refactor(Docker): Rework of cli and cpu-sampling Docker images

Using Ubuntu Xenial (LTS) as base to benefit from stable packages instead of compiling dependencies.

Author: gfieni

docker/Dockerfile-cli

@@ -0,0 +1,14 @@
+FROM ubuntu:xenial
+
+ENV REQUIRED_PACKAGES openjdk-8-jre-headless libpfm4 libbluetooth3 libbluetooth-dev
+
+RUN apt-get update && \
+    apt-get install -y ${REQUIRED_PACKAGES} && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY powerapi-cli/target/universal/stage /powerapi-cli
+
+WORKDIR /powerapi-cli
+
+ENTRYPOINT ["/powerapi-cli/bin/powerapi"]

docker/cli/Dockerfile

@@ -0,0 +1,15 @@
+FROM ubuntu:xenial
+
+ENV REQUIRED_PACKAGES openjdk-8-jre-headless libpfm4 libbluetooth3 libbluetooth-dev psmisc cpulimit stress
+
+RUN apt-get update && \
+    apt-get install -y ${REQUIRED_PACKAGES} && \
+    apt-get clean && \
+    rm -rf /var/lib/apt/lists/*
+
+COPY powerapi-sampling-cpu/target/universal/stage /powerapi-sampling-cpu
+
+WORKDIR /powerapi-sampling-cpu
+
+ENTRYPOINT ["/powerapi-sampling-cpu/bin/sampling-cpu"]
+CMD ["--all", "results/sampling", "results/processing", "results/computing"]