Cherry-pick OTel bugfixes into release-v0.35 (#4714)

Co-authored-by: Robert Fratto <robertfratto@gmail.com>

CHANGELOG.md

@@ -7,6 +7,18 @@ This document contains a historical list of changes between releases. Only
 changes that impact end-user behavior are listed; changes to documentation or
 internal API changes are not present.
 
+v0.35.3 (2023-08-07)
+--------------------
+
+### Bugfixes
+
+- Fix a bug which prevented the `app_agent_receiver` integration from processing traces. (@ptodev)
+
+- (Agent static mode) Jaeger remote sampling works again, through a new `jaeger_remote_sampling`
+  entry in the traces config. It is no longer configurable through the jaeger receiver.
+  Support Jaeger remote sampling was removed accidentally in v0.35, and it is now restored, 
+  albeit via a different config entry.
+
 v0.35.2 (2023-07-27)
 --------------------
 
@@ -93,6 +105,10 @@ v0.35.0 (2023-07-18)
 
 - The `remote_sampling` block has been removed from `otelcol.receiver.jaeger`. (@ptodev)
 
+- (Agent static mode) Jaeger remote sampling used to be configured using the Jaeger receiver configuration. 
+  This receiver was updated to a new version, where support for remote sampling in the receiver was removed. 
+  Jaeger remote sampling is available as a separate configuration field starting in v0.35.3. (@ptodev)
+
 ### Deprecations
 
 - `otelcol.exporter.jaeger` has been deprecated and will be removed in Agent v0.38.0. (@ptodev)

docs/sources/static/configuration/traces-config.md

@@ -42,9 +42,9 @@ name: <string>
 [ batch: <batch.config> ]
 
 remote_write:
-  # host:port to send traces to
+  # host:port to send traces to.
   # Here must be the port of gRPC receiver, not the Tempo default port.
-  # Example for cloud instances:  `tempo-us-central1.grafana.net:443`
+  # Example for cloud instances: `tempo-us-central1.grafana.net:443`
   # For local / on-premises instances: `localhost:55680` or `tempo.example.com:14250`
   # Note: for non-encrypted connections you must also set `insecure: true`
   - endpoint: <string>
@@ -77,30 +77,55 @@ remote_write:
 
     # Configures opentelemetry exporters to use the OpenTelemetry auth extension `oauth2clientauthextension`.
     # Can not be used in combination with `basic_auth`.
-    # See https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/main/extension/oauth2clientauthextension/README.md
+    # See https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/v0.80.0/extension/oauth2clientauthextension/README.md
     oauth2:
       # Configures the TLS settings specific to the oauth2 client
       # The client identifier issued to the oauth client
       [ client_id: <string> ]
       # The secret string associated with the oauth client
       [ client_secret: <string> ]
+      # Additional parameters for requests to the token endpoint
+      [ endpoint_params: <string> ]
       # The resource server's token endpoint URL
       [ token_url: <string> ]
       # Optional, requested permissions associated with the oauth client
       [ scopes: [<string>] ]
       # Optional, specifies the timeout fetching tokens from the token_url. Default: no timeout
       [ timeout: <duration> ]
+      # TLS client configuration for the underneath client to authorization server.
+      # https://github.com/open-telemetry/opentelemetry-collector/blob/v0.80.0/config/configtls/README.md
       tls:
         # Disable validation of the server certificate.
         [ insecure: <bool> | default = false ]
+        # InsecureSkipVerify will enable TLS but not verify the certificate.
+        [ insecure_skip_verify: <bool> | default = false ]
+        # ServerName requested by client for virtual hosting.
+        # This sets the ServerName in the TLSConfig. Please refer to
+        # https://godoc.org/crypto/tls#Config for more information.
+        [ server_name_override: <string> ]
         # Path to the CA cert. For a client this verifies the server certificate. If empty uses system root CA.
         [ ca_file: <string> ]
+        # In memory PEM encoded cert.
+        [ ca_pem: <string> ]
         # Path to the TLS cert to use for TLS required connections
         [ cert_file: <string> ]
+        # In memory PEM encoded TLS cert to use for TLS required connections.
+        [ cert_pem: <string> ]
         # Path to the TLS key to use for TLS required connections
         [ key_file: <string> ]
-
-    # Controls TLS settings of the exporter's client. See https://github.com/open-telemetry/opentelemetry-collector/blob/v0.21.0/config/configtls/README.md
+        # In memory PEM encoded TLS key to use for TLS required connections.
+        [ key_pem: <string> ]
+        # Minimum acceptable TLS version.
+        [ min_version: <string> | default = "1.2" ]
+        # Maximum acceptable TLS version.
+        # If not set, it is handled by crypto/tls - currently it is "1.3".
+        [ max_version: <string> | default = "" ]
+        # ReloadInterval specifies the duration after which the certificate will be reloaded.
+        # If not set, it will never be reloaded.
+        [ reload_interval: <duration> ]
+
+    # Controls TLS settings of the exporter's client:
+    # https://prometheus.io/docs/prometheus/2.45/configuration/configuration/#tls_config
     # This should be used only if `insecure` is set to false
     tls_config:
       # Path to the CA cert. For a client this verifies the server certificate. If empty uses system root CA.
@@ -163,7 +188,7 @@ automatic_logging:
 
