add excalidraw with support for storing drawings per user [ci skip]

modules/kubernetes/excalidraw/project/Dockerfile

@@ -0,0 +1,22 @@
+FROM golang:1.21-alpine AS builder
+
+WORKDIR /app
+COPY go.mod ./
+COPY main.go ./
+COPY static/ ./static/
+
+RUN go build -o excalidraw-library .
+
+FROM alpine:latest
+
+RUN apk --no-cache add ca-certificates
+
+WORKDIR /app
+COPY --from=builder /app/excalidraw-library .
+
+ENV DATA_DIR=/data
+ENV PORT=8080
+
+EXPOSE 8080
+
+CMD ["./excalidraw-library"]