Update docker/entrypoint.sh

docker/entrypoint.sh

@@ -0,0 +1,27 @@
+#!/bin/bash
+
+if [ ! -f "xapktoapk.sign.properties" -a ! -f "xapktoapk.keystore" ]; then
+    	echo "xapktoapk.sign.properties and xapktoapk.keystore not found, create a configuration with a randomly generated key."
+	PASSWORD="$(LC_ALL=C tr -dc '[:alnum:]' < /dev/urandom | head -c20)"
+	echo "Generated password: $PASSWORD"
+    	keytool \
+		-genkey \
+		-v \
+		-keystore xapktoapk.keystore \
+		-alias xapktoapk \
+		-keyalg RSA \
+		-keysize 2048 \
+		-validity 10000 \
+		-storepass "$PASSWORD" \
+		-keypass "$PASSWORD" \
+		-dname "CN=xapktoapk, OU=xapktoapk, O=xapktoapk, L=xapktoapk, S=xapktoapk, C=US"
+	cat <<-EOF > xapktoapk.sign.properties
+		sign.enabled=true
+		sign.keystore.file=/xapktoapk/xapktoapk.keystore 
+		sign.keystore.password=$PASSWORD
+		sign.key.alias=xapktoapk
+		sign.key.password=$PASSWORD
+	EOF
+fi
+
+python xapktoapk.py "$@"