Use debian as base image for amd64

docker/Dockerfile

@@ -1,7 +1,11 @@
-FROM frolvlad/alpine-glibc:glibc-2.31
+FROM amd64/debian:stable-slim
 ENV GOTIFY_SERVER_PORT="80"
 WORKDIR /app
-RUN apk add --no-cache ca-certificates tzdata curl
+RUN export DEBIAN_FRONTEND=noninteractive && apt-get update && apt-get install -yq \
+  tzdata \
+  curl \
+  ca-certificates \
+  && rm -rf /var/lib/apt/lists/*
 ADD gotify-app /app/
 HEALTHCHECK --interval=30s --timeout=5s --start-period=5s CMD curl --fail http://localhost:$GOTIFY_SERVER_PORT/health || exit 1
 EXPOSE 80

docker/Dockerfile.armv7

@@ -1,4 +1,4 @@
-FROM arm32v7/debian
+FROM arm32v7/debian:stable-slim
 WORKDIR /app
 ADD gotify-app /app/
 EXPOSE 80