fix: removed ln from entrypoint copy

Dockerfile

@@ -2,14 +2,14 @@ ARG BASE_IMAGE="nginx"
 
 FROM ${BASE_IMAGE}
 
-# Install groovy
-ENV GROOVY_HOME=/opt/groovy
-ENV GROOVY_VERSION=4.0.9
-
 # Install ping and ip
 RUN apt update && \
-    apt install iproute2 && \
+    apt install -y iproute2 iputils-ping
-    apt install iputils-ping
 
+# Copy entrypoint
+COPY docker-entrypoint.sh /usr/local/bin/docker-entrypoint.sh
+RUN chmod +x /usr/local/bin/docker-entrypoint.sh
+
+# Execute entrypoint
 ENTRYPOINT [ "docker-entrypoint.sh" ]
 CMD [ "app" ]