Convert to NetCDF

Resolves #12 (closed)

.gitlab/Dockerfile

+####
+# Used in GitLab pipelines.
+#
+# Requires:
+#   - Java 11
+#   - Python 3.9
+#   - Poetry
+#   - NetCDF
+####
+
 ARG FROM_IMAGE=usgs/java:11-jdk
 
 FROM ${FROM_IMAGE}
@@ -8,21 +18,23 @@ USER root
 
 ENV PYTHON_URL="https://www.python.org/ftp/python/3.9.2/Python-3.9.2.tgz"
 
-RUN yum install -y \
-    openssl-devel \
-    bzip2-devel \
-    libffi-devel \
-    zlib-devel  \
-    groff \
-    && yum groupinstall -y development \
+RUN yum install -y epel-release dnf-plugins-core \
+    && yum config-manager --set-enabled powertools \
+    && yum install -y \
+      gcc \
+      make \
+      netcdf \
+      openssl-devel \
+      bzip2-devel \
+      libffi-devel \
+      zlib-devel  \
     && yum clean all
 
 WORKDIR /python
 
 RUN curl -sS  "${PYTHON_URL}" | tar xvz --strip-components=1 \
-    && ./configure \
-    && make \
-    && make install \
+    && ./configure --enable-optimizations --silent \
+    && make install --silent \
     && curl -sSL https://raw.githubusercontent.com/python-poetry/poetry/master/get-poetry.py | python3
 
 WORKDIR /