Init ubuntu based rust

Author: xoac

.github/workflows/main.yml

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+name: Publish Docker
+on: [push]
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@master
+    - name: Publish to Registry
+      uses: elgohr/Publish-Docker-Github-Action@master
+      with:
+        name: sylwekrapala/rust-ubuntu
+        username: ${{ secrets.DOCKER_USERNAME }}
+        password: ${{ secrets.DOCKER_TOKEN }}
+        dockerfile: Dockerfile
+        tags: "latest,bionic,1.41-bionic, 1-bionic"

Dockerfile

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+FROM buildpack-deps:bionic
+
+# based on https://github.com/rust-lang/docker-rust/blob/76921dd61d80c4e8107b858d26bf5e52c4c09816/1.41.0/buster/Dockerfile
+
+ENV RUSTUP_HOME=/usr/local/rustup \
+    CARGO_HOME=/usr/local/cargo \
+    PATH=/usr/local/cargo/bin:$PATH \
+    RUST_VERSION=1.41.0
+
+RUN set -eux; \
+    dpkgArch="$(dpkg --print-architecture)"; \
+    case "${dpkgArch##*-}" in \
+        amd64) rustArch='x86_64-unknown-linux-gnu'; rustupSha256='ad1f8b5199b3b9e231472ed7aa08d2e5d1d539198a15c5b1e53c746aad81d27b' ;; \
+        armhf) rustArch='armv7-unknown-linux-gnueabihf'; rustupSha256='6c6c3789dabf12171c7f500e06d21d8004b5318a5083df8b0b02c0e5ef1d017b' ;; \
+        arm64) rustArch='aarch64-unknown-linux-gnu'; rustupSha256='26942c80234bac34b3c1352abbd9187d3e23b43dae3cf56a9f9c1ea8ee53076d' ;; \
+        i386) rustArch='i686-unknown-linux-gnu'; rustupSha256='27ae12bc294a34e566579deba3e066245d09b8871dc021ef45fc715dced05297' ;; \
+        *) echo >&2 "unsupported architecture: ${dpkgArch}"; exit 1 ;; \
+    esac; \
+    url="https://static.rust-lang.org/rustup/archive/1.21.1/${rustArch}/rustup-init"; \
+    wget "$url"; \
+    echo "${rustupSha256} *rustup-init" | sha256sum -c -; \
+    chmod +x rustup-init; \
+    ./rustup-init -y --no-modify-path --profile minimal --default-toolchain $RUST_VERSION; \
+    rm rustup-init; \
+    chmod -R a+w $RUSTUP_HOME $CARGO_HOME; \
+    rustup --version; \
+    cargo --version; \
+    rustc --version;

README.md

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+[![Docker Pulls](https://img.shields.io/docker/pulls/sylwekrapala/rust-ubuntu)](https://hub.docker.com/r/sylwekrapala/rust-ubuntu)
+[![MicroBadger Size](https://img.shields.io/microbadger/image-size/sylwekrapala/rust-ubuntu)](https://hub.docker.com/r/sylwekrapala/rust-ubuntu)
+[![Publish Docker](https://github.com/xoac/docker-evcxr/workflows/Publish%20Docker/badge.svg)](https://github.com/xoac/docker-evcxr/actions?query=workflow%3A%22Publish+Docker%22)
+
+# docker-rust-ubuntu
+
+This based on [official rust build process](https://github.com/rust-lang/docker-rust) but use ubuntu as base image.