!! Warning !!

It's not recommended to run the code in this repo locally on your personal machine, as it makes some opinionated configuration changes to the machine it's running on

Test-Infra

This project deploys the OpenShift Assisted Installer in Minikube and spawns libvirt VMs that represent bare metal hosts.

Table of contents

• !! Warning !!
• Test-Infra
  • Prerequisites
  • Installation Guide
  • Deployment parameters
    • Components
    • Deployment config
    • Cluster configmap
  • Installation parameters
  • Vsphere parameters
  • Instructions
    • Host preparation
  • Usage
  • Adding a new e2e flow
  • Full flow cases
    • Run full flow with install
    • Run full flow without install
    • Run full flow with ipv6
    • Redeploy nodes
    • Cleaning
      • Clean all include minikube
      • Clean nodes only
      • Delete all virsh resources
    • Create cluster and download ISO
    • Deploy Assisted Service and Monitoring stack
    • deploy_assisted_service and Create cluster and download ISO
    • start_minikube and Deploy UI and open port forwarding on port 6008, allows to connect to it from browser
    • Kill all open port forwarding commands, will be part of destroy target
  • Test assisted-service image
    • Test agent image
    • Test installer image or controller image
  • Test installer, controller, assisted-service and agent images in the same flow
    • Test infra image
  • In case you would like to build the image with a different assisted-service client
  • Test with RHSSO Authentication
  • Single Node - Bootstrap in place with Assisted Service
  • Single Node - Bootstrap in place with Assisted Service and IPv6
  • Kind
  • On-prem
  • Run operator
  • Cluster-API-provider-agent
  • Test iPXE boot flow

Prerequisites

• CentOS 8 / RHEL 8 / Rocky 8 / AlmaLinux 8 host
• File system that supports d_type
• Ideally on a bare metal host with at least 64G of RAM.
• Run as a user with password-less sudo access or be ready to enter sudo password for prepare phase.
• Make sure to unset the KUBECONFIG variable in the same shell where you run make.
• Get a valid pull secret (JSON string) from redhat.com if you want to test the installation (not needed for testing only the discovery flow). Export it as:

export PULL_SECRET='<pull secret JSON>'
# or alternatively, define PULL_SECRET_FILE="/path/to/pull/secret/file"

Installation Guide

Check the Installation Guide for installation instructions.

Deployment parameters

Components

AGENT_DOCKER_IMAGE	agent docker image to use, will update assisted-service config map with given value
INSTALLER_IMAGE	assisted-installer image to use, will update assisted-service config map with given value
SERVICE	assisted-service image to use
SERVICE_BRANCH	assisted-service branch to use, default: master
SERVICE_BASE_REF	assisted-service base reference to merge SERVICE_BRANCH with, default: master
SERVICE_REPO	assisted-service repository to use, default: https://github.com/openshift/assisted-service

Deployment config

ASSISTED_SERVICE_HOST	FQDN or IP address to where assisted-service is deployed. Used when DEPLOY_TARGET="onprem".
DEPLOY_MANIFEST_PATH	the location of a manifest file that defines image tags images to be used
DEPLOY_MANIFEST_TAG	the Git tag of a manifest file that defines image tags to be used
DEPLOY_TAG	the tag to be used for all images (assisted-service, assisted-installer, agent, etc) this will override any other os parameters
DEPLOY_TARGET	Specifies where assisted-service will be deployed. Defaults to "minikube". Other options are "onprem" for installing as a podman pod and "kind".
KUBECONFIG	kubeconfig file path, default: /.kube/config
SERVICE_NAME	assisted-service target service name, default: assisted-service

