Fix docker image for perf testing:
- Disable caching for second stage docker file creation
  for correct Tarantool and bench-run version checkout.
- bench-run repository creation moved from dockerfile
  of the first stage to the second.
 
Close #4870
---
 
Github: https://github.com/tarantool/bench-run/tree/opiskunov/gh-4870-refactor-docker-perf
Issue: https://github.com/tarantool/tarantool/issues/4870
 
 dockerfiles/ubuntu_benchs | 3 ---
 dockerfiles/ubuntu_tnt    | 3 +++
 targets.mk                | 2 +-
 3 files changed, 4 insertions(+), 4 deletions(-)
 
diff --git a/dockerfiles/ubuntu_benchs b/dockerfiles/ubuntu_benchs
index fd9acb4..f5389f4 100644
--- a/dockerfiles/ubuntu_benchs
+++ b/dockerfiles/ubuntu_benchs
@@ -70,6 +70,3 @@ WORKDIR /opt/linkbench
 RUN luarocks install \
     https://raw.githubusercontent.com/tarantool/gperftools/master/rockspecs/gperftools-scm-1.rockspec \
     --local >build.log 2>&1 || ( cat build.log && false )
-
-# benchmarks runners
-RUN git clone https://github.com/tarantool/bench-run.git /opt/bench-run
diff --git a/dockerfiles/ubuntu_tnt b/dockerfiles/ubuntu_tnt
index 361e9d6..1704508 100644
--- a/dockerfiles/ubuntu_tnt
+++ b/dockerfiles/ubuntu_tnt
@@ -8,6 +8,9 @@ RUN ( cmake . -DENABLE_DIST=ON -DCMAKE_BUILD_TYPE=RelWithDebInfo >build.log 2>&1
     && make -j >>build.log 2>&1 && make install >>build.log 2>&1 ) || \
     ( cat build.log && false )
 
+# benchmarks runners
+RUN git clone https://github.com/tarantool/bench-run.git /opt/bench-run
+
 # cbench
 RUN git clone https://github.com/tarantool/cbench.git /opt/cbench
 WORKDIR /opt/cbench
diff --git a/targets.mk b/targets.mk
index 6cf36b6..581b722 100644
--- a/targets.mk
+++ b/targets.mk
@@ -21,7 +21,7 @@ prepare:
        docker push ${IMAGE_PERF}
        # build Tarantool and benchmarks with depends on Tarantool sources
        ${DOCKERFILE_BUILD} --build-arg image_from=${IMAGE_PERF} \
-               -t ${IMAGE_PERF_BUILT} -f bench-run/dockerfiles/ubuntu_tnt .
+               -t ${IMAGE_PERF_BUILT} --no-cache -f bench-run/dockerfiles/ubuntu_tnt .
        docker push ${IMAGE_PERF_BUILT}
 
 # #####################################################
--
1.8.3.1