docker: info method

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

src/docker.ts

@@ -1,3 +1,4 @@
+import * as core from '@actions/core';
 import * as exec from '@actions/exec';
 
 export class Docker {
@@ -18,4 +19,17 @@ export class Docker {
         return false;
       });
   }
+
+  public static async info(standalone?: boolean) {
+    if (standalone) {
+      core.info(`Docker info skipped in standalone mode`);
+    } else {
+      await exec.exec('docker', ['version'], {
+        failOnStdErr: false
+      });
+      await exec.exec('docker', ['info'], {
+        failOnStdErr: false
+      });
+    }
+  }
 }