ci: introduce Dockerfile linting

addresses reanahub/reana#450
audrium · Nov 16, 2020 · e83061c · e83061c
1 parent 29931aa
commit e83061c
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Showing 2 changed files with 8 additions and 2 deletions.
diff --git a/Dockerfile b/Dockerfile
@@ -1,6 +1,8 @@
 FROM python:3.6-slim
 
 ENV DEBIAN_FRONTEND=noninteractive
+
+# hadolint ignore=DL3008
 RUN apt-get update && \
     apt-get install -y \
       krb5-config \
@@ -10,6 +12,7 @@ RUN apt-get update && \
       vim-tiny \
       --no-install-recommends && \
     apt-get -y autoremove && \
-    apt-get -y clean
+    apt-get -y clean && \
+    rm -rf /var/lib/apt/lists/*
 
-ADD krb5.conf /etc/krb5.conf
+COPY krb5.conf /etc/krb5.conf
diff --git a/Makefile b/Makefile
@@ -9,5 +9,8 @@ build: Dockerfile
 test:
 	docker run -i --rm $(IMAGE) klist 2>&1 | grep "klist: No credentials"
 
+lint:
+	docker run -i --rm hadolint/hadolint < Dockerfile
+
 push:
 	docker push $(IMAGE)