Merge branch 'xvar/add-diagnostic-tools-docker' into 'master'

Added iproute2 and net-tools to docker image to facilitate diagnosing network issues

See merge request veloren/veloren!3415

server-cli/Dockerfile

@@ -6,11 +6,14 @@ LABEL com.centurylinklabs.watchtower.stop-signal="SIGUSR1"
 ARG PROJECTNAME=server-cli
 
 # librust-backtrace+libbacktrace-dev = backtrace functionality
+# iproute2 and net-tools for diagnostic purposes
 RUN apt-get update \
     && export DEBIAN_FRONTEND=noninteractive \
     && apt-get install -y --no-install-recommends --assume-yes \
         ca-certificates \
         librust-backtrace+libbacktrace-dev \
+        iproute2 \
+        net-tools \
     && rm -rf /var/lib/apt/lists/*;
 
 COPY ./veloren-server-cli /opt/veloren-server-cli