Initial build image

Dockerfile

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+ARG ALPINE_VERSION=3.13
+
+FROM alpine:$ALPINE_VERSION AS builder
+ARG RUST_VERSION=stable
+ARG PIJUL_VERSION="~1.0.0-alpha"
+
+RUN apk add --no-cache rustup \
+    && rustup-init -yqt "$RUST_VERSION"
+RUN apk add --no-cache \
+    build-base \
+    clang \
+    libsodium-dev \
+    make \
+    openssl-dev \
+    xxhash-dev \
+    zstd-dev
+RUN /root/.cargo/bin/cargo install pijul --version "$PIJUL_VERSION"
+
+FROM alpine:$ALPINE_VERSION AS base
+LABEL maintainer "Drew Short - https://git.nulloctet.com/warricksothr"
+ENTRYPOINT ["/entrypoint.sh"]
+EXPOSE 22
+COPY --from=builder /root/.cargo/bin/pijul /usr/local/bin/
+COPY rootfs /
+
+RUN apk add --no-cache openssh \
+  && sed -i s/#PermitRootLogin.*/PermitRootLogin\ no/ /etc/ssh/sshd_config \
+  && echo "root:root" | chpasswd

rootfs/entrypoint.sh

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+#!/bin/ash
+
+# generate host keys if not present
+ssh-keygen -A
+
+# do not detach (-D), log to stderr (-e), passthrough other arguments
+exec /usr/sbin/sshd -D -e "$@"