Move template to template/ dir, add CI workflow, use pre-built image

template/config/infrastructure.conf

@@ -0,0 +1,20 @@
+# Infrastructure Map Configuration
+#
+# Format:
+# GROUPNAME
+#   USERNAME@SERVERNAME
+#   USERNAME@SERVERNAME
+#   ...
+#
+# GROUPNAME is a freeform label to group servers together.
+# USERNAME@SERVERNAME is the SSH user and hostname/IP to connect to.
+#
+# Example:
+#
+# Production
+#   root@prod-web-01
+#   root@prod-db-01
+#
+# Development
+#   deploy@dev-01
+#   deploy@dev-02