ci: add replace clang8 with clang11

Update Clang 8 testing with most recent version of
Clang: 11. Clang 8 still in the image.

Closes #5386

.gitlab-ci.yml

@@ -78,7 +78,7 @@ before_script:
   tags:
     - docker_test
 
-.docker_test_clang8_template: &docker_test_clang8_definition
+.docker_test_clang11_template: &docker_test_clang8_definition
   <<: *artifacts_files_definition
   image: "${CI_REGISTRY}/${CI_PROJECT_PATH}/testing/debian-buster:latest"
   stage: test
@@ -199,16 +199,16 @@ release_lto:
   script:
     - ${GITLAB_MAKE} test_debian_no_deps
 
-release_lto_clang8:
+release_lto_clang11:
   <<: *docker_test_clang8_definition
   variables:
-    CC: clang-8
-    CXX: clang++-8
+    CC: clang-11
+    CXX: clang++-11
     CMAKE_EXTRA_PARAMS: -DENABLE_LTO=ON
   script:
     - ${GITLAB_MAKE} test_debian_no_deps
 
-release_asan_clang8:
+release_asan_clang11:
   <<: *docker_test_clang8_definition
   script:
     - ${GITLAB_MAKE} test_asan_debian_no_deps

.gitlab.mk

@@ -40,7 +40,7 @@ export DEBIAN_STRETCH_DOCKERFILE
 define DEBIAN_BUSTER_DOCKERFILE
 FROM packpack/packpack:debian-buster
 COPY .travis.mk .
-RUN make APT_EXTRA_FLAGS="--allow-releaseinfo-change-version --allow-releaseinfo-change-suite" -f .travis.mk deps_buster_clang_8
+RUN make APT_EXTRA_FLAGS="--allow-releaseinfo-change-version --allow-releaseinfo-change-suite" -f .travis.mk deps_buster_clang_8 deps_buster_clang_11
 endef
 export DEBIAN_BUSTER_DOCKERFILE
 

.travis.mk

@@ -28,7 +28,7 @@ test: test_$(TRAVIS_OS_NAME)
 test_linux: docker_test_debian
 coverage: docker_coverage_debian
 lto: docker_test_debian
-lto_clang8: docker_test_debian_clang8
+lto_clang11: docker_test_debian_clang11
 asan: docker_test_asan_debian
 
 docker_%:
@@ -55,7 +55,7 @@ docker_%:
 
 # Depends
 
-# When dependencies in 'deps_debian' or 'deps_buster_clang_8' goal
+# When dependencies in 'deps_debian' or 'deps_buster_clang_11' goal
 # are changed, push a new docker image into GitLab Registry using
 # the following command:
 #
@@ -83,6 +83,13 @@ deps_buster_clang_8: deps_debian
 	apt-get update
 	apt-get install -y clang-8 llvm-8-dev
 
+deps_buster_clang_11: deps_debian
+	echo "deb http://apt.llvm.org/buster/ llvm-toolchain-buster-11 main" > /etc/apt/sources.list.d/clang_11.list
+	echo "deb-src http://apt.llvm.org/buster/ llvm-toolchain-buster-11 main" >> /etc/apt/sources.list.d/clang_11.list
+	wget -O - https://apt.llvm.org/llvm-snapshot.gpg.key | apt-key add -
+	apt-get update
+	apt-get install -y clang-11 llvm-11-dev
+
 deps_debian_jepsen: $(BIN_DIR)/clojure $(BIN_DIR)/lein $(BIN_DIR)/terraform
 	apt-get update ${APT_EXTRA_FLAGS} && apt-get install -y -f \
 		openjdk-8-jre openjdk-8-jre-headless libjna-java gnuplot graphviz \
@@ -115,7 +122,7 @@ test_debian_no_deps: build_debian
 
 test_debian: deps_debian test_debian_no_deps
 
-test_debian_clang8: deps_debian deps_buster_clang_8 test_debian_no_deps
+test_debian_clang11: deps_debian deps_buster_clang_11 test_debian_no_deps
 
 # Debug with coverage
 
@@ -143,7 +150,7 @@ coverage_debian: deps_debian test_coverage_debian_no_deps
 # ASAN
 
 build_asan_debian:
-	CC=clang-8 CXX=clang++-8 cmake . -DCMAKE_BUILD_TYPE=RelWithDebInfo \
+	CC=clang-11 CXX=clang++-11 cmake . -DCMAKE_BUILD_TYPE=RelWithDebInfo \
 		-DENABLE_WERROR=ON -DENABLE_ASAN=ON -DENABLE_UB_SANITIZER=ON \
 		${CMAKE_EXTRA_PARAMS}
 	make -j
@@ -159,7 +166,7 @@ test_asan_debian_no_deps: build_asan_debian
 		ASAN_OPTIONS=heap_profile=0:unmap_shadow_on_exit=1:detect_invalid_pointer_pairs=1:symbolize=1:detect_leaks=1:dump_instruction_bytes=1:print_suppressions=0 \
 		./test-run.py --force $(TEST_RUN_EXTRA_PARAMS)
 
-test_asan_debian: deps_debian deps_buster_clang_8 test_asan_debian_no_deps
+test_asan_debian: deps_debian deps_buster_clang_11 test_asan_debian_no_deps
 
 # Static build