PR comments (reduce image size & make dsbulk non-version specific)

Author: pravinbhat

Dockerfile

@@ -1,15 +1,23 @@
 FROM eclipse-temurin:8-jammy
 
-RUN apt update && apt install -y openssh-server vim
+RUN apt update && apt install -y openssh-server vim --no-install-recommends
 RUN service ssh start
 
 # Add all migration tools to path
 RUN mkdir -p /assets/
 
 # Download all migration dependencies
-RUN cd /assets && curl -OL https://downloads.datastax.com/dsbulk/dsbulk.tar.gz && tar -xzf ./dsbulk.tar.gz && rm ./dsbulk.tar.gz
-RUN cd /assets && curl -OL https://downloads.datastax.com/enterprise/cqlsh-astra.tar.gz && tar -xzf ./cqlsh-astra.tar.gz && rm ./cqlsh-astra.tar.gz
-RUN cd /assets && curl -OL https://archive.apache.org/dist/spark/spark-2.4.8/spark-2.4.8-bin-hadoop2.7.tgz && tar -xzf ./spark-2.4.8-bin-hadoop2.7.tgz && rm ./spark-2.4.8-bin-hadoop2.7.tgz
+RUN cd /assets && \
+    curl -OL https://downloads.datastax.com/dsbulk/dsbulk.tar.gz && \
+    tar -xzf ./dsbulk.tar.gz && \
+    rm ./dsbulk.tar.gz && \
+    mv /assets/dsbulk-1.10.0 /assets/dsbulk  && \
+    curl -OL https://downloads.datastax.com/enterprise/cqlsh-astra.tar.gz && \
+    tar -xzf ./cqlsh-astra.tar.gz && \
+    rm ./cqlsh-astra.tar.gz && \
+    curl -OL https://archive.apache.org/dist/spark/spark-2.4.8/spark-2.4.8-bin-hadoop2.7.tgz && \
+    tar -xzf ./spark-2.4.8-bin-hadoop2.7.tgz && \
+    rm ./spark-2.4.8-bin-hadoop2.7.tgz
 
 # Copy CDM jar & template files
 COPY ./target/cassandra-data-migrator-*.jar /assets/
@@ -19,7 +27,7 @@ COPY ./src/resources/primary_key_rows.csv /assets/
 COPY ./src/resources/runCommands.txt /assets/
 
 # Add all migration tools to path
-ENV PATH="${PATH}:/assets/dsbulk-1.10.0/bin/:/assets/cqlsh-astra/bin/:/assets/spark-2.4.8-bin-hadoop2.7/bin/"
+ENV PATH="${PATH}:/assets/dsbulk/bin/:/assets/cqlsh-astra/bin/:/assets/spark-2.4.8-bin-hadoop2.7/bin/"
 
 EXPOSE 22