Cluster configmap

BASE_DNS_DOMAINS	base DNS domains that are managed by assisted-service, format: domain_name:domain_id/provider_type.
AUTH_TYPE	configure the type of authentication assisted-service will use, default: none
IPv4	Boolean value indicating if IPv4 is enabled. Default is yes
IPv6	Boolean value indicating if IPv6 is enabled. Default is no
STATIC_IPS	Boolean value indicating if static networking should be enabled. Default is no
OCM_BASE_URL	OCM API URL used to communicate with OCM and AMS, default: https://api.integration.openshift.com/
OCM_CLIENT_ID	ID of Service Account used to communicate with OCM and AMS for Agent Auth and Authz
OCM_CLIENT_SECRET	Password of Service Account used to communicate with OCM and AMS for Agent Auth and Authz
OC_MODE	if set, use oc instead of minikube
OC_SCHEME	Scheme for assisted-service url on oc, default: http
OC_SERVER	server for oc login, required if oc-token is provided, default: https://api.ocp.prod.psi.redhat.com:6443
OC_TOKEN	token for oc login (an alternative for oc-user & oc-pass)
OFFLINE_TOKEN	token used to fetch JWT tokens for assisted-service authentication (from https://cloud.redhat.com/openshift/token)
PROXY	Set HTTP and HTTPS proxy with default proxy targets. The target is the default gateway in the network having the machine network CIDR
SERVICE_BASE_URL	update assisted-service config map SERVICE_BASE_URL parameter with given URL, including port and protocol
PUBLIC_CONTAINER_REGISTRIES	comma-separated list of registries that do not require authentication for pulling assisted installer images
ENABLE_KUBE_API	If set, deploy assisted-service with Kube API controllers (minikube only)
DISABLED_HOST_VALIDATIONS	comma-separated list of validation IDs to be excluded from the host validation process.
SSO_URL	URL used to fetch JWT tokens for assisted-service authentication
CHECK_CLUSTER_VERSION	If "True", the controller will wait for CVO to finish
AGENT_TIMEOUT_START	Update assisted-service config map AGENT_TIMEOUT_START parameter. Default is 3m.
OS_IMAGES	A list of available OS images (one for each minor OCP version and CPU architecture)
RELEASE_IMAGES	A list of available release images (one for each minor OCP version and CPU architecture)

Installation parameters

BASE_DOMAIN	base domain, needed for DNS name, default: redhat.com
CLUSTER_ID	cluster id, used for already existing cluster, e.g. after the deploy_nodes command
CLUSTER_NAME	cluster name, used as prefix for virsh resources, default: test-infra-cluster
HTTPS_PROXY_URL	A proxy URL to use for creating HTTPS connections outside the cluster
HTTP_PROXY_URL	A proxy URL to use for creating HTTP connections outside the cluster
ISO	path to ISO to spawn VM with, if set vms will be spawn with this iso without creating cluster. File must have the '.iso' suffix
MASTER_MEMORY	memory for master VM, default: 16384MB
NETWORK_CIDR	network CIDR to use for virsh VM network, default: "192.168.126.0/24"
NETWORK_NAME	virsh network name for VMs creation, default: test-infra-net
NO_PROXY_VALUES	A comma-separated list of destination domain names, domains, IP addresses, or other network CIDRs to exclude proxying
NUM_MASTERS	number of VMs to spawn as masters, default: 3
NUM_WORKERS	number of VMs to spawn as workers, default: 0
OPENSHIFT_VERSION	OpenShift version to install, default taken from the deployed assisted-service (/v2/openshift-versions)
HYPERTHREADING	Set node's CPU hyperthreading mode. Values are: all, none, masters, workers. default: all
DISK_ENCRYPTION_MODE	Set disk encryption mode. Right now assisted-test-infra only supports "tpmv2", which is also the default.
DISK_ENCRYPTION_ROLES	Set node roles to apply disk encryption. Values are: all, none, masters, workers. default: none
PULL_SECRET	pull secret to use for cluster installation command, no option to install cluster without it.
PULL_SECRET_FILE	path and name to the file containing the pull secret to use for cluster installation command, no option to install cluster without it.
REMOTE_SERVICE_URL	URL to remote assisted-service - run infra on existing deployment
ROUTE53_SECRET	Amazon Route 53 secret to use for DNS domains registration.
WORKER_MEMORY	memory for worker VM, default: 8892MB
SSH_PUB_KEY	SSH public key to use for image generation, gives option to SSH to VMs, default: ~/.ssh/id_rsa.pub
IPXE_BOOT	Boots VMs using iPXE if set to true, default: false
PLATFORM	The openshift platform to integrate with, one of: baremetal, none,vsphere, default: baremetal
DISCOVERY_KERNEL_ARGUMENTS	JSON formatted string containing array of dictionaries each having 2 attributes: operation and value. Currently, only append operation is supported.
CPU_ARCHITECTURE	CPU architecture of the nodes that will be part of the cluster, one of: x86_64, arm64, s390x, ppc64le, default: x86_64

