Merge pull request #61 from james-nesbitt/createnofailifcontainerexists

make the create operation more graceful if the container already exists

operation_create.go

@@ -102,8 +102,14 @@ func (node *Node) Create(filters []string, cmdOverride []string, onlyDefault boo
  * Create a container for a node
  */
 func (instance *Instance) Create(overrideCmd []string, force bool) bool {
+
 	node := instance.Node
 
+	if !force && instance.HasContainer(false) {
+		node.log.Info(node.Name+"["+instance.Name+"]: Skipping node instance, which already has a container")
+		return false
+	}
+
 	/**
 		* Transform node data, into a format that can be used
 		* for the actual Docker call.  This involves transforming

operation_up.go

@@ -39,6 +39,8 @@ from beginning to fully operational, with a single command.
 SYNTAX:
 	$/> coach {target} up
 
+	{targets} what target node instances the operation should process ($/> coach help targets)
+
 TODO:
 	- building images may take a long time, so maybe it should be optional;
 	- pulling images may take a long time, so maybe it should be optional;