Add a jessie-slim image

Author: sfackler

.travis.yml

@@ -4,6 +4,7 @@ services: docker
 env:
   - VERSION=1.25.0 VARIANT=stretch/slim
   - VERSION=1.25.0 VARIANT=stretch
+  - VERSION=1.25.0 VARIANT=jessie/slim
   - VERSION=1.25.0 VARIANT=jessie
 
 install:

1.25.0/jessie/slim/Dockerfile

@@ -0,0 +1,41 @@
+FROM debian:jessie-slim
+
+ENV RUSTUP_HOME=/usr/local/rustup \
+    CARGO_HOME=/usr/local/cargo \
+    PATH=/usr/local/cargo/bin:$PATH \
+    RUST_VERSION=1.25.0
+
+RUN set -eux; \
+    apt-get update; \
+    apt-get install -y --no-install-recommends \
+        ca-certificates \
+        gcc \
+        libc6-dev \
+        wget \
+        ; \
+    \
+# this "case" statement is generated via "update.sh"
+    dpkgArch="$(dpkg --print-architecture)"; \
+    case "${dpkgArch##*-}" in \
+        amd64) rustArch='x86_64-unknown-linux-gnu'; rustupSha256='c9837990bce0faab4f6f52604311a19bb8d2cde989bea6a7b605c8e526db6f02' ;; \
+        armhf) rustArch='armv7-unknown-linux-gnueabihf'; rustupSha256='297661e121048db3906f8c964999f765b4f6848632c0c2cfb6a1e93d99440732' ;; \
+        arm64) rustArch='aarch64-unknown-linux-gnu'; rustupSha256='a68ac2d400409f485cb22756f0b3217b95449884e1ea6fd9b70522b3c0a929b2' ;; \
+        i386) rustArch='i686-unknown-linux-gnu'; rustupSha256='27e6109c7b537b92a6c2d45ac941d959606ca26ec501d86085d651892a55d849' ;; \
+        *) echo >&2 "unsupported architecture: ${dpkgArch}"; exit 1 ;; \
+    esac; \
+    \
+    url="https://static.rust-lang.org/rustup/archive/1.11.0/${rustArch}/rustup-init"; \
+    wget "$url"; \
+    echo "${rustupSha256} *rustup-init" | sha256sum -c -; \
+    chmod +x rustup-init; \
+    ./rustup-init -y --no-modify-path --default-toolchain $RUST_VERSION; \
+    rm rustup-init; \
+    chmod -R a+w $RUSTUP_HOME $CARGO_HOME; \
+    rustup --version; \
+    cargo --version; \
+    rustc --version; \
+    \
+    apt-get remove -y --auto-remove \
+        wget \
+        ; \
+    rm -rf /var/lib/apt/lists/*;