Sync docker images for arm64

.travis.yml

@@ -0,0 +1,10 @@
+language: python
+
+arch:
+  - arm64
+
+services:
+  - docker
+
+script:
+  - ./sync_images.sh

sync_images.sh

@@ -0,0 +1,20 @@
+#!/bin/bash
+
+file="images.properties"
+
+if [ -f "$file" ]
+then
+  echo "$file found."
+
+  while IFS='=' read -r key value
+  do
+    #echo "${key}=${value}"
+    docker pull ${key}
+    docker tag ${key} ${value}
+    docker push ${value}
+  done < "$file"
+
+else
+  echo "$file not found."
+fi
+