From 20f665ede81b55ebff86498b597c65bb162bbb47 Mon Sep 17 00:00:00 2001 From: Kevin Wan Date: Sat, 4 Sep 2021 10:27:08 +0800 Subject: [PATCH] implement k8s service discovery (#988) * implement k8s service discovery * simplify code * use default namespace if not provided * disable codecov bot comment * ignore adhoc dir * simplify building target in NewClient * reformat code * Fix filepath (#990) * format code, and reorg imports (#991) * add more unit test Co-authored-by: anqiansong --- .codecov.yml | 3 +- .gitignore | 4 + core/proc/signals.go | 14 + core/proc/signals_test.go | 16 + go.mod | 13 +- go.sum | 286 ++++++++++++++++-- zrpc/client.go | 16 +- zrpc/config.go | 3 +- zrpc/internal/resolver/directbuilder.go | 6 +- zrpc/internal/resolver/discovbuilder.go | 11 +- zrpc/internal/resolver/discovbuilder_test.go | 12 + zrpc/internal/resolver/kube/eventhandler.go | 133 ++++++++ .../resolver/kube/eventhandler_test.go | 276 +++++++++++++++++ zrpc/internal/resolver/kube/targetparser.go | 45 +++ .../resolver/kube/targetparser_test.go | 83 +++++ zrpc/internal/resolver/kubebuilder.go | 80 +++++ zrpc/internal/resolver/kubebuilder_test.go | 12 + zrpc/internal/resolver/resolver.go | 4 + zrpc/internal/rpcpubserver.go | 3 +- 19 files changed, 979 insertions(+), 41 deletions(-) create mode 100644 core/proc/signals_test.go create mode 100644 zrpc/internal/resolver/discovbuilder_test.go create mode 100644 zrpc/internal/resolver/kube/eventhandler.go create mode 100644 zrpc/internal/resolver/kube/eventhandler_test.go create mode 100644 zrpc/internal/resolver/kube/targetparser.go create mode 100644 zrpc/internal/resolver/kube/targetparser_test.go create mode 100644 zrpc/internal/resolver/kubebuilder.go create mode 100644 zrpc/internal/resolver/kubebuilder_test.go diff --git a/.codecov.yml b/.codecov.yml index 4af81695..cae72736 100644 --- a/.codecov.yml +++ b/.codecov.yml @@ -1,4 +1,5 @@ +comment: false ignore: - "doc" - "example" - - "tools" + - "tools" \ No newline at end of file diff --git a/.gitignore b/.gitignore index d172d6d3..234a2cda 100644 --- a/.gitignore +++ b/.gitignore @@ -10,10 +10,14 @@ !*/ !api +# ignore .idea **/.DS_Store **/logs +# ignore adhoc test code +**/adhoc + # gitlab ci .cache diff --git a/core/proc/signals.go b/core/proc/signals.go index b2ba9774..25c75f46 100644 --- a/core/proc/signals.go +++ b/core/proc/signals.go @@ -1,3 +1,4 @@ +//go:build linux || darwin // +build linux darwin package proc @@ -12,6 +13,8 @@ import ( const timeFormat = "0102150405" +var done = make(chan struct{}) + func init() { go func() { var profiler Stopper @@ -33,6 +36,13 @@ func init() { profiler = nil } case syscall.SIGTERM: + select { + case <-done: + // already closed + default: + close(done) + } + gracefulStop(signals) default: logx.Error("Got unregistered signal:", v) @@ -40,3 +50,7 @@ func init() { } }() } + +func Done() <-chan struct{} { + return done +} diff --git a/core/proc/signals_test.go b/core/proc/signals_test.go new file mode 100644 index 00000000..e46cfdb2 --- /dev/null +++ b/core/proc/signals_test.go @@ -0,0 +1,16 @@ +package proc + +import ( + "testing" + + "github.com/stretchr/testify/assert" +) + +func TestDone(t *testing.T) { + select { + case <-Done(): + assert.Fail(t, "should run") + default: + } + assert.NotNil(t, Done()) +} diff --git a/go.mod b/go.mod index c84b4ea6..714b3bbc 100644 --- a/go.mod +++ b/go.mod @@ -18,18 +18,13 @@ require ( github.com/go-xorm/builder v0.3.4 github.com/golang/mock v1.4.3 github.com/golang/protobuf v1.5.2 - github.com/google/go-cmp v0.5.6 // indirect github.com/google/uuid v1.1.2 github.com/iancoleman/strcase v0.1.2 github.com/justinas/alice v1.2.0 - github.com/kr/pretty v0.2.0 // indirect - github.com/kr/text v0.2.0 // indirect github.com/lib/pq v1.3.0 github.com/logrusorgru/aurora v2.0.3+incompatible github.com/mattn/go-colorable v0.1.6 // indirect github.com/olekukonko/tablewriter v0.0.5 - github.com/onsi/ginkgo v1.7.0 // indirect - github.com/onsi/gomega v1.5.0 // indirect github.com/pierrec/lz4 v2.5.1+incompatible // indirect github.com/prometheus/client_golang v1.11.0 github.com/russross/blackfriday/v2 v2.1.0 // indirect @@ -41,18 +36,20 @@ require ( go.etcd.io/etcd/api/v3 v3.5.0 go.etcd.io/etcd/client/v3 v3.5.0 go.opentelemetry.io/otel v1.0.0-RC2 - go.opentelemetry.io/otel/exporters/jaeger v1.0.0-RC2 // indirect - go.opentelemetry.io/otel/metric v0.20.0 // indirect + go.opentelemetry.io/otel/exporters/jaeger v1.0.0-RC2 