From 41416642e7cc1fa2f203ace551a64a70e7dd49ce Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Peider=20K=C3=B6nz?= <peider.koenz@meteoswiss.ch>
Date: Mon, 22 Dec 2025 10:48:48 +0100
Subject: [PATCH] add indications in Dockerfile to download Liberation Sans
 font

---
 Dockerfile | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Dockerfile b/Dockerfile
index 147d6b00..59515415 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,6 +18,11 @@ FROM dockerhub.apps.cp.meteoswiss.ch/mch/python-3.10:latest-slim AS base
 ARG VERSION
 LABEL ch.meteoswiss.project=pyflexplot-${VERSION}
 
+# Install system fonts used by matplotlib
+RUN apt-get update \
+    && apt-get install -y --no-install-recommends fonts-liberation fontconfig \
+    && rm -rf /var/lib/apt/lists/*
+
 COPY --from=builder /src/app-root/dist/*.whl /src/app-root/
 COPY --from=builder /src/app-root/requirements.txt /src/app-root/