Merge pull request #631 from chef/ruby27

Cache gem installs in testing + test on Ruby 2.7

.expeditor/run_linux_tests.sh

@@ -0,0 +1,53 @@
+#!/bin/bash
+#
+# This script runs a passed in command, but first setups up the bundler caching on the repo
+
+set -ue
+
+export USER="root"
+
+echo "--- dependencies"
+export LANG=C.UTF-8 LANGUAGE=C.UTF-8
+S3_URL="s3://public-cd-buildkite-cache/${BUILDKITE_PIPELINE_SLUG}/${BUILDKITE_LABEL}"
+
+pull_s3_file() {
+    aws s3 cp "${S3_URL}/$1" "$1" || echo "Could not pull $1 from S3"
+}
+
+push_s3_file() {
+    if [ -f "$1" ]; then
+        aws s3 cp "$1" "${S3_URL}/$1" || echo "Could not push $1 to S3 for caching."
+    fi
+}
+
+apt-get update -y
+apt-get install awscli -y
+
+echo "--- bundle install"
+pull_s3_file "bundle.tar.gz"
+pull_s3_file "bundle.sha256"
+
+if [ -f bundle.tar.gz ]; then
+  tar -xzf bundle.tar.gz
+fi
+
+if [ -n "${RESET_BUNDLE_CACHE:-}" ]; then
+    rm bundle.sha256
+fi
+
+bundle config --local path vendor/bundle
+bundle install --jobs=7 --retry=3
+
+echo "--- bundle cache"
+if test -f bundle.sha256 && shasum --check bundle.sha256 --status; then
+    echo "Bundled gems have not changed. Skipping upload to s3"
+else
+    echo "Bundled gems have changed. Uploading to s3"
+    shasum -a 256 Gemfile.lock > bundle.sha256
+    tar -czf bundle.tar.gz vendor/
+    push_s3_file bundle.tar.gz
+    push_s3_file bundle.sha256
+fi
+
+echo "+++ bundle exec task"
+bundle exec $1

.expeditor/update_version.sh

@@ -8,5 +8,5 @@ set -evx
 
 sed -i -r "s/^(\s*)VERSION = \".+\"/\1VERSION = \"$(cat VERSION)\"/" lib/knife-ec2/version.rb
 
-# Once Expeditor finshes executing this script, it will commit the changes and push
+# Once Expeditor finishes executing this script, it will commit the changes and push
 # the commit as a new tag corresponding to the value in the VERSION file.

.expeditor/verify.pipeline.yml

@@ -1,20 +1,25 @@
 ---
 
 steps:
+
 - label: run-specs-ruby-2.5
   command:
-    - bundle install --jobs=7 --retry=3 --without docs development
-    - bundle exec rake
+    - .expeditor/run_linux_tests.sh rake
   expeditor:
     executor:
       docker:
-        image: ruby:2.5-stretch
-
+        image: ruby:2.5-buster
 - label: run-specs-ruby-2.6
   command:
-    - bundle install --jobs=7 --retry=3 --without docs development
-    - bundle exec rake
+    - .expeditor/run_linux_tests.sh rake
+  expeditor:
+    executor:
+      docker:
+        image: ruby:2.6-buster
+- label: run-specs-ruby-2.7
+  command:
+    - .expeditor/run_linux_tests.sh rake
   expeditor:
     executor:
       docker:
-        image: ruby:2.6-stretch
+        image: ruby:2.7-buster