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  • cimg/elixir
  • Getting Started
  • How This Image Works
  • Image Tags
  • Variants
    • Node.js
    • Browsers
  1. Convenience Images
  2. cimg/elixir



This image is designed to supercede the legacy CircleCI Elixir image, circleci/elixir.

cimg/elixir is a Docker image created by CircleCI with continuous integration builds in mind. Each tag contains a complete Elixir installation for use with mix and hex.

Getting Started

This image can be used with the CircleCI docker executor. For example:

1 2 3 4 5 6 7 8 9 jobs: build: docker: - image: cimg/elixir:1.16.0 steps: - checkout - run: mix --version - run: mix deps.get - run: mix test

In the above example, the CircleCI Elixir Docker image is used as the primary container. More specifically, the tag 1.16.0 is used meaning the version of elixir will be v1.16.0. You can now use mix within the steps for this job.

How This Image Works

This image contains both Elixir as well as a supported version of Erlang.

Tagging Scheme

This image has the following tagging schemes:

Standard scheme will point to the default version of Erlang, which is currently 25.0


Optional Erlang version tagging scheme:


<elixir-version> - The version of Elixir to use. This can be a full SemVer point release (such as 1.10.2) or just the minor release (such as 1.10). If you use the minor release tag, it will automatically point to future patch updates as they are released by the Elixir project. For example, the tag 1.10 points to elixir 1.10.2 now, but when the next release comes out, it will point to 1.10.3.

<erlang-version> - The version of Erlang to use. This will be a major.minor version per Erlang's own naming convention (like 25.0)

[-variant] - Variant tags, if available, can optionally be used. For example, the Node.js variant can be used like this: cimg/elixir:1.10.1-node.

Image Tags


Variant images typically contain the same base software, but with a few additional modifications.


The Node.js variant is the same Elixir image but with Node.js also installed. The Node.js variant can be used by appending -node to the end of an existing cimg/elixir tag.

1 2 3 4 5 6 7 8 jobs: build: docker: - image: cimg/elixir:1.16.0-node steps: - checkout - run: mix --version - run: node --version


The browsers variant is the same Elixir image but with Node.js, Selenium, and browser dependencies pre-installed via apt. The browsers variant can be used by appending -browser to the end of an existing cimg/elixir tag. The browsers variant is designed to work in conjunction with the CircleCI Browser Tools orb. You can use the orb to install a version of Google Chrome and/or Firefox into your build. The image contains all of the supporting tools needed to use both the browser and its driver.

1 2 3 4 5 6 7 8 9 10 11 12 13 14 orbs: browser-tools: circleci/browser-tools@1.1 jobs: build: docker: - image: cimg/elixir:1.11-browsers steps: - browser-tools/install-browser-tools - checkout - run: | mix --version node --version java --version google-chrome --version
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