 # Receiver configurations are mapped directly into the OpenTelemetry receivers
 # block. At least one receiver is required.
-# The Agent uses OpenTelemetry v0.36.0. Refer to the corresponding receiver's config.
+# The Agent uses OpenTelemetry v0.80.0. Refer to the corresponding receiver's config.
 #
 # Supported receivers: otlp, jaeger, kafka, opencensus and zipkin.
 receivers: <receivers>
@@ -292,7 +317,16 @@ load_balancing:
         [ - <string> ... ]
     dns:
       hostname: <string>
-      [ port: <int> ]
+      [ port: <int> | default = 4317 ]
+      # Resolver interval
+      [ interval: <duration> | default = 5s ]
+      # Resolver timeout 
+      [ timeout: <duration> | default = 1s ]
+
+  # routing_key can be either "traceID" or "service":
+  # * "service": exports spans based on their service name. 
+  # * "traceID": exports spans based on their traceID.
+  [ routing_key: <string> | default = "traceID" ]
 
   # receiver_port is the port the instance will use to receive load balanced traces
   receiver_port: [ <int> | default = 4318 ]
@@ -374,22 +408,41 @@ service_graphs:
     # grpc status codes not to be considered as failure
     grpc:
       [ - <int> ... ]
+
+# jaeger_remote_sampling configures one or more jaeger remote sampling extensions.
+# For more details about the configuration please consult the OpenTelemetry documentation:
+# https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/v0.80.0/extension/jaegerremotesampling
+# 
+# Example config:
+# 
+# jaeger_remote_sampling:
+#   - source:
+#       remote:
+#         endpoint: jaeger-collector:14250
+#         tls:
+#           insecure: true
+#   - source:
+#       reload_interval: 1s
+#       file: /etc/otelcol/sampling_strategies.json
+# 
+jaeger_remote_sampling:
+  [ - <jaeger_remote_sampling> ... ]
 ```
 
 > **Note:** More information on the following types can be found on the
 > documentation for their respective projects:
 >
-* [`attributes.config`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/b2327211df976e0a57ef0425493448988772a16b/processor/attributesprocessor)
-* [`batch.config`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector/tree/1f5dd9f9a566a937ec15093ca3bc377fba86f5f9/processor/batchprocessor)
-* [`otlpexporter.sending_queue`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector/tree/1f5dd9f9a566a937ec15093ca3bc377fba86f5f9/exporter/otlpexporter)
-* [`otlpexporter.retry_on_failure`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector/tree/1f5dd9f9a566a937ec15093ca3bc377fba86f5f9/exporter/otlpexporter)
+* [`attributes.config`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/v0.80.0/processor/attributesprocessor)
+* [`batch.config`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector/tree/v0.80.0/processor/batchprocessor)
+* [`otlpexporter.sending_queue`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector/tree/v0.80.0/exporter/otlpexporter)
+* [`otlpexporter.retry_on_failure`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector/tree/v0.80.0/exporter/otlpexporter)
 * `receivers`:
-  * [`jaegerreceiver`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/b2327211df976e0a57ef0425493448988772a16b/receiver/jaegerreceiver)
