fix(docker): use a standard entrypoint directory

docker/Dockerfile

@@ -70,6 +70,9 @@ ENV CARGO_HOME="${APP_HOME}/.cargo/"
 # TODO: users should be able to set this to a different value
 WORKDIR /opt/zebrad/
 
+# Copy the entrypoint script to be used on both images
+COPY ./docker/entrypoint.sh /etc/zebrad/entrypoint.sh
+
 # In this stage we build tests (without running then)
 #
 # We also download needed dependencies for tests to work, from other images.
@@ -121,11 +124,9 @@ cp ${APP_HOME}/target/release/zebrad /usr/local/bin && \
 cp ${APP_HOME}/target/release/zebra-checkpoints /usr/local/bin
 
 # Copy the lightwalletd binary and source files to be able to run tests
-# COPY --from=electriccoinco/lightwalletd:latest /usr/local/bin/lightwalletd /usr/local/bin/
+COPY --from=electriccoinco/lightwalletd:latest /usr/local/bin/lightwalletd /usr/local/bin/
 COPY ./ ./
 
-COPY ./docker/entrypoint.sh /etc/zebrad/entrypoint.sh
-
 # Entrypoint environment variables
 ENV ENTRYPOINT_FEATURES=${ENTRYPOINT_FEATURES}
 # We repeat the ARGs here, so they are available in the entrypoint.sh script for $RUN_ALL_EXPERIMENTAL_TESTS
@@ -166,8 +167,6 @@ RUN --mount=type=bind,source=tower-batch-control,target=tower-batch-control \
 cargo build --locked --release --features "${FEATURES}" --package zebrad --bin zebrad && \
 cp ${APP_HOME}/target/release/zebrad /usr/local/bin
 
-COPY ./docker/entrypoint.sh ./
-
 # This stage is only used when deploying nodes or when only the resulting zebrad binary is needed
 #
 # To save space, this step starts from scratch using debian, and only adds the resulting
@@ -220,7 +219,7 @@ RUN mkdir -p ${ZEBRA_CONF_DIR} && chown ${UID}:${UID} ${ZEBRA_CONF_DIR} \
     && chown ${UID}:${UID} ${APP_HOME}
 
 COPY --from=release ${APP_HOME}/target/release/zebrad /usr/local/bin
-COPY --from=release ${APP_HOME}/entrypoint.sh /etc/zebrad
+COPY --from=release /etc/zebrad/entrypoint.sh /etc/zebrad
 
 # Expose configured ports
 EXPOSE 8233 18233