buildx: configDir

Signed-off-by: CrazyMax <crazy-max@users.noreply.github.com>

src/buildx/buildx.ts

@@ -14,6 +14,7 @@
  * limitations under the License.
  */
 
+import path from 'path';
 import * as exec from '@actions/exec';
 import * as semver from 'semver';
 
@@ -42,6 +43,10 @@ export class Buildx {
     this.standalone = opts?.standalone ?? !Docker.isAvailable;
   }
 
+  static get configDir(): string {
+    return process.env.BUILDX_CONFIG || path.join(Docker.configDir, 'buildx');
+  }
+
   public getCommand(args: Array<string>) {
     return {
       command: this.standalone ? 'buildx' : 'docker',