Add keyword DEFAULT_PATH_FOR_NON_LISTED_NODES

In order to setup default config.

deploy/config-default.yaml

+kind: ConfigMap
+apiVersion: v1
+metadata:
+  name: local-path-config
+  namespace: default
+data:
+  config.json: |-
+        {
+                "nodePathMap":[
+                {
+                        "node":"DEFAULT_PATH_FOR_NON_LISTED_NODES",
+                        "paths":["/opt/local-path-provisioner"]
+                }
+                ]
+        }
+

deploy/example-configmap.yaml → deploy/config-example.yaml

@@ -8,12 +8,12 @@ data:
         {
                 "nodePathMap":[
                 {
-                        "node":"yasker-lp-dev1",
-                        "paths":["/opt", "/data1"]
+                        "node":"DEFAULT_PATH_FOR_NON_LISTED_NODES",
+                        "paths":["/opt"]
                 },
                 {
-                        "node":"yasker-lp-dev2",
-                        "paths":["/opt"]
+                        "node":"yasker-lp-dev1",
+                        "paths":["/opt", "/data1"]
                 },
                 {
                         "node":"yasker-lp-dev3",

deploy/provisioner.yaml

@@ -55,7 +55,7 @@ spec:
       serviceAccountName: local-path-provisioner-service-account
       containers:
         - name: local-path-provisioner
-          image: yasker/local-path-provisioner:63df7c1
+          image: yasker/local-path-provisioner:e862e16
           imagePullPolicy: Always
           command:
           - local-path-provisioner

provisioner.go

@@ -19,6 +19,8 @@ import (
 
 const (
 	KeyNode = "kubernetes.io/hostname"
+
+	NodeDefaultNonListedNodes = "DEFAULT_PATH_FOR_NON_LISTED_NODES"
 )
 
 var (
@@ -50,7 +52,11 @@ type Config struct {
 func (c *Config) getRandomPathOnNode(node string) (string, error) {
 	npMap := c.NodePathMap[node]
 	if npMap == nil {
-		return "", fmt.Errorf("config doesn't contain node %v", node)
+		npMap = c.NodePathMap[NodeDefaultNonListedNodes]
+		if npMap == nil {
+			return "", fmt.Errorf("config doesn't contain node %v, and no %v available", node, NodeDefaultNonListedNodes)
+		}
+		logrus.Debugf("config doesn't contain node %v, use %v instead", node, NodeDefaultNonListedNodes)
 	}
 	paths := npMap.Paths
 	if len(paths) == 0 {