docker: clean up volume API

src/docker.js

@@ -573,10 +573,10 @@ function memoryUsage(containerId, callback) {
     });
 }
 
-function createVolume(app, name, volumeDataDir, callback) {
-    assert.strictEqual(typeof app, 'object');
+function createVolume(name, volumeDataDir, labels, callback) {
     assert.strictEqual(typeof name, 'string');
     assert.strictEqual(typeof volumeDataDir, 'string');
+    assert.strictEqual(typeof labels, 'object');
     assert.strictEqual(typeof callback, 'function');
 
     const volumeOptions = {
@@ -587,10 +587,7 @@ function createVolume(app, name, volumeDataDir, callback) {
             device: volumeDataDir,
             o: 'bind'
         },
-        Labels: {
-            'fqdn': app.fqdn,
-            'appId': app.id
-        },
+        Labels: labels
     };
 
     // requires sudo because the path can be outside appsdata
@@ -605,8 +602,7 @@ function createVolume(app, name, volumeDataDir, callback) {
     });
 }
 
-function clearVolume(app, name, options, callback) {
-    assert.strictEqual(typeof app, 'object');
+function clearVolume(name, options, callback) {
     assert.strictEqual(typeof name, 'string');
     assert.strictEqual(typeof options, 'object');
     assert.strictEqual(typeof callback, 'function');
@@ -626,14 +622,13 @@ function clearVolume(app, name, options, callback) {
 }
 
 // this only removes the volume and not the data
-function removeVolume(app, name, callback) {
-    assert.strictEqual(typeof app, 'object');
+function removeVolume(name, callback) {
     assert.strictEqual(typeof name, 'string');
     assert.strictEqual(typeof callback, 'function');
 
     let volume = gConnection.getVolume(name);
     volume.remove(function (error) {
-        if (error && error.statusCode !== 404) return callback(new BoxError(BoxError.DOCKER_ERROR, `removeVolume: Error removing volume of ${app.id} ${error.message}`));
+        if (error && error.statusCode !== 404) return callback(new BoxError(BoxError.DOCKER_ERROR, `removeVolume: Error removing volume: ${error.message}`));
 
         callback();
     });