go.opentelemetry.io/otel/sdk v1.0.0-RC2 go.opentelemetry.io/otel/trace v1.0.0-RC2 go.uber.org/automaxprocs v1.3.0 golang.org/x/net v0.0.0-20210716203947-853a461950ff golang.org/x/sys v0.0.0-20210820121016-41cdb8703e55 // indirect - golang.org/x/time v0.0.0-20210220033141-f8bda1e9f3ba + golang.org/x/time v0.0.0-20210723032227-1f47c861a9ac google.golang.org/genproto v0.0.0-20210722135532-667f2b7c528f // indirect google.golang.org/grpc v1.39.0 google.golang.org/protobuf v1.27.1 gopkg.in/cheggaaa/pb.v1 v1.0.28 gopkg.in/h2non/gock.v1 v1.0.15 gopkg.in/yaml.v2 v2.4.0 + k8s.io/api v0.22.1 + k8s.io/apimachinery v0.22.1 + k8s.io/client-go v0.22.1 ) diff --git a/go.sum b/go.sum index 49195145..0e02d9e4 100644 --- a/go.sum +++ b/go.sum @@ -1,10 +1,42 @@ cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw= +cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSRU= +cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU= +cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY= +cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc= +cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0= +cloud.google.com/go v0.50.0/go.mod h1:r9sluTvynVuxRIOHXQEHMFffphuXHOMZMycpNR5e6To= +cloud.google.com/go v0.52.0/go.mod h1:pXajvRH/6o3+F9jDHZWQ5PbGhn+o8w9qiu/CffaVdO4= +cloud.google.com/go v0.53.0/go.mod h1:fp/UouUEsRkN6ryDKNW/Upv/JBKnv6WDthjR6+vze6M= +cloud.google.com/go v0.54.0/go.mod h1:1rq2OEkV3YMf6n/9ZvGWI3GWw0VoqH/1x2nd8Is/bPc= +cloud.google.com/go/bigquery v1.0.1/go.mod h1:i/xbL2UlR5RvWAURpBYZTtm/cXjCha9lbfbpx4poX+o= +cloud.google.com/go/bigquery v1.3.0/go.mod h1:PjpwJnslEMmckchkHFfq+HTD2DmtT67aNFKH1/VBDHE= +cloud.google.com/go/bigquery v1.4.0/go.mod h1:S8dzgnTigyfTmLBfrtrhyYhwRxG72rYxvftPBK2Dvzc= +cloud.google.com/go/datastore v1.0.0/go.mod h1:LXYbyblFSglQ5pkeyhO+Qmw7ukd3C+pD7TKLgZqpHYE= +cloud.google.com/go/datastore v1.1.0/go.mod h1:umbIZjpQpHh4hmRpGhH4tLFup+FVzqBi1b3c64qFpCk= +cloud.google.com/go/pubsub v1.0.1/go.mod h1:R0Gpsv3s54REJCy4fxDixWD93lHJMoZTyQ2kNxGRt3I= +cloud.google.com/go/pubsub v1.1.0/go.mod h1:EwwdRX2sKPjnvnqCa270oGRyludottCI76h+R3AArQw= +cloud.google.com/go/pubsub v1.2.0/go.mod h1:jhfEVHT8odbXTkndysNHCcx0awwzvfOlguIAii9o8iA= +cloud.google.com/go/storage v1.0.0/go.mod h1:IhtSnM/ZTZV8YYJWCY8RULGVqBDmpoyjwiyrjsg+URw= +cloud.google.com/go/storage v1.5.0/go.mod h1:tpKbwo567HUNpVclU5sGELwQWBDZ8gh0ZeosJ0Rtdos= +cloud.google.com/go/storage v1.6.0/go.mod h1:N7U0C8pVQ/+NIKOBQyamJIeKQKkZ+mxpohlUTyfDhBk= +dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU= +github.com/Azure/go-autorest v14.2.0+incompatible/go.mod h1:r+4oMnoxhatjLLJ6zxSWATqVooLgysK6ZNox3g/xq24= +github.com/Azure/go-autorest/autorest v0.11.18/go.mod h1:dSiJPy22c3u0OtOKDNttNgqpNFY/GeWa7GH/Pz56QRA= +github.com/Azure/go-autorest/autorest/adal v0.9.13/go.mod h1:W/MM4U6nLxnIskrw4UwWzlHfGjwUS50aOsc/I3yuU8M= +github.com/Azure/go-autorest/autorest/date v0.3.0/go.mod h1:BI0uouVdmngYNUzGWeSYnokU+TrmwEsOqdt8Y6sso74= +github.com/Azure/go-autorest/autorest/mocks v0.4.1/go.mod h1:LTp+uSrOhSkaKrUy935gNZuuIPPVsHlr9DSOxSayd+k= +github.com/Azure/go-autorest/logger v0.2.1/go.mod h1:T9E3cAhj2VqvPOtCYAvby9aBXkZmbF5NWuPV8+WeEW8= +github.com/Azure/go-autorest/tracing v0.6.0/go.mod h1:+vhtPC754Xsa23ID7GlGsrdKBpUA79WCAKPPZVC2DeU= github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU= +github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo= github.com/ClickHouse/clickhouse-go v1.4.3 h1:iAFMa2UrQdR5bHJ2/yaSLffZkxpcOYQMCUuKeNXGdqc= github.com/ClickHouse/clickhouse-go v1.4.3/go.mod h1:EaI/sW7Azgz9UATzd5ZdZHRUhHgv5+JMS9NSr2smCJI= github.com/DATA-DOG/go-sqlmock v1.4.1 h1:ThlnYciV1iM/V0OSF/dtkqWb6xo5qITT1TJBG1MRDJM= github.com/DATA-DOG/go-sqlmock v1.4.1/go.mod h1:f/Ixk793poVmq4qj/V1dPUg2JEAKC73Q5eFN3EC/SaM= +github.com/NYTimes/gziphandler v0.0.0-20170623195520-56545f4a5d46/go.mod h1:3wb06e3pkSAbeQ52E9H9iFoQsEEwGN64994WTCIhntQ= +github.com/PuerkitoBio/purell v1.1.1/go.mod h1:c11w/QuzBsJSee3cPx9rAFu61PvFxuPbtSwDGJws/X0= +github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578/go.mod h1:uGdkoq3SwY9Y+13GIhn11/XLaGBb4BfwItxLd5jeuXE= github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= github.com/alecthomas/template v0.0.0-20190718012654-fb15b899a751/go.mod h1:LOuyumcjzFXgccqObfd/Ljyb9UuFJ6TxHnclSeseNhc= github.com/alecthomas/units v0.0.0-20151022065526-2efee857e7cf/go.mod h1:ybxpYRFXyAe+OPACYpWeL0wqObRcbAqCMya13uyzqw0= @@ -17,6 +49,7 @@ github.com/alicebob/miniredis/v2 v2.14.1/go.mod h1:uS970Sw5Gs9/iK3yBg0l9Uj9s25wX