Enable tls_config in oauth2 (#9550)

* Enable tls_config in oauth2

Signed-off-by: Julien Pivotto <roidelapluie@inuits.eu>

config/config_test.go

@@ -103,6 +103,10 @@ var expectedConf = &Config{
 					ClientID:     "123",
 					ClientSecret: "456",
 					TokenURL:     "http://remote1/auth",
+					TLSConfig: config.TLSConfig{
+						CertFile: filepath.FromSlash("testdata/valid_cert_file"),
+						KeyFile:  filepath.FromSlash("testdata/valid_key_file"),
+					},
 				},
 				FollowRedirects: true,
 			},

config/testdata/conf.good.yml

@@ -23,6 +23,9 @@ remote_write:
       client_id: "123"
       client_secret: "456"
       token_url: "http://remote1/auth"
+      tls_config:
+        cert_file: valid_cert_file
+        key_file: valid_key_file
 
   - url: http://remote2/push
     name: rw_tls

docs/configuration/configuration.md

@@ -383,6 +383,10 @@ token_url: <string>
 # Optional parameters to append to the token URL.
 endpoint_params:
   [ <string>: <string> ... ]
+
+# Configures the token request's TLS settings.
+tls_config:
+  [ <tls_config> ]
 ```
 
 ### `<azure_sd_config>`

go.mod

@@ -47,7 +47,7 @@ require (
 	github.com/prometheus/alertmanager v0.23.0
 	github.com/prometheus/client_golang v1.11.0
 	github.com/prometheus/client_model v0.2.0
-	github.com/prometheus/common v0.31.1
+	github.com/prometheus/common v0.32.1
 	github.com/prometheus/common/sigv4 v0.1.0
 	github.com/prometheus/exporter-toolkit v0.7.0
 	github.com/scaleway/scaleway-sdk-go v1.0.0-beta.7.0.20210223165440-c65ae3540d44

go.sum

@@ -1143,8 +1143,8 @@ github.com/prometheus/common v0.10.0/go.mod h1:Tlit/dnDKsSWFlCLTWaA1cyBgKHSMdTB8
 github.com/prometheus/common v0.26.0/go.mod h1:M7rCNAaPfAosfx8veZJCuw84e35h3Cfd9VFqTh1DIvc=
 github.com/prometheus/common v0.29.0/go.mod h1:vu+V0TpY+O6vW9J44gczi3Ap/oXXR10b+M/gUGO4Hls=
 github.com/prometheus/common v0.30.0/go.mod h1:vu+V0TpY+O6vW9J44gczi3Ap/oXXR10b+M/gUGO4Hls=
-github.com/prometheus/common v0.31.1 h1:d18hG4PkHnNAKNMOmFuXFaiY8Us0nird/2m60uS1AMs=
-github.com/prometheus/common v0.31.1/go.mod h1:vu+V0TpY+O6vW9J44gczi3Ap/oXXR10b+M/gUGO4Hls=
+github.com/prometheus/common v0.32.1 h1:hWIdL3N2HoUx3B8j3YN9mWor0qhY/NlEKZEaXxuIRh4=
+github.com/prometheus/common v0.32.1/go.mod h1:vu+V0TpY+O6vW9J44gczi3Ap/oXXR10b+M/gUGO4Hls=
 github.com/prometheus/common/sigv4 v0.1.0 h1:qoVebwtwwEhS85Czm2dSROY5fTo2PAPEVdDeppTwGX4=
 github.com/prometheus/common/sigv4 v0.1.0/go.mod h1:2Jkxxk9yYvCkE5G1sQT7GuEXm57JrvHu9k5YwTjsNtI=
 github.com/prometheus/exporter-toolkit v0.6.1/go.mod h1:ZUBIj498ePooX9t/2xtDjeQYwvRpiPP2lh5u4iblj2g=