Release Dev into Latest

.travis.yml

@@ -32,6 +32,7 @@ matrix:
     - env: SUB_IMAGE=openskynetwork
     - env: SUB_IMAGE=planefinder
     - env: SUB_IMAGE=virtualradar
+    - env: SUB_IMAGE=duckdns
 
 before_install:
   # exit on error

docker-compose.yml

@@ -219,3 +219,19 @@ services:
         limits:
           cpus: '0.75'
           memory: 512M
+
+  # duckdns ###################################################################
+  duckdns:
+    image: thebiggerguy/docker-ads-b-duckdns:${TAG:-latest}
+    build:
+      context: duckdns
+      dockerfile: Dockerfile-duckdns
+      #cache_from:
+      #  - thebiggerguy/docker-ads-b-duckdns
+      #  - thebiggerguy/docker-ads-b-duckdns:${TAG:-latest} 
+    env_file:
+      - variables-duckdns.env
+    deploy:
+      restart_policy:
+        condition: always
+        delay: 5s

duckdns/Dockerfile-duckdns

@@ -0,0 +1,22 @@
+FROM multiarch/alpine:armhf-v3.12
+
+RUN apk add --no-cache curl ca-certificates
+
+COPY duckdns-cron /etc/cron.d/duckdns-cron
+RUN chmod 0644 /etc/cron.d/duckdns-cron
+RUN crontab /etc/cron.d/duckdns-cron
+
+COPY duckdns.sh /usr/local/bin/duckdns
+RUN chmod 0700 /usr/local/bin/duckdns
+
+ENTRYPOINT ["crond", "-f"]
+
+# Metadata
+ARG VCS_REF="Unknown"
+LABEL maintainer="adsb@thebiggerguy.net" \
+      org.label-schema.name="Docker ADS-B - DuckDNS" \
+      org.label-schema.description="Docker container for ADS-B - This is the duckdns.com component" \
+      org.label-schema.url="https://github.com/TheBiggerGuy/docker-ads-b" \
+      org.label-schema.vcs-ref="${VCS_REF}" \
+      org.label-schema.vcs-url="https://github.com/TheBiggerGuy/docker-ads-b" \
+      org.label-schema.schema-version="1.0"

duckdns/duckdns-cron

@@ -0,0 +1,2 @@
+*/5 * * * * duckdns >/proc/1/fd/1 2>/proc/1/fd/2
+# An empty line is required at the end of this file for a valid cron file.

duckdns/duckdns.sh

@@ -0,0 +1,17 @@
+#!/bin/sh
+
+set -o errexit          # Exit on most errors (see the manual)
+#set -o errtrace         # Make sure any error trap is inherited
+set -o nounset          # Disallow expansion of unset variables
+#set -o pipefail         # Use last non-zero exit code in a pipeline
+#set -o xtrace          # Trace the execution of the script (debug)
+
+
+echo "Read DUCKDNS_DOMAIN=${DUCKDNS_DOMAIN}"
+echo "Read DUCKDNS_TOKEN=$(echo "${DUCKDNS_TOKEN}" | sed -E 's/(...).*(...)/\1*****\2/g')"
+echo
+
+echo "Updating DuckDNS"
+curl -A 'TheBiggerGuy/docker-ads-b' --silent "https://www.duckdns.org/update?domains=${DUCKDNS_DOMAIN}&token=${DUCKDNS_TOKEN}&ip="
+echo
+echo "DuckDNS updated"

variables-duckdns.env

@@ -0,0 +1,4 @@
+# variables-duckdns
+
+DUCKDNS_DOMAIN=
+DUCKDNS_TOKEN=