Update emailservice Dockerfile to use alpine and multistage build (#703)

* Update emailservice Dockerfile Signed-off-by: svrnm <neumanns@cisco.com> * Use alpine Signed-off-by: svrnm <neumanns@cisco.com> * Add changelog Signed-off-by: svrnm <neumanns@cisco.com> * newline Signed-off-by: svrnm <neumanns@cisco.com> * Update CHANGELOG.md * Update .dockerignore Signed-off-by: svrnm <neumanns@cisco.com> Co-authored-by: Juliano Costa <julianocosta89@outlook.com>
open-telemetry · Jan 24, 2023 · c1591d3 · c1591d3
1 parent 842a11a
commit c1591d3
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diff --git a/CHANGELOG.md b/CHANGELOG.md
@@ -202,3 +202,5 @@ significant modifications will be credited to OpenTelemetry Authors.
 ([#700](https://github.com/open-telemetry/opentelemetry-demo/pull/700))
 * Reduce spans generated from quote service
 ([#702](https://github.com/open-telemetry/opentelemetry-demo/pull/702))
+* Update emailservice Dockerfile to use alpine and multistage build
+([#703](https://github.com/open-telemetry/opentelemetry-demo/pull/703))
diff --git a/src/emailservice/.dockerignore b/src/emailservice/.dockerignore
@@ -0,0 +1 @@
+README.md
diff --git a/src/emailservice/Dockerfile b/src/emailservice/Dockerfile
@@ -1,13 +1,23 @@
-FROM ruby:3.1.2-slim
+FROM ruby:3.1.2-alpine as base
 
-RUN apt-get update -y && apt-get install -y build-essential
+FROM base as builder
+
+WORKDIR /tmp
+
+COPY Gemfile Gemfile.lock .
+
+RUN apk update && apk add make gcc musl-dev && bundle install
+
+FROM base as release
 
 WORKDIR /email_server
 
 COPY . .
 
-RUN bundle install
 RUN chmod 666 ./Gemfile.lock
 
+COPY --from=builder /usr/local/bundle/ /usr/local/bundle/
+
+
 EXPOSE ${EMAIL_SERVICE_PORT}
 ENTRYPOINT ["bundle", "exec", "ruby", "email_server.rb"]