ARG jre_image=eclipse-temurin:11.0.20_8-jre
FROM ${jre_image} as build
# Make sure CA are up to date and unzip for gradle
RUN --mount=type=tmpfs,target=/var/lib/apt \
    apt-get update && apt-get install -y --no-install-recommends ca-certificates unzip
# install Gradle
RUN curl -L <https://services.gradle.org/distributions/gradle-8.4-bin.zip> -o /tmp/gradle-8.4-bin.zip \
 && unzip /tmp/gradle-8.4-bin.zip -d /usr/local/
ENV PATH=${PATH}:/usr/local/gradle-8.4/bin
# working (correct?) gradle build file
COPY build.gradle .
# create a shadowJar in build/libs/
RUN --mount=type=cache,target=/root/.gradle \
    gradle shadowJar

FROM ${jre_image}

LABEL maintainer="Rodolphe CHAIGNEAU <rodolphe.chaigneau@gmail.com>"

ARG WIREMOCK_VERSION=3.2.0
ENV WIREMOCK_VERSION $WIREMOCK_VERSION
ENV GOSU_VERSION 1.14

WORKDIR /home/wiremock

# grab gosu for easy step-down from root
RUN --mount=type=tmpfs,target=/var/lib/apt \
    set -eux; \
	savedAptMark="$(apt-mark showmanual)"; \
	apt-get update; \
	apt-get install -y --no-install-recommends ca-certificates wget unzip; \
	if ! command -v gpg; then \
		apt-get install -y --no-install-recommends gnupg2 dirmngr; \
	elif gpg --version | grep -q '^gpg (GnuPG) 1\.'; then \
		apt-get install -y --no-install-recommends gnupg-curl; \
	fi; \
	\
	dpkgArch="$(dpkg --print-architecture | awk -F- '{ print $NF }')"; \
	wget -O /usr/local/bin/gosu "<https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch>"; \
	wget -O /usr/local/bin/gosu.asc "<https://github.com/tianon/gosu/releases/download/$GOSU_VERSION/gosu-$dpkgArch.asc>"; \
	\
	export GNUPGHOME="$(mktemp -d)"; \
	gpg --batch --keyserver <hkps://keys.openpgp.org> --recv-keys B42F6819007F00F88E364FD4036A9C25BF357DD4; \
	gpg --batch --verify /usr/local/bin/gosu.asc /usr/local/bin/gosu; \
	command -v gpgconf && gpgconf --kill all || :; \
	rm -rf "$GNUPGHOME" /usr/local/bin/gosu.asc; \
	\
	apt-mark auto '.*' > /dev/null; \
	[ -z "$savedAptMark" ] || apt-mark manual $savedAptMark; \
	apt-get purge -y --auto-remove -o APT::AutoRemove::RecommendsImportant=false; \
	\
	chmod +x /usr/local/bin/gosu; \
	gosu --version; \
	gosu nobody true

# grab wiremock standalone jar
RUN mkdir -p /var/wiremock/lib/ \
  && curl <https://repo1.maven.org/maven2/org/wiremock/wiremock-standalone/$WIREMOCK_VERSION/wiremock-standalone-$WIREMOCK_VERSION.jar> \
    -o /var/wiremock/lib/wiremock-standalone.jar

# Sorting out dependencies is a pain.
COPY --from=build /build/libs/* /var/wiremock/lib/

# Init WireMock files structure
RUN mkdir -p mappings __files grpc /var/wiremock/extensions

COPY docker-entrypoint.sh /

EXPOSE 8080 8443

ENTRYPOINT ["/docker-entrypoint.sh"]

faye@mabinogion standalone % grpcurl -vv -d '{"name": "Tom" }' -plaintext -proto ExampleServices.proto localhost:8000 com.example.grpc.GreetingService/greeting

Resolved method descriptor:
rpc greeting ( .com.example.grpc.HelloRequest ) returns ( .com.example.grpc.HelloResponse );

Request metadata to send:
(empty)

Response headers received:
content-type: application/grpc
matched-stub-id: 75b8622b-d5f6-472d-b363-08f76b4e93d2

Response trailers received:
(empty)
Sent 1 request and received 0 responses
ERROR:
  Code: ResourceExhausted
  Message: grpc: received message larger than max (577204837 vs. 4194304)

buildscript {
	repositories {
		mavenCentral()
		gradlePluginPortal()
	}
	dependencies {
		classpath "gradle.plugin.com.github.johnrengelman:shadow:7.1.2"
	}
}

plugins {
	id 'com.github.johnrengelman.shadow' version '7.1.2'
	id 'java'
}

repositories {
	mavenCentral()
}

dependencies {
	implementation "org.wiremock:wiremock-grpc-extension:0.2.0"
}

// gradle shadowJar to create build/libs/...jar

faye@mabinogion standalone % ls -lR wiremock-data 
total 0
drwxr-xr-x  2 faye  staff   64 Nov  6 22:34 __files
drwxr-xr-x  4 faye  staff  128 Nov  6 22:31 grpc
drwxr-xr-x  3 faye  staff   96 Nov  6 23:47 mappings

wiremock-data/__files:
total 0

wiremock-data/grpc:
total 8
-rw-r--r--  1 faye  staff  717 Nov  6 22:31 services.dsc

wiremock-data/mappings:
total 8
-rw-r--r--  1 faye  staff  365 Nov  6 23:47 greeting.json