adds docker image

Signed-off-by: Jochen maes <jochen@sejo-it.be>

.drone.yml

@@ -0,0 +1,20 @@
+---
+kind: pipeline
+type: docker
+name: docker-task-rust
+
+platform:
+  arch: amd64
+
+steps:
+  - name: docker build
+    image: plugins/docker
+    settings:
+      username: sejo
+      password:
+        from_secret: gitea_token
+      registry: https://gitea.sejo-it.be
+      repo: sejo-it/drone-task-rust
+      tags:
+        - latest
+        - master  

Dockerfile

@@ -0,0 +1,27 @@
+# Base image. Change this to use another Rust version.
+FROM rust:1.73-slim
+
+# Install Docker (for docker-in-docker)
+RUN apt-get update \
+ && apt-get install -y ca-certificates curl gnupg \
+ && mkdir -p /etc/apt/keyrings \
+ && curl -fsSL https://download.docker.com/linux/debian/gpg | gpg --dearmor -o /etc/apt/keyrings/docker.gpg \
+ && echo "deb [arch=$(dpkg --print-architecture) signed-by=/etc/apt/keyrings/docker.gpg] https://download.docker.com/linux/debian bullseye stable" >> /etc/apt/sources.list.d/docker.list \
+ && apt-get update \
+ && apt-get install -y docker-ce-cli \
+ && apt-get clean
+
+# Install cross v0.2.4
+RUN mkdir -p /usr/local/cargo/bin && curl -L https://github.com/cross-rs/cross/releases/download/v0.2.4/cross-x86_64-unknown-linux-gnu.tar.gz | tar -xz -C /usr/local/cargo/bin
+
+# (Optional) Pre-install rust targets
+# This significantly reduces build time, at the cost of an increased image size
+RUN rustup target add \
+        aarch64-unknown-linux-gnu \
+        aarch64-unknown-linux-musl \
+        x86_64-unknown-linux-gnu \
+        x86_64-unknown-linux-musl \
+    && rustup component add --target aarch64-unknown-linux-gnu rust-src \
+    && rustup component add --target aarch64-unknown-linux-musl rust-src \
+    && rustup component add --target x86_64-unknown-linux-gnu rust-src \
+    && rustup component add --target x86_64-unknown-linux-musl rust-src