CircleCI environmental variables for HEROKU not being set properly causing GIT to fail

Question

I am a CircleCI user, and I am setting up an integration with Heroku.

I want to do the following, and setup security with integrations with dockerHub and also to Heroku from the CircleCI portal page, using this config.yml file.

The problem is that CircleCI doesn't seem to know what these variables should be set to, and instead just echos.

${HEROKU_API_KEY} ${HEROKU_APP}

config.yml

---

version: 2 jobs: build:

working_directory: ~/springboot_swagger_example-master-cassandra

docker:
  - image: circleci/openjdk:8-jdk-browsers

steps:

  - checkout

  - restore_cache:
      key: springboot_swagger_example-master-cassandra-{{ checksum "pom.xml" }}

  - run: mvn dependency:go-offline

  - save_cache:
      paths:
        - ~/.m2
      key: springboot_swagger_example-master-cassandra-{{ checksum "pom.xml" }}

  - type: add-ssh-keys
  - type: deploy
    name: "Deploy to Heroku"
    command: |
      if [ "${CIRCLE_BRANCH}" == "master" ]; then
        # Install Heroku fingerprint (this is heroku's own key, NOT any of your private or public keys)
        echo 'heroku.com ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAu8erSx6jh+8ztsfHwkNeFr/SZaSOcvoa8AyMpaerGIPZDB2TKNgNkMSYTLYGDK2ivsqXopo2W7dpQRBIVF80q9mNXy5tbt1WE04gbOBB26Wn2hF4bk3Tu+BNMFbvMjPbkVlC2hcFuQJdH4T2i/dtauyTpJbD/6ExHR9XYVhdhdMs0JsjP/Q5FNoWh2ff9YbZVpDQSTPvusUp4liLjPfa/i0t+2LpNCeWy8Y+V9gUlDWiyYwrfMVI0UwNCZZKHs1Unpc11/4HLitQRtvuk0Ot5qwwBxbmtvCDKZvj1aFBid71/mYdGRPYZMIxq1zgP1acePC1zfTG/lvuQ7d0Pe0kaw==' >> ~/.ssh/known_hosts
        # git push git@heroku.com:yourproject.git $CIRCLE_SHA1:refs/heads/master
        # Optional post-deploy commands
        # heroku run python manage.py migrate --app=my-heroku-project
      fi          

  - run: mvn package

  - run:
      name: Install Docker client
      command: |
        set -x
        VER="17.03.0-ce"
        curl -L -o /tmp/docker-$VER.tgz https://get.docker.com/builds/Linux/x86_64/docker-$VER.tgz
        tar -xz -C /tmp -f /tmp/docker-$VER.tgz
        mv /tmp/docker/* /usr/bin
  - run:
     name: Build Docker image
     command: docker build -t joethecoder2/spring-boot-web:$CIRCLE_SHA1 .

  - run:
      name: Push to DockerHub
      command: |
        docker login -u$DOCKERHUB_LOGIN -p$DOCKERHUB_PASSWORD
        docker push joethecoder2/spring-boot-web:$CIRCLE_SHA1

  - run:
      name: Setup Heroku
      command: |
        curl https://cli-assets.heroku.com/install-ubuntu.sh | sh
        chmod +x .circleci/setup-heroku.sh
        .circleci/setup-heroku.sh
  - run:
      name: Deploy to Heroku
      command: |
        mkdir app
        cd app/ 
        heroku create 
        # git push https://heroku:$HEROKU_API_KEY@git.heroku.com/$HEROKU_APP.git master
        echo ${HEROKU_API_KEY}
        echo ${HEROKU_APP}
        git push https://heroku:${HEROKU_API_KEY}@git.heroku.com/${HEROKU_APP}.git master

  - store_test_results:
      path: target/surefire-reports

  - store_artifacts:
      path: target/spring-boot-web-0.0.1-SNAPSHOT.jar

---

The problem is that CircleCI doesn't seem to know what these variables should be set to, and instead just echos.

${HEROKU_API_KEY} ${HEROKU_APP}

The question, and problem is why aren't these settings being detected automatically?

Answer 1

You need to set the value for the variables: https://circleci.com/docs/2.0/env-vars/

They are being echo'd because you're echoing them.

echo ${HEROKU_API_KEY}
echo ${HEROKU_APP}