diff --git a/.circleci/config.yml b/.circleci/config.yml
deleted file mode 100644
index c2c8719..0000000
--- a/.circleci/config.yml
+++ /dev/null
@@ -1,178 +0,0 @@
----
-version: 2.1
-
-executors:
-  golang:
-    description: >
-      Golang container executor
-    parameters:
-      version:
-        description: Go version
-        type: string
-      resource_class:
-        description: Resource class
-        type: string
-
-    resource_class: << parameters.resource_class >>
-    docker:
-    - image: circleci/golang:<< parameters.version >>
-
-commands:
-  setup_environment:
-    description: >
-      Setup the minimal environment for the CI.
-    steps:
-    - checkout
-    - run: make promu
-
-  setup_build_environment:
-    description: >
-      Setup the environment for building the container images.
-    steps:
-    - setup_environment
-    - setup_remote_docker:
-        version: 18.06.0-ce
-    - run: docker run --privileged linuxkit/binfmt:v0.6
-    - attach_workspace:
-        at: .
-
-  publish_images:
-    description: >
-      Build and publish images to a container image registry.
-    parameters:
-      registry:
-        description: Registry address
-        type: string
-      organization:
-        description: Registry organization
-        type: string
-      login_variable:
-        description: Environment variable holding the registry login
-        type: env_var_name
-      password_variable:
-        description: Environment variable holding the registry password
-        type: env_var_name
-
-    steps:
-    - run: make docker DOCKER_REPO=<< parameters.registry >>/<< parameters.organization >>
-    - run: docker images
-    - run: docker login -u $<< parameters.login_variable >> -p $<< parameters.password_variable >> << parameters.registry >>
-    - run: make docker-publish DOCKER_REPO=<< parameters.registry >>/<< parameters.organization >>
-    - run: make docker-manifest DOCKER_REPO=<< parameters.registry >>/<< parameters.organization >>
-
-  store_artifact:
-    description: >
-      Store a file as a build artifact.
-    parameters:
-      file:
-        description: source file
-        type: string
-      directory:
-        description: destination directory
-        type: string
-        default: /build
-
-    steps:
-    - store_artifacts:
-        path: << parameters.file >>
-        destination: << parameters.directory >>/<< parameters.file >>
-    - run: rm -v << parameters.file >>
-
-  publish_release_images:
-    description: >
-      Build and publish release images to a container image registry.
-    parameters:
-      registry:
-        description: Registry address
-        type: string
-      organization:
-        description: Registry organization
-        type: string
-      login_variable:
-        description: Environment variable holding the registry login
-        type: env_var_name
-      password_variable:
-        description: Environment variable holding the registry password
-        type: env_var_name
-
-    steps:
-    - run: make docker DOCKER_IMAGE_TAG="$CIRCLE_TAG" DOCKER_REPO=<< parameters.registry >>/<< parameters.organization >>
-    - run: docker images
-    - run: docker login -u $<< parameters.login_variable >> -p $<< parameters.password_variable >> << parameters.registry >>
-    - run: make docker-publish DOCKER_IMAGE_TAG="$CIRCLE_TAG" DOCKER_REPO=<< parameters.registry >>/<< parameters.organization >>
-    - run: make docker-manifest DOCKER_IMAGE_TAG="$CIRCLE_TAG" DOCKER_REPO=<< parameters.registry >>/<< parameters.organization >>
-    - run: |
-        if [[ "$CIRCLE_TAG" =~ ^v[0-9]+(\.[0-9]+){2}$ ]]; then
-          make docker-tag-latest DOCKER_IMAGE_TAG="$CIRCLE_TAG" DOCKER_REPO=<< parameters.registry >>/<< parameters.organization >>
-          make docker-publish DOCKER_IMAGE_TAG="latest" DOCKER_REPO=<< parameters.registry >>/<< parameters.organization >>
-          make docker-manifest DOCKER_IMAGE_TAG="latest" DOCKER_REPO=<< parameters.registry >>/<< parameters.organization >>
-        fi
-
-jobs:
-  build:
-    machine:
-      enabled: true
-
-    steps:
-    - setup_environment
-    - run: promu crossbuild -v
-    - persist_to_workspace:
-        root: .
-        paths:
-        - .build
-    - store_artifacts:
-        path: .build
-        destination: /build
-
-  publish_master:
-    docker:
-    - image: circleci/golang
-
-    steps:
-    - setup_build_environment
-    - publish_images:
-        registry: docker.io
-        organization: damoun
-        login_variable: DOCKER_LOGIN
-        password_variable: DOCKER_PASSWORD
-
-  publish_release:
-    docker:
-    - image: circleci/golang
-
-    steps:
-    - setup_build_environment
-    - run: promu crossbuild tarballs
-    - run: promu checksum .tarballs
-    - run: promu release .tarballs
-    - store_artifacts:
-        path: .tarballs
-        destination: releases
-    - publish_release_images:
-        registry: docker.io
-        organization: damoun
-        login_variable: DOCKER_LOGIN
-        password_variable: DOCKER_PASSWORD
-
-workflows:
-  version: 2
-  prometheus:
-    jobs:
-      - build:
-          filters:
-            tags:
-              only: /.*/
-      - publish_master:
-          requires:
-            - build
-          filters:
-            branches:
-              only: master
-      - publish_release:
-          requires:
-            - build
-          filters:
-            tags:
-              only: /^v[0-9]+(\.[0-9]+){2}(-.+|[^-.]*)$/
-            branches:
-              ignore: /.*/