Add initialization-block to tycho runner, fix docker and improve docs

testing/pre_build.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+# Enable automatic export of all defined variables
+set -a
+
+# Source the .env file
+source .env
+
+# Disable automatic export (optional, if you want to stop exporting variables)
+set +a
+
+# Check if DOMAIN_OWNER is set
+if [ -z "$DOMAIN_OWNER" ]; then
+  echo "DOMAIN_OWNER environment variable is not set."
+  exit 1
+fi
+
+# Fetch the CODEARTIFACT_AUTH_TOKEN
+CODEARTIFACT_AUTH_TOKEN=$(aws --region eu-central-1 codeartifact get-authorization-token --domain propeller --domain-owner $DOMAIN_OWNER --query authorizationToken --output text --duration 1800)
+
+# Set the PIP_INDEX_URL
+PIP_INDEX_URL="https://aws:${CODEARTIFACT_AUTH_TOKEN}@propeller-${DOMAIN_OWNER}.d.codeartifact.eu-central-1.amazonaws.com/pypi/protosim/simple/"
+
+# Export the variables
+export CODEARTIFACT_AUTH_TOKEN
+export PIP_INDEX_URL