github.com/antihax/optional v1.0.0/go.mod h1:uupD/76wgC+ih3iEmQUL+0Ugr19nfwCT1kdvxnR2qWY= github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20210521184019-c5ad59b459ec h1:EEyRvzmpEUZ+I8WmD5cw/vY8EqhambkOqy5iFr0908A= github.com/antlr/antlr4/runtime/Go/antlr v0.0.0-20210521184019-c5ad59b459ec/go.mod h1:F7bn7fEU90QkQ3tnmaTx3LTKLEDqnwWODIYppRQ5hnY= +github.com/asaskevich/govalidator v0.0.0-20190424111038-f61b66f89f4a/go.mod h1:lB+ZfQJz7igIIfQNfa7Ml4HSf2uFQQRzpGGRXenZAgY= github.com/beorn7/perks v0.0.0-20180321164747-3a771d992973/go.mod h1:Dwedo/Wpr24TaqPxmxbtue+5NUziq4I4S80YR8gNf3Q= github.com/beorn7/perks v1.0.0/go.mod h1:KWe93zE9D1o94FZ5RNwFwVgaQK1VOXiVxmqh+CedLV8= github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM= @@ -48,7 +81,10 @@ github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/dgrijalva/jwt-go v3.2.0+incompatible h1:7qlOGliEKZXTDg6OTjfoBKDXWrumCAMpl/TFQ4/5kLM= github.com/dgrijalva/jwt-go v3.2.0+incompatible/go.mod h1:E3ru+11k8xSBh+hMPgOLZmtrrCbhqsmaPHjLKYnJCaQ= +github.com/docopt/docopt-go v0.0.0-20180111231733-ee0de3bc6815/go.mod h1:WwZ+bS3ebgob9U8Nd0kOddGdZWjyMGR8Wziv+TBNwSE= github.com/dustin/go-humanize v1.0.0/go.mod h1:HtrtbFcZ19U5GC7JDqmcUSB87Iq5E25KnS6fMYU6eOk= +github.com/elazarl/goproxy v0.0.0-20180725130230-947c36da3153/go.mod h1:/Zj4wYkgs4iZTTu3o/KG3Itv/qCCa8VVMlb3i9OVuzc= +github.com/emicklei/go-restful v0.0.0-20170410110728-ff4f55a20633/go.mod h1:otzb+WCGbkyDHkqmQmT5YD2WR4BBwUdeQoFo8l/7tVs= github.com/emicklei/proto v1.9.0 h1:l0QiNT6Qs7Yj0Mb4X6dnWBQer4ebei2BFcgQLbGqUDc= github.com/emicklei/proto v1.9.0/go.mod h1:rn1FgRS/FANiZdD2djyH7TMA9jdRDcYQ9IEN9yvjX0A= github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4= @@ -58,23 +94,36 @@ github.com/envoyproxy/go-control-plane v0.9.9-0.20201210154907-fd9021fe5dad/go.m github.com/envoyproxy/go-control-plane v0.9.9-0.20210217033140-668b12f5399d/go.mod h1:cXg6YxExXjJnVBQHBLXeUAgxn2UodCpnH306RInaBQk= github.com/envoyproxy/go-control-plane v0.9.9-0.20210512163311-63b5d3c536b0/go.mod h1:hliV/p42l8fGbc6Y9bQ70uLwIvmJyVE5k4iMKlh8wCQ= github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c= +github.com/evanphx/json-patch v4.11.0+incompatible/go.mod h1:50XU6AFN0ol/bzJsmQLiYLvXMP4fmwYFNcr97nuDLSk= github.com/fatih/color v1.9.0 h1:8xPHl4/q1VyqGIPif1F+1V3Y3lSmrq01EabUW3CoW5s= github.com/fatih/color v1.9.0/go.mod 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v3.5.0 h1:62Eh0XOro+rDwkrypAGDfgmNh5Joq+z+W9HZdlXMzek= go.etcd.io/etcd/client/v3 v3.5.0/go.mod h1:AIKXXVX/DQXtfTEqBryiLTUXwON+GuvO6Z7lLS/oTh0= -go.opentelemetry.io/otel v0.20.0 h1:eaP0Fqu7SXHwvjiqDq83zImeehOHX8doTvU9AwXON8g= -go.opentelemetry.io/otel v0.20.0/go.mod h1:Y3ugLH2oa81t5QO+Lty+zXf8zC9L26ax4Nzoxm/dooo= +go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU= +go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8= +go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw= +go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw= go.opentelemetry.io/otel v1.0.0-RC2 h1:SHhxSjB+omnGZPgGlKe+QMp3MyazcOHdQ8qwo89oKbg= go.opentelemetry.io/otel v1.0.0-RC2/go.mod h1:w1thVQ7qbAy8MHb0IFj8a5Q2QU0l2ksf8u/CN8m3NOM= go.opentelemetry.io/otel/exporters/jaeger v1.0.0-RC2 h1:RF0nWsIDpDBe+s06lkLxUw9CWQUAhO6hBSxxB7dz45s= go.opentelemetry.io/otel/exporters/jaeger v1.0.0-RC2/go.mod 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go.opentelemetry.io/proto/otlp v0.7.0/go.mod h1:PqfVotwruBrMGOCsRd/89rSnXhoiJIqeYNgFYFoEGnI= @@ -275,16 +376,40 @@ go.uber.org/zap v1.17.0/go.mod h1:MXVU+bhUf/A7Xi2HNOnopQOrmycQ5Ih87HtOu4q5SSo= golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4= golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= +golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI= golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= +golang.org/x/crypto v0.0.0-20201002170205-7f63de1d35b0/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto= +golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I= golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= +golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA= +golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8= +golang.org/x/exp v0.0.0-20190829153037-c13cbed26979/go.mod h1:86+5VVa7VpoJ4kLfm080zCjGlMRFzhUhsZKEZO7MGek= +golang.org/x/exp v0.0.0-20191030013958-a1ab85dbe136/go.mod h1:JXzH8nQsPlswgeRAPE3MuO9GYsAcnJvJ4vnMwN/5qkY= +golang.org/x/exp v0.0.0-20191129062945-2f5052295587/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4= +golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4= +golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4= +golang.org/x/exp 