Update jenkins image

udc-containers/udc-jenkins-slave/src/main/resources/Dockerfile

@@ -7,9 +7,23 @@ USER root
 
 RUN apt-get update -y
 RUN apt-get install -y jq \
-      libapparmor-dev \
-      libseccomp-dev \
-      unzip
+      unzip \
+      maven \
+      apt-transport-https \
+      ca-certificates \
+      gnupg2 \
+      software-properties-common
+
+RUN curl -fsSL https://download.docker.com/linux/$(. /etc/os-release; echo "${ID}")/gpg > /tmp/dkey; apt-key add /tmp/dkey \
+ && add-apt-repository \
+    "deb [arch=amd64] https://download.docker.com/linux/$(. /etc/os-release; echo "${ID}") \
+    $(lsb_release -cs) \
+    stable" \
+ && apt-get update \
+ && apt-get -y install docker-ce
+
 RUN curl https://sdk.cloud.google.com | bash && mv google-cloud-sdk /opt
 RUN gcloud components install kubectl
 RUN curl -sfSL https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get | bash
+
+USER jenkins