorilla/mux",
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"github.com/hashicorp/consul/api",
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@ -1399,6 +1494,10 @@
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"golang.org/x/sys/windows",
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"golang.org/x/sys/windows/svc",
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"golang.org/x/sys/windows/svc/mgr",
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"google.golang.org/api/option",
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"google.golang.org/genproto/googleapis/api/metric",
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"google.golang.org/genproto/googleapis/api/monitoredres",
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"google.golang.org/genproto/googleapis/monitoring/v3",
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"google.golang.org/grpc",
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"google.golang.org/grpc/codes",
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"google.golang.org/grpc/credentials",
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File diff suppressed because it is too large
Load Diff
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@ -222,6 +222,10 @@
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source = "https://github.com/fsnotify/fsnotify/archive/v1.4.7.tar.gz"
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name = "gopkg.in/fsnotify.v1"
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[[constraint]]
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branch = "master"
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name = "google.golang.org/genproto"
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[[constraint]]
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name = "github.com/vmware/govmomi"
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version = "0.18.0"
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@ -28,5 +28,6 @@ import (
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_ "github.com/influxdata/telegraf/plugins/outputs/riemann"
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_ "github.com/influxdata/telegraf/plugins/outputs/riemann_legacy"
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_ "github.com/influxdata/telegraf/plugins/outputs/socket_writer"
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_ "github.com/influxdata/telegraf/plugins/outputs/stackdriver"
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_ "github.com/influxdata/telegraf/plugins/outputs/wavefront"
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)
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@ -0,0 +1,18 @@
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# Stackdriver Output Plugin
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This plugin writes to the [Google Cloud Stackdriver API](https://cloud.google.com/monitoring/api/v3/)
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and requires [authentication](https://cloud.google.com/docs/authentication/getting-started) with Google Cloud using either a service account or user credentials. See the [Stackdriver documentation](https://cloud.google.com/stackdriver/pricing#stackdriver_monitoring_services) for details on pricing.
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Requires `project` to specify where Stackdriver metrics will be delivered to.
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Metrics are grouped by the `namespace` variable and metric key - eg: `custom.googleapis.com/telegraf/system/load5`
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### Configuration
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```
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# GCP Project
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project = "erudite-bloom-151019"
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# The namespace for the metric descriptor
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namespace = "telegraf"
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```
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@ -0,0 +1,303 @@
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package stackdriver
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import (
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"context"
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"fmt"
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"log"
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"path"
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"github.com/influxdata/telegraf"
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"github.com/influxdata/telegraf/plugins/outputs"
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// Imports the Stackdriver Monitoring client package.
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monitoring "cloud.google.com/go/monitoring/apiv3"
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googlepb "github.com/golang/protobuf/ptypes/timestamp"
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metricpb "google.golang.org/genproto/googleapis/api/metric"
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monitoredrespb "google.golang.org/genproto/googleapis/api/monitoredres"
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monitoringpb "google.golang.org/genproto/googleapis/monitoring/v3"
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)
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// Stackdriver is the Google Stackdriver config info.
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type Stackdriver struct {
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Project string
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Namespace string
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client *monitoring.MetricClient
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}
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const (
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// QuotaLabelsPerMetricDescriptor is the limit
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// to labels (tags) per metric descriptor.
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QuotaLabelsPerMetricDescriptor = 10
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// QuotaStringLengthForLabelKey is the limit
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// to string length for label key.
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QuotaStringLengthForLabelKey = 100
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// QuotaStringLengthForLabelValue is the limit
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// to string length for label value.
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QuotaStringLengthForLabelValue = 1024
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// StartTime for cumulative metrics.
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StartTime = int64(1)
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// MaxInt is the max int64 value.
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MaxInt = int(^uint(0) >> 1)
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)
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var sampleConfig = `
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# GCP Project
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project = "erudite-bloom-151019"
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# The namespace for the metric descriptor
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namespace = "telegraf"
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`
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// Connect initiates the primary connection to the GCP project.
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func (s *Stackdriver) Connect() error {
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if s.Project == "" {
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return fmt.Errorf("Project is a required field for stackdriver output")
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}
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if s.Namespace == "" {
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return fmt.Errorf("Namespace is a required field for stackdriver output")
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}
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if s.client == nil {
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ctx := context.Background()
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client, err := monitoring.NewMetricClient(ctx)
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if err != nil {
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return err
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}
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s.client = client
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}
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return nil
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}
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// Write the metrics to Google Cloud Stackdriver.
