Add Dockerfile

Dockerfile

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+ARG RIPTIDE_TAG=0.1.0
+
+FROM rust:alpine AS build
+
+ARG TARGETARCH
+ARG RIPTIDE_TAG
+
+ENV RUSTFLAGS="-C target-feature=+crt-static"
+
+RUN apk add --no-cache build-base musl-dev pkgconf git
+
+RUN case "$TARGETARCH" in \
+      amd64) cargo_target=x86_64-unknown-linux-musl ;; \
+      arm64) cargo_target=aarch64-unknown-linux-musl ;; \
+      *) exit 1 ;; \
+    esac && \
+    rustup target add "$cargo_target" && \
+    cargo install \
+      --git https://codeberg.org/gigirassy/riptide \
+      --tag "$RIPTIDE_TAG" \
+      --root /out \
+      --target "$cargo_target"
+
+FROM kgrv/mini:tn
+
+COPY --from=build --chown=mini:mini /out/bin/riptide /riptide
+
+VOLUME ["/data"]
+
+WORKDIR /data
+
+CMD ["tini", "--", "/riptide"]