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Yarnman Deployment

1. Deploy yarnman OVA to VMware 

Yarnman ova can be depoyed either using VMware OVFtool or by uploading the ova to vSphere/ESXi 

OVA file format yarnman-2.X.X-master-XXXXXX.ova

If using Ovftool to deploy

  1. ovftool --name="<VMNAME>" --powerOn --datastore="<datastore>" --net:"nat"="<network name>" <Yarnman OVA> "<VI path >"

  2. VI Paths

  3. Direct ESXI "vi://<vmware username>@<ESXI IP>"

  4. Direct ESXI with resource pool "vi://<vmware username>@<ESXI IP>/<resource Pool>"

  5. vSphere Host "vi://<vmware username>@<vSphere>/<datacenter name/host/<Host IP or name>"

  6. vSphere Cluster "vi://<vmware username>@<vSphere>/<datacenter name/host/<cluster name>/<Host IP or name>"

  • if you use a "@" or any other special characters in your username or password it must be converted to ASCI and prefixed with % e.g. test@yarnlab.io is test%40yarnlab.io 


2. Using VMware Console log into Yarnman to bootstrap configuration

Default username: yarnman Password: yarnman

  • Set the IP address using the VMware console.

  • cd /opt/yarnlab/yarnman

  • sudo ./scripts/bootstrap.sh

    1. Do you want to set a static IP? Y or N : Enter Y to set static IP

    2. You will be asked to select network interface : select number adjacent to ensXX

    3. enter Ip address : Enter the required IP address

    4. enter netmask : to accept default press Enter, otherwise enter required netmask

    5. enter gateway : enter the required gateway address

    6. enter dns server1 : to accept default, press Enter, otherwise enter required DNS server address

    7. You will be asked if you want to change hostname : to accept existing hostname press N otherwise, Y + enter new hostname

    8. You will be asked if you wish to change password : enter N to keep default or Y to change password

    9. You will be asked if you wish to change yarnman-protected password : Enter N to keep default or Y to change the protected password

  • To change the password at any time SSH and run the passwd command.


It is strongly recommended to change the default password for SSH access
Update hostname if required via /etc/hosts

Deploy as a Standalone Core

Follow these steps to install the Migration Assistant as a core server. This configuration automatically sets up the server and all required services.

  1. Log in to the Yarnman server as user yarnman using ssh.

  2. Change the directory to /opt/yarnlab/yarnman/

  3. Run the install script using node and sudo:
    sudo node ./scripts/install-as-core-standalone.js -p <password> --couchport <couchport> --redisport <redisport> and substitute the <value>
    sudo node ./scripts/install-as-core-standalone.js -p <password> --couchport 5984 --redisport 6379

  4. Browse to Yarnman IP and set the administrator account password.

  5. Accept the End User License Agreement by selecting the check box.

  6. Under the Set Administrator Password option, enter the password that is used later to log in to the GUI & click "Save Acceptance and Update Administrator".

  7. Login with the username of the administrator and password that you created.


It is strongly recommended to change the default password for web access this is done by going into the default access policy then users

Install As Arm

This is only required for distributed yarnman deployments where network traversal is required

Only follow these steps if you are deploying Yarnman as a distributed system (multiple VMs)
Note that configuration is required on the core node for allowing connectivity from the Arm to the Core describe in the LOCAL FIREWALL CONFIGURATION section in this document.
This will install the OVA as a node of Yarnman, connect to the central core database and enroll. Once accepted by the core services, interfaces may be added to it
Target full path of the core's Redis - redis://<some host or ipaddress>:<port - likely 6378>

  1. CD to /opt/yarnlab/yarnman/

  2. Run the script using node and sudo: 

sudo node ./scripts/install-as-arm.js -n <node name> -c <couchpath> -r <redispath> 

with values prepared above substituted for <value>.

  • Node name to appear on the enrollment screen in AdminApp of the core.

  • Target full path of the core's CouchDB - http(s)://<some host or ipaddress>:<port - likely 5984>

sudo node ./scripts/install-as-arm.js -n <name> -c http://<core ip>:5984 -r redis://<core ip>:6379'

  1. Go to the Core's Administration App → Enrollments and accept the new node, you may add services and interface in the normal way.

  2. The enrollment process will auto-generate credentials for the Arm.



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