-  * [`kafkareceiver`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/b2327211df976e0a57ef0425493448988772a16b/receiver/kafkareceiver)
-  * [`otlpreceiver`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector/tree/1f5dd9f9a566a937ec15093ca3bc377fba86f5f9/receiver/otlpreceiver)
-  * [`opencensusreceiver`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/b2327211df976e0a57ef0425493448988772a16b/receiver/opencensusreceiver)
-  * [`zipkinreceiver`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/b2327211df976e0a57ef0425493448988772a16b/receiver/zipkinreceiver)
-* [`scrape_config`: Prometheus](https://prometheus.io/docs/prometheus/2.42/configuration/configuration/#scrape_config)
-* [`spanmetricsprocessor.latency_histogram_buckets`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/b2327211df976e0a57ef0425493448988772a16b/processor/spanmetricsprocessor/config.go#L38-L47)
-* [`spanmetricsprocessor.dimensions`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/b2327211df976e0a57ef0425493448988772a16b/processor/spanmetricsprocessor/config.go#L38-L47)
-* [`tailsamplingprocessor.policies`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/b2327211df976e0a57ef0425493448988772a16b/processor/tailsamplingprocessor)
+  * [`jaegerreceiver`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/v0.80.0/receiver/jaegerreceiver)
+  * [`kafkareceiver`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/v0.80.0/receiver/kafkareceiver)
+  * [`otlpreceiver`: OpenTelemetry-Collector](https://github.com/open-telemetry/opentelemetry-collector/tree/v0.80.0/receiver/otlpreceiver)
+  * [`opencensusreceiver`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/v0.80.0/receiver/opencensusreceiver)
+  * [`zipkinreceiver`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/v0.80.0/receiver/zipkinreceiver)
+* [`scrape_config`: Prometheus](https://prometheus.io/docs/prometheus/2.45/configuration/configuration/#scrape_config)
+* [`spanmetricsprocessor.latency_histogram_buckets`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/v0.80.0/processor/spanmetricsprocessor/config.go#L37-L39)
+* [`spanmetricsprocessor.dimensions`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/blob/v0.80.0/processor/spanmetricsprocessor/config.go#L41-L48)
+* [`tailsamplingprocessor.policies`: OpenTelemetry-Collector-Contrib](https://github.com/open-telemetry/opentelemetry-collector-contrib/tree/v0.80.0/processor/tailsamplingprocessor)

docs/sources/static/upgrade-guide.md

@@ -22,6 +22,33 @@ static mode.
 
 ## v0.35
 
+### Breaking change: Jaeger remote sampling no longer configurable using the Jaeger receiver
+
+Jaeger remote sampling used to be configured using the Jaeger receiver configuration. This receiver was updated to a new version, where support for remote sampling in the receiver was removed. 
+
+Jaeger remote sampling is available as a separate configuration field starting in v0.35.3.  
+
+Old configuration example:
+
+```yaml
+receivers:
+  jaeger:
+    protocols:
+      grpc:
+    remote_sampling:
+      strategy_file: /etc/agent/strategies.json
+      strategy_file_reload_interval: 1s
+```
+
+New configuration example:
+
+```yaml
+jaeger_remote_sampling:
+  - source:
+      file: /etc/agent/strategies.json
+      reload_interval: 1s
+```
+