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v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= +golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc= golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs= +golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY= +golang.org/x/lint v0.0.0-20200302205851-738671d3881b/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY= golang.org/x/lint v0.0.0-20210508222113-6edffad5e616/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY= +golang.org/x/mobile v0.0.0-20190312151609-d3739f865fa6/go.mod h1:z+o9i4GpDbdi3rU15maQ/Ox0txvL9dWGYEHz965HBQE= +golang.org/x/mobile v0.0.0-20190719004257-d2bd2a29d028/go.mod h1:E/iHnbuqvinMTCcRqshq8CkpyQDoeVncDDYHnLhea+o= golang.org/x/mod v0.0.0-20190513183733-4bf6d317e70e/go.mod h1:mXi4GBBbnImb6dmsKGUJ2LatrhH/nqhxcFungHvyanc= +golang.org/x/mod v0.1.0/go.mod h1:0QHyrYULN0/3qlju5TqG8bIK38QM8yzMo5ekMj3DlcY= golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg= +golang.org/x/mod v0.1.1-0.20191107180719-034126e5016b/go.mod h1:QqPTAvyqsEbceGzBzNggFXnrqF1CaUcvgkdR5Ot7KZg= golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA= @@ -296,21 +421,38 @@ golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73r golang.org/x/net v0.0.0-20190213061140-3a22650c66bd/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg= +golang.org/x/net v0.0.0-20190501004415-9ce7a6920f09/go.mod 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h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200615200032-f1bc736245b1/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200625212154-ddb9806d33ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= @@ -341,30 +501,56 @@ golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7w golang.org/x/sys v0.0.0-20210423185535-09eb48e85fd7/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= -golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I= -golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod 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+google.golang.org/protobuf v1.24.0/go.mod h1:r/3tXBNzIEhYS9I1OUVjXDlt8tc493IdKGjtUeSXeh4= google.golang.org/protobuf v1.25.0/go.mod h1:9JNX74DMeImyA3h4bdi1ymwjUzf21/xIlbajtzgsN7c= google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw= google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc= @@ -408,15 +630,17 @@ google.golang.org/protobuf v1.27.1/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQ gopkg.in/alecthomas/kingpin.v2 v2.2.6/go.mod h1:FMv+mEhP44yOT+4EoQTLFTRgOQ1FBLkstjWtayDeSgw= gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= -gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 h1:YR8cESwS4TdDjEe65xsg0ogRM/Nc3DYOhEAlW+xobZo= gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= 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h1:uRGJdciOHaEIrze2W8Q3AKkepLTh2hOroT7a+7czfdQ= gopkg.in/tomb.v1 v1.0.0-20141024135613-dd632973f1e7/go.mod h1:dt/ZhP58zS4L8KSrWDmTeBkI65Dw0HsyUHuEVlX15mw= gopkg.in/yaml.v2 v2.2.1/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= @@ -429,11 +653,33 @@ gopkg.in/yaml.v2 v2.3.0/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI= gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY= gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ= gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.0-20200615113413-eeeca48fe776/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo= gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +honnef.co/go/tools v0.0.0-20190106161140-3f1c8253044a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= +honnef.co/go/tools v0.0.0-20190418001031-e561f6794a2a/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4= honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg= +honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k= +k8s.io/api v0.22.1 h1:ISu3tD/jRhYfSW8jI/Q1e+lRxkR7w9UwQEZ7FgslrwY= +k8s.io/api v0.22.1/go.mod h1:bh13rkTp3F1XEaLGykbyRD2QaTTzPm0e/BMd8ptFONY= +k8s.io/apimachinery v0.22.1 h1:DTARnyzmdHMz7bFWFDDm22AM4pLWTQECMpRTFu2d2OM= +k8s.io/apimachinery v0.22.1/go.mod h1:O3oNtNadZdeOMxHFVxOreoznohCpy0z6mocxbZr7oJ0= +k8s.io/client-go v0.22.1 h1:jW0ZSHi8wW260FvcXHkIa0NLxFBQszTlhiAVsU5mopw= +k8s.io/client-go v0.22.1/go.mod h1:BquC5A4UOo4qVDUtoc04/+Nxp1MeHcVc1HJm1KmG8kk= +k8s.io/gengo v0.0.0-20200413195148-3a45101e95ac/go.mod h1:ezvh/TsK7cY6rbqRK0oQQ8IAqLxYwwyPxAX1Pzy0ii0= +k8s.io/klog/v2 