FROM docker.elastic.co/beats/filebeat:8.2.0 # Switch to root user USER root COPY entrypoint.sh /usr/local/bin/entrypoint.sh RUN chmod +x /usr/local/bin/entrypoint.sh # Set the entry point to your custom script using tini ENTRYPOINT ["/usr/bin/tini", "--", "/usr/local/bin/entrypoint.sh"] # Set the CMD to pass the environment argument to Filebeat CMD ["-environment", "container"]