From 57cfb90777f09c5170de8af01511a7c282f41210 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ask=20Bj=C3=B8rn=20Hansen?= Date: Sun, 2 Jul 2023 23:06:13 -0700 Subject: [PATCH] Kafka helper (from chgw) --- go.mod | 16 +++- go.sum | 69 +++++++++++++++++ kafka/kafka.go | 196 +++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 280 insertions(+), 1 deletion(-) create mode 100644 kafka/kafka.go diff --git a/go.mod b/go.mod index b7d5075..c0efba9 100644 --- a/go.mod +++ b/go.mod @@ -2,4 +2,18 @@ module go.ntppool.org/common go 1.20 -require golang.org/x/exp v0.0.0-20230626212559-97b1e661b5df +require ( + github.com/abh/certman v0.4.0 + github.com/segmentio/kafka-go v0.4.40 + golang.org/x/exp v0.0.0-20230626212559-97b1e661b5df +) + +require ( + github.com/fsnotify/fsnotify v1.6.0 // indirect + github.com/klauspost/compress v1.16.7 // indirect + github.com/pierrec/lz4/v4 v4.1.18 // indirect + github.com/pkg/errors v0.9.1 // indirect + github.com/stretchr/testify v1.8.4 // indirect + golang.org/x/net v0.11.0 // indirect + golang.org/x/sys v0.10.0 // indirect +) diff --git a/go.sum b/go.sum index 252d9f0..b46f45b 100644 --- a/go.sum +++ b/go.sum @@ -1,2 +1,71 @@ +github.com/abh/certman v0.4.0 h1:XHoDtb0YyRQPclaHMrBDlKTVZpNjTK6vhB0S3Bd/Sbs= +github.com/abh/certman v0.4.0/go.mod h1:x8QhpKVZifmV1Hdiwdg9gLo2GMPAxezz1s3zrVnPs+I= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= +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/fsnotify/fsnotify v1.6.0 h1:n+5WquG0fcWoWp6xPWfHdbskMCQaFnG6PfBrh1Ky4HY= +github.com/fsnotify/fsnotify v1.6.0/go.mod h1:sl3t1tCWJFWoRz9R8WJCbQihKKwmorjAbSClcnxKAGw= +github.com/klauspost/compress v1.15.9 h1:wKRjX6JRtDdrE9qwa4b/Cip7ACOshUI4smpCQanqjSY= +github.com/klauspost/compress v1.15.9/go.mod h1:PhcZ0MbTNciWF3rruxRgKxI5NkcHHrHUDtV4Yw2GlzU= +github.com/klauspost/compress v1.16.7 h1:2mk3MPGNzKyxErAw8YaohYh69+pa4sIQSC0fPGCFR9I= +github.com/klauspost/compress v1.16.7/go.mod h1:ntbaceVETuRiXiv4DpjP66DpAtAGkEQskQzEyD//IeE= +github.com/pierrec/lz4/v4 v4.1.15 h1:MO0/ucJhngq7299dKLwIMtgTfbkoSPF6AoMYDd8Q4q0= +github.com/pierrec/lz4/v4 v4.1.15/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4= +github.com/pierrec/lz4/v4 v4.1.18 h1:xaKrnTkyoqfh1YItXl56+6KJNVYWlEEPuAQW9xsplYQ= +github.com/pierrec/lz4/v4 v4.1.18/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4= +github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4= +github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0= +github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM= +github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4= +github.com/segmentio/kafka-go v0.4.40 h1:sszW7c0/uyv7+VcTW5trx2ZC7kMWDTxuR/6Zn8U1bm8= +github.com/segmentio/kafka-go v0.4.40/go.mod h1:naFEZc5MQKdeL3W6NkZIAn48Y6AazqjRFDhnXeg3h94= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw= +github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= +github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU= +github.com/stretchr/testify v1.8.4 h1:CcVxjf3Q8PM0mHUKJCdn+eZZtm5yQwehR5yeSVQQcUk= +github.com/stretchr/testify v1.8.4/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo= +github.com/xdg-go/pbkdf2 v1.0.0 h1:Su7DPu48wXMwC3bs7MCNG+z4FhcyEuz5dlvchbq0B0c= +github.com/xdg-go/pbkdf2 v1.0.0/go.mod h1:jrpuAogTd400dnrH08LKmI/xc1MbPOebTwRqcT5RDeI= +github.com/xdg-go/scram v1.1.2 