v2.0.0/go.mod h1:PBfzABfn139FHAV07az/IF9Wp1bkk3vpT2XSJ76fSDE= +k8s.io/klog/v2 v2.9.0 h1:D7HV+n1V57XeZ0m6tdRkfknthUaM06VFbWldOFh8kzM= +k8s.io/klog/v2 v2.9.0/go.mod h1:hy9LJ/NvuK+iVyP4Ehqva4HxZG/oXyIS3n3Jmire4Ec= +k8s.io/kube-openapi v0.0.0-20210421082810-95288971da7e/go.mod h1:vHXdDvt9+2spS2Rx9ql3I8tycm3H9FDfdUoIuKCefvw= +k8s.io/utils v0.0.0-20210707171843-4b05e18ac7d9 h1:imL9YgXQ9p7xmPzHFm/vVd/cF78jad+n4wK1ABwYtMM= +k8s.io/utils v0.0.0-20210707171843-4b05e18ac7d9/go.mod h1:jPW/WVKK9YHAvNhRxK0md/EJ228hCsBRufyofKtW8HA= +rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8= rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0= rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA= +sigs.k8s.io/structured-merge-diff/v4 v4.0.2/go.mod h1:bJZC9H9iH24zzfZ/41RGcq60oK1F7G282QMXDPYydCw= +sigs.k8s.io/structured-merge-diff/v4 v4.1.2 h1:Hr/htKFmJEbtMgS/UD0N+gtgctAqz81t3nu+sPzynno= +sigs.k8s.io/structured-merge-diff/v4 v4.1.2/go.mod h1:j/nl6xW8vLS49O8YvXW1ocPhZawJtm+Yrr7PPRQ0Vg4= +sigs.k8s.io/yaml v1.2.0 h1:kr/MCeFWJWTwyaHoR9c8EjH9OumOmoF9YGiZd7lFm/Q= sigs.k8s.io/yaml v1.2.0/go.mod h1:yfXDCHCao9+ENCvLSE62v9VSji2MKu5jeNfTrofGhJc= diff --git a/zrpc/client.go b/zrpc/client.go index f3fb199a..a3820f4d 100644 --- a/zrpc/client.go +++ b/zrpc/client.go @@ -55,13 +55,21 @@ func NewClient(c RpcClientConf, options ...ClientOption) (Client, error) { } opts = append(opts, options...) - var client Client + var target string var err error if len(c.Endpoints) > 0 { - client, err = internal.NewClient(internal.BuildDirectTarget(c.Endpoints), opts...) - } else if err = c.Etcd.Validate(); err == nil { - client, err = internal.NewClient(internal.BuildDiscovTarget(c.Etcd.Hosts, c.Etcd.Key), opts...) + target = internal.BuildDirectTarget(c.Endpoints) + } else if len(c.Target) > 0 { + target = c.Target + } else { + if err = c.Etcd.Validate(); err != nil { + return nil, err + } + + target = internal.BuildDiscovTarget(c.Etcd.Hosts, c.Etcd.Key) } + + client, err := internal.NewClient(target, opts...) if err != nil { return nil, err } diff --git a/zrpc/config.go b/zrpc/config.go index f2114a4e..9ec3fd8f 100644 --- a/zrpc/config.go +++ b/zrpc/config.go @@ -23,7 +23,8 @@ type ( // A RpcClientConf is a rpc client config. RpcClientConf struct { Etcd discov.EtcdConf `json:",optional"` - Endpoints []string `json:",optional=!Etcd"` + Endpoints []string `json:",optional"` + Target string `json:",optional"` App string `json:",optional"` Token string `json:",optional"` Timeout int64 `json:",default=2000"` diff --git a/zrpc/internal/resolver/directbuilder.go b/zrpc/internal/resolver/directbuilder.go index 756f9cc2..e0f4efe3 100644 --- a/zrpc/internal/resolver/directbuilder.go +++ b/zrpc/internal/resolver/directbuilder.go @@ -20,9 +20,11 @@ func (d *directBuilder) Build(target resolver.Target, cc resolver.ClientConn, op Addr: val, }) } - cc.UpdateState(resolver.State{ + if err := cc.UpdateState(resolver.State{ Addresses: addrs, - }) + }); err != nil { + return nil, err + } return &nopResolver{cc: cc}, nil } diff --git a/zrpc/internal/resolver/discovbuilder.go b/zrpc/internal/resolver/discovbuilder.go index 5f53f35e..8b153659 100644 --- a/zrpc/internal/resolver/discovbuilder.go +++ b/zrpc/internal/resolver/discovbuilder.go @@ -4,12 +4,13 @@ import ( "strings" "github.com/tal-tech/go-zero/core/discov" + "github.com/tal-tech/go-zero/core/logx" "google.golang.org/grpc/resolver" ) type discovBuilder struct{} -func (d *discovBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) ( +func (b *discovBuilder) Build(target resolver.Target, cc resolver.ClientConn, opts resolver.BuildOptions) ( resolver.Resolver, error) { hosts := strings.FieldsFunc(target.Authority, func(r rune) bool { return r == EndpointSepChar @@ -26,9 +27,11 @@ func (d *discovBuilder) Build(target resolver.Target, cc resolver.ClientConn, op Addr: val, }) } - cc.UpdateState(resolver.State{ + if err := cc.UpdateState(resolver.State{ Addresses: addrs, - }) + }); err != nil { + logx.Error(err) + } } sub.AddListener(update) update() @@ -36,6 +39,6 @@ func (d *discovBuilder) Build(target resolver.Target, cc resolver.ClientConn, op return &nopResolver{cc: cc}, nil } -func (d *discovBuilder) Scheme() string { +func (b *discovBuilder) Scheme() string { return DiscovScheme } diff --git a/zrpc/internal/resolver/discovbuilder_test.go b/zrpc/internal/resolver/discovbuilder_test.go new file mode 100644 index 00000000..042d67ec --- /dev/null +++ b/zrpc/internal/resolver/discovbuilder_test.go @@ -0,0 +1,12 @@ +package resolver + +import ( + "testing" + + "github.com/stretchr/testify/assert" +) + +func TestDiscovBuilder_Scheme(t *testing.T) { + var b discovBuilder + assert.Equal(t, DiscovScheme, b.Scheme()) +} diff --git a/zrpc/internal/resolver/kube/eventhandler.go b/zrpc/internal/resolver/kube/eventhandler.go new file mode 100644 index 00000000..977eadca --- /dev/null +++ b/zrpc/internal/resolver/kube/eventhandler.go @@ -0,0 +1,133 @@ +package kube + +import ( + "sync" + + "github.com/tal-tech/go-zero/core/lang" + "github.com/tal-tech/go-zero/core/logx" + v1 "k8s.io/api/core/v1" +) + +type EventHandler struct { + update func([]string) + endpoints map[string]lang.PlaceholderType + lock sync.Mutex +} + +func NewEventHandler(update func([]string)) *EventHandler { + return &EventHandler{ + update: update, + endpoints: make(map[string]lang.PlaceholderType), + } +} + +func (h *EventHandler) OnAdd(obj interface{}) { + endpoints, ok := obj.(*v1.Endpoints) + if !ok { + logx.Errorf("%v is not an object with type *v1.Endpoints", obj) + return + } + + h.lock.Lock() + defer h.lock.Unlock() + + var changed bool + for _, sub := range endpoints.Subsets { + for _, point := range sub.Addresses { + if _, ok := h.endpoints[point.IP]; !ok { + h.endpoints[point.IP] = lang.Placeholder + changed = true + } + } + } + + if changed { + h.notify() + } +} + +func (h *EventHandler) OnDelete(obj interface{}) { + endpoints, ok := obj.(*v1.Endpoints) + if !ok { + logx.Errorf("%v is not an object with type *v1.Endpoints", obj) + return + } + + h.lock.Lock() + defer h.lock.Unlock() + + var changed bool + for _, sub := range endpoints.Subsets { + for _, point := range sub.Addresses { + if _, ok := h.endpoints[point.IP]; ok { + delete(h.endpoints, point.IP) + changed = true + } + } + } + + if changed { + h.notify() + } +} + +func (h *EventHandler) OnUpdate(oldObj, newObj interface{}) { + oldEndpoints, ok := oldObj.(*v1.Endpoints) + if !ok { + logx.Errorf("%v is not an object with type *v1.Endpoints", oldObj) + return + } + + newEndpoints, ok := newObj.(*v1.Endpoints) + if !ok { + logx.Errorf("%v is not an object with type *v1.Endpoints", newObj) + return + } + + if oldEndpoints.ResourceVersion == newEndpoints.ResourceVersion { + return + } + + h.Update(newEndpoints) +} + +func (h *EventHandler) Update(endpoints *v1.Endpoints) { + h.lock.Lock() + defer h.lock.Unlock() + + old := h.endpoints + h.endpoints = make(map[string]lang.PlaceholderType) + for _, sub := range endpoints.Subsets { + for _, point := range sub.Addresses { + h.endpoints[point.IP] = lang.Placeholder + } + } + + if diff(old, h.endpoints) { + h.notify() + } +} + +func (h *EventHandler) notify() { + var targets []string + + for k := range h.endpoints { + targets = append(targets, k) + } + + h.update(targets) +} + +func diff(o, n map[string]lang.PlaceholderType) bool { + if len(o) != len(n) { + return true + } + + for k := range o { + if _, ok := n[k]; !ok { + return true + } + } + + return false +} diff --git a/zrpc/internal/resolver/kube/eventhandler_test.go b/zrpc/internal/resolver/kube/eventhandler_test.go new file mode 100644 index 00000000..7325f008 --- /dev/null +++ b/zrpc/internal/resolver/kube/eventhandler_test.go @@ -0,0 +1,276 @@ +package kube + +import ( + "testing" + + "github.com/stretchr/testify/assert" + v1 "k8s.io/api/core/v1" + metav1 "k8s.io/apimachinery/pkg/apis/meta/v1" +) + +func TestAdd(t *testing.T) { + var endpoints []string + h := NewEventHandler(func(change []string) { + endpoints = change + }) + h.OnAdd("bad") + h.OnAdd(&v1.Endpoints{Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + { + IP: "0.0.0.3", + }, + }, + }, + }}) + assert.ElementsMatch(t, []string{"0.0.0.1", "0.0.0.2", "0.0.0.3"}, endpoints) +} + +func TestDelete(t *testing.T) { + var endpoints []string + h := NewEventHandler(func(change []string) { + endpoints = change + }) + h.OnAdd(&v1.Endpoints{Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + { + IP: "0.0.0.3", + }, + }, + }, + }}) + h.OnDelete("bad") + h.OnDelete(&v1.Endpoints{Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + }, + }, + }}) + assert.ElementsMatch(t, []string{"0.0.0.3"}, endpoints) +} + +func TestUpdate(t *testing.T) { + var endpoints []string + h := NewEventHandler(func(change []string) { + endpoints = change + }) + h.OnUpdate(&v1.Endpoints{ + Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + }, + }, + }, + ObjectMeta: