add some examples

remove openssh deps
move devcontainer stuff to dedicated folder

.devcontainer/Dockerfile

@@ -0,0 +1,43 @@
+# Use an argument to specify the Ubuntu version, with a default
+ARG UBUNTU_VERSION=20.04
+
+# Use the specified Ubuntu version from the .env file
+FROM ubuntu:${UBUNTU_VERSION}
+
+ARG USER_NAME=developer
+ARG USER_HOME=/home/developer
+ARG PROJECT_NAME=rencfs
+
+ENV USER_NAME=${USER_NAME}
+ENV USER_HOME=${USER_HOME}
+ENV PROJECT_NAME=${PROJECT_NAME}
+
+ENV DEBIAN_FRONTEND=noninteractive
+
+RUN apt-get update && apt-get install -y \
+    sudo  \
+    git  \
+    curl \
+    gcc \
+    pkg-config \
+    build-essential \
+    libssl-dev \
+    fuse3
+
+RUN useradd -m -s /bin/bash -d ${USER_HOME} ${USER_NAME} \
+    && echo "${USER_NAME} ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/${USER_NAME} \
+    && chmod 0440 /etc/sudoers.d/${USER_NAME}
+
+# Switch to the new user
+USER ${USER_NAME}
+WORKDIR ${USER_HOME}
+
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+
+# Set the environment variables needed for Rust
+ENV PATH="${USER_HOME}/.cargo/bin:${PATH}"
+
+WORKDIR ${USER_HOME}/${PROJECT_NAME}
+
+# Command to keep the container running
+CMD ["sleep", "infinity"]

docker-compose.yml → .devcontainer/docker-compose.yml

@@ -1,7 +1,7 @@
 services:
   rencfs-development-environment:
     build:
-      context: .
+      context: ..
       dockerfile: Dockerfile
     image: local-rencfs-developer
     user: ${USER_NAME}

.gitignore

@@ -1,2 +1 @@
 /target
-.idea

Dockerfile

@@ -1,43 +1,36 @@
-# Use an argument to specify the Ubuntu version, with a default
-ARG UBUNTU_VERSION=20.04
+################
+##### Builder
+FROM alpine:3.16.0 as builder
 
-# Use the specified Ubuntu version from the .env file
-FROM ubuntu:${UBUNTU_VERSION}
+RUN apk add binutils build-base ca-certificates curl file g++ gcc make patch rust
 
-ARG USER_NAME=developer
-ARG USER_HOME=/home/developer
-ARG PROJECT_NAME=rencfs
-
-ENV USER_NAME=${USER_NAME}
-ENV USER_HOME=${USER_HOME}
-ENV PROJECT_NAME=${PROJECT_NAME}
-
-ENV DEBIAN_FRONTEND=noninteractive
+RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
 
-RUN apt-get update && apt-get install -y \
-    sudo  \
-    git  \
-    curl \
-    gcc \
-    pkg-config \
-    build-essential \
-    libssl-dev \
-    fuse3
+RUN . ~/.cargo/env && rustup target add x86_64-unknown-linux-musl
 
-RUN useradd -m -s /bin/bash -d ${USER_HOME} ${USER_NAME} \
-    && echo "${USER_NAME} ALL=(ALL) NOPASSWD: ALL" > /etc/sudoers.d/${USER_NAME} \
-    && chmod 0440 /etc/sudoers.d/${USER_NAME}
+# Cache downloaded+built dependencies
+#COPY Cargo.toml Cargo.lock /usr/src/rencfs/
+#RUN mkdir /usr/src/rencfs/src && \
+#    echo 'fn main() {}' > /usr/src/rencfs/src/main.rs
+#
+#RUN . ~/.cargo/env && cd /usr/src/rencfs/ && cargo build --release && \
+#    rm -Rvf /usr/src/rencfs/src
 
-# Switch to the new user
-USER ${USER_NAME}
-WORKDIR ${USER_HOME}
+# Build our actual code
+COPY Cargo.toml Cargo.lock /usr/src/rencfs/
+COPY src /usr/src/rencfs/src
+RUN . ~/.cargo/env &&  \
+    cd /usr/src/rencfs/ &&  \
+    cargo build --target x86_64-unknown-linux-musl --release
 
-RUN curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh -s -- -y
+################
+##### Runtime
+FROM alpine:3.16.0 AS runtime
 
-# Set the environment variables needed for Rust
-ENV PATH="${USER_HOME}/.cargo/bin:${PATH}"
+RUN apk add fuse3
 
-WORKDIR ${USER_HOME}/${PROJECT_NAME}
+# Copy application binary from builder image
+COPY --from=builder /usr/src/rencfs/target/x86_64-unknown-linux-musl/release/rencfs /usr/local/bin
 
-# Command to keep the container running
-CMD ["sleep", "infinity"]
+# Run the application
+CMD ["rencfs", "--help"]