info_tfgrid/collections/developers/javascript/grid3_javascript_caprover.md

Deploy CapRover

Table of Contents

• Introduction
• Leader Node
  • Code Example
  • Environment Variables
• Worker Node
  • Code Example
  • Environment Variables
• Questions and Feedback

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Introduction

In this section, we show how to deploy CapRover with the Javascript client.

This deployment is very similar to what