Dockerfile for portal-hive development (#1759)

improves build time for a local dev container for a portal-hive test suite

fluffy/README.md

@@ -157,6 +157,21 @@ The code follows the
 [Status Nim Style Guide](https://status-im.github.io/nim-style-guide/).
 
 
+## Build local dev container for portal-hive
+
+To develop code against portal-hive tests you will need:
+
+1) Clone and build portal-hive ([#1](https://github.com/ethereum/portal-hive))
+
+2) Modify `Dockerfile` for fluffy in `portal-hive/clients/fluffy/Dockerfile` ([#2](https://github.com/ethereum/portal-hive/blob/main/docs/overview.md#running-a-client-built-from-source))
+
+3) Build local dev container using following command: ```docker build --tag fluffy-dev --file ./fluffy/tools/docker/Dockerfile.portalhive .``` You may need to change fluffy-dev to the tag you using in portal-hive client dockerfile.
+
+4) Run the tests
+
+Also keep in mind that `./vendors` is dockerignored and cached. If you have to make local changes to one of the dependencies in that directory you'll have to remove `vendors/` from `./fluffy/tools/docker/Dockerfile.portalhive.dockerignore`.
+
+
 ## Metrics and their visualisation
 
 To enable metrics run Fluffy with the `--metrics` flag:

fluffy/tools/docker/Dockerfile.portalhive

@@ -0,0 +1,26 @@
+FROM debian:stable-slim as build
+
+ENV DEBIAN_FRONTEND=noninteractive TZ="Etc/UTC"
+ENV NPROC=2
+
+RUN apt update \
+  && apt install make bash build-essential git -y \
+  && apt-get clean \
+  && rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
+
+COPY ../../ /fluffy
+
+WORKDIR /fluffy
+
+RUN --mount=type=cache,target=/fluffy/vendor \
+    make deps -j${NPROC}
+
+RUN --mount=type=cache,target=/fluffy/vendor <<EOF
+  set -e
+  make fluffy -j${NPROC}
+  cp /fluffy/build/fluffy /usr/local/bin/fluffy
+EOF
+
+FROM debian:stable-slim as app
+
+COPY --from=build /usr/local/bin/fluffy /usr/local/bin/fluffy

fluffy/tools/docker/Dockerfile.portalhive.dockerignore

@@ -0,0 +1,3 @@
+vendor/
+build/
+.git/