 ### Breaking change: `auth` and `version` attributes from `walk_params` block of SNMP integration have been removed
 
 The SNMP integrations (both v1 and v2) wrap a new version of SNMP exporter which introduces a new configuration file format. 

go.mod

@@ -106,6 +106,7 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/basicauthextension v0.80.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokenauthextension v0.80.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/headerssetterextension v0.80.0
+	github.com/open-telemetry/opentelemetry-collector-contrib/extension/jaegerremotesampling v0.80.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/oauth2clientauthextension v0.80.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/sigv4authextension v0.80.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/pdatautil v0.80.0
@@ -505,7 +506,7 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/filter v0.80.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/sharedcomponent v0.80.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/batchpersignal v0.80.0 // indirect
-	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl v0.80.0 // indirect
+	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/ottl v0.80.0
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/resourcetotelemetry v0.80.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/jaeger v0.80.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/pkg/translator/opencensus v0.80.0 // indirect
@@ -550,8 +551,8 @@ require (
 	github.com/snowflakedb/gosnowflake v1.6.22 // indirect
 	github.com/softlayer/softlayer-go v0.0.0-20180806151055-260589d94c7d // indirect
 	github.com/soheilhy/cmux v0.1.5 // indirect
-	github.com/spf13/afero v1.9.3 // indirect
-	github.com/spf13/cast v1.5.0 // indirect
+	github.com/spf13/afero v1.9.5 // indirect
+	github.com/spf13/cast v1.5.1 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
 	github.com/spf13/viper v1.15.0 // indirect

go.sum

@@ -855,8 +855,6 @@ github.com/cilium/ebpf v0.2.0/go.mod h1:To2CFviqOWL/M0gIMsvSMlqe7em/l1ALkX1PyjrX
 github.com/cilium/ebpf v0.4.0/go.mod h1:4tRaxcgiL706VnOzHOdBlY8IEAIdxINsQBcU4xJJXRs=
 github.com/cilium/ebpf v0.6.2/go.mod h1:4tRaxcgiL706VnOzHOdBlY8IEAIdxINsQBcU4xJJXRs=
 github.com/cilium/ebpf v0.7.0/go.mod h1:/oI2+1shJiTGAMgl6/RgJr36Eo1jzrRcAWbcXO2usCA=
-github.com/cilium/ebpf v0.10.0 h1:nk5HPMeoBXtOzbkZBWym+ZWq1GIiHUsBFXxwewXAHLQ=
-github.com/cilium/ebpf v0.10.0/go.mod h1:DPiVdY/kT534dgc9ERmvP8mWA+9gvwgKfRvk4nNWnoE=
 github.com/cilium/ebpf v0.11.0 h1:V8gS/bTCCjX9uUnkUFUpPsksM8n1lXBAvHcpiFk1X2Y=
 github.com/cilium/ebpf v0.11.0/go.mod h1:WE7CZAnqOL2RouJ4f1uyNhqr2P4CCvXFIqdRDUgWsVs=
 github.com/circonus-labs/circonus-gometrics v0.0.0-20161109192337-d17a8420c36e/go.mod h1:nmEj6Dob7S7YxXgwXpfOuvO54S+tGdZdw9fuRZt25Ag=
@@ -1238,7 +1236,7 @@ github.com/frankban/quicktest v1.10.2/go.mod h1:K+q6oSqb0W0Ininfk863uOk1lMy69l/P
 github.com/frankban/quicktest v1.11.3/go.mod h1:wRf/ReqHper53s+kmmSZizM8NamnL3IM0I9ntUbOk+k=
 github.com/frankban/quicktest v1.13.0/go.mod h1:qLE0fzW0VuyUAJgPU19zByoIr0HtCHN/r/VLSOOIySU=
 github.com/frankban/quicktest v1.14.3/go.mod h1:mgiwOwqx65TmIk1wJ6Q7wvnVMocbUorkibMOrVTHZps=
-github.com/frankban/quicktest v1.14.4 h1:g2rn0vABPOOXmZUj+vbmUp0lPoXEMuhTpIluN0XL9UY=
