From f4e98653d4336f7fb7f100a269c4a40ffc486596 Mon Sep 17 00:00:00 2001
From: Yaojia Wang <yaojia.wang@colacoder.com>
Date: Wed, 18 Mar 2026 15:28:11 +0100
Subject: [PATCH] fix: add ca-certificates and libssl-dev to fix OpenSSL TLS
 errors

yfinance curl calls failed with OPENSSL_internal:invalid library in
python:3.12-slim. Adding ca-certificates, libssl-dev and curl ensures
the OpenSSL libraries are available at runtime.
---
 Dockerfile | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index 48575c9..59296f6 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ FROM python:3.12-slim AS base
 WORKDIR /app
 
 RUN apt-get update && \
-    apt-get install -y --no-install-recommends gcc g++ && \
+    apt-get install -y --no-install-recommends gcc g++ ca-certificates libssl-dev curl && \
     rm -rf /var/lib/apt/lists/*
 
 COPY pyproject.toml ./