[docker] Build docker in Travis PR & Fix image build failing (#9787)

Co-authored-by: Ian Rodney <ian.rodney@gmail.com>

docker/autoscaler/Dockerfile

@@ -1,6 +1,4 @@
-FROM rayproject/base-deps
-ARG WHEEL_PATH
-ARG WHEEL_NAME
+FROM rayproject/ray
 
 # Install kubectl.
 RUN apt-get update \
@@ -13,14 +11,10 @@ RUN apt-get update \
     && apt-get clean 
 
 # We have to uninstall wrapt this way for Tensorflow compatibility
-COPY ../../python/requirements.txt ./
-COPY ../../python/requirements_autoscaler.txt ./
-COPY $WHEEL_PATH $WHEEL_NAME
+COPY requirements.txt ./
+COPY requirements_autoscaler.txt ./
 
-RUN pip --no-cache-dir install -r requirements.txt \ 
-    && pip --no-cache-dir install -r requirements_autoscaler.txt \
-    && pip --no-cache-dir install $WHEEL_NAME[all]
+RUN $HOME/anaconda3/bin/pip --no-cache-dir install -r requirements.txt \ 
+    && $HOME/anaconda3/bin/pip --no-cache-dir install -r requirements_autoscaler.txt \
+    && rm requirements.txt && rm requirements_autoscaler.txt
 
-# For Click
-ENV LC_ALL=C.UTF-8
-ENV LANG=C.UTF-8

docker/base-deps/Dockerfile

@@ -1,6 +1,8 @@
 # The base-deps Docker image installs main libraries needed to run Ray
 
 FROM ubuntu:focal
+ENV TZ=America/Los_Angeles
+ARG DEBIAN_FRONTEND=noninteractive
 RUN apt-get update -y && apt-get upgrade -y \
     && apt-get install -y \
         git \
@@ -9,13 +11,11 @@ RUN apt-get update -y && apt-get upgrade -y \
         build-essential \
         curl \
         unzip \
-        libgtk2.0-dev \
-        zlib1g-dev \
-        libgl1-mesa-dev \
         tmux \
         screen \
         rsync \
         openssh-client \
+    && rm -rf /var/lib/apt/lists/* \
     && apt-get clean \
     && wget \
         --quiet "https://repo.anaconda.com/miniconda/Miniconda3-latest-Linux-x86_64.sh" \
@@ -35,4 +35,5 @@ RUN apt-get update -y && apt-get upgrade -y \
     # AttributeError: 'numpy.ufunc' object has no attribute '__module__'
     && $HOME/anaconda3/bin/pip uninstall -y dask
 
-ENV PATH "$HOME/anaconda3/bin:$PATH"
+# TODO(ilr) $HOME seems to point to result in "" instead of "/root"
+ENV PATH "/root/anaconda3/bin:$PATH"

docker/examples/Dockerfile

@@ -5,7 +5,7 @@ FROM ray-project/deploy
 # This updates numpy to 1.14 and mutes errors from other libraries
 RUN conda install -y numpy
 # Needed to run Tune example with a 'plot' call - which does not actually render a plot, but throws an error.
-RUN apt-get install -y zlib1g-dev libgl1-mesa-dev
+RUN apt-get install -y zlib1g-dev libgl1-mesa-dev libgtk2.0-dev
 RUN pip install -U pip
 RUN pip install gym[atari] opencv-python-headless tensorflow lz4 pytest-timeout smart_open tensorflow_probability dm_tree
 RUN pip install -U h5py  # Mutes FutureWarnings

docker/ray/Dockerfile

@@ -0,0 +1,7 @@
+FROM rayproject/base-deps
+ARG WHEEL_PATH
+# For Click
+ENV LC_ALL=C.UTF-8
+ENV LANG=C.UTF-8
+COPY $WHEEL_PATH .
+RUN $HOME/anaconda3/bin/pip --no-cache-dir install `basename $WHEEL_PATH`[all]