move coreos-cloudinit into config/cloudinit

Signed-off-by: Sven Dowideit <SvenDowideit@home.org.au>

config/cloudinit/system/flannel.go

@@ -0,0 +1,44 @@
+// Copyright 2015 CoreOS, Inc.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package system
+
+import (
+	"path"
+	"strings"
+
+	"github.com/rancher/os/config/cloudinit/config"
+)
+
+// flannel is a top-level structure which embeds its underlying configuration,
+// config.Flannel, and provides the system-specific Unit().
+type Flannel struct {
+	config.Flannel
+}
+
+func (fl Flannel) envVars() string {
+	return strings.Join(getEnvVars(fl.Flannel), "\n")
+}
+
+func (fl Flannel) File() (*File, error) {
+	vars := fl.envVars()
+	if vars == "" {
+		return nil, nil
+	}
+	return &File{config.File{
+		Path:               path.Join("run", "flannel", "options.env"),
+		RawFilePermissions: "0644",
+		Content:            vars,
+	}}, nil
+}