diff --git a/.dockerignore b/.dockerignore
index 0fd0e30..9794174 100644
--- a/.dockerignore
+++ b/.dockerignore
@@ -1,4 +1,10 @@
-.git
-data
-.env
-canon
+# Send only what the build needs. Anything else in the project folder
+# (data, backups, .env, files a deploy tool adds) stays out of the build,
+# so it can't bloat the upload or change while it's being sent.
+*
+!go.mod
+!go.sum
+!cmd/
+!internal/
+!web/
+**/*_test.go
diff --git a/Dockerfile b/Dockerfile
index 3f86b75..ec5b0d0 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,4 +1,3 @@
-
 FROM golang:1-alpine AS build
 WORKDIR /src
 COPY go.mod go.sum ./