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This article instructs on how to create a DaemonSet in order to run Breeze agent on every node of cloud-managed Kubernetes cluster (Amazon EKS, Azure AKS, Google GKE). This allows to get the agent data from the cluster in Cloudaware CMDB.

Description

DaemonSet starts the container with Breeze agent installer. The container has two bind mounts:

  • host:/opt > container:/opt - used for the Breeze agent installation from container to the host file system

  • host:/ > container:/var/root - used for launching the agent in the chroot environment

The container runs two commands:

  1. Install the Breeze agent to the /opt directory

  2. Run the simple daemon which runs the Breeze agent every 15 minutes

  1. git clone

  2. download breeze installer from ca org

  3. untar breeze installer and copy the extracted files (./breeze-agent folder) to kubernetes/daemonset folder of the cloned repo (edited) 

  4. cd ./kubernetes/daemonset && docker build -t ca-breeze-ds . (edited) 

  5. You need to upload the result image to your private container registry

Create a repository in your private container registry (e.g. AWS ECR, Google GCR, etc.) named ca-breeze-ds
docker tag ca-breeze-ds:latest <CONTAINER_REGISTRY_HOSTNAME>/ca-breeze-ds:latest
docker push <CONTAINER_REGISTRY_HOSTNAME>/ca-breeze-ds:latest 

6. Edit the DaemonSet configuration file ds-breeze-agent.yaml, replace placeholders (make sure image pull secret is added to kubernetes secrets)

7. kubectl create -f ds-breeze-agent.yaml

8. to verify that the daemonset has been created you may run the following command:

kubectl get ds

9. data in CA

Create Docker Image

1. Download the Breeze agent installer and unpack it to the current directory:

wget breeze-agent.example.version.0.x86_64.linux.tgz
tar xvzf breeze-agent.example.version.0.x86_64.linux.tgz

2. Build the Docker image:

docker build -t IMAGE_NAME .

3. Push the image to your private Docker container registry:

docker tag IMAGE_NAME:latest DOCKER_SERVER_HOSTNAME/IMAGE_NAME:latest
docker push IMAGE_NAME:latest DOCKER_SERVER_HOSTNAME/IMAGE_NAME:latest

Run DaemonSet

1. Edit the DaemonSet configuration file ds-breeze-agent.yaml and replace the following placeholders with valid values:

  • DOCKER_SERVER_HOSTNAME

  • IMAGE_NAME

  • DOCKER_SERVER_SECRETS

2. Create the new DaemonSet:

kubectl create -f ds-breeze-agent.yaml

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