Enable remote cache if applicable (#423)

* Update configuration to support CCACHE_REMOTE_STORAGE

* Remove redundant configuration

* Fix 'ccache' installation issue

* Use remote cache if applicable

* fix trailing whitespaces

Author: mc-nv

CMakeLists.txt

@@ -40,6 +40,8 @@ if(TRITON_FIL_DOCKER_BUILD)
     OUTPUT fil/libtriton_fil.so $<$<BOOL:${TRITON_ENABLE_GPU}>:fil/libcuml++.so>
     COMMAND DOCKER_BUILDKIT=1 docker build -t
       triton_fil_builder
+      $<$<BOOL:$ENV{CCACHE_REMOTE_STORAGE}>:--build-arg>
+      $<$<BOOL:$ENV{CCACHE_REMOTE_STORAGE}>:CCACHE_REMOTE_STORAGE=$ENV{CCACHE_REMOTE_STORAGE}>
       --build-arg BUILD_TYPE=${CMAKE_BUILD_TYPE}
       --build-arg TRITON_VERSION=${TRITON_BUILD_CONTAINER_VERSION}
       --build-arg BASE_IMAGE=${TRITON_BUILD_CONTAINER}

ops/Dockerfile

@@ -181,8 +181,15 @@ RUN source /conda/dev/bin/activate \
 
 ENV CCACHE_DIR=/ccache
 
-RUN --mount=type=cache,target=/ccache/ source /conda/dev/bin/activate && ninja install
-
+ARG CCACHE_REMOTE_STORAGE
+
+RUN --mount=type=cache,target=/ccache/ source /conda/dev/bin/activate && \
+    if [ -n "${CCACHE_REMOTE_STORAGE}" ] && which ccache ; then \
+      ccache --set-config=remote_only=true ; \
+      ccache --set-config=remote_storage=${CCACHE_REMOTE_STORAGE} ; \
+      ccache -p ; \
+    fi && \
+    ninja install
 
 # Stage for generating testing image
 FROM ${SERVER_IMAGE} as test-host-0