From 5ca1409a6cefa9800975ac22a6f7d4e3caedbff7 Mon Sep 17 00:00:00 2001
From: Steve Krulewitz <skrulx@gmail.com>
Date: Sun, 12 Jan 2025 03:22:03 +0000
Subject: [PATCH] add healthcheck

---
 Dockerfile     |  9 ++++++++-
 healthcheck.sh | 13 +++++++++++++
 2 files changed, 21 insertions(+), 1 deletion(-)
 create mode 100755 healthcheck.sh

diff --git a/Dockerfile b/Dockerfile
index 490a682..f860ec3 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -22,12 +22,19 @@ RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} GOARM=${GOARM} make buil
 #RUN CGO_ENABLED=0 GOOS=${TARGETOS} GOARCH=${TARGETARCH} GOARM=${GOARM} go build -ldflags="-w -s" -o /go/bin/teslaBleHttpProxy main.go
 RUN mkdir -p /go/bin/key
 
-FROM scratch
+#FROM scratch
+FROM alpine:3.21
+
 # Timezone data
 COPY --from=builder /usr/share/zoneinfo /usr/share/zoneinfo
 ENV TZ=Europe/Berlin
 #WORKDIR /app/
 COPY --from=builder /go/bin/teslaBleHttpProxy /teslaBleHttpProxy
 COPY --from=builder /go/bin/key /key
+COPY healthcheck.sh /healthcheck.sh
+RUN chmod +x /healthcheck.sh
 EXPOSE 8080
+
+HEALTHCHECK --interval=30s --timeout=10s --start-period=5s --retries=3  CMD /healthcheck.sh
+
 ENTRYPOINT ["/teslaBleHttpProxy"]
diff --git a/healthcheck.sh b/healthcheck.sh
new file mode 100755
index 0000000..122d53e
--- /dev/null
+++ b/healthcheck.sh
@@ -0,0 +1,13 @@
+#!/bin/sh
+
+THRESHOLD_BYTES=100000000
+
+MEMORY_USAGE_BYTES=$(cat /sys/fs/cgroup/memory.current)
+
+if [ $MEMORY_USAGE_BYTES -gt $THRESHOLD_BYTES ]; then
+    echo "Memory usage ($MEMORY_USAGE_BYTES) exceeds threshold ($THRESHOLD_BYTES)"
+    exit 1
+else
+    echo "Memory usage OK: $MEMORY_USAGE_BYTES"
+    exit 0
+fi
\ No newline at end of file