Leave no apk cache in Docker image (#3327)

diff --git a/docker/Dockerfile b/docker/Dockerfile
index 5943e1710f72004066c8478568ef29c52f183013..01052751547c5d11208c01638bde17ec33272e39 100644 (file)
--- a/docker/Dockerfile
+++ b/docker/Dockerfile
@@ -29,7 +29,7 @@ RUN \
 FROM alpine:3 as lemmy
 
 # Install libpq for postgres
-RUN apk add libpq
+RUN apk add --no-cache libpq
 
 # Copy resources
 COPY --from=builder /app/lemmy_server /app/lemmy