h1:FHX5I5B4i4hKRVRBCFRxq1iQRej7WO3hhBuJf+UUySY= +github.com/xdg-go/scram v1.1.2/go.mod h1:RT/sEzTbU5y00aCK8UOx6R7YryM0iF1N2MOmC3kKLN4= +github.com/xdg-go/stringprep v1.0.4 h1:XLI/Ng3O1Atzq0oBs3TWm+5ZVgkq2aqdlvP9JtoZ6c8= +github.com/xdg-go/stringprep v1.0.4/go.mod h1:mPGuuIYwz7CmR2bT9j4GbQqutWS1zV24gijq1dTyGkM= +github.com/yuin/goldmark v1.4.13/go.mod h1:6yULJ656Px+3vBD8DxQVa3kxgyrAnzto9xy5taEt/CY= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= +golang.org/x/crypto v0.0.0-20210921155107-089bfa567519/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc= golang.org/x/exp v0.0.0-20230626212559-97b1e661b5df h1:UA2aFVmmsIlefxMk29Dp2juaUSth8Pyn3Tq5Y5mJGME= golang.org/x/exp v0.0.0-20230626212559-97b1e661b5df/go.mod h1:FXUEEKJgO7OQYeo8N01OfiKP8RXMtf6e8aTskBGqWdc= +golang.org/x/mod v0.6.0-dev.0.20220419223038-86c51ed26bb4/go.mod h1:jJ57K6gSWd91VN4djpZkiMVwK6gcyfeH4XE8wZrZaV4= +golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg= +golang.org/x/net v0.0.0-20220722155237-a158d28d115b/go.mod h1:XRhObCWvk6IyKnWLug+ECip1KBveYUHfp+8e9klMJ9c= +golang.org/x/net v0.11.0 h1:Gi2tvZIJyBtO9SDr1q9h5hEQCp/4L2RQ+ar0qjx2oNU= +golang.org/x/net v0.11.0/go.mod h1:2L/ixqYpgIVXmeoSA/4Lu7BzTG4KIyPIryS4IsOd1oQ= +golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sync v0.0.0-20220722155255-886fb9371eb4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM= +golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= +golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20220520151302-bc2c85ada10a/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20220722155257-8c9f86f7a55f/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.0.0-20220908164124-27713097b956/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.9.0 h1:KS/R3tvhPqvJvwcKfnBHJwwthS11LRhmM5D59eEXa0s= +golang.org/x/sys v0.9.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/sys v0.10.0 h1:SqMFp9UcQJZa+pmYuAKjd9xq1f0j5rLcDIk0mj4qAsA= +golang.org/x/sys v0.10.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg= +golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo= +golang.org/x/term v0.0.0-20210927222741-03fcf44c2211/go.mod h1:jbD1KX2456YbFQfuXm/mYQcufACuNUgVhRMnK/tPxf8= +golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ= +golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ= +golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ= +golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ= +golang.org/x/text v0.10.0 h1:UpjohKhiEgNc0CSauXmwYftY1+LlaC75SJwh0SgCX58= +golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ= +golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo= +golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc= +golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0= +gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0= +gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= +gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA= +gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM= diff --git a/kafka/kafka.go b/kafka/kafka.go new file mode 100644 index 0000000..b5015cf --- /dev/null +++ b/kafka/kafka.go @@ -0,0 +1,196 @@ +package kafconn + +import ( + "context" + "crypto/tls" + "crypto/x509" + "errors" + "fmt" + "log" + "os" + "time" + + "github.com/abh/certman" + "github.com/segmentio/kafka-go" +) + +const ( + // bootstrapAddress = "logs-kafka-bootstrap:9093" + bootstrapAddress = "logs-kafka-0.logs-kafka-brokers.ntppipeline.svc.cluster.local:9093" + kafkaGroup = "logferry-api" + + // kafkaMaxBatchSize = 250000 + // kafkaMinBatchSize = 1000 +) + +type TLSSetup struct { + CA string + Key string + Cert string +} + +type Kafka struct { + tls TLSSetup + + transport *kafka.Transport + brokers []kafka.Broker + + dialer *kafka.Dialer + conn *kafka.Conn + + l *log.Logger + + // wr *kafka.Writer + +} + +func (k *Kafka) tlsConfig() (*tls.Config, error) { + + cm, err := certman.New(k.tls.Cert, k.tls.Key) + if err != nil { + return nil, err + } + cm.Logger(k.l) + + err = cm.Watch() + if err != nil { + return nil, err + } + + capool, err := k.caPool() + if err != nil { + return nil, err + } + + tlsConfig := &tls.Config{ + InsecureSkipVerify: true, + // MinVersion: tls.VersionTLS12, + RootCAs: capool, + GetClientCertificate: cm.GetClientCertificate, + } + return tlsConfig, nil +} + +func (k *Kafka) caPool() (*x509.CertPool, error) { + capool := x509.NewCertPool() + + pem, err := os.ReadFile(k.tls.CA) + if err != nil { + return nil, err + } + + if !capool.AppendCertsFromPEM(pem) { + return nil, errors.New("credentials: failed to append certificates") + } + + return capool, nil +} + +func (k *Kafka) kafkaDialer() (*kafka.Dialer, error) { + tlsConfig, err := k.tlsConfig() + if err != nil { + return nil, err + } + + dialer := &kafka.Dialer{ + Timeout: 10 * time.Second, + DualStack: false, + TLS: tlsConfig, + } + + return dialer, nil +} + +func (k *Kafka) kafkaTransport(ctx context.Context) (*kafka.Transport, error) { + tlsConfig, err := k.tlsConfig() + if err != nil { + return nil, err + } + + transport := &kafka.Transport{ + DialTimeout: 10 * time.Second, + IdleTimeout: 60 * time.Second, + TLS: tlsConfig, + Context: ctx, + } + + return transport, nil +} + +func NewKafka(ctx context.Context, tls TLSSetup) (*Kafka, error) { + l := log.New(os.Stdout, "kafka reader: ", log.Ldate|log.Ltime|log.LUTC|log.Lmsgprefix|log.Lmicroseconds) + + k := &Kafka{ + l: l, + tls: tls, + } + + if len(k.tls.CA) == 0 || len(k.tls.Cert) == 0 { + return nil, fmt.Errorf("tls setup missing") + } + + dialer, err := k.kafkaDialer() + if err != nil { + return nil, err + } + k.dialer = dialer + + transport, err := k.kafkaTransport(ctx) + if err != nil { + return nil, err + } + k.transport = transport + + conn, err := dialer.DialContext(ctx, "tcp", bootstrapAddress) + if err != nil { + return nil, fmt.Errorf("kafka conn error: %s", err) + } + + k.conn = conn + + brokers, err := conn.Brokers() + if err != nil { + return nil, fmt.Errorf("could not get brokers: %s", err) + } + k.brokers = brokers + + for _, b := range brokers { + l.Printf("broker host: %s", b.Host) + } + + // wr := kafka.NewWriter( + // kafka.WriterConfig{ + // Brokers: []string{brokerAddress}, + // Topic: kafkaTopic, + // Dialer: dialer, + // Logger: l, + // }, + // ) + + // k.wr = wr + + return k, nil +} + +func (k *Kafka) Writer(topic string) (*kafka.Writer, error) { + + addrs := []string{} + + for _, b := range k.brokers { + addrs = append(addrs, fmt.Sprintf("%s:%d", b.Host, b.Port)) + } + + // https://pkg.go.dev/github.com/segmentio/kafka-go#Writer + w := &kafka.Writer{ + Addr: kafka.TCP(addrs...), + Transport: k.transport, + Topic: topic, + Balancer: &kafka.LeastBytes{}, + BatchSize: 2000, + Compression: kafka.Snappy, + Logger: k.l, + ErrorLogger: k.l, + } + + return w, nil +}