Add support for grafana-pyroscope to besu (#8510)

* add support for grafana-pyroscope to besu

Signed-off-by: Joshua Fernandes <joshua.fernandes@consensys.net>

* changelog

Signed-off-by: Sally MacFarlane <macfarla.github@gmail.com>

---------

Signed-off-by: Joshua Fernandes <joshua.fernandes@consensys.net>
Signed-off-by: Sally MacFarlane <macfarla.github@gmail.com>
Co-authored-by: Sally MacFarlane <macfarla.github@gmail.com>

Author: joshuafernandes

CHANGELOG.md

@@ -10,6 +10,7 @@
 - Add `--profile=PERFORMANCE_RPC` for high spec RPC nodes: increases rocksdb cache and caches last 2048 blocks [#8560](https://github.com/hyperledger/besu/pull/8560)
 - Refine gas estimation algorithm for `eth_estimateGas` and `eth_createAccessList` [#8478](https://github.com/hyperledger/besu/pull/8478) including a new option to specify `--estimate-gas-tolerance-ratio`
 - Increase default target-gas-limit to 60M for Holesky and Sepolia [#8594](https://github.com/hyperledger/besu/pull/8594)
+- Add support for [Pyroscope](https://grafana.com/docs/pyroscope/latest/) to Docker image [#8510](https://github.com/hyperledger/besu/pull/8510)
 
 #### Dependencies
 - update jc-kzg-4844 dependency from 2.0.0 to 2.1.1

docker/Dockerfile

@@ -22,6 +22,8 @@ ARG BESU_USER=besu
 USER ${BESU_USER}
 WORKDIR /opt/besu
 
+ADD --chown=besu:besu https://github.com/grafana/pyroscope-java/releases/download/v0.18.1/pyroscope.jar /opt/pyroscope/lib/pyroscope.jar
+
 COPY --chown=besu:besu besu /opt/besu/
 
 # Expose services ports
@@ -40,6 +42,16 @@ ENV BESU_GRAPHQL_HTTP_HOST 0.0.0.0
 ENV BESU_PID_PATH "/tmp/pid"
 
 ENV OTEL_RESOURCE_ATTRIBUTES="service.name=besu,service.version=$VERSION"
+# https://grafana.com/docs/pyroscope/latest/configure-client/language-sdks/java/
+ENV PYROSCOPE_APPLICATION_NAME="besu-$VERSION"
+ENV PYROSCOPE_SERVER_ADDRESS=http://pyroscope:4040
+ENV PYROSCOPE_FORMAT=jfr
+ENV PYROSCOPE_PROFILING_INTERVAL=10ms
+ENV PYROSCOPE_PROFILER_EVENT=itimer
+ENV PYROSCOPE_PROFILER_LOCK=10ms
+ENV PYROSCOPE_PROFILER_ALLOC=512k
+ENV PYROSCOPE_UPLOAD_INTERVAL=15s
+ENV PYROSCOPE_LOG_LEVEL=debug
 
 ENV OLDPATH="${PATH}"
 ENV PATH="/opt/besu/bin:${OLDPATH}"