New ubuntu appliance

appliances/ubuntu.gns3a

@@ -12,7 +12,7 @@
     "symbol": "linux_guest.svg",
     "docker": {
         "adapters": 1,
-        "image": "ubuntu-debootstrap",
+        "image": "gns3/ubuntu:xenial",
         "console_type": "telnet"
     }
 }

docker/ubuntu/Dockerfile

@@ -0,0 +1,11 @@
+# docker base image for basic networking tools
+
+FROM ubuntu:xenial
+
+RUN DEBIAN_FRONTEND=noninteractive apt-get update && apt-get -y --no-install-recommends install \
+    net-tools tcpdump telnet traceroute curl iperf3 knot-host openssh-client mtr-tiny socat nano vim-tiny \
+    && rm -rf /var/lib/apt/lists/*
+
+VOLUME [ "/root" ]
+CMD [ "sh", "-c", "cd; exec bash -i" ]
+

docker/ubuntu/README.md

@@ -0,0 +1,26 @@
+# Ubuntu - Networking Toolbox
+
+This appliance contains the following networking tools:
+
+- net-tools (basic network administration tools)
+- iproute2 (advanced network administration tools)
+- ping and traceroute
+- curl (data transfer utility)
+- host (DNS lookup utility)
+- iperf3
+- mtr (full screen traceroute)
+- socat (utility for reading/writing from/to network connections)
+- ssh client
+- tcpdump
+- telnet
+
+The /root folder is mount by default
+
+## Build and publish the Images
+
+First the base image has to be created:
+
+```
+docker build -t gns3/ubuntu:xenial .
+docker push gns3/ubuntu:xenial    (optional)
+```