etcher pro dockerfile wip

.dockerignore

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-*
-!requirements.txt

etcher-pro.Dockerfile

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+FROM balenalib/amd64-debian-node:12.6-buster-build as builder
+RUN \
+  apt-get update \
+  && \
+  apt-get install \
+    build-essential \
+    jq \
+  && \
+  apt-get clean
+WORKDIR /usr/src/app
+ADD . ./
+RUN npm config set unsafe-perm true
+RUN npm config set arch armv7l
+ENV npm_config_arch=armv7l
+RUN make electron-develop
+
+FROM alexisresinio/balena-electronjs-amd64
+WORKDIR /usr/src/app
+COPY --from=builder /usr/src/app /usr/src/app