Docker image for Linux amd64/arm64/s390x. Part 2.

Thanks to xet7 !

releases/docker-build-deps.sh

@@ -0,0 +1,5 @@
+# Create a new builder instance that supports multi-platform
+docker buildx create --name mybuilder --driver docker-container --use
+
+# Start the builder
+docker buildx inspect --bootstrap

releases/docker-build.sh

@@ -1,18 +1,16 @@
 #!/bin/bash
 
-# 1) Check that there is only one parameter
-#    of Wekan version number:
-
 if [ $# -ne 1 ]
   then
     echo "Syntax with Wekan version number:"
-    echo "  ./release.sh 8.24"
+    echo "  ./releases/docker-build.sh 8.24"
     exit 1
 fi
 
+# Ensure you are using the correct builder
+docker buildx use mybuilder
+
 docker buildx build \
   --platform linux/amd64,linux/arm64,linux/s390x \
   -t wekan/wekan:v$1 \
   --push .
-
-# OLD: docker build -t wekan .