diff --git a/plugin/converter/jsonnet/jsonnet.go b/plugin/converter/jsonnet/jsonnet.go
index bdb4efa2..4a51aa85 100644
--- a/plugin/converter/jsonnet/jsonnet.go
+++ b/plugin/converter/jsonnet/jsonnet.go
@@ -3,19 +3,31 @@ package jsonnet
 import (
 	"bytes"
 	"fmt"
+	"strconv"
 
 	"github.com/drone/drone/core"
 
 	"github.com/google/go-jsonnet"
 )
 
+const repo = "repo."
+const build = "build."
+const param = "param."
+
 func Parse(req *core.ConvertArgs, template *core.Template, templateData map[string]interface{}) (string, error) {
-	// create the jsonnet vm
 	vm := jsonnet.MakeVM()
 	vm.MaxStack = 500
 	vm.StringOutput = false
 	vm.ErrorFormatter.SetMaxStackTraceSize(20)
 
+	//map build/repo parameters
+	if req.Build != nil {
+		mapBuild(req.Build, vm)
+	}
+	if req.Repo != nil {
+		mapRepo(req.Repo, vm)
+	}
+
 	var jsonnetFile string
 	var jsonentFileName string
 	if template != nil {
@@ -33,6 +45,7 @@ func Parse(req *core.ConvertArgs, template *core.Template, templateData map[stri
 			vm.ExtVar(key, val)
 		}
 	}
+
 	// convert the jsonnet file to yaml
 	buf := new(bytes.Buffer)
 	docs, err := vm.EvaluateSnippetStream(jsonentFileName, jsonnetFile)
@@ -54,3 +67,52 @@ func Parse(req *core.ConvertArgs, template *core.Template, templateData map[stri
 
 	return buf.String(), nil
 }
+
+func mapBuild(v *core.Build, vm *jsonnet.VM) {
+	vm.ExtVar(build+"event", v.Event)
+	vm.ExtVar(build+"action", v.Action)
+	vm.ExtVar(build+"environment", v.Deploy)
+	vm.ExtVar(build+"link", v.Link)
+	vm.ExtVar(build+"branch", v.Target)
+	vm.ExtVar(build+"source", v.Source)
+	vm.ExtVar(build+"before", v.Before)
+	vm.ExtVar(build+"after", v.After)
+	vm.ExtVar(build+"target", v.Target)
+	vm.ExtVar(build+"ref", v.Ref)
+	vm.ExtVar(build+"commit", v.After)
+	vm.ExtVar(build+"ref", v.Ref)
+	vm.ExtVar(build+"title", v.Title)
+	vm.ExtVar(build+"message", v.Message)
+	vm.ExtVar(build+"source_repo", v.Fork)
+	vm.ExtVar(build+"author_login", v.Author)
+	vm.ExtVar(build+"author_name", v.AuthorName)
+	vm.ExtVar(build+"author_email", v.AuthorEmail)
+	vm.ExtVar(build+"author_avatar", v.AuthorAvatar)
+	vm.ExtVar(build+"sender", v.Sender)
+	fromMap(v.Params, vm)
+}
+
+func mapRepo(v *core.Repository, vm *jsonnet.VM) {
+	vm.ExtVar(repo+"uid", v.UID)
+	vm.ExtVar(repo+"name", v.Name)
+	vm.ExtVar(repo+"namespace", v.Namespace)
+	vm.ExtVar(repo+"slug", v.Slug)
+	vm.ExtVar(repo+"git_http_url", v.HTTPURL)
+	vm.ExtVar(repo+"git_ssh_url", v.SSHURL)
+	vm.ExtVar(repo+"link", v.Link)
+	vm.ExtVar(repo+"branch", v.Branch)
+	vm.ExtVar(repo+"config", v.Config)
+	vm.ExtVar(repo+"private", strconv.FormatBool(v.Private))
+	vm.ExtVar(repo+"visibility", v.Visibility)
+	vm.ExtVar(repo+"active", strconv.FormatBool(v.Active))
+	vm.ExtVar(repo+"trusted", strconv.FormatBool(v.Trusted))
+	vm.ExtVar(repo+"protected", strconv.FormatBool(v.Protected))
+	vm.ExtVar(repo+"ignore_forks", strconv.FormatBool(v.IgnoreForks))
+	vm.ExtVar(repo+"ignore_pull_requests", strconv.FormatBool(v.IgnorePulls))
+}
+
+func fromMap(m map[string]string, vm *jsonnet.VM) {
+	for k, v := range m {
+		vm.ExtVar(build+param+k, v)
+	}
+}