Spit install into script and add step to install docker apt repo

rustup/Dockerfile

@@ -4,14 +4,8 @@ LABEL org.opencontainers.image.authors="matthew.pomes@pm.me"
 
 WORKDIR /root
 
-# common packages
+COPY ./install-deps.sh .
-RUN apt-get update && \
+RUN bash ./install-deps.sh
-    apt-get install --no-install-recommends -y \
-    ca-certificates curl file \
-    build-essential musl-tools \
-    autoconf automake autotools-dev libtool xutils-dev \
-    docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin \
-    && rm -rf /var/lib/apt/lists/*
 
 # ENV SSL_VERSION=1.0.2u
 

rustup/install-deps.sh

@@ -0,0 +1,26 @@
+#!/bin/bash
+
+apt update || exit 1
+apt upgrade -y || exit 1
+apt install --no-install-recommends -y  ca-certificates curl || exit 1
+apt install --no-install-recommends -y file || exit 1
+apt install --no-install-recommends -y build-essential musl-tools || exit 1
+apt install --no-install-recommends -y autoconf automake autotools-dev libtool xutils-dev || exit 1
+
+# Docker key
+install -m 0755 -d /etc/apt/keyrings || exit 1
+curl -fsSL https://download.docker.com/linux/debian/gpg -o /etc/apt/keyrings/docker.asc || exit 1
+chmod a+r /etc/apt/keyrings/docker.asc || exit 1
+tee /etc/apt/sources.list.d/docker.sources <<EOF
+Types: deb
+URIs: https://download.docker.com/linux/debian
+Suites: $(. /etc/os-release && echo "$VERSION_CODENAME")
+Components: stable
+Architectures: $(dpkg --print-architecture)
+Signed-By: /etc/apt/keyrings/docker.asc
+EOF
+
+apt update || exit 1
+apt install --no-install-recommends -y docker-ce docker-ce-cli containerd.io docker-buildx-plugin docker-compose-plugin || exit 1
+
+rm -rf /var/lib/apt/lists/* || exit 1