adds connectivity test script

build-deluge.jenkins

@@ -44,8 +44,51 @@ spec:
 
 		stage('Build Container') {
 			container('kaniko') {
+				def connectivity_test = """
+#! /usr/bin/env bash
+if [[ -z "${DDNS_HOST}" ]] || [[ "${DDNS_HOST}" == "" ]]; then
+	printf '%s\n' "Dynamic DNS host is not set."
+	exit 100
+fi
+
+printf '%s\n' "Detecting public IP"
+DIP=$(dig @ns1.google.com TXT o-o.myaddr.l.google.com +short | sed -e 's/"//g')
+if [[ -z "${DIP+x}" ]] || [[ "${DIP}" == "" ]]; then
+	printf '%s\n' "Unable to detect real-world IP."
+	exit 100
+fi
+
+printf '%s\n' "Getting known IP"
+KIP=$(dig ${DDNS_HOST} +short)
+if [[ -z "${KIP+x}" ]] || [[ "${KIP}" == "" ]]; then
+	printf '%s\n' "Unable to get known IP."
+	exit 100
+fi
+
+if [[ "${DIP}" == "${KIP}" ]]; then
+	printf '%s\n' "VPN is not functional."
+	exit 100
+fi
+
+printf '%s\n' "Checking connectivity (1 of 2)"
+ping -c 2 google.com > /dev/null
+if [[ "${?}" != "0" ]]; then
+	printf '%s\n' "No internet connectivity."
+	exit 100
+fi
+
+printf '%s\n' "Checking connectivity (2 of 2)"
+curl --silent --fail --insecure https://www.msftncsi.com/ncsi.txt > /dev/null
+if [[ "${?}" != "0" ]]; then
+	printf '%s\n' "No internet connectivity."
+	exit 100
+fi
+"""
+
 
 				def dockerfile = """FROM linuxserver/deluge:amd64-latest
+COPY connectivity_test.sh /root
+
 RUN apt-get update && \\
 	apt-get install -y openvpn iputils-ping dnsutils && \\
 	apt-get clean && \\
@@ -53,6 +96,8 @@ RUN apt-get update && \\
 """
 
 				writeFile file: workspace + '/Dockerfile', text: dockerfile
+				writeFile file: workspace + '/connectivity_test.sh', text: connectivity_test
+				sh "chmod +x \"${workspace}/connectivity_test.sh\""
 				sh "/kaniko/executor --context \"${workspace}\" -f \"${workspace}/Dockerfile\" --destination \"${repository}/nhyatt/deluge:latest\""
 			}
 		}