Use ADD --chown

README.md

@@ -158,8 +158,7 @@ FROM ekidd/rust-musl-builder
 
 # We need to add the source code to the image because `rust-musl-builder`
 # assumes a UID of 1000, but TravisCI has switched to 2000.
-ADD . ./
-RUN sudo chown -R rust:rust .
+ADD --chown=rust:rust . ./
 
 CMD cargo build --release
 ```

examples/linking-with-git2/Dockerfile

@@ -7,10 +7,7 @@
 FROM ekidd/rust-musl-builder AS builder
 
 # Add our source code.
-ADD . ./
-
-# Fix permissions on source code.
-RUN sudo chown -R rust:rust /home/rust
+ADD --chown=rust:rust . ./
 
 # Build our application.
 RUN cargo build

examples/using-diesel/Dockerfile

@@ -11,10 +11,7 @@ ARG BASE_IMAGE=ekidd/rust-musl-builder:latest
 FROM ${BASE_IMAGE} AS builder
 
 # Add our source code.
-ADD . ./
-
-# Fix permissions on source code.
-RUN sudo chown -R rust:rust /home/rust
+ADD --chown=rust:rust . ./
 
 # Build our application.
 RUN cargo build --release