[Feature] Docker: use Debian slim variant

diff --git a/docker/Dockerfile b/docker/Dockerfile
index a9665062080459ca67152139298c5a1799f577f4..be0961974c284ebd4186eaca5fe3a9ed2f006ab2 100644 (file)
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -1,6 +1,10 @@
-FROM debian:buster
+FROM debian:buster-slim
 
-RUN    apt-get update && apt-get install -y --no-install-recommends gnupg dirmngr && rm -rf /var/lib/apt/lists/*
+RUN    apt-get update && apt-get install -y --no-install-recommends \
+               ca-certificates \
+               dirmngr \
+               gnupg \
+       && rm -rf /var/lib/apt/lists/*
 
 RUN    set -x \
 # gpg: key FFA232EDBF21E25E: public key "Rspamd Nightly Builds (Rspamd Nightly Builds) <vsevolod@highsecure.ru>" imported