Add docker host group

Dockerfile

@@ -5,13 +5,14 @@ USER root
 RUN apt-get update && apt-get install -y gnupg2 lsb-release \
   && curl -fsSLo /usr/share/keyrings/docker-archive-keyring.asc https://download.docker.com/linux/debian/gpg \
   && echo "deb [arch=$(dpkg --print-architecture) signed-by=/usr/share/keyrings/docker-archive-keyring.asc] https://download.docker.com/linux/debian $(lsb_release -cs) stable" > /etc/apt/sources.list.d/docker.list \
-  && apt-get update && apt-get install -y docker-ce docker-ce-cli \
-  && usermod -aG docker jenkins \
+  && apt-get update && apt-get install -y docker-ce docker-ce-cli containerd.io \
+  && usermod -a -G docker jenkins \
+  && groupmod -g 992 docker \
   && apt-get clean \
   && rm -rf /var/lib/apt/lists/*
 
 # setup jenkins plugins
-USER jenkins:jenkins
+USER jenkins
 RUN jenkins-plugin-cli --plugins \
         antisamy-markup-formatter \
         cloudbees-folder \