From 7edeed1e88cf444cc8219c7764aae6af50a8d200 Mon Sep 17 00:00:00 2001
From: Pieter Hollander <git@pieterhollander.nl>
Date: Tue, 5 Dec 2023 17:42:56 +0100
Subject: [PATCH] Add Dockerfile.

---
 Dockerfile | 26 ++++++++++++++++++++++++++
 1 file changed, 26 insertions(+)
 create mode 100644 Dockerfile

diff --git a/Dockerfile b/Dockerfile
new file mode 100644
index 0000000..3166a02
--- /dev/null
+++ b/Dockerfile
@@ -0,0 +1,26 @@
+# Use buildx for multi-architecture support
+FROM --platform=${BUILDPLATFORM} golang:1.21 AS builder
+
+WORKDIR /app
+
+# Copy go.mod and go.sum files to download dependencies
+COPY go.mod go.sum ./
+RUN go mod download
+
+# Copy the source code into the container
+COPY . .
+
+# Build the application for the specified target architecture
+RUN CGO_ENABLED=0 GOOS=linux GOARCH=${TARGETARCH} go build -o mqtt-postgresql .
+
+# Create a minimal runtime image
+FROM --platform=${TARGETPLATFORM} scratch
+
+WORKDIR /app
+
+# Copy the executable from the builder stage
+COPY --from=builder /app/mqtt-postgresql /app/mqtt-postgresql
+COPY --from=builder /etc/ssl/certs/ca-certificates.crt /etc/ssl/certs/
+
+# Run the application
+CMD ["./mqtt-postgresql"]