Add Dockerfile for image ufw-docker-agent

.dockerignore

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+*
+!ufw-docker
+!docker-entrypoint.sh

Dockerfile

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+FROM ubuntu:18.04
+
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends apt-transport-https \
+               ca-certificates curl software-properties-common gnupg dirmngr \
+    && apt-key adv --keyserver keyserver.ubuntu.com --recv-keys 9DC858229FC7DD38854AE2D88D81803C0EBFCD88 \
+    && add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu \
+                          $(lsb_release -cs) stable" \
+    && apt-get update \
+    && apt-get install -y --no-install-recommends ufw "docker-ce=18.06.1~*" \
+    && apt-get clean autoclean \
+    && apt-get autoremove --yes \
+    && rm -rf /var/lib/{apt,dpkg,cache,log}/
+
+ADD ufw-docker docker-entrypoint.sh /usr/bin/
+
+ENTRYPOINT ["/usr/bin/docker-entrypoint.sh"]
+
+CMD ["start"]

docker-entrypoint.sh

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+#!/bin/bash
+
+[[ 0 -eq "$#" ]] && set -- start
+
+ufw_docker_agent_image=192.168.56.120:5000/ufw-docker-agent
+
+case "$1" in
+    start)
+        sleep 60; exit 1
+        ;;
+    delete|allow)
+        ufw-docker "$@"
+        ;;
+    *)
+        if [[ -f "$1" ]]; then
+            exec "$@"
+        else
+            echo "Unknown parameters: $@" >&2
+            exit 1
+        fi
+esac