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func (s *Stackdriver) Write(metrics []telegraf.Metric) error {
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ctx := context.Background()
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for _, m := range metrics {
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timeSeries := []*monitoringpb.TimeSeries{}
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for _, f := range m.FieldList() {
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value, err := getStackdriverTypedValue(f.Value)
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if err != nil {
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log.Printf("E! [output.stackdriver] get type failed: %s", err)
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continue
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}
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metricKind, err := getStackdriverMetricKind(m.Type())
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if err != nil {
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log.Printf("E! [output.stackdriver] get metric failed: %s", err)
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continue
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}
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timeInterval, err := getStackdriverTimeInterval(metricKind, StartTime, m.Time().Unix())
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if err != nil {
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log.Printf("E! [output.stackdriver] get time interval failed: %s", err)
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continue
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}
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// Prepare an individual data point.
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dataPoint := &monitoringpb.Point{
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Interval: timeInterval,
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Value: value,
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}
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// Prepare time series.
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timeSeries = append(timeSeries,
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&monitoringpb.TimeSeries{
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Metric: &metricpb.Metric{
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Type: path.Join("custom.googleapis.com", s.Namespace, m.Name(), f.Key),
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Labels: getStackdriverLabels(m.TagList()),
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},
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MetricKind: metricKind,
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Resource: &monitoredrespb.MonitoredResource{
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Type: "global",
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Labels: map[string]string{
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"project_id": s.Project,
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},
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},
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Points: []*monitoringpb.Point{
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dataPoint,
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},
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})
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}
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if len(timeSeries) < 1 {
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continue
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}
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// Prepare time series request.
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timeSeriesRequest := &monitoringpb.CreateTimeSeriesRequest{
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Name: monitoring.MetricProjectPath(s.Project),
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TimeSeries: timeSeries,
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}
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// Create the time series in Stackdriver.
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err := s.client.CreateTimeSeries(ctx, timeSeriesRequest)
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if err != nil {
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log.Printf("E! [output.stackdriver] unable to write to Stackdriver: %s", err)
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return err
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}
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}
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return nil
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}
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func getStackdriverTimeInterval(
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m metricpb.MetricDescriptor_MetricKind,
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start int64,
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end int64,
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) (*monitoringpb.TimeInterval, error) {
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switch m {
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case metricpb.MetricDescriptor_GAUGE:
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return &monitoringpb.TimeInterval{
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EndTime: &googlepb.Timestamp{
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Seconds: end,
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},
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}, nil
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case metricpb.MetricDescriptor_CUMULATIVE:
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return &monitoringpb.TimeInterval{
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StartTime: &googlepb.Timestamp{
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Seconds: start,
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},
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EndTime: &googlepb.Timestamp{
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Seconds: end,
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},
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}, nil
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case metricpb.MetricDescriptor_DELTA, metricpb.MetricDescriptor_METRIC_KIND_UNSPECIFIED:
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fallthrough
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default:
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return nil, fmt.Errorf("unsupported metric kind %T", m)
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}
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}
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func getStackdriverMetricKind(vt telegraf.ValueType) (metricpb.MetricDescriptor_MetricKind, error) {
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switch vt {
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case telegraf.Untyped:
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return metricpb.MetricDescriptor_GAUGE, nil
