From 9f97039238c21846076cd11660c8e007dfb9683a Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andr=C3=A9=20Neves?= <andrerfneves@users.noreply.github.com>
Date: Sun, 21 Jun 2026 20:05:54 +0000
Subject: [PATCH] docs(deployment): fix HEALTHCHECK example to install curl in
 Dockerfile

The HEALTHCHECK example used curl to probe the container, but the base
nginx:alpine image does not include curl by default. Added a RUN command
to install curl before the HEALTHCHECK, preventing failures when users
follow the example verbatim.
---
 DEPLOYMENT_DOCKER.md | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/DEPLOYMENT_DOCKER.md b/DEPLOYMENT_DOCKER.md
index 45802f9..fd08c54 100644
--- a/DEPLOYMENT_DOCKER.md
+++ b/DEPLOYMENT_DOCKER.md
@@ -186,6 +186,9 @@ Typical size: ~25-30 MB
 Add health checks to your container:
 
 ```dockerfile
+# Install curl for health checks (nginx:alpine doesn't include it by default)
+RUN apk add --no-cache curl
+
 HEALTHCHECK --interval=30s --timeout=3s --start-period=5s --retries=3 \
   CMD curl -f http://localhost/ || exit 1
 ```