Remove apk cache after install

Saves about a meg from the image size. And I added a .dockerignore file, because why not.
byrnedo · Feb 11, 2016 · 1fa8ca6 · 1fa8ca6
1 parent 0cf4dfc
commit 1fa8ca6
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diff --git a/.dockerignore b/.dockerignore
@@ -0,0 +1 @@
+.git
diff --git a/Dockerfile b/Dockerfile
@@ -1,5 +1,6 @@
 FROM gliderlabs/alpine:latest
 
-RUN apk update && apk add curl
+RUN apk add --update curl && \
+    rm -rf /var/cache/apk/*
 
 ENTRYPOINT ["/usr/bin/curl"]