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case telegraf.Gauge:
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return metricpb.MetricDescriptor_GAUGE, nil
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case telegraf.Counter:
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return metricpb.MetricDescriptor_CUMULATIVE, nil
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case telegraf.Histogram, telegraf.Summary:
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fallthrough
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default:
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return metricpb.MetricDescriptor_METRIC_KIND_UNSPECIFIED, fmt.Errorf("unsupported telegraf value type")
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}
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}
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func getStackdriverTypedValue(value interface{}) (*monitoringpb.TypedValue, error) {
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switch v := value.(type) {
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case uint64:
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if v <= uint64(MaxInt) {
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return &monitoringpb.TypedValue{
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Value: &monitoringpb.TypedValue_Int64Value{
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Int64Value: int64(v),
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},
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}, nil
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}
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return &monitoringpb.TypedValue{
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Value: &monitoringpb.TypedValue_Int64Value{
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Int64Value: int64(MaxInt),
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},
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}, nil
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case int64:
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return &monitoringpb.TypedValue{
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Value: &monitoringpb.TypedValue_Int64Value{
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Int64Value: int64(v),
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},
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}, nil
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case float64:
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return &monitoringpb.TypedValue{
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Value: &monitoringpb.TypedValue_DoubleValue{
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DoubleValue: float64(v),
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},
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}, nil
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case bool:
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return &monitoringpb.TypedValue{
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Value: &monitoringpb.TypedValue_BoolValue{
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BoolValue: bool(v),
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},
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}, nil
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case string:
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return &monitoringpb.TypedValue{
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Value: &monitoringpb.TypedValue_StringValue{
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StringValue: string(v),
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},
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}, nil
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default:
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return nil, fmt.Errorf("value type \"%T\" not supported for stackdriver custom metrics", v)
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}
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}
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func getStackdriverLabels(tags []*telegraf.Tag) map[string]string {
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labels := make(map[string]string)
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for _, t := range tags {
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labels[t.Key] = t.Value
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}
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for k, v := range labels {
|
||||
if len(k) > QuotaStringLengthForLabelKey {
|
||||
log.Printf(
|
||||
"W! [output.stackdriver] removing tag [%s] key exceeds string length for label key [%d]",
|
||||
k,
|
||||
QuotaStringLengthForLabelKey,
|
||||
)
|
||||
delete(labels, k)
|
||||
continue
|
||||
}
|
||||
if len(v) > QuotaStringLengthForLabelValue {
|
||||
log.Printf(
|
||||
"W! [output.stackdriver] removing tag [%s] value exceeds string length for label value [%d]",
|
||||
k,
|
||||
QuotaStringLengthForLabelValue,
|
||||
)
|
||||
delete(labels, k)
|
||||
continue
|
||||
}
|
||||
}
|
||||
if len(labels) > QuotaLabelsPerMetricDescriptor {
|
||||
excess := len(labels) - QuotaLabelsPerMetricDescriptor
|
||||
log.Printf(
|
||||
"W! [output.stackdriver] tag count [%d] exceeds quota for stackdriver labels [%d] removing [%d] random tags",
|
||||
len(labels),
|
||||
QuotaLabelsPerMetricDescriptor,
|
||||
excess,
|
||||
)
|
||||
for k := range labels {
|
||||
if excess == 0 {
|
||||
break
|
||||
}
|
||||
excess--
|
||||
delete(labels, k)
|
||||
}
|
||||
}
|
||||
|
||||
return labels
|
||||
}
|
||||
|
||||
// Close will terminate the session to the backend, returning error if an issue arises.
|
||||
func (s *Stackdriver) Close() error {
|
||||
return s.client.Close()
|
||||
}
|
||||
|
||||
// SampleConfig returns the formatted sample configuration for the plugin.
|
||||
func (s *Stackdriver) SampleConfig() string {
|
||||
return sampleConfig
|
||||
}
|
||||
|
||||
// Description returns the human-readable function definition of the plugin.
|
||||
func (s *Stackdriver) Description() string {
|
||||
return "Configuration for Google Cloud Stackdriver to send metrics to"
|
||||
}
|
||||
|
||||
func newStackdriver() *Stackdriver {
|
||||
return &Stackdriver{}
|
||||
}
|
||||
|
||||
func init() {
|
||||
outputs.Add("stackdriver", func() telegraf.Output {
|
||||
return newStackdriver()
|
||||
})
|
||||
}
|
||||
|
|
@ -0,0 +1,119 @@
|
|||
package stackdriver
|
||||
|
||||
import (
|
||||
"context"
|
||||
"fmt"
|
||||
"log"
|
||||
"net"
|
||||
"os"
|
||||
"strings"
|
||||
"testing"
|
||||
|
||||
monitoring "cloud.google.com/go/monitoring/apiv3"
|
||||
"github.com/golang/protobuf/proto"
|
||||
emptypb "github.com/golang/protobuf/ptypes/empty"
|
||||
"github.com/influxdata/telegraf"
|
||||
"github.com/influxdata/telegraf/testutil"
|
||||
"github.com/stretchr/testify/require"
|
||||
"google.golang.org/api/option"
|
||||
monitoringpb "google.golang.org/genproto/googleapis/monitoring/v3"
|
||||
"google.golang.org/grpc"
|
||||
"google.golang.org/grpc/metadata"
|
||||
)
|
||||
|
||||
// clientOpt is the option tests should use to connect to the test server.
