begin rework builder

docker/_builder/setup_builder.sh

@@ -0,0 +1,53 @@
+#!/usr/bin/env bash
+
+# Got root?
+myWHOAMI=$(whoami)
+if [ "$myWHOAMI" != "root" ]
+  then
+    echo "Need to run as root ..."
+    exit
+fi
+
+# Only run with command switch
+if [ "$1" != "-y" ]; then
+  echo "### Setting up docker for Multi Arch Builds."
+  echo "### Requires Docker packages from https://get.docker.com/"
+  echo "### Use on x64 only!"
+  echo "### Run with -y if you fit the requirements!"
+  echo
+  exit
+fi
+
+# We need to create a new builder as the default one cannot handle multi-arch builds
+# https://docs.docker.com/desktop/multi-arch/
+docker buildx create --name mybuilder
+
+# Set as default
+docker buildx use mybuilder
+
+# We need to install emulators, arm64 should be fine for now
+# https://github.com/tonistiigi/binfmt/
+docker run --privileged --rm tonistiigi/binfmt --install arm64
+
+# Check if everything is setup correctly
+docker buildx inspect --bootstrap
+echo
+echo "### Done."
+echo
+echo "Example (manual build): docker buildx build --platform linux/amd64,linux/arm64 -t username/demo:latest --push ."
+echo "Docs: https://docs.docker.com/desktop/multi-arch/"
+echo
+echo "Example (build release): docker compose build"
+echo
+echo "Example (push release): docker compose build --push"
+echo
+echo "Example (build single image): docker compose build tpotinit"
+echo
+echo "Example (build and push single image): docker compose build tpotinit --push"
+echo
+echo "Resolve problems running ..."
+echo "docker buildx create --use --name mybuilder"
+echo "docker buildx inspect mybuilder --bootstrap"
+echo "docker login -u <username>"
+echo "docker login ghcr.io - <username>"
+echo