sumologicexporter: use Sumo Logic Extension for authentication and to…

… obtain endpoint (#32383)

**Description:**

Use Sumo Logic Extension for authentication and to obtain the endpoint.
This is part of #31479 to make #32315 smaller, therefore it may have
some unused code (like `getSignalURL`). Also OTLP format is not
supported yet for neither of the formats

It also partially fixes #32375 (partially because as long as there is no
a otlp support, data won't be pushed to Sumo Logic)

**Link to tracking Issue:** #31479

**Testing:**

- unit tests
- manual tests

**Documentation:**

- ensures that Sumo Logic Extension documentation is valid

---------

Signed-off-by: Dominik Rosiek <drosiek@sumologic.com>

.chloggen/drosiek-exporter-extension.yaml

@@ -0,0 +1,27 @@
+# Use this changelog template to create an entry for release notes.
+
+# One of 'breaking', 'deprecation', 'new_component', 'enhancement', 'bug_fix'
+change_type: enhancement
+
+# The name of the component, or a single word describing the area of concern, (e.g. filelogreceiver)
+component: sumologicexporter
+
+# A brief description of the change.  Surround your text with quotes ("") if it needs to start with a backtick (`).
+note: use Sumo Logic Extension for authentication and to obtain endpoint
+
+# Mandatory: One or more tracking issues related to the change. You can use the PR number here if no issue exists.
+issues: [31479]
+
+# (Optional) One or more lines of additional information to render under the primary note.
+# These lines will be padded with 2 spaces and then inserted directly into the document.
+# Use pipe (|) for multiline entries.
+subtext:
+
+# If your change doesn't affect end users or the exported elements of any package,
+# you should instead start your pull request title with [chore] or use the "Skip Changelog" label.
+# Optional: The change log or logs in which this entry should be included.
+# e.g. '[user]' or '[user, api]'
+# Include 'user' if the change is relevant to end users.
+# Include 'api' if there is a change to a library API.
+# Default: '[user]'
+change_logs: [user]

cmd/configschema/go.mod

@@ -451,6 +451,7 @@ require (
 	github.com/mistifyio/go-zfs v2.1.2-0.20190413222219-f784269be439+incompatible // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mitchellh/go-ps v1.0.0 // indirect
 	github.com/mitchellh/hashstructure v1.1.0 // indirect
 	github.com/mitchellh/hashstructure/v2 v2.0.2 // indirect
 	github.com/mitchellh/mapstructure v1.5.1-0.20231216201459-8508981c8b6c // indirect
@@ -495,6 +496,7 @@ require (
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/sigv4authextension v0.98.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/storage/dbstorage v0.98.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/extension/storage/filestorage v0.98.0 // indirect
+	github.com/open-telemetry/opentelemetry-collector-contrib/extension/sumologicextension v0.98.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/aws/cwlogs v0.98.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/aws/metrics v0.98.0 // indirect
 	github.com/open-telemetry/opentelemetry-collector-contrib/internal/aws/proxy v0.98.0 // indirect
@@ -1149,3 +1151,5 @@ replace github.com/open-telemetry/opentelemetry-collector-contrib/extension/enco
 replace github.com/open-telemetry/opentelemetry-collector-contrib/extension/encoding => ../../extension/encoding
 
 replace github.com/open-telemetry/opentelemetry-collector-contrib/connector/grafanacloudconnector => ../../connector/grafanacloudconnector
+
+replace github.com/open-telemetry/opentelemetry-collector-contrib/extension/sumologicextension => ../../extension/sumologicextension

exporter/sumologicexporter/config.go

@@ -6,11 +6,16 @@ package sumologicexporter // import "github.com/open-telemetry/opentelemetry-col
 import (
 	"errors"
 	"fmt"
+	"net/url"
 	"time"
 
+	"go.opentelemetry.io/collector/component"
+	"go.opentelemetry.io/collector/config/configauth"
 	"go.opentelemetry.io/collector/config/confighttp"
 	"go.opentelemetry.io/collector/config/configretry"
 	"go.opentelemetry.io/collector/exporter/exporterhelper"
+
+	"github.com/open-telemetry/opentelemetry-collector-contrib/extension/sumologicextension"
 )
 
 // Config defines configuration for Sumo Logic exporter.
@@ -62,9 +67,12 @@ type Config struct {
 
 // createDefaultClientConfig returns default http client settings
 func createDefaultClientConfig() confighttp.ClientConfig {
-	config := confighttp.NewDefaultClientConfig()
-	config.Timeout = defaultTimeout
-	return config
+	return confighttp.ClientConfig{
+		Timeout: defaultTimeout,
+		Auth: &configauth.Authentication{
+			AuthenticatorID: component.NewID(sumologicextension.NewFactory().Type()),
+		},
+	}
 }
 
 // LogFormatType represents log_format
@@ -148,8 +156,14 @@ func (cfg *Config) Validate() error {
 		return fmt.Errorf("unexpected compression encoding: %s", cfg.CompressEncoding)
 	}
 
-	if len(cfg.ClientConfig.Endpoint) == 0 {
-		return errors.New("endpoint is not set")
+	if len(cfg.ClientConfig.Endpoint) == 0 && cfg.ClientConfig.Auth == nil {
+		return errors.New("no endpoint and no auth extension specified")
+	}
+
+	if _, err := url.Parse(cfg.ClientConfig.Endpoint); err != nil {
+		return fmt.Errorf("failed parsing endpoint URL: %s; err: %w",
+			cfg.ClientConfig.Endpoint, err,
+		)
 	}
 
 	if err := cfg.QueueSettings.Validate(); err != nil {

exporter/sumologicexporter/config_test.go

@@ -58,7 +58,8 @@ func TestConfigValidation(t *testing.T) {
 			expectedErr: "unexpected compression encoding: test_format",
 		},
 		{
-			name: "invalid endpoint",
+			name:        "no endpoint and no auth extension specified",
+			expectedErr: "no endpoint and no auth extension specified",
 			cfg: &Config{
 				LogFormat:        "json",
 				MetricFormat:     "carbon2",
@@ -67,7 +68,6 @@ func TestConfigValidation(t *testing.T) {
 					Timeout: defaultTimeout,
 				},
 			},
-			expectedErr: "endpoint is not set",
 		},
 		{
 			name: "invalid log format",