diff --git a/Dockerfile b/Dockerfile
index c638b783..056ff5af 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,5 +1,5 @@
 FROM alpine:latest as py-ea
-ARG ELASTALERT_VERSION=v0.1.39
+ARG ELASTALERT_VERSION=v0.2.0b2
 ENV ELASTALERT_VERSION=${ELASTALERT_VERSION}
 # URL from which to download Elastalert.
 ARG ELASTALERT_URL=https://github.com/Yelp/elastalert/archive/$ELASTALERT_VERSION.zip
@@ -45,5 +45,12 @@ COPY config/config.json config/config.json
 COPY rule_templates/ /opt/elastalert/rule_templates
 COPY elastalert_modules/ /opt/elastalert/elastalert_modules
 
+# Add default rules directory
+# Set permission as unpriviledged user (1000:1000), compatible with Kubernetes
+RUN mkdir -p /opt/elastalert/rules/ /opt/elastalert/server_data/tests/ \
+    && chown -R node:node /opt
+
+USER node
+
 EXPOSE 3030
 ENTRYPOINT ["npm", "start"]
diff --git a/Makefile b/Makefile
index 82255fc0..9a7610e0 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,4 @@
-v ?= v0.1.39
+v ?= v0.2.0b2
 
 all: build
 
diff --git a/package.json b/package.json
index 0ea6ac65..b1150496 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "@bitsensor/elastalert",
-  "version": "2.0.1",
+  "version": "3.0.0-beta.0",
   "description": "A server that runs ElastAlert and exposes REST API's for manipulating rules and alerts.",
   "license": "MIT",
   "main": "index.js",
diff --git a/src/controllers/process/index.js b/src/controllers/process/index.js
index 83e7f40d..6ad53432 100644
--- a/src/controllers/process/index.js
+++ b/src/controllers/process/index.js
@@ -48,10 +48,10 @@ export default class ProcessController {
     });
 
     // Redirect stdin/stderr to logger
-    if (indexCreate.stdout.toString() !== '') {
+    if (indexCreate.stdout && indexCreate.stdout.toString() !== '') {
       logger.info(indexCreate.stdout.toString());
     }
-    if (indexCreate.stderr.toString() !== '') {
+    if (indexCreate.stderr && indexCreate.stderr.toString() !== '') {
       logger.error(indexCreate.stderr.toString());
     }