Dockerfile modernization (#129)

* dockerfile modernization Signed-off-by: Peter Novotnak <[email protected]> * reduce built image size Signed-off-by: Peter Novotnak <[email protected]>
istio-ecosystem · Aug 6, 2020 · 9e3a122 · 9e3a122
1 parent c78f815
commit 9e3a122
Showing 1 changed file with 5 additions and 4 deletions.
diff --git a/admiral/docker/Dockerfile.admiral b/admiral/docker/Dockerfile.admiral
@@ -1,8 +1,9 @@
-FROM ubuntu:xenial
+FROM ubuntu:focal
 
-RUN apt update -y
-
-RUN apt install -y curl
+RUN set -ex; \
+  apt-get update; \
+  apt-get install -qy --no-install-recommends curl; \
+  rm -rf /var/lib/apt/lists/*
 
 COPY ./out/admiral /usr/local/admiral