diff --git a/Dockerfile b/Dockerfile
index 78b0c1a..d15d3ab 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -46,6 +46,8 @@ RUN curl -sL --retry 3 \
   | tar -x -C /usr/ \
  && rm -rf $HADOOP_HOME/share/doc \
  && chown -R root:root $HADOOP_HOME
+COPY conf/hadoop/core-site.xml /tmp/core-site.xml
+RUN cp /tmp/core-site.xml $HADOOP_HOME/etc/hadoop
 
 # SPARK
 ENV SPARK_VERSION 2.4.1
diff --git a/README.md b/README.md
index 5679220..c70f7c1 100644
--- a/README.md
+++ b/README.md
@@ -13,6 +13,10 @@ To start `spark-shell` with your AWS credentials:
 
     docker run --rm -it -e "AWS_ACCESS_KEY_ID=YOURKEY" -e "AWS_SECRET_ACCESS_KEY=YOURSECRET" -p 4040:4040 gettyimages/spark bin/spark-shell
 
+To start `spark-shell` with your desired AWS_PROFILE from ${HOME}/.aws/credentials:
+
+    docker run --rm -it -e "AWS_PROFILE=YOURPROFILE" -v "${HOME}/.aws":/root/.aws -p 4040:4040 gettyimages/spark bin/spark-shell
+
 To do a thing with Pyspark
 
     echo -e "import pyspark\n\nprint(pyspark.SparkContext().parallelize(range(0, 10)).count())" > count.py
diff --git a/conf/hadoop/core-site.xml b/conf/hadoop/core-site.xml
new file mode 100644
index 0000000..fb3f538
--- /dev/null
+++ b/conf/hadoop/core-site.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-stylesheet type="text/xsl" href="configuration.xsl"?>
+<configuration>
+	<property>
+		<name>fs.s3a.aws.credentials.provider</name>
+		<value>com.amazonaws.auth.DefaultAWSCredentialsProviderChain</value>
+	</property>
+</configuration>