Add container image build script

.containerignore

@@ -0,0 +1,5 @@
+*
+!Cargo.*
+!js/
+!src/
+!templates/

Containerfile

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+FROM git.pyrocufflink.net/containerimages/dch-base AS build
+
+RUN --mount=type=cache,target=/var/cache \
+	microdnf install -y \
+		--setopt persistdir=/var/cache/dnf \
+		--setopt install_weak_deps=0 \
+		cargo \
+		openssl-devel \
+		&& :
+
+WORKDIR /build
+
+COPY Cargo.* .
+
+COPY src src
+
+RUN --mount=type=cache,target=/root/.cargo \
+	cargo build --release --locked
+
+FROM git.pyrocufflink.net/containerimages/dch-base AS esbuild
+
+RUN --mount=type=cache,target=/var/cache \
+	microdnf install -y \
+		--setopt persistdir=/var/cache/dnf \
+		--setopt install_weak_deps=0 \
+		npm \
+		&& :
+
+WORKDIR /build
+
+COPY js .
+
+RUN --mount=type=cache,target=/root/.cargo \
+	npm ci && npm run build
+
+
+FROM git.pyrocufflink.net/containerimages/dch-base
+
+COPY --from=build /build/target/release/receipts /usr/local/bin
+
+COPY --from=esbuild /build/dist /usr/local/share/receipts/static
+
+COPY templates /usr/local/share/receipts/templates
+
+WORKDIR /usr/local/share/receipts
+
+ENTRYPOINT ["/usr/local/bin/receipts"]
+
+CMD ["/etc/receipts/config.toml"]