Add some more tools

Dockerfile

@@ -1,6 +1,17 @@
 FROM quay.io/centos/centos:stream8
 
 RUN dnf install --best --refresh -y \
-        tcpdump \
+      git \
+      iproute \
+      iptables \
+      iputils \
+      mtr \
+      net-tools \
+      strace \
+      tcpdump \
+      traceroute \
+      vim-enhanced \
     && dnf clean all \
     && rm -rf /var/cache/yum \
+
+CMD ["sleep", "infinity"]