Add common/sigv4 with the sigv4 config

Signed-off-by: Tyler Reid <tyler.reid@grafana.com>

config/notifiers.go

@@ -20,6 +20,7 @@ import (
 	"time"
 
 	"github.com/pkg/errors"
+	"github.com/prometheus/common/sigv4"
 
 	commoncfg "github.com/prometheus/common/config"
 )
@@ -589,25 +590,13 @@ func (c *PushoverConfig) UnmarshalYAML(unmarshal func(interface{}) error) error
 	return nil
 }
 
-// SigV4Config is the configuration for signing remote write requests with
-// AWS's SigV4 verification process. Empty values will be retrieved using the
-// AWS default credentials chain.
-// TODO: Move to common.
-type SigV4Config struct {
-	Region    string `yaml:"region,omitempty"`
-	AccessKey string `yaml:"access_key,omitempty"`
-	SecretKey Secret `yaml:"secret_key,omitempty"`
-	Profile   string `yaml:"profile,omitempty"`
-	RoleARN   string `yaml:"role_arn,omitempty"`
-}
-
 type SNSConfig struct {
 	NotifierConfig `yaml:",inline" json:",inline"`
 
 	HTTPConfig *commoncfg.HTTPClientConfig `yaml:"http_config,omitempty" json:"http_config,omitempty"`
 
 	APIUrl      string            `yaml:"api_url,omitempty" json:"api_url,omitempty"`
-	Sigv4       SigV4Config       `yaml:"sigv4" json:"sigv4"`
+	Sigv4       sigv4.SigV4Config `yaml:"sigv4" json:"sigv4"`
 	TopicARN    string            `yaml:"topic_arn,omitempty" json:"topic_arn,omitempty"`
 	PhoneNumber string            `yaml:"phone_number,omitempty" json:"phone_number,omitempty"`
 	TargetARN   string            `yaml:"target_arn,omitempty" json:"target_arn,omitempty"`

go.mod

@@ -23,16 +23,17 @@ require (
 	github.com/oklog/run v1.1.0
 	github.com/oklog/ulid v1.3.1
 	github.com/pkg/errors v0.9.1
-	github.com/prometheus/client_golang v1.10.0
-	github.com/prometheus/common v0.24.0
+	github.com/prometheus/client_golang v1.11.0
+	github.com/prometheus/common v0.29.0
+	github.com/prometheus/common/sigv4 v0.1.0
 	github.com/prometheus/exporter-toolkit v0.5.1
 	github.com/rs/cors v1.7.0
 	github.com/shurcooL/httpfs v0.0.0-20190707220628-8d4bc4ba7749
 	github.com/shurcooL/vfsgen v0.0.0-20200824052919-0d455de96546
 	github.com/stretchr/testify v1.7.0
 	github.com/xlab/treeprint v1.1.0
 	go.uber.org/atomic v1.5.0
-	golang.org/x/net v0.0.0-20210421230115-4e50805a0758
+	golang.org/x/net v0.0.0-20210525063256-abc453219eb5
 	golang.org/x/tools v0.1.0
 	gopkg.in/alecthomas/kingpin.v2 v2.2.6
 	gopkg.in/yaml.v2 v2.4.0