hubclient: use retryablehttp for http retries (#97)

fixes #95

Signed-off-by: Nick Santos <[email protected]>

Author: nicks

go.mod

@@ -5,6 +5,7 @@ go 1.23.0
 toolchain go1.24.1
 
 require (
+	github.com/hashicorp/go-retryablehttp v0.7.7
 	github.com/hashicorp/terraform-plugin-docs v0.19.4
 	github.com/hashicorp/terraform-plugin-framework v1.10.0
 	github.com/hashicorp/terraform-plugin-framework-validators v0.13.0

go.sum

@@ -89,6 +89,8 @@ github.com/hashicorp/go-multierror v1.1.1 h1:H5DkEtf6CXdFp0N0Em5UCwQpXMWke8IA0+l
 github.com/hashicorp/go-multierror v1.1.1/go.mod h1:iw975J/qwKPdAO1clOe2L8331t/9/fmwbPZ6JB6eMoM=
 github.com/hashicorp/go-plugin v1.6.1 h1:P7MR2UP6gNKGPp+y7EZw2kOiq4IR9WiqLvp0XOsVdwI=
 github.com/hashicorp/go-plugin v1.6.1/go.mod h1:XPHFku2tFo3o3QKFgSYo+cghcUhw1NA1hZyMK0PWAw0=
+github.com/hashicorp/go-retryablehttp v0.7.7 h1:C8hUCYzor8PIfXHa4UrZkU4VvK8o9ISHxT2Q8+VepXU=
+github.com/hashicorp/go-retryablehttp v0.7.7/go.mod h1:pkQpWZeYWskR+D1tR2O5OcBFOxfA7DoAO6xtkuQnHTk=
 github.com/hashicorp/go-uuid v1.0.0/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=
 github.com/hashicorp/go-uuid v1.0.3 h1:2gKiV6YVmrJ1i2CKKa9obLvRieoRGviZFL26PcT/Co8=
 github.com/hashicorp/go-uuid v1.0.3/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/bN7x4byOro=

internal/hubclient/client.go

@@ -27,6 +27,7 @@ import (
 	"time"
 
 	"github.com/go-jose/go-jose/v3/jwt"
+	"github.com/hashicorp/go-retryablehttp"
 )
 
 type Auth struct {
@@ -69,18 +70,22 @@ func NewClient(config Config) *Client {
 		version = "dev"
 	}
 
+	baseClient := &http.Client{
+		Timeout: time.Minute,
+		Transport: &roundTripper{
+			userAgent: fmt.Sprintf("terraform-provider-docker/%s", version),
+		},
+	}
+	retryClient := retryablehttp.NewClient()
+	retryClient.HTTPClient = baseClient
+
 	return &Client{
 		BaseURL: config.BaseURL,
 		auth: Auth{
 			Username: config.Username,
 			Password: config.Password,
 		},
-		HTTPClient: &http.Client{
-			Timeout: time.Minute,
-			Transport: &roundTripper{
-				userAgent: fmt.Sprintf("terraform-provider-docker/%s", version),
-			},
-		},
+		HTTPClient: retryClient.StandardClient(),
 	}
 }