feat: release action

Dockerfile

@@ -0,0 +1,11 @@
+# Stage 1: Build Go binary
+FROM golang:1.23-alpine AS builder
+WORKDIR /app
+COPY . .
+RUN go mod tidy && go build -o /portainer-deploy main.go
+
+# Stage 2: Runtime container
+FROM alpine:3.20
+RUN apk add --no-cache ca-certificates
+COPY --from=builder /portainer-deploy /usr/local/bin/portainer-deploy
+ENTRYPOINT ["portainer-deploy"]