linting Dockerfile (#2)

https://github.com/hadolint/hadolint/wiki/DL3017 https://github.com/hadolint/hadolint/wiki/DL3019
ScottBrenner · Jul 31, 2019 · fec199a · fec199a
1 parent b4dfba1
commit fec199a
Showing 1 changed file with 2 additions and 4 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -12,12 +12,10 @@ LABEL "com.github.actions.color"="green"
 
 LABEL "maintainer"="Scott Brenner <[email protected]>"
 
-RUN apk update && apk upgrade
-RUN apk add python3
-RUN rm -rf /var/cache/apk/*
+RUN apk --no-cache add python3
 RUN pip3 install cfn-lint
 
 COPY entrypoint.sh /entrypoint.sh
 RUN ["chmod", "+x", "/entrypoint.sh"]
 ENTRYPOINT ["/entrypoint.sh"]
-CMD ["**/*.yml"]
+CMD ["**/*.yml"]