|
||||
// It is initialized by TestMain.
|
||||
var clientOpt option.ClientOption
|
||||
|
||||
var mockMetric mockMetricServer
|
||||
|
||||
type mockMetricServer struct {
|
||||
// Embed for forward compatibility.
|
||||
// Tests will keep working if more methods are added
|
||||
// in the future.
|
||||
monitoringpb.MetricServiceServer
|
||||
|
||||
reqs []proto.Message
|
||||
|
||||
// If set, all calls return this error.
|
||||
err error
|
||||
|
||||
// responses to return if err == nil
|
||||
resps []proto.Message
|
||||
}
|
||||
|
||||
func (s *mockMetricServer) CreateTimeSeries(ctx context.Context, req *monitoringpb.CreateTimeSeriesRequest) (*emptypb.Empty, error) {
|
||||
md, _ := metadata.FromIncomingContext(ctx)
|
||||
if xg := md["x-goog-api-client"]; len(xg) == 0 || !strings.Contains(xg[0], "gl-go/") {
|
||||
return nil, fmt.Errorf("x-goog-api-client = %v, expected gl-go key", xg)
|
||||
}
|
||||
s.reqs = append(s.reqs, req)
|
||||
if s.err != nil {
|
||||
return nil, s.err
|
||||
}
|
||||
return s.resps[0].(*emptypb.Empty), nil
|
||||
}
|
||||
|
||||
func TestMain(m *testing.M) {
|
||||
serv := grpc.NewServer()
|
||||
monitoringpb.RegisterMetricServiceServer(serv, &mockMetric)
|
||||
|
||||
lis, err := net.Listen("tcp", "localhost:0")
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
go serv.Serve(lis)
|
||||
|
||||
conn, err := grpc.Dial(lis.Addr().String(), grpc.WithInsecure())
|
||||
if err != nil {
|
||||
log.Fatal(err)
|
||||
}
|
||||
clientOpt = option.WithGRPCConn(conn)
|
||||
|
||||
os.Exit(m.Run())
|
||||
}
|
||||
|
||||
func TestWrite(t *testing.T) {
|
||||
expectedResponse := &emptypb.Empty{}
|
||||
mockMetric.err = nil
|
||||
mockMetric.reqs = nil
|
||||
mockMetric.resps = append(mockMetric.resps[:0], expectedResponse)
|
||||
|
||||
c, err := monitoring.NewMetricClient(context.Background(), clientOpt)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
s := &Stackdriver{
|
||||
Project: fmt.Sprintf("projects/%s", "[PROJECT]"),
|
||||
Namespace: "test",
|
||||
client: c,
|
||||
}
|
||||
|
||||
err = s.Connect()
|
||||
require.NoError(t, err)
|
||||
err = s.Write(testutil.MockMetrics())
|
||||
require.NoError(t, err)
|
||||
}
|
||||
|
||||
func TestGetStackdriverLabels(t *testing.T) {
|
||||
tags := []*telegraf.Tag{
|
||||
{Key: "project", Value: "bar"},
|
||||
{Key: "discuss", Value: "revolutionary"},
|
||||
{Key: "marble", Value: "discount"},
|
||||
{Key: "applied", Value: "falsify"},
|
||||
{Key: "test", Value: "foo"},
|
||||
{Key: "porter", Value: "discount"},
|
||||
{Key: "play", Value: "tiger"},
|
||||
{Key: "fireplace", Value: "display"},
|
||||
{Key: "host", Value: "this"},
|
||||
{Key: "name", Value: "bat"},
|
||||
{Key: "device", Value: "local"},
|
||||
{Key: "reserve", Value: "publication"},
|
||||
{Key: "xpfqacltlmpguimhtjlou2qlmf9uqqwk3teajwlwqkoxtsppbnjksaxvzc1aa973pho9m96gfnl5op8ku7sv93rexyx42qe3zty12ityv", Value: "keyquota"},
|
||||
{Key: "valuequota", Value: "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"},
|
||||
}
|
||||
|
||||
labels := getStackdriverLabels(tags)
|
||||
require.Equal(t, QuotaLabelsPerMetricDescriptor, len(labels))
|
||||
}
|
||||
Loading…
Reference in New Issue