Switched to Alpine as base image.

Dockerfile

@@ -1,7 +1,33 @@
-FROM rust:latest
+FROM alpine:3.22
+#FROM rust:latest
 ENV TZ="Europe/Berlin"
 WORKDIR /root
 
+RUN apk add --no-cache alpine-sdk ca-certificates
+
+ENV RUSTUP_HOME=/usr/local/rustup \
+    CARGO_HOME=/usr/local/cargo \
+    PATH=/usr/local/cargo/bin:$PATH \
+    RUST_VERSION=1.87.0
+
+RUN set -eux; \
+    apkArch="$(apk --print-arch)"; \
+    case "$apkArch" in \
+        x86_64) rustArch='x86_64-unknown-linux-musl'; rustupSha256='e6599a1c7be58a2d8eaca66a80e0dc006d87bbcf780a58b7343d6e14c1605cb2' ;; \
+        aarch64) rustArch='aarch64-unknown-linux-musl'; rustupSha256='a97c8f56d7462908695348dd8c71ea6740c138ce303715793a690503a94fc9a9' ;; \
+        *) echo >&2 "unsupported architecture: $apkArch"; exit 1 ;; \
+    esac; \
+    url="https://static.rust-lang.org/rustup/archive/1.28.2/${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 --default-host ${rustArch}; \
+    rm rustup-init; \
+    chmod -R a+w $RUSTUP_HOME $CARGO_HOME; \
+    rustup --version; \
+    cargo --version; \
+    rustc --version;
+
 #RUN git clone --branch v1.1.0 --single-branch https://github.com/microsoft/edit.git edit
 #RUN cargo build --manifest-path /home/rust-docker/edit/Cargo.toml --profile dev
 #RUN cp /home/rust-docker/edit/target/release/edit /usr/bin/
@@ -18,12 +44,15 @@ RUN cp /root/helix/target/release/hx /usr/bin/
 #RUN cargo build --manifest-path /home/rust-docker/tgt/Cargo.toml --profile release --features download-tdlib
 #RUN cp /home/rust-docker/tgt/target/release/tgt /usr/bin/
 
-RUN apt update -y
+RUN apk update
-RUN apt dist-upgrade -y
+RUN apk upgrade --available
-RUN apt install -y apt-utils build-essential byobu git mc protobuf-compiler tmux vim zsh
+RUN apk add --no-cache bash mc openssh shadow tmux vim zsh zsh-vcs neovim
+
+#RUN apt update -y
+#RUN apt dist-upgrade -y
+#RUN apt install -y apt-utils build-essential byobu git mc protobuf-compiler tmux vim zsh
 
 RUN chsh -s /bin/zsh root
-
 RUN useradd -M -u 1000 -U -s /bin/zsh -d /home/hanez hanez
 RUN useradd -M -u 1001 -U -s /bin/bash -d /home/test test
 

README.md

@@ -1,9 +1,15 @@
 # My Hack Environment in a Docker Container
 
-The container actually is based on rust:latest which itself is based on Debian (Bookworm). Maybe I will switch to the Debian image, or better switch to an Alpine based image in the future. Actually I prefer the Debian image because it makes it more flexible to me because sometimes I need the GNU libc to compile programs.
+This container image is based on "alpine:3.22".
+
+Why Alpine? Because Alpine Linux is definitely the best Linux based operating system distribution I ever have used since 1999!
 
 Why the name "rusty"? Because it is based on some earlier Docker stuff I made for compiling Rust code... And rusty just sounds cool.
 
+It still includes a full Rust environment/SDK! You need to add "/usr/local/cargo/bin to" your $PATH if you want to make use of it; For user "root" it is done by Docker.
+
+Why Rust? Because I really like this language...
+
 My plan is to switch from Docker to native Linux Containers at some time but I am faster in building the prototype using Docker... ;)
 
 ## Prerequisites