metav1.ObjectMeta{ + ResourceVersion: "1", + }, + }, &v1.Endpoints{ + Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + { + IP: "0.0.0.3", + }, + }, + }, + }, + ObjectMeta: metav1.ObjectMeta{ + ResourceVersion: "2", + }, + }) + assert.ElementsMatch(t, []string{"0.0.0.1", "0.0.0.2", "0.0.0.3"}, endpoints) +} + +func TestUpdateNoChange(t *testing.T) { + h := NewEventHandler(func(change []string) { + assert.Fail(t, "should not called") + }) + h.OnUpdate(&v1.Endpoints{ + Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + }, + }, + }, + ObjectMeta: metav1.ObjectMeta{ + ResourceVersion: "1", + }, + }, &v1.Endpoints{ + Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + }, + }, + }, + ObjectMeta: metav1.ObjectMeta{ + ResourceVersion: "1", + }, + }) +} + +func TestUpdateChangeWithDifferentVersion(t *testing.T) { + var endpoints []string + h := NewEventHandler(func(change []string) { + endpoints = change + }) + h.OnAdd(&v1.Endpoints{Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.3", + }, + }, + }, + }}) + h.OnUpdate(&v1.Endpoints{ + Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.3", + }, + }, + }, + }, + ObjectMeta: metav1.ObjectMeta{ + ResourceVersion: "1", + }, + }, &v1.Endpoints{ + Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + }, + }, + }, + ObjectMeta: metav1.ObjectMeta{ + ResourceVersion: "2", + }, + }) + assert.ElementsMatch(t, []string{"0.0.0.1", "0.0.0.2"}, endpoints) +} + +func TestUpdateNoChangeWithDifferentVersion(t *testing.T) { + var endpoints []string + h := NewEventHandler(func(change []string) { + endpoints = change + }) + h.OnAdd(&v1.Endpoints{Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + }, + }, + }}) + h.OnUpdate("bad", &v1.Endpoints{Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + }, + }, + }}) + h.OnUpdate(&v1.Endpoints{Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + }, + }, + }}, "bad") + h.OnUpdate(&v1.Endpoints{ + Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + }, + }, + }, + ObjectMeta: metav1.ObjectMeta{ + ResourceVersion: "1", + }, + }, &v1.Endpoints{ + Subsets: []v1.EndpointSubset{ + { + Addresses: []v1.EndpointAddress{ + { + IP: "0.0.0.1", + }, + { + IP: "0.0.0.2", + }, + }, + }, + }, + ObjectMeta: metav1.ObjectMeta{ + ResourceVersion: "2", + }, + }) + assert.ElementsMatch(t, []string{"0.0.0.1", "0.0.0.2"}, endpoints) +} diff --git a/zrpc/internal/resolver/kube/targetparser.go b/zrpc/internal/resolver/kube/targetparser.go new file mode 100644 index 00000000..569fdcd5 --- /dev/null +++ b/zrpc/internal/resolver/kube/targetparser.go @@ -0,0 +1,45 @@ +package kube + +import ( + "fmt" + "strconv" + "strings" + + "google.golang.org/grpc/resolver" +) + +const ( + colon = ":" + defaultNamespace = "default" +) + +var emptyService Service + +type Service struct { + Namespace string + Name string + Port int +} + +func ParseTarget(target resolver.Target) (Service, error) { + var service Service + service.Namespace = target.Authority + if len(service.Namespace) == 0 { + service.Namespace = defaultNamespace + } + + segs := strings.SplitN(target.Endpoint, colon, 2) + if len(segs) < 2 { + return emptyService, fmt.Errorf("bad endpoint: %s", target.Endpoint) + } + + service.Name = segs[0] + port, err := strconv.Atoi(segs[1]) + if err != nil { + return emptyService, err + } + + service.Port = port + + return service, nil +} diff --git a/zrpc/internal/resolver/kube/targetparser_test.go b/zrpc/internal/resolver/kube/targetparser_test.go new file mode 100644 index 00000000..7f53e426 --- /dev/null +++ b/zrpc/internal/resolver/kube/targetparser_test.go @@ -0,0 +1,83 @@ +package kube + +import ( + "testing" + + "github.com/stretchr/testify/assert" + "google.golang.org/grpc/resolver" +) + +func TestParseTarget(t *testing.T) { + tests := []struct { + name string + input resolver.Target + expect Service + hasErr bool + }{ + { + name: "normal case", + input: resolver.Target{ + Scheme: "k8s", + Authority: "ns1", + Endpoint: "my-svc:8080", + }, + expect: Service{ + Namespace: "ns1", + Name: "my-svc", + Port: 8080, + }, + }, + { + name: "normal case", + input: resolver.Target{ + Scheme: "k8s", + Authority: "", + Endpoint: "my-svc:8080", + }, + expect: Service{ + Namespace: defaultNamespace, + Name: "my-svc", + Port: 8080, + }, + }, + { + name: "no port", + input: resolver.Target{ + Scheme: "k8s", + Authority: "ns1", + Endpoint: "my-svc:", + }, + hasErr: true, + }, + { + name: "no port, no colon", + input: resolver.Target{ + Scheme: "k8s", + Authority: "ns1", + Endpoint: "my-svc", + }, + hasErr: true, + }, + { + name: "bad port", + input: resolver.Target{ + Scheme: "k8s", + Authority: "ns1", + Endpoint: "my-svc:800a", + }, + hasErr: true, + }, + } + + for _, test := range tests { + t.Run(test.name, func(t *testing.T) { + svc, err := ParseTarget(test.input) + if test.hasErr { + assert.NotNil(t, err) + } else { + assert.Nil(t, err) + assert.Equal(t, test.expect, svc) + } + }) + } +} diff --git a/zrpc/internal/resolver/kubebuilder.go b/zrpc/internal/resolver/kubebuilder.go new file mode 100644 index 00000000..73c0f97f --- /dev/null +++ b/zrpc/internal/resolver/kubebuilder.go @@ -0,0 +1,80 @@ +package resolver + +import ( + "context" + "fmt" + "time" + + "github.com/tal-tech/go-zero/core/logx" + "github.com/tal-tech/go-zero/core/proc" + "github.com/tal-tech/go-zero/core/threading" + "github.com/tal-tech/go-zero/zrpc/internal/resolver/kube" + "google.golang.org/grpc/resolver" + v1 "k8s.io/apimachinery/pkg/apis/meta/v1" + "k8s.io/client-go/informers" + "k8s.io/client-go/kubernetes" + "k8s.io/client-go/rest" +) + +const ( + resyncInterval = 5 * time.Minute + nameSelector = "metadata.name=" +) + +type kubeBuilder struct{} + +func (b *kubeBuilder) Build(target resolver.Target, cc resolver.ClientConn, + opts resolver.BuildOptions) (resolver.Resolver, error) { + svc, err := kube.ParseTarget(target) + if err != nil { + return nil, err + } + + config, err := rest.InClusterConfig() + if err != nil { + return nil, err + } + + cs, err := kubernetes.NewForConfig(config) + if err != nil { + return nil, err + } + + handler := kube.NewEventHandler(func(endpoints []string) { + var addrs []resolver.Address + for _, val := range subset(endpoints, subsetSize) { + addrs = append(addrs, resolver.Address{ + Addr: fmt.Sprintf("%s:%d", val, svc.Port), + }) + } + + if err := cc.UpdateState(resolver.State{ + Addresses: addrs, + }); err != nil { + logx.Error(err) + } + }) + inf := informers.NewSharedInformerFactoryWithOptions(cs, resyncInterval, + informers.WithNamespace(svc.Namespace), + informers.WithTweakListOptions(func(options *v1.ListOptions) { + options.FieldSelector = nameSelector + svc.Name + })) + in := inf.Core().V1().Endpoints() + in.Informer().AddEventHandler(handler) + threading.GoSafe(func() { + inf.Start(proc.Done()) + }) + + endpoints, err := cs.CoreV1().Endpoints(svc.Namespace).Get(context.Background(), svc.Name, v1.GetOptions{}) + if err != nil { + return nil, err + } + + handler.Update(endpoints) + + return &nopResolver{cc: cc}, nil +} + +func (b *kubeBuilder) Scheme() string { + return KubernetesScheme +} diff --git a/zrpc/internal/resolver/kubebuilder_test.go b/zrpc/internal/resolver/kubebuilder_test.go new file mode 100644 index 00000000..3b7ce5a2 --- /dev/null +++ b/zrpc/internal/resolver/kubebuilder_test.go @@ -0,0 +1,12 @@ +package resolver + +import ( + "testing" + + "github.com/stretchr/testify/assert" +) + +func TestKubeBuilder_Scheme(t *testing.T) { + var b kubeBuilder + assert.Equal(t, KubernetesScheme, b.Scheme()) +} diff --git a/zrpc/internal/resolver/resolver.go b/zrpc/internal/resolver/resolver.go index 7ed90ee6..fd7611be 100644 --- a/zrpc/internal/resolver/resolver.go +++ b/zrpc/internal/resolver/resolver.go @@ -11,6 +11,8 @@ const ( DirectScheme = "direct" // DiscovScheme stands for discov scheme. DiscovScheme = "discov" + // KubernetesScheme stands for k8s scheme. + KubernetesScheme = "k8s" // EndpointSepChar is the separator cha in endpoints. EndpointSepChar = ',' @@ -23,12 +25,14 @@ var ( dirBuilder directBuilder disBuilder discovBuilder + k8sBuilder kubeBuilder ) // RegisterResolver registers the direct and discov schemes to the resolver. func RegisterResolver() { resolver.Register(&dirBuilder) resolver.Register(&disBuilder) + resolver.Register(&k8sBuilder) } type nopResolver struct { diff --git a/zrpc/internal/rpcpubserver.go b/zrpc/internal/rpcpubserver.go index 10ec8014..46194c2f 100644 --- a/zrpc/internal/rpcpubserver.go +++ b/zrpc/internal/rpcpubserver.go @@ -14,7 +14,8 @@ const ( ) // NewRpcPubServer returns a Server. -func NewRpcPubServer(etcdEndpoints []string, etcdKey, listenOn string, opts ...ServerOption) (Server, error) { +func NewRpcPubServer(etcdEndpoints []string, etcdKey, listenOn string, + opts ...ServerOption) (Server, error) { registerEtcd := func() error { pubListenOn := figureOutListenOn(listenOn) pubClient := discov.NewPublisher(etcdEndpoints, etcdKey, pubListenOn)