Improve C# support, set GRPC_CSHARP_VERSION=1.28.1

Dockerfile

@@ -2,43 +2,72 @@ ARG ALPINE_VERSION=3.10
 ARG GO_VERSION=1.13.4
 ARG GRPC_GATEWAY_VERSION=1.12.2
 ARG GRPC_JAVA_VERSION=1.26.0
+ARG GRPC_CSHARP_VERSION=1.28.1
 ARG GRPC_VERSION=1.26.0
 ARG PROTOC_GEN_GO_VERSION=1.3.2
 ARG PROTOC_GEN_GOGO_VERSION=ba06b47c162d49f2af050fb4c75bcbc86a159d5c
 ARG PROTOC_GEN_LINT_VERSION=0.2.1
 ARG UPX_VERSION=3.96
 
 
-FROM alpine:${ALPINE_VERSION} as protoc_builder
-RUN apk add --no-cache build-base curl automake autoconf libtool git zlib-dev
-
-RUN mkdir -p /out
+FROM alpine:${ALPINE_VERSION} as protoc_base
+RUN apk add --no-cache build-base curl cmake autoconf libtool git zlib-dev linux-headers && \
+    mkdir -p /out
 
 
+FROM protoc_base as protoc_builder
 ARG GRPC_VERSION
-RUN git clone --recursive --depth=1 -b v${GRPC_VERSION} https://github.com/grpc/grpc.git /grpc && \
+RUN apk add --no-cache automake && \
+    git clone --recursive --depth=1 -b v${GRPC_VERSION} https://github.com/grpc/grpc.git /grpc && \
     ln -s /grpc/third_party/protobuf /protobuf && \
     cd /protobuf && \
     ./autogen.sh && \
     ./configure --prefix=/usr --enable-static=no && \
-    make && \
-    make check && \
-    make install && \
-    make install DESTDIR=/out && \
+    make -j4 && \
+    make -j4 check && \
+    make -j4 install && \
+    make -j4 install DESTDIR=/out && \
     cd /grpc && \
-    make install-plugins prefix=/out/usr
+    make -j4 install-plugins prefix=/out/usr
 
 ARG GRPC_JAVA_VERSION
 RUN mkdir -p /grpc-java && \
     curl -sSL https://api.github.com/repos/grpc/grpc-java/tarball/v${GRPC_JAVA_VERSION} | tar xz --strip 1 -C /grpc-java && \
     cd /grpc-java && \
     g++ \
         -I. -I/protobuf/src \
+        -I/out/usr/include \
         compiler/src/java_plugin/cpp/*.cpp \
-        -L/protobuf/src/.libs \
+        -L/out/usr/lib \
+        -L/out/usr/lib64 \
         -lprotoc -lprotobuf -lpthread --std=c++0x -s \
         -o protoc-gen-grpc-java && \
-    install -Ds protoc-gen-grpc-java /out/usr/bin/protoc-gen-grpc-java
+    install -Ds protoc-gen-grpc-java /out/usr/bin/protoc-gen-grpc-java && \
+    rm -Rf /grpc-java && \
+    rm -Rf /grpc
+
+
+FROM protoc_base AS protoc_cs_builder
+ARG GRPC_CSHARP_VERSION
+RUN git clone --recursive --depth=1 -b v${GRPC_CSHARP_VERSION} https://github.com/grpc/grpc.git /grpc && \
+    ln -s /grpc/third_party/protobuf /protobuf && \
+    mkdir -p /grpc/cmake/build && \
+    cd /grpc/cmake/build && \
+    cmake \
+        -DCMAKE_BUILD_TYPE=Release \
+        -DgRPC_BUILD_TESTS=OFF \
+        -gRPC_BUILD_GRPC_CPP_PLUGIN=OFF \
+        -gRPC_BUILD_GRPC_NODE_PLUGIN=OFF \
+        -gRPC_BUILD_GRPC_OBJECTIVE_C_PLUGIN=OFF \
+        -gRPC_BUILD_GRPC_PHP_PLUGIN=OFF \
+        -gRPC_BUILD_GRPC_PYTHON_PLUGIN=OFF \
+        -gRPC_BUILD_GRPC_RUBY_PLUGIN=OFF \
+        -DgRPC_INSTALL=ON \
+        -DCMAKE_INSTALL_PREFIX=/out/usr \
+        ../.. && \
+    make -j4 install && \
+    rm -Rf /grpc
+
 
 FROM golang:${GO_VERSION}-alpine${ALPINE_VERSION} as go_builder
 RUN apk add --no-cache build-base curl git
@@ -84,21 +113,27 @@ RUN mkdir -p ${GOPATH}/src/github.com/grpc-ecosystem/grpc-gateway && \
     install -D $(find ./third_party/googleapis/google/rpc -name '*.proto') -t /out/usr/include/google/rpc
 
 
-
 FROM alpine:${ALPINE_VERSION} as packer
 RUN apk add --no-cache curl
 
 ARG UPX_VERSION
 RUN mkdir -p /upx && curl -sSL https://github.com/upx/upx/releases/download/v${UPX_VERSION}/upx-${UPX_VERSION}-amd64_linux.tar.xz | tar xJ --strip 1 -C /upx && \
     install -D /upx/upx /usr/local/bin/upx
 
+# Use all output including headers and protoc from protoc_builder
 COPY --from=protoc_builder /out/ /out/
+# Use protoc and plugin from protoc_cs_builder
+COPY --from=protoc_cs_builder /out/usr/bin/protoc-* /out/usr/bin/protoc-csharp
+COPY --from=protoc_cs_builder /out/usr/bin/grpc_csharp_plugin /out/usr/bin/grpc_csharp_plugin
+# Integrate all output from go_builder
 COPY --from=go_builder /out/ /out/
+
 RUN upx --lzma \
         /out/usr/bin/grpc_* \
         /out/usr/bin/protoc-gen-*
 RUN find /out -name "*.a" -delete -or -name "*.la" -delete
 
+
 FROM alpine:${ALPINE_VERSION}
 LABEL maintainer="The Jaeger Authors"
 COPY --from=packer /out/ /

protoc-wrapper

@@ -1,5 +1,6 @@
 #!/usr/bin/env bash
 c_out=""
+csharp_out=""
 includes=()
 outs=()
 args=()
@@ -10,6 +11,14 @@ for arg in $@; do
             c_out=${arg}
             shift
             ;;
+        --csharp_out=*)
+            csharp_out=${arg}
+            shift
+            ;;
+        --grpc-csharp_out=*)
+            csharp_out=${arg}
+            shift
+            ;;
         --*_out=*)
             outs+=(${arg})
             shift
@@ -31,13 +40,14 @@ fi
 
 protoc_cmd="protoc ${includes[@]} ${outs[@]} ${args[@]}"
 protoc_c_cmd="protoc-c ${includes[@]} ${c_out} ${args[@]}"
+protoc_csharp_cmd="protoc-csharp ${includes[@]} ${csharp_out} ${args[@]}"
 
 if [ ${c_out} ]; then
-    if [ ${#outs[@]} -eq 0 ]; then
-        # only --c_out specified, no need to call `protoc`
-        exec ${protoc_c_cmd}
-    fi
     ${protoc_c_cmd} || exit 1
-    exec ${protoc_cmd}
 fi
-exec ${protoc_cmd}
+if [ ${csharp_out} ]; then
+    ${protoc_csharp_cmd} || exit 1
+fi
+if [ ${#outs[@]} -gt 0 ]; then
+    exec ${protoc_cmd}
+fi