build: squash Docker image layers (#30)

Refs wagoodman#535
joschi · Nov 6, 2024 · 3372fe8 · 3372fe8
1 parent eca3f46
commit 3372fe8
Showing 1 changed file with 5 additions and 3 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -1,10 +1,12 @@
-FROM alpine:3.20
+FROM alpine:3.20 AS base
 
 ARG DOCKER_CLI_VERSION=${DOCKER_CLI_VERSION}
 RUN wget -O- https://download.docker.com/linux/static/stable/$(uname -m)/docker-${DOCKER_CLI_VERSION}.tgz | \
-    tar -xzf - docker/docker --strip-component=1 && \
-    mv docker /usr/local/bin
+    tar -xzf - docker/docker --strip-component=1 -C /usr/local/bin
 
 COPY dive /usr/local/bin/
 
+FROM scratch
+COPY --from=base / /
+
 ENTRYPOINT ["/usr/local/bin/dive"]