add Dockerfile for containerized builds

Dockerfile

@@ -0,0 +1,30 @@
+# build with $ podman build --target export --output type=local,dest=./dist .
+
+# Use Rocky Linux 8 as base for now
+FROM rockylinux:8 AS builder
+
+# Install required tools: git, curl, Node.js (LTS), npm
+# using NodeJS:18 per GDCC README
+RUN dnf -y module enable nodejs:18
+
+RUN dnf -y install curl nodejs && \
+    dnf clean all
+
+# Set working directory
+WORKDIR /build/dataverse-globus
+
+# Copy package files first for better layer caching
+COPY package*.json ./
+
+# Install npm dependencies
+RUN npm install
+
+# Copy the rest of the application
+COPY . .
+
+# Build Angular project
+RUN npm run build
+
+# export dist to filesystem
+FROM scratch AS export
+COPY --from=builder /build/dataverse-globus/dist .