diff --git a/.dockerignore b/.dockerignore
new file mode 100644
index 0000000..0a79056
--- /dev/null
+++ b/.dockerignore
@@ -0,0 +1,8 @@
+# Ignore everything
+*
+
+# Except the actual Python-package related files
+!atmosphere/**
+!poetry.lock
+!pyproject.toml
+!README.md