openstack-helm/doc/source/install/developer/kubernetes-and-common-setup.rst

Kubernetes and Common Setup

Install Basic Utilities

To get started with OSH, we will need git, curl and make.

sudo apt install git curl make

Clone the OpenStack-Helm Repos

Once the host has been configured the repos containing the OpenStack-Helm charts should be cloned:

#!/bin/bash
set -xe

git clone https://opendev.org/openstack/openstack-helm-infra.git
git clone https://opendev.org/openstack/openstack-helm.git

OSH Proxy & DNS Configuration

Note

If you are not deploying OSH behind a proxy, skip this step and continue with "Deploy Kubernetes & Helm".

In order to deploy OSH behind a proxy, add the following entries to openstack-helm-infra/tools/gate/devel/local-vars.yaml:

proxy:
  http: http://PROXY_URL:PORT
  https: https://PROXY_URL:PORT
  noproxy: 127.0.0.1,localhost,172.17.0.1,.svc.cluster.local

Note

Depending on your specific proxy, https_proxy may be the same as http_proxy. Refer to your specific proxy documentation.

By default OSH will use Google DNS Server IPs (8.8.8.8, 8.8.4.4) and will update resolv.conf as a result. If those IPs are blocked by your proxy, running the OSH scripts will result in the inability to connect to anything on the network. These DNS nameserver entries can be changed by updating the external_dns_nameservers entry in the file openstack-helm-infra/tools/images/kubeadm-aio/assets/opt/playbooks/vars.yaml.

external_dns_nameservers:
  - YOUR_PROXY_DNS_IP
  - ALT_PROXY_DNS_IP

These values can be retrieved by running:

systemd-resolve --status

Deploy Kubernetes & Helm

You may now deploy kubernetes, and helm onto your machine, first move into the openstack-helm directory and then run the following:

../../../../tools/deployment/developer/common/010-deploy-k8s.sh

Alternatively, this step can be performed by running the script directly:

./tools/deployment/developer/common/010-deploy-k8s.sh

This command will deploy a single node KubeADM administered cluster. This will use the parameters in ${OSH_INFRA_PATH}/playbooks/vars.yaml to control the deployment, which can be over-ridden by adding entries to ${OSH_INFRA_PATH}/tools/gate/devel/local-vars.yaml.

Helm Chart Installation

Using the Helm packages previously pushed to the local Helm repository, run the following commands to instruct tiller to create an instance of the given chart. During installation, the helm client will print useful information about resources created, the state of the Helm releases, and whether any additional configuration steps are necessary.

Install OpenStack-Helm

Note

The following commands all assume that they are run from the openstack-helm directory and the repos have been cloned as above.

Setup Clients on the host and assemble the charts

The OpenStack clients and Kubernetes RBAC rules, along with assembly of the charts can be performed by running the following commands:

../../../../tools/deployment/developer/common/020-setup-client.sh

Alternatively, this step can be performed by running the script directly:

./tools/deployment/developer/common/020-setup-client.sh

Deploy the ingress controller

../../../../tools/deployment/component/common/ingress.sh

Alternatively, this step can be performed by running the script directly:

./tools/deployment/component/common/ingress.sh

To continue to deploy OpenStack on Kubernetes via OSH, see Deploy NFS<./deploy-with-nfs> or Deploy Ceph<./deploy-with-ceph>.