From 9c103dfa1c112076e66a6b9144d685822d48e943 Mon Sep 17 00:00:00 2001
From: Sean McArthur <sean@seanmonstar.com>
Date: Mon, 30 Mar 2020 15:08:17 -0700
Subject: [PATCH] Add docker CI

---
 .travis.yml           | 16 +++++++++++++++-
 ci/cgroups/Dockerfile |  9 +++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100644 ci/cgroups/Dockerfile

diff --git a/.travis.yml b/.travis.yml
index 4953546..cec6ddb 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -1,7 +1,9 @@
 language: rust
 rust: stable
-dist: trusty
+dist: xenial
 sudo: false
+notifications:
+  email: disabled
 
 cache: cargo
 
@@ -65,3 +67,15 @@ matrix:
     - env: TARGET=x86_64-unknown-netbsd
     # Emscripten
     - env: TARGET=asmjs-unknown-emscripten
+
+    # CGroups in Docker
+    - name: Docker CGroups
+      install:
+      script:
+      - docker build -f ci/cgroups/Dockerfile -t num-cpus-cgroups .
+      # Test without cgroups
+      - docker run -it -e NUM_CPUS_TEST_GET=2 num-cpus-cgroups
+      # Only 1 CPU
+      - docker run -it --cpus="1" -e NUM_CPUS_TEST_GET=1 num-cpus-cgroups
+      # 1.5 CPUs
+      - docker run -it --cpus="1.5" -e NUM_CPUS_TEST_GET=2 num-cpus-cgroups
diff --git a/ci/cgroups/Dockerfile b/ci/cgroups/Dockerfile
new file mode 100644
index 0000000..d5f288a
--- /dev/null
+++ b/ci/cgroups/Dockerfile
@@ -0,0 +1,9 @@
+FROM rust:1.40
+
+WORKDIR /usr/num_cpus
+
+COPY . .
+
+RUN cargo build
+
+CMD [ "cargo", "test", "--lib" ]