ci: disable DEBUG in the build script

.github/workflows/build_and_push_docker_images.yaml

@@ -73,7 +73,7 @@ permissions:
 
 jobs:
   docker:
-    runs-on: ${{ endsWith(github.repository, '/emqx') && 'ubuntu-22.04' || fromJSON('["self-hosted","ephemeral","linux","x64"]') }}
+    runs-on: ${{ github.repository_owner == 'emqx' && fromJSON('["self-hosted","ephemeral-xl","linux","x64"]') || 'ubuntu-22.04' }}
 
     strategy:
       fail-fast: false

build

@@ -6,12 +6,6 @@
 
 set -euo pipefail
 
-if [ "${DEBUG:-0}" -eq 1 ]; then
-    set -x
-    # set this for rebar3
-    export DIAGNOSTIC=1
-fi
-
 log_red() {
   local RED='\033[0;31m' # Red
   local NC='\033[0m' # No Color
@@ -467,14 +461,6 @@ make_docker() {
     if [ "${DOCKER_PUSH:-false}" = true ]; then
         DOCKER_BUILDX_ARGS+=(--push)
     fi
-    if [ -d "${REBAR_GIT_CACHE_DIR:-}" ]; then
-        cache_tar="$(pwd)/rebar-git-cache.tar"
-        if [ ! -f "${cache_tar}" ]; then
-            pushd "${REBAR_GIT_CACHE_DIR}" >/dev/null
-            tar -cf "${cache_tar}" .
-            popd >/dev/null
-        fi
-    fi
     if [ -n "${DEBUG:-}" ]; then
         DOCKER_BUILDX_ARGS+=(--build-arg DEBUG="${DEBUG}" --progress=plain)
     fi

deploy/docker/Dockerfile

@@ -9,23 +9,19 @@ ARG EMQX_NAME=emqx
 ARG PKG_VSN
 
 ENV EMQX_RELUP=false
-ENV DEBUG=${DEBUG}
 ENV EMQX_REL_FORM='docker'
 
 WORKDIR /emqx/
 
 RUN git config --global --add safe.directory '*'
 
-RUN if [ -f rebar-git-cache.tar ]; then \
+RUN export REBAR_GIT_CACHE_REF_AUTOFILL=0 \
-        mkdir .cache && \
-        tar -xf rebar-git-cache.tar -C .cache && \
-        export REBAR_GIT_CACHE_DIR='/emqx/.cache' && \
-        export REBAR_GIT_CACHE_REF_AUTOFILL=0 ;\
-    fi \
     && export PROFILE=${EMQX_NAME%%-elixir} \
     && export EMQX_NAME1="${EMQX_NAME}" \
     && export EMQX_NAME=${PROFILE} \
     && export EMQX_REL_PATH="/emqx/_build/${EMQX_NAME}/rel/emqx" \
+    && unset DEBUG \
+    && unset DIAGNOSTIC \
     && make ${EMQX_NAME1} \
     && rm -f ${EMQX_REL_PATH}/*.tar.gz \
     && mkdir -p /emqx-rel \