Reduce size of Docker image (#619)

Changelog.md

@@ -4,6 +4,8 @@
 
 - **Fixed** Docker image containing more files than necessary.
   ([#613](https://github.com/aws/graph-explorer/pull/613))
+- **Improved** Docker image size, reducing it by 196 MB
+  ([#619](https://github.com/aws/graph-explorer/pull/619))
 - **Improved** query generation by removing empty lines
   ([#608](https://github.com/aws/graph-explorer/pull/608))
 - **Fixed** security vulnerabilities in the Docker image from dev dependencies

Dockerfile

@@ -1,11 +1,37 @@
 # syntax=docker/dockerfile:1
 FROM amazonlinux:2023
 ARG NEPTUNE_NOTEBOOK
+
 ENV NVM_DIR=/root/.nvm
 ENV NODE_VERSION=v20.17.0
+ENV NEPTUNE_NOTEBOOK=$NEPTUNE_NOTEBOOK
+ENV HOME=/graph-explorer
+
+# Conditionally set the following environment values using +/- variable expansion
+# https://docs.docker.com/reference/dockerfile/#environment-replacement
+# 
+# If NEPTUNE_NOTEBOOK value is set then
+#   - GRAPH_EXP_ENV_ROOT_FOLDER = /proxy/9250/explorer
+#   - PROXY_SERVER_HTTP_PORT    = 9250
+#   - LOG_STYLE                 = cloudwatch
+# Else the values are the defaults
+#   - GRAPH_EXP_ENV_ROOT_FOLDER = /explorer
+#   - PROXY_SERVER_HTTP_PORT    = 80
+#   - LOG_STYLE                 = default
+
+ENV GRAPH_EXP_ENV_ROOT_FOLDER=${NEPTUNE_NOTEBOOK:+/proxy/9250/explorer}
+ENV GRAPH_EXP_ENV_ROOT_FOLDER=${GRAPH_EXP_ENV_ROOT_FOLDER:-/explorer}
+
+ENV PROXY_SERVER_HTTP_PORT=${NEPTUNE_NOTEBOOK:+9250}
+ENV PROXY_SERVER_HTTP_PORT=${PROXY_SERVER_HTTP_PORT:-80}
+
+ENV LOG_STYLE=${NEPTUNE_NOTEBOOK:+cloudwatch}
+ENV LOG_STYLE=${LOG_STYLE:-default}
+
 WORKDIR /
 COPY . /graph-explorer/
 WORKDIR /graph-explorer
+
 # Keeping all the RUN commands on a single line reduces the number of layers and,
 # as a result, significantly reduces the final image size.
 RUN yum update -y && \
@@ -18,26 +44,19 @@ RUN yum update -y && \
     nvm use $NODE_VERSION && \
     corepack enable && \
     pnpm install && \
+    pnpm build && pnpm clean:dep && pnpm install --prod --ignore-scripts && \
     yum clean all && \
-    yum remove -y tar gzip findutils && \
+    yum remove -y tar gzip findutils git && \
     rm -rf /var/cache/yum && \
-    chmod a+x ./process-environment.sh
-# Set node/npm in path so we can reuse it in the next run layer
+    rm -rf $HOME/.local && \
+    chmod a+x ./process-environment.sh && \
+    chmod a+x ./docker-entrypoint.sh
+
+# Set node/npm in path so it can be used by the app when the container is run
 ENV NODE_PATH=$NVM_DIR/versions/node/$NODE_VERSION/lib/node_modules
 ENV PATH=$NVM_DIR/versions/node/$NODE_VERSION/bin:$PATH
-WORKDIR /graph-explorer/
-ENV HOME=/graph-explorer
-ENV NEPTUNE_NOTEBOOK=$NEPTUNE_NOTEBOOK
-RUN if [ -n "$NEPTUNE_NOTEBOOK" ] && [ "$NEPTUNE_NOTEBOOK" = "true" ]; then \
-      echo "GRAPH_EXP_ENV_ROOT_FOLDER=/proxy/9250/explorer" >> ./packages/graph-explorer/.env; \
-      echo "PROXY_SERVER_HTTP_PORT=9250" >> ./packages/graph-explorer/.env; \
-      echo "LOG_STYLE=cloudwatch" >> ./packages/graph-explorer/.env; \
-    else \
-      echo "GRAPH_EXP_ENV_ROOT_FOLDER=/explorer" >> ./packages/graph-explorer/.env; \
-    fi && \
-    pnpm build && pnpm clean:dep && pnpm install --prod --ignore-scripts
+
 EXPOSE 443
 EXPOSE 80
 EXPOSE 9250
-RUN chmod a+x ./docker-entrypoint.sh
 ENTRYPOINT ["./docker-entrypoint.sh"]