7 files changed, 97 insertions, 2 deletions
diff --git a/images/Makefile b/images/Makefile
index 9de359a28..278dec02f 100644
--- a/images/Makefile
+++ b/images/Makefile
@@ -59,9 +59,9 @@ local_image = $(LOCAL_IMAGE_PREFIX)/$(subst _,/,$(1))
 # we need to explicitly repull the base layer in order to ensure that the
 # architecture is correct. Note that we use the term "rebuild" here to avoid
 # conflicting with the bazel "build" terminology, which is used elsewhere.
+rebuild-%: FROM=$(shell grep FROM $(call path,$*)/Dockerfile } cut -d' ' -f2)
 rebuild-%: register-cross
-	FROM=$(shell grep FROM $(call path,$*)/Dockerfile | cut -d' ' -f2-) && \
-		docker pull $(DOCKER_PLATFORM_ARGS) $$FROM
+	$(foreach IMAGE,$(FROM),docker $(DOCKER_PLATFORM_ARGS) $(IMAGE); &&) true
 	T=$$(mktemp -d) && cp -a $(call path,$*)/* $$T && \
 		docker build $(DOCKER_PLATFORM_ARGS) -t $(call remote_image,$*) $$T && \
 		rm -rf $$T
diff --git a/images/benchmarks/ruby/Dockerfile b/images/benchmarks/ruby/Dockerfile
new file mode 100755
index 000000000..13c4f6eed
--- /dev/null
+++ b/images/benchmarks/ruby/Dockerfile
@@ -0,0 +1,27 @@
+# example based on https://github.com/errm/fib
+FROM alpine:3.9 as build
+
+COPY Gemfile Gemfile.lock ./
+
+RUN apk add --no-cache ruby ruby-dev ruby-bundler ruby-json build-base bash \
+        && bundle install --frozen -j4 -r3 --no-cache --without development \
+        && apk del --no-cache ruby-bundler \
+        && rm -rf /usr/lib/ruby/gems/*/cache
+
+FROM alpine:3.9 as prod
+
+COPY --from=build /usr/lib/ruby/gems /usr/lib/ruby/gems
+RUN apk add --no-cache ruby ruby-json ruby-etc redis apache2-utils \
+        && ruby -e "Gem::Specification.map.each do |spec| \
+      Gem::Installer.for_spec( \
+        spec, \
+        wrappers: true, \
+        force: true, \
+        install_dir: spec.base_dir, \
+        build_args: spec.build_args, \
+      ).generate_bin \
+    end"
+
+COPY . /app/.
+
+STOPSIGNAL SIGINT
diff --git a/images/benchmarks/ruby/Gemfile b/images/benchmarks/ruby/Gemfile
new file mode 100755
index 000000000..ac521b32c
--- /dev/null
+++ b/images/benchmarks/ruby/Gemfile
@@ -0,0 +1,5 @@
+source "https://rubygems.org"
+
+gem "sinatra"
+gem "puma"
+gem "redis"
+\ No newline at end of file
diff --git a/images/benchmarks/ruby/Gemfile.lock b/images/benchmarks/ruby/Gemfile.lock
new file mode 100644
index 000000000..041778e02
--- /dev/null
+++ b/images/benchmarks/ruby/Gemfile.lock
@@ -0,0 +1,26 @@
+GEM
+  remote: https://rubygems.org/
+  specs:
+    mustermann (1.0.3)
+    puma (3.4.0)
+    rack (2.0.6)
+    rack-protection (2.0.5)
+      rack
+    redis (4.1.0)
+    sinatra (2.0.5)
+      mustermann (~> 1.0)
+      rack (~> 2.0)
+      rack-protection (= 2.0.5)
+      tilt (~> 2.0)
+    tilt (2.0.9)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  puma
+  redis
+  sinatra
+
+BUNDLED WITH
+   1.17.1
+\ No newline at end of file
diff --git a/images/benchmarks/ruby/config.ru b/images/benchmarks/ruby/config.ru
new file mode 100755
index 000000000..b2d135cc0
--- /dev/null
+++ b/images/benchmarks/ruby/config.ru
@@ -0,0 +1,2 @@
+require './main'
+run Sinatra::Application
+\ No newline at end of file
diff --git a/images/benchmarks/ruby/index.erb b/images/benchmarks/ruby/index.erb
new file mode 100755
index 000000000..7f7300e80
--- /dev/null
+++ b/images/benchmarks/ruby/index.erb
@@ -0,0 +1,8 @@
+<!DOCTYPE html>
+<html>
+<body>
+    <% text.each do |t| %>
+        <p><%= t %></p>
+    <% end %>
+</body>
+</html>
diff --git a/images/benchmarks/ruby/main.rb b/images/benchmarks/ruby/main.rb
new file mode 100755
index 000000000..b998f004e
--- /dev/null
+++ b/images/benchmarks/ruby/main.rb
@@ -0,0 +1,27 @@
+require "sinatra"
+require "securerandom"
+require "redis"
+
+redis_host = ENV["HOST"]
+$redis = Redis.new(host: redis_host)
+
+def generateText
+    for i in 0..99
+        $redis.set(i, randomBody(1024))
+    end
+end
+
+def randomBody(length)
+    return SecureRandom.alphanumeric(length)
+end
+
+generateText
+template = ERB.new(File.read('./index.erb'))
+
+get "/" do
+    texts = Array.new
+    for i in 0..4
+        texts.push($redis.get(rand(0..99)))
+    end
+    template.result_with_hash(text: texts)
+end