ARG BUILDDATE for build cache invalidation

sorah · sorah · commit fd068c0ca4b3 · 2019-10-17T22:47:52.000+09:00
diff --git a/debian/Dockerfile.bionic b/debian/Dockerfile.bionic
@@ -2,7 +2,7 @@
 FROM ubuntu:18.04
 
 # just to invalidate cache
-ENV NKMIBUILDREV=1
+ARG BUILDDATE=99999999
 
 ENV DEBIAN_FRONTEND=noninteractive
 RUN mkdir -p /build \
diff --git a/debian/Dockerfile.xenial b/debian/Dockerfile.xenial
@@ -2,7 +2,7 @@
 FROM ubuntu:16.04
 
 # just to invalidate cache
-ENV NKMIBUILDREV=1
+ARG BUILDDATE=99999999
 
 RUN mkdir -p /build \
   && apt-get update \
