Deploy to Cloud Foundry
In this how-to guide, you will learn how to configure CircleCI to deploy to Cloud Foundry.
Introduction
Cloud Foundry deployments require the Cloud Foundry CLI. Be sure to match the architecture to your Docker image (the commands below assume you are using a Debian-based image). This example pattern implements "Blue-Green" deployments using Cloud Foundry’s map-route/unmap-route commands, which is an optional feature above and beyond a basic cf push.
1. Install the CLI
- run:
name: Setup CF CLI
command: |
curl -v -L -o cf-cli_amd64.deb "https://cli.run.pivotal.io/stable?release=debian64&source=github"
sudo dpkg -i cf-cli_amd64.deb
cf -v
cf api https://api.run.pivotal.io # alternately target your private Cloud Foundry deployment
cf auth "$CF_USER" "$CF_PASSWORD"
cf target -o "$CF_ORG" -s "$CF_SPACE"2. Dark deployment
This example is the first step in a Blue-Green deployment, pushing the application to non-production routes.
- run:
name: CF Deploy
command: |
# push artifacts on "dark" subdomain, and set environment variables before running `cf start`.
cf push --no-start <app-name-dark> -f manifest.yml -p application.jar -n dark -d <example.com>
# Pass CircleCI variables to Cloud Foundry (optional)
cf set-env <app-name-dark> circle_build_num ${CIRCLE_BUILD_NUM}
cf set-env <app-name-dark> circle_commit ${CIRCLE_SHA1}
cf set-env <app-name-dark> circle_workflow_guid ${CIRCLE_WORKFLOW_ID}
cf set-env <app-name-dark> circle_user ${CIRCLE_PROJECT_USERNAME}
cf set-env <app-name-dark> circle_repo ${CIRCLE_PROJECT_REPONAME}
# Start the application
cf start <app-name-dark>
# Ensure dark route is exclusive to dark app
cf unmap-route <app-name> <example.com> -n dark || echo "Dark Route Already exclusive"3. Live deployment
Until now, the previously pushed "app-name" has not changed. The final step is to route the production URL to our dark application, stop traffic to the previous version, and rename the applications.
- run:
name: Re-route live Domain to latest
command: |
# Send "real" url to new version
cf map-route app-name-dark example.com -n www
# Stop sending traffic to previous version
cf unmap-route app-name example.com -n www
# stop previous version
cf stop app-name
# delete previous version
cf delete app-name -f
# Switch name of "dark" version to claim correct name
cf rename app-name-dark app-name4. Manual approval (optional)
For additional control or validation, you can add a manual "hold" step between the dark and live steps as shown in the sample workflow below.
workflows:
build-deploy:
jobs:
- test
- dark-deploy:
requires:
- test
filters:
branches:
only: main
- hold:
type: approval
requires:
- dark-deploy
filters:
branches:
only: main
- live-deploy:
requires:
- hold # manual approval required via the CircleCI UI to run the live-deploy job
filters:
branches:
only: main