info_tfgrid/collections/developers/javascript/grid3_javascript_qsfs_zdbs.md

Deploying ZDBs for QSFS

Table of Contents

• Introduction
• Prerequisites
• Example code
• Detailed explanation
  • Getting the client
  • Preparing the nodes
  • Preparing ZDBs
  • Deploying the ZDBs
  • Getting deployment information
  • Deleting a deployment

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Introduction

We show how to deploy ZDBs for QSFS on the TFGrid with the Javascript client.

Prerequisites

• Make sure you have your client prepared

Example code

import { FilterOptions, QSFSZDBSModel } from "../src";
import { getClient } from "./client_loader";
import { log } from "./utils";

async function main() {
    const grid3 = await getClient();
    const qsfs_name = "zdbsQsfsDemo";
    const qsfsQueryOptions: FilterOptions = {
        hru: 8,
        availableFor: grid3.twinId,
        farmId: 1,
    };
    const qsfsNodes = [];

    const allNodes = await grid3.capacity.filterNodes(qsfsQueryOptions);

    if (allNodes.length >= 2) {
        qsfsNodes.push(+allNodes[0].nodeId, +allNodes[1].nodeId);
    } else {
        throw Error("Couldn't find nodes for qsfs");
    }

    const qsfs: QSFSZDBSModel = {
        name: qsfs_name,
        count: 12,
        node_ids: qsfsNodes,
        password: "mypassword",
        disk_size: 1,
        description: "my zdbs test",
        metadata: "",
    };
    const deploy_res = await grid3.qsfs_zdbs.deploy(qsfs);
    log(deploy_res);

    const zdbs_data = await grid3.qsfs_zdbs.get({ name: qsfs_name });
    log(zdbs_data);


    await grid3.disconnect();
}
main();

Detailed explanation

Getting the client

const grid3 = getClient();

Preparing the nodes

we need to deploy the zdbs on two different nodes so, we setup the filters here to retrieve the available nodes.

const qsfsQueryOptions: FilterOptions = {
    hru: 16,
    availableFor: grid3.twinId,
    farmId: 1,
};
const qsfsNodes = [];

const allNodes = await grid3.capacity.filterNodes(qsfsQueryOptions);

if (allNodes.length >= 2) {
    qsfsNodes.push(+allNodes[0].nodeId, +allNodes[1].nodeId);
} else {
    throw Error("Couldn't find nodes for qsfs");
}

Now we have two nodes in qsfsNode.

Preparing ZDBs

const qsfs_name = "zdbsQsfsDemo";

We prepare here a name to use across the client for the QSFS ZDBs

Deploying the ZDBs

const qsfs: QSFSZDBSModel = {
        name: qsfs_name,
        count: 12,
        node_ids: qsfsNodes,
        password: "mypassword",
        disk_size: 1,
        description: "my qsfs test",
        metadata: "",
    };
const deploy_res = await grid3.qsfs_zdbs.deploy(qsfs);
log(deploy_res);

Here we deploy 12 ZDBs on nodes in qsfsNode with password mypassword, all of them having disk size of 1GB, the client already add 4 zdbs for metadata.

Getting deployment information

const zdbs_data = await grid3.qsfs_zdbs.get({ name: qsfs_name });
log(zdbs_data);

Deleting a deployment

const delete_response = await grid3.qsfs_zdbs.delete({ name: qsfs_name });
log(delete_response);