From f4138fd73341b3f2f884d8685b029b0402768cc5 Mon Sep 17 00:00:00 2001
From: Frederik Ring <frederik.ring@gmail.com>
Date: Fri, 4 Aug 2023 13:49:58 +0200
Subject: [PATCH] Run httpd server in container if requested

---
 Dockerfile    | 2 +-
 entrypoint.sh | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/Dockerfile b/Dockerfile
index 42249c4..a0963de 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -13,7 +13,7 @@ FROM alpine:3.18
 
 WORKDIR /root
 
-RUN apk add --no-cache ca-certificates
+RUN apk add --no-cache ca-certificates busybox-extras
 
 COPY --from=builder /app/cmd/backup/backup /usr/bin/backup
 COPY --chmod=755 ./entrypoint.sh /root/
diff --git a/entrypoint.sh b/entrypoint.sh
index edbf6c9..2ecd7a1 100644
--- a/entrypoint.sh
+++ b/entrypoint.sh
@@ -22,5 +22,12 @@ else
   done
 fi
 
+if [ ! -z "$SERVE_METRICS_PATH" ]; then
+  mkdir -p /var/www/html${SERVE_METRICS_PATH}
+  echo "ok" > /var/www/html${SERVE_METRICS_PATH}/metrics.txt
+  httpd -h /var/www/html -p "${SERVE_METRICS_PORT:-80}"
+  echo "Serving metrics on port ${SERVE_METRICS_PORT:-80}."
+fi
+
 echo "Starting cron in foreground."
 crond -f -d 8