add support for datadog continuous profiling (#105)

* add support for datadog continuous profiling

* check output of profiler.Start

app/config/headers.go

@@ -31,6 +31,7 @@ const (
 	VAR_NAME_DD_AGENT_HOST = "datadog-agent-host"
 	VAR_NAME_DD_AGENT_PORT = "datadog-agent-port"
 	VAR_NAME_DD_TAGS       = "datadog-tags"
+	VAR_NAME_DD_PROFILER   = "datadog-profiler"
 )
 
 // Replicate cli flag names

go.mod

@@ -14,51 +14,63 @@ require (
 	github.com/golang/mock v1.6.0
 	github.com/google/go-cmp v0.5.9
 	github.com/jackc/pglogrepl v0.0.0-20230428004623-0c5b98f52784
-	github.com/jackc/pgx/v5 v5.0.3
-	github.com/json-iterator/go v1.1.12
+	github.com/jackc/pgx/v5 v5.3.1
 	github.com/pkg/errors v0.9.1
 	github.com/rcrowley/go-metrics v0.0.0-20201227073835-cf1acfcdf475
 	github.com/sirupsen/logrus v1.9.0
 	github.com/streadway/amqp v0.0.0-20181205114330-a314942b2fd9
-	github.com/stretchr/testify v1.8.1
+	github.com/stretchr/testify v1.8.3
+	gopkg.in/DataDog/dd-trace-go.v1 v1.53.0
 	gopkg.in/Nextdoor/cli.v1 v1.20.2
 )
 
 require (
 	github.com/BurntSushi/toml v1.2.1 // indirect
+	github.com/DataDog/appsec-internal-go v1.0.0 // indirect
+	github.com/DataDog/datadog-agent/pkg/remoteconfig/state v0.46.0-rc.4 // indirect
+	github.com/DataDog/go-libddwaf v1.4.1 // indirect
+	github.com/DataDog/go-tuf v0.3.0--fix-localmeta-fork // indirect
+	github.com/DataDog/gostackparse v0.5.0 // indirect
 	github.com/Microsoft/go-winio v0.6.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/eapache/go-resiliency v1.3.0 // indirect
 	github.com/eapache/go-xerial-snappy v0.0.0-20230111030713-bf00bc1b83b6 // indirect
 	github.com/eapache/queue v1.1.0 // indirect
+	github.com/ebitengine/purego v0.4.0-alpha.4.0.20230519103000-ee8dcecc618f // indirect
 	github.com/fsouza/go-dockerclient v1.9.7 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
-	github.com/google/uuid v1.0.0 // indirect
-	github.com/hashicorp/errwrap v1.0.0 // indirect
+	github.com/google/pprof v0.0.0-20230509042627-b1315fad0c5a // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
 	github.com/hashicorp/go-multierror v1.1.1 // indirect
 	github.com/hashicorp/go-uuid v1.0.3 // indirect
 	github.com/jackc/pgio v1.0.0 // indirect
 	github.com/jackc/pgpassfile v1.0.0 // indirect
-	github.com/jackc/pgservicefile v0.0.0-20200714003250-2b9c44734f2b // indirect
+	github.com/jackc/pgservicefile v0.0.0-20221227161230-091c0ba34f0a // indirect
 	github.com/jcmturner/aescts/v2 v2.0.0 // indirect
 	github.com/jcmturner/dnsutils/v2 v2.0.0 // indirect
 	github.com/jcmturner/gofork v1.7.6 // indirect
 	github.com/jcmturner/gokrb5/v8 v8.4.3 // indirect
 	github.com/jcmturner/rpc/v2 v2.0.3 // indirect
 	github.com/jmespath/go-jmespath v0.4.0 // indirect
-	github.com/klauspost/compress v1.15.14 // indirect
-	github.com/modern-go/concurrent v0.0.0-20180228061459-e0a39a4cb421 // indirect
-	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/klauspost/compress v1.16.3 // indirect
 	github.com/pborman/uuid v1.2.0 // indirect
 	github.com/pierrec/lz4/v4 v4.1.17 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/richardartoul/molecule v1.0.1-0.20221107223329-32cfee06a052 // indirect
+	github.com/secure-systems-lab/go-securesystemslib v0.6.0 // indirect
+	github.com/spaolacci/murmur3 v0.0.0-20180118202830-f09979ecbc72 // indirect
 	github.com/tiago4orion/conjure v0.0.0-20150908101743-93cb30b9d218 // indirect
-	golang.org/x/crypto v0.0.0-20220829220503-c86fa9a7ed90 // indirect
+	go.uber.org/atomic v1.11.0 // indirect
+	go4.org/intern v0.0.0-20211027215823-ae77deb06f29 // indirect
+	go4.org/unsafe/assume-no-moving-gc v0.0.0-20220617031537-928513b29760 // indirect
+	golang.org/x/crypto v0.9.0 // indirect
 	golang.org/x/mod v0.9.0 // indirect
-	golang.org/x/net v0.8.0 // indirect
-	golang.org/x/sys v0.6.0 // indirect
-	golang.org/x/text v0.8.0 // indirect
+	golang.org/x/net v0.10.0 // indirect
+	golang.org/x/sys v0.10.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
 	golang.org/x/tools v0.7.0 // indirect
-	gopkg.in/yaml.v2 v2.2.8 // indirect
+	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	inet.af/netaddr v0.0.0-20220811202034-502d2d690317 // indirect
 )