Example of workflow based/parallel CircleCI build and deploy to Netlify conig

config.yaml

aliases:
  - &deps
      - "Dependencies"
  - &allSites
      - "reactSummit"
      - "JSNation"
      - "JSNationLive"
      - "NodeDayUK"
  - &dependencies
      - checkout

      # Download and cache dependencies
      - restore_cache:
          keys:
          - v1-dependencies-{{ checksum "frontend/yarn.lock" }}

      - run:
          name: install dependencies
          command: |
            if [ ! -d "frontend/node_modules" ]; then
              cd frontend && yarn install
            fi

      - save_cache:
          paths:
            - frontend/node_modules
          key: v1-dependencies-{{ checksum "frontend/yarn.lock" }}

      - persist_to_workspace:
          root: .
          paths:
            - frontend
            - netlify.toml

version: 2

workflows:
  version: 2
  buildBrands:
    jobs:
      - "Dependencies"
      - reactSummit:
          requires: *deps
          filters:
            branches:
              only:
                - master

      - JSNation:
          requires: *deps
          filters:
            branches:
              only:
                - master

      - JSNationLive:
          requires: *deps
          filters:
            branches:
              only:
                - master

      - NodeDayUK:
          requires: *deps
          filters:
            branches:
              only:
                - master

      - deployAllBrandsToNetlify:
          requires: *allSites
          filters:
            branches:
              only:
                - master

jobs:
  "Dependencies":
    docker:
      - image: circleci/node:10

    steps: *dependencies

  reactSummit:
    docker:
      - image: circleci/node:10

    steps:
      - attach_workspace:
          at: .

      - run:
          name: build website
          command: cd frontend && BRAND_NAME=reactSummit yarn build

      - persist_to_workspace:
          root: .
          paths:
            - frontend/build/reactSummit

  JSNation:
    docker:
      - image: circleci/node:10

    steps:
      - attach_workspace:
          at: .

      - run:
          name: build website
          command: cd frontend && BRAND_NAME=JSNation yarn build

      - persist_to_workspace:
          root: .
          paths:
            - frontend/build/JSNation

  JSNationLive:
    docker:
      - image: circleci/node:10

    steps:
      - attach_workspace:
          at: .

      - run:
          name: build website
          command: cd frontend && BRAND_NAME=JSNationLive yarn build

      - persist_to_workspace:
          root: .
          paths:
            - frontend/build/JSNationLive

  NodeDayUK:
    docker:
      - image: circleci/node:10

    steps:
      - attach_workspace:
          at: .

      - run:
          name: build website
          command: cd frontend && BRAND_NAME=NodeDayUK yarn build

      - persist_to_workspace:
          root: .
          paths:
            - frontend/build/NodeDayUK

  deployAllBrandsToNetlify:
    docker:
      - image: circleci/node:10

    steps:
      - attach_workspace:
          at: .

      - run:
          name: prepare redirects
          command: cd frontend && ls && cp _redirects build/

      - run:
          name: deploy to netlify
          command: |
            cd frontend
            yarn netlify deploy --auth $NETLIFY_AUTH_TOKEN --prod --site $NETLIFY_SITE_DEV

  # This command is being only called directly via API referencing this job
  buildAndDeployAllBrandsToNetlify:
    docker:
      - image: circleci/node:10

    steps:
      - checkout

      # Download and cache dependencies
      - restore_cache:
          keys:
          - v1-dependencies-{{ checksum "frontend/yarn.lock" }}

      - run:
          name: install dependencies
          command: |
            if [ ! -d "frontend/node_modules" ]; then
              cd frontend && yarn install
            fi

      - save_cache:
          paths:
            - frontend/node_modules
          key: v1-dependencies-{{ checksum "frontend/yarn.lock" }}

      - run:
          name: build all brands
          command: cd frontend && yarn concurrently "BRAND_NAME=JSNation yarn build" "BRAND_NAME=JSNationLive yarn build" "BRAND_NAME=reactSummit yarn build" "BRAND_NAME=NodeDayUK yarn build"

      - run:
          name: prepare redirects
          command: cd frontend && ls && cp _redirects build/

      - run:
          name: deploy to netlify
          command: |
            cd frontend
            yarn netlify deploy --auth $NETLIFY_AUTH_TOKEN --prod --site $NETLIFY_SITE_PROD
            curl -X POST -H 'Content-type: application/json' --data '{"text":"All sponsor proposals have been updated on production '$CIRCLE_BUILD_URL'"}' $SLACK_CMS_UPDATE_WEBHOOK