provisioner/ansible-local: templates for role, playbook paths [GH-749]

CHANGELOG.md

@@ -66,6 +66,8 @@ BUG FIXES:
 * builder/virtualbox: don't download guest additions if disabled. [GH-731]
 * post-processor/vsphere: Uploads VM properly. [GH-694]
 * post-processor/vsphere: Process user variables.
+* provisioner/ansible-local: all configurations are processed as templates
+  [GH-749]
 * provisioner/ansible-local: playbook paths are properly validated
   as directories, not files. [GH-710]
 * provisioner/chef-solo: Environments are recognized. [GH-726]

provisioner/ansible-local/provisioner.go

@@ -54,6 +54,7 @@ func (p *Provisioner) Prepare(raws ...interface{}) error {
 
 	// Templates
 	templates := map[string]*string{
+		"playbook_file": &p.config.PlaybookFile,
 		"staging_dir":   &p.config.StagingDir,
 	}
 
@@ -66,6 +67,22 @@ func (p *Provisioner) Prepare(raws ...interface{}) error {
 		}
 	}
 
+	sliceTemplates := map[string][]string{
+		"playbook_paths": p.config.PlaybookPaths,
+		"role_paths":     p.config.RolePaths,
+	}
+
+	for n, slice := range sliceTemplates {
+		for i, elem := range slice {
+			var err error
+			slice[i], err = p.config.tpl.Process(elem, nil)
+			if err != nil {
+				errs = packer.MultiErrorAppend(
+					errs, fmt.Errorf("Error processing %s[%d]: %s", n, i, err))
+			}
+		}
+	}
+
 	// Validation
 	err = validateFileConfig(p.config.PlaybookFile, "playbook_file", true)
 	if err != nil {