Vsphere parameters

VSPHERE_CLUSTER	vSphere cluster name, vsphere cluster is a cluster of hosts that it manages, mandatory for vsphere platform
VSPHERE_VCENTER	vSphere vcenter server ip address or fqdn (vCenter server name for vSphere API operations), mandatory for vsphere platform
VSPHERE_DATACENTER	vSphere data center name, mandatory for vsphere platform
VSPHERE_NETWORK	vSphere publicly accessible network for cluster ingress and access. e.g VM Network, mandatory for vsphere platform
VSPHERE_DATASTORE	vSphere data store name, mandatory for vsphere platform
VSPHERE_USERNAME	vSphere vcenter server username, mandatory for vsphere platform
VSPHERE_PASSWORD	vSphere vcenter server password, mandatory for vsphere platform

Instructions

Host preparation

On the bare metal host:

Note: don't do it from /root folder - it will break build image mounts and fail to run

dnf install -y git make
cd /home/test
git clone https://github.com/openshift/assisted-test-infra.git

When using this infra for the first time on a host, run:

make setup

This will install required packages, configure libvirt, pull relevant Docker images, and start Minikube.

Usage

There are different options to use test-infra, which can be found in the makefile.

Adding a new e2e flow

Documentation about guidelines on how to create a new e2e test can be found here

Full flow cases

The following is a list of stages that will be run:

1. Start Minikube if not started yet
2. Deploy services for assisted deployment on Minikube
3. Create cluster in assisted-service service
4. Download ISO image
5. Spawn required number of VMs from downloaded ISO with parameters that can be configured by OS environment (check makefile)
6. Wait until nodes are up and registered in assisted-service
7. Set nodes roles in assisted-service by matching VM names (worker/master)
8. Verify all nodes have required hardware to start installation
9. Install nodes
10. Download kubeconfig-noingress to build/kubeconfig
11. Waiting till nodes are in installed state, while verifying that they don't move to error state
12. Verifying cluster is in state installed
13. Download kubeconfig to build/kubeconfig

Note: Please make sure no previous cluster is running before running a new one (it will rewrite its build files).

Run full flow with install

To run the full flow, including installation:

make run deploy_nodes_with_install

Or to run it together with setup (requires sudo password):

make all

Run full flow without install

To run the flow without the installation stage:

make run deploy_nodes_with_networking

Run base flow without configuring networking

Deploy the nodes without the network configuration and without the installation stage:

make run deploy_nodes

Run full flow with ipv6

To run the flow with default IPv6 settings:

make deploy_nodes_with_install IPv4=no IPv6=yes

Redeploy nodes

make redeploy_nodes

Or:

make redeploy_nodes_with_install

Cleaning

Following sections show how to perform cleaning of test-infra environment.

Clean all include minikube

make destroy

Clean nodes only

make destroy_nodes

Delete all virsh resources

Sometimes you may need to delete all libvirt resources

make delete_all_virsh_resources

Create cluster and download ISO

make download_iso

Deploy Assisted Service and Monitoring stack

make run
make deploy_monitoring

deploy_assisted_service and Create cluster and download ISO

make download_iso_for_remote_use

start_minikube and Deploy UI and open port forwarding on port 6008, allows to connect to it from browser

make deploy_ui

Kill all open port forwarding commands, will be part of destroy target

make kill_all_port_forwardings

Test assisted-service image

make destroy run SERVICE=<image to test>

Test agent image

make destroy run AGENT_DOCKER_IMAGE=<image to test>

Test installer image or controller image

make destroy run INSTALLER_IMAGE=<image to test> CONTROLLER_IMAGE=<image to test>

Test installer, controller, assisted-service and agent images in the same flow

make destroy run INSTALLER_IMAGE=<image to test> AGENT_DOCKER_IMAGE=<image to test> SERVICE=<image to test>

Test infra image

Assisted-test-infra builds an image including all the prerequisites to handle this repository.

make image_build

In case you would like to build the image with a different assisted-service client

make image_build SERVICE=<assisted service image URL>

Test with RHSSO Authentication

To test with Authentication, the following additional environment variables are required:

export AUTH_TYPE=rhsso
export OCM_CLIENT_ID=<SSO Service Account Name>
export OCM_CLIENT_SECRET=<SSO Service Account Password>
export OCM_BASE_URL=https://api.openshift.com
export OFFLINE_TOKEN=<User token from https://cloud.redhat.com/openshift/token>

• UI is not available when Authentication is enabled.
• The PULL_SECRET variable should be taken from the same Red Hat cloud environment as defined in OCM_URL (integration, stage or production).

Single Node - Bootstrap in place with Assisted Service

To test single node bootstrap in place flow with assisted service

export PULL_SECRET='<pull secret JSON>'
export OPENSHIFT_INSTALL_RELEASE_IMAGE=<relevant release image if needed>
export NUM_MASTERS=1
make deploy_nodes_with_install

Set BIP_BUTANE_CONFIG env var to the path with butane config to be merged with bootstrap. Might be useful for promtail logging / other debug tasks

Single Node - Bootstrap in place with Assisted Service and IPv6

To test single node bootstrap in place flow with assisted service and ipv6

export PULL_SECRET='<pull secret JSON>'
export OPENSHIFT_INSTALL_RELEASE_IMAGE=<relevant release image if needed>
export NUM_MASTERS=1
make deploy_nodes_with_install IPv6=yes IPv4=no

Kind

Set DEPLOY_TARGET=kind to have a full construction of assisted-installer on top of a kubernetes cluster which is running as one podman container:

# currently it's advisable to set it throughout the entire testing session because
# tests are also using this env-var to understand the networking layout
export DEPLOY_TARGET=kind

make run deploy_nodes_with_install

You can also create the kind cluster just by doing:

make create_hub_cluster DEPLOY_TARGET=kind

On kind mode you should be able to access the UI / API via http://<host>/.

On-prem

To test on-prem in the e2e flow, two additional environment variables need to be set:

export DEPLOY_TARGET=onprem
export ASSISTED_SERVICE_HOST=<fqdn-or-ip>

Setting DEPLOY_TARGET to "onprem" configures assisted-test-infra to deploy the assisted-service using a pod on your local host.

ASSISTED_SERVICE_HOST defines where the assisted-service will be deployed. For "onprem" deployments, set it to the FQDN or IP address of the host.

Optionally, you can also provide OPENSHIFT_INSTALL_RELEASE_IMAGE and PUBLIC_CONTAINER_REGISTRIES:

export OPENSHIFT_INSTALL_RELEASE_IMAGE=quay.io/openshift-release-dev/ocp-release:4.7.0-x86_64
export PUBLIC_CONTAINER_REGISTRIES=quay.io

If you do not export the optional variables, it will run with the default specified in assisted-service/onprem-environment.

Then run the same commands described in the instructions above to execute the test.

To run the full flow:

make all

To cleanup after the full flow:

make destroy

Run operator

The current implementation installs an OCP cluster using assisted service on minikube. Afterwards, we install the assisted-service-operator on top of that cluster. The first step would be removed once we could either:

• Have an OCP cluster easily (i.e. CRC)
• Install the assisted-service operator on top of pure-k8s cluster. (At the moment there are some OCP component prerequisites)

# Deploy AI
make run deploy_nodes_with_install

# Deploy AI Operator on top of the new cluster
export KUBECONFIG=./build/kubeconfig
make deploy_assisted_operator

Clear the operator deployment

make clear_operator

Run installation with the operator

export INSTALLER_KUBECONFIG=./build/kubeconfig
export TEST_FUNC=test_kube_api_ipv4
export TEST=./src/tests/test_kube_api.py
export TEST_TEARDOWN=false
make test

Cluster-API-provider-agent

To test capi-provider e2e flow, few additional environment variables need to be set: these environment variables result a bigger minikube instance required for this flow

# The following exports are required since the capi test flow requires more resources than the default minikube deployment provides
export MINIKUBE_HOME=/home
export MINIKUBE_DISK_SIZE=100g
export MINIKUBE_RAM_MB=12288

Setup minikube with assisted-installer (kube-api enabled):

export PULL_SECRET=<your pull secret>
ENABLE_KUBE_API=true make run

Deploy capi-provider-agent and hypershift:

make deploy_capi_env

Run the test:

ENABLE_KUBE_API=true make test TEST=./src/tests/test_kube_api.py TEST_FUNC=test_capi_provider KUBECONFIG=$HOME/.kube/config

Test iPXE boot flow

To test e2e deploying and installing nodes using iPXE, run the following:

export IPXE_BOOT=true
make setup
make run
make deploy_nodes_with_install

Optional environment variables that may be set for this test

IPXE_BOOT	Boots VM hosts using iPXE if set to true, default: false

Notes:

• A containerized Python server will be used to host the iPXE scripts for each cluster. This is due to the URL of the iPXE script file hosted in the assisted-service is longer than the character limit allowed in libvirt.