More “Distroless” Docker Images

From GoogleContainerTools/distroless:

“Distroless” images contain only your application and its runtime dependencies.
They do not contain package managers, shells or any other programs you would expect to find in a standard Linux distribution.

Docker

Docker multi-stage builds make using distroless images easy.
Follow these steps to get started:

• Pick the right base image for your application stack.

  • [docker.io/lestienne/distroless-ruby]

• Write a multi-stage docker file.
  Note: This requires Docker 17.05 or higher.

Examples with Docker

Here’s a quick example for go:

  # Start by building the application.
  FROM ruby:2.6.1 as build
  WORKDIR /ruby/app
  COPY . .
  RUN bundle _2.0.1_ install --system --no-deployment --gemfile=/ruby/app/Gemfile && \
    bundle _2.0.1_ check
  # Now copy it into our base image.
  FROM lestienne/distroless-ruby:2.6.1
  COPY --from=build /ruby/app /
  CMD ["/app"]

For more documentation, see GoogleContainerTools/distroless