Add in new CI Dockerfile, remove old Dockerfile, entrypoint, etc.

Update README a bit.

README.md

@@ -233,9 +233,14 @@ The following options are supported:
 
 *   [`build.sbt`](build.sbt): Scala Build Tool build configuration file
 *   [`.sbtopts`](.sbtopts): Command line options for SBT, including JVM parameters
-*   [`project`](project): Additional configuration for SBT project, plugins, utility, versions
+*   [`project`](project): Additional configuration for SBT project, plugins, utility,
+    versions, including metals and bloop
 *   [`src/main/scala`](src/main/scala): Application and utility code
 *   [`src/test/scala`](src/test/scala): Unit test files
+*   [`sbt`][sbt): Script used in github CI to download sbt and all the scala
+    dependencies during CI tests (`.github/workflow/ci.yaml`)
+*   [`ci/Dockerfile`](ci/Dockerfile): Dockerfile used to build the docker image for
+    CI tests
 
 ## Spark Job Commands
 

Dockerfile → ci/Dockerfile

@@ -1,32 +1,22 @@
-FROM gcr.io/datamechanics/spark:platform-3.1.1-hadoop-3.2.0-java-11-scala-2.12-python-3.8-dm12
+FROM openjdk:8
 
-ARG VERSION
-
-ENV SCALA_VERSION=2.12
+ENV SCALA_VERSION=2.12.12
 ENV PYTHON_VERSION=3.8
-ENV GDAL_VERSION=3.1.2
+ENV GDAL_VERSION=3.8.3
 
 USER root
 
 # Install GDAL using Conda
 RUN wget https://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh
-RUN sh Miniconda-latest-Linux-x86_64.sh -b -p /usr/local/miniconda
+RUN bash Miniconda-latest-Linux-x86_64.sh -b -p /usr/local/miniconda
 
 ENV PATH=/usr/local/miniconda/bin:$PATH
 
-RUN conda config --add channels conda-forge
+RUN conda config --add channels conda-forge && conda config --set ssl_verify false
 RUN /usr/local/miniconda/bin/conda install python=${PYTHON_VERSION} -y
 RUN pip install tqdm six
 RUN /usr/local/miniconda/bin/conda install -c anaconda hdf5 -y
 RUN /usr/local/miniconda/bin/conda install -c conda-forge libnetcdf gdal=${GDAL_VERSION} -y
 
 ENV LD_LIBRARY_PATH=/usr/local/miniconda/lib/:/usr/local/lib:/usr/lib/hadoop/lib/native:/usr/lib/hadoop-lzo/lib/native:/docker/usr/lib/hadoop/lib/native:/docker/usr/lib/hadoop-lzo/lib/native:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
-
-# Copy Tree cover loss FAT JAR into docker containter
-COPY target/scala-${SCALA_VERSION}/treecoverloss-assembly-${VERSION}.jar treecoverloss-assembly.jar
-# Overwrite entrypoint
-COPY entrypoint.sh /opt/entrypoint.sh
-RUN chmod 755 /opt/entrypoint.sh
-
-# Change back to inital user
-USER 185
+ENV PROJ_LIB=/usr/local/miniconda/share/proj