Fix issue: rsyslog rate limit does not work on version 8.2110.0 (soni…

…c-net#11588)

#### Why I did it

The default stable version of rsyslog on bullseye has a bug about rate limit. It causes rate limit not work. The bug has been fixed on backport version 8.2206.0-1~bpo11+1.

Buster has no such issue.

#### How I did it

Upgrade rsyslog from 8.2110.0 to 8.2206.0-1~bpo11+1

#### How to verify it

Manual test

build_debian.sh

@@ -331,7 +331,6 @@ sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y in
     sysfsutils              \
     squashfs-tools          \
     grub2-common            \
-    rsyslog                 \
     screen                  \
     hping3                  \
     tcptraceroute           \
@@ -356,6 +355,10 @@ sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -y in
     jq                      \
     auditd
 
+# default rsyslog version is 8.2110.0 which has a bug on log rate limit,
+# use backport version
+sudo LANG=C DEBIAN_FRONTEND=noninteractive chroot $FILESYSTEM_ROOT apt-get -t bullseye-backports -y install rsyslog
+
 # Have systemd create the auditd log directory
 sudo mkdir -p ${FILESYSTEM_ROOT}/etc/systemd/system/auditd.service.d
 sudo tee ${FILESYSTEM_ROOT}/etc/systemd/system/auditd.service.d/log-directory.conf >/dev/null <<EOF

dockers/docker-base-bullseye/Dockerfile.j2

@@ -48,7 +48,6 @@ RUN apt-get update &&        \
         python3              \
         python3-distutils    \
         python3-pip          \
-        rsyslog              \
         vim-tiny             \
 # Install redis-tools
         redis-tools          \
@@ -65,6 +64,10 @@ RUN apt-get update &&        \
         libzmq5              \
         libwrap0
 
+# default rsyslog version is 8.2110.0 which has a bug on log rate limit,
+# use backport version 8.2206.0-1~bpo11+1
+RUN apt-get -t bullseye-backports -y install rsyslog
+
 # Upgrade pip via PyPI and uninstall the Debian version
 RUN pip3 install --upgrade pip
 RUN apt-get purge -y python3-pip