+github.com/frankban/quicktest v1.14.5 h1:dfYrrRyLtiqT9GyKXgdh+k4inNeTvmGbuSgZ3lx3GhA=
 github.com/fsnotify/fsnotify v1.4.7/go.mod h1:jwhsz4b93w/PPRr/qN1Yymfu8t87LnFCMoQvtojpjFo=
 github.com/fsnotify/fsnotify v1.4.9/go.mod h1:znqG4EE+3YCdAaPaxE2ZRY/06pZUdp0tY4IgpuI1SZQ=
 github.com/fsnotify/fsnotify v1.5.1/go.mod h1:T3375wBYaZdLLcVNkcVbzGHY7f1l/uK5T5Ai1i3InKU=
@@ -1752,8 +1750,6 @@ github.com/grafana/perflib_exporter v0.1.1-0.20230511173423-6166026bd090 h1:Ko80
 github.com/grafana/perflib_exporter v0.1.1-0.20230511173423-6166026bd090/go.mod h1:MinSWm88jguXFFrGsP56PtleUb4Qtm4tNRH/wXNXRTI=
 github.com/grafana/phlare/api v0.1.2 h1:1jrwd3KnsXMzj/tJih9likx5EvbY3pbvLbDqAAYem30=
 github.com/grafana/phlare/api v0.1.2/go.mod h1:29vcLwFDmZBDce2jwFIMtzvof7fzPadT8VMKw9ks7FU=
-github.com/grafana/phlare/ebpf v0.1.0 h1:u4E9BpXoqjvw1WCyM0TeZHbHWochwwJ/rPFzot/QZmU=
-github.com/grafana/phlare/ebpf v0.1.0/go.mod h1:5RGW1YCur7bhRlhATPc25drRYbzpekhh+f2HCmmfE3g=
 github.com/grafana/phlare/ebpf v0.1.1 h1:BnT06KcNDNr46yz2BY3YiaC7ECIU2qUwvi2sbsi8E3A=
 github.com/grafana/phlare/ebpf v0.1.1/go.mod h1:rh3+TSpue02kR7DW26O1qnlCLoVbiS0leHia1y/0QFM=
 github.com/grafana/postgres_exporter v0.8.1-0.20210722175051-db35d7c2f520 h1:HnFWqxhoSF3WC7sKAdMZ+SRXvHLVZlZ3sbQjuUlTqkw=
@@ -2551,6 +2547,8 @@ github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokena
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/bearertokenauthextension v0.80.0/go.mod h1:1uefCMOB5VnqgP5F22GeSoqkm8pYbWUmxFHBUg54WnE=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/headerssetterextension v0.80.0 h1:1g6IDFOWzDpZScQRb+80G54DlPaCckkITJ3l0gUS/dk=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/headerssetterextension v0.80.0/go.mod h1:j6U+t0w0uKYSltgY3s+4BskNVOj7E3+OxGFs3FPOTZs=
+github.com/open-telemetry/opentelemetry-collector-contrib/extension/jaegerremotesampling v0.80.0 h1:hglhSIcQRNd/5yuak0LFd1rsH4/rP3hTIaU8/LaOaHY=
+github.com/open-telemetry/opentelemetry-collector-contrib/extension/jaegerremotesampling v0.80.0/go.mod h1:C677/QL+Oav+yqeLaCIFOXw7qQAw1Pm4sqTmVwIM7M0=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/oauth2clientauthextension v0.80.0 h1:4+k4uS/pDLbkh2yMmMXSycKHq6oEycWpJToh/SUxLIM=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/oauth2clientauthextension v0.80.0/go.mod h1:YJrHRLfgBQBt8RT5p61Fbkx01KuesGlrpZzOTIE3Mfw=
 github.com/open-telemetry/opentelemetry-collector-contrib/extension/sigv4authextension v0.80.0 h1:bDOzezMdoK2m5Q7h/kzd5qBZRqX1B4hrIIzxKiDuFLE=
@@ -2984,12 +2982,13 @@ github.com/spf13/afero v1.3.4/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z
 github.com/spf13/afero v1.6.0/go.mod h1:Ai8FlHk4v/PARR026UzYexafAt9roJ7LcLMAmO6Z93I=
 github.com/spf13/afero v1.8.2/go.mod h1:CtAatgMJh6bJEIs48Ay/FOnkljP3WeGUG0MC1RfAqwo=
 github.com/spf13/afero v1.9.2/go.mod h1:iUV7ddyEEZPO5gA3zD4fJt6iStLlL+Lg4m2cihcDf8Y=
-github.com/spf13/afero v1.9.3 h1:41FoI0fD7OR7mGcKE/aOiLkGreyf8ifIOQmJANWogMk=
-github.com/spf13/afero v1.9.3/go.mod h1:iUV7ddyEEZPO5gA3zD4fJt6iStLlL+Lg4m2cihcDf8Y=
+github.com/spf13/afero v1.9.5 h1:stMpOSZFs//0Lv29HduCmli3GUfpFoF3Y1Q/aXj/wVM=
+github.com/spf13/afero v1.9.5/go.mod h1:UBogFpq8E9Hx+xc5CNTTEpTnuHVmXDwZcZcE1eb/UhQ=
 github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
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