# Interview homework
###### tags: `Training`

# Welcome to TripleO's take home assignment

You will get a server with 2 interfaces on which to perform the standalone install from the instructions below. We have validated these instructions below, you will find reference documentation at [this link](https://docs.openstack.org/project-deploy-guide/tripleo-docs/latest/deployment/standalone.html)

Please send us your ssh keys to gain access to the server - if you cannot access the server with keys already added. ssh to the server as the centos user.

This deployment will be referenced in your interview. Please leave it up and running.

If you need to restart the deployment on a new node, ping us (rlandy, weshay_ruck on #tripleo) and we will give you a new node to work on.

## Prep work

* please execute the following ..

* update your instance, and install prereqs

sudo dnf update -y 
sudo dnf install -y python3
sudo setenforce 0

* Ensure a fully qualified hostname has been configured

sudo hostnamectl set-hostname standalone.localdomain
sudo hostnamectl set-hostname standalone.localdomain --transient

* install tripleos repo setup tool
* check for the exact rpm in https://trunk.rdoproject.org/centos8-victoria/component/tripleo/current

sudo dnf install -y https://trunk.rdoproject.org/centos8-victoria/component/tripleo/current/python3-tripleo-repos-0.1.1-0.20210118183911.2cfaa48.el8.noarch.rpm

sudo -E tripleo-repos -b victoria current

sudo dnf install -y python3-tripleoclient

* network manager needs to be disabled.

sudo rm -rf /etc/sysconfig/network-scripts/ifcfg-ens3
sudo systemctl stop NetworkManager
sudo systemctl disable NetworkManager

----
## start the install process

* export required parameters

 export IP=${IP_ON_eth0}
 export VIP=192.168.101.2
 export NETMASK=24
 export INTERFACE=eth1

* create a container prepare configuration

openstack tripleo container image prepare default \
  --output-env-file $HOME/containers-prepare-parameters.yaml

* create the parameters for the standalone deployment of TripleO's Openstack

cat <<EOF > $HOME/standalone_parameters.yaml
parameter_defaults:
  CloudName: $IP
  ControlPlaneStaticRoutes: []
  Debug: true
  DeploymentUser: $USER
  DnsServers:
    - 1.1.1.1
    - 8.8.8.8
  DockerInsecureRegistryAddress:
    - $IP:8787
  NeutronPublicInterface: $INTERFACE
  # domain name used by the host
  CloudDomain: localdomain
  NeutronDnsDomain: localdomain
  # re-use ctlplane bridge for public net, defined in the standalone
  # net config (do not change unless you know what you're doing)
  NeutronBridgeMappings: datacentre:br-ctlplane
  NeutronPhysicalBridge: br-ctlplane
  # enable to force metadata for public net
  #NeutronEnableForceMetadata: true
  StandaloneEnableRoutedNetworks: false
  StandaloneHomeDir: $HOME
  InterfaceLocalMtu: 1500
  # Needed if running in a VM, not needed if on baremetal
  NovaComputeLibvirtType: qemu
  SELinuxMode: permissive
EOF

* Now execute the deployment

sudo openstack tripleo deploy \
  --templates \
  --local-ip=$IP/$NETMASK \
  --control-virtual-ip $VIP \
  -e /usr/share/openstack-tripleo-heat-templates/environments/standalone/standalone-tripleo.yaml \
  -r /usr/share/openstack-tripleo-heat-templates/roles/Standalone.yaml \
  -e $HOME/containers-prepare-parameters.yaml \
  -e $HOME/standalone_parameters.yaml \
  --output-dir $HOME \
  --standalone