Cray System Management Documentation > Cray System Management (CSM) Administration Guide > node management > Updating Cabinet Routes on Management NCNs

Updating Cabinet Routes on Management NCNs

This procedure will use configuration from System Layout Service (SLS) to set up the proper routing for all air-cooled and liquid-cooled cabinets present in the system on each of the Management NCNs.

Prerequisites

Passwordless SSH to all of the management NCNs is configured.

(ncn-m001#) Ensure that Cray Site Init (CSI) is installed and available.

csi version

If the csi command is not available, then install it:

Ensure the csm-sle-15sp2 RPM repository has been added to ncn-m001.

zypper lr csm-sle-15sp2

Expected output:

Alias          : csm-sle-15sp2
Name           : CSM SLE 15 SP2 Packages (added by Ansible)
URI            : https://packages.local/repository/csm-sle-15sp2
Enabled        : Yes
GPG Check      : ( p) Yes
Priority       : 99 (default priority)
Autorefresh    : On
Keep Packages  : Off
Type           : rpm-md
GPG Key URI    :
Path Prefix    :
Parent Service :
Keywords       : ---
Repo Info Path : /etc/zypp/repos.d/csm-sle-15sp2.repo
MD Cache Path  : /var/cache/zypp/raw/csm-sle-15sp2

If the csm-sle-15sp2 repository is not present, then add it.

zypper addrepo -fG https://packages.local/repository/csm-sle-15sp2 csm-sle-15sp2

Install Cray Site Init.
```
zypper install cray-site-init
```

Procedure

(ncn-m001#) Get an API token.

export TOKEN=$(curl -s -S -d grant_type=client_credentials \
                -d client_id=admin-client \
                -d client_secret=`kubectl get secrets admin-client-auth -o jsonpath='{.data.client-secret}' | base64 -d` \
                https://api-gw-service-nmn.local/keycloak/realms/shasta/protocol/openid-connect/token | jq -r '.access_token')

(ncn-m001#) Add cabinet routes to each of the management NCNs using data from SLS.
```
/usr/share/doc/csm/scripts/operations/node_management/update-ncn-cabinet-routes.sh
```
If the following message appears, then the route being added is already present on the NCN and can be safely ignored.
```
RTNETLINK answers: File exists
```

(ncn-m001#) Create payload to update the cloud-init user data for management NCNs in BSS to contain the updated cabinet route information.

cat <<EOF >write-files-user-data.json
{
    "user-data": {
        "write_files": [{
            "content": $(jq -n --rawfile file /etc/sysconfig/network/ifroute-bond0.nmn0 '$file'),
            "owner": "root:root",
            "path": "/etc/sysconfig/network/ifroute-bond0.nmn0",
            "permissions": "0644"
        },
        {
            "content": $(jq -n --rawfile file /etc/sysconfig/network/ifroute-bond0.hmn0 '$file'),
            "owner": "root:root",
            "path": "/etc/sysconfig/network/ifroute-bond0.hmn0",
            "permissions": "0644"
        }
        ]
    }
}
EOF

(ncn-m001#) Update BSS cloud-init user data for the management NCNs.

ncn_xnames=$(curl -s -k -H "Authorization: Bearer ${TOKEN}" "https://api-gw-service-nmn.local/apis/sls/v1/search/hardware?extra_properties.Role=Management" | jq -r '.[] | .Xname' | sort)
for ncn in $ncn_xnames; do
    echo "Updating BSS for $ncn"
    csi handoff bss-update-cloud-init --user-data=write-files-user-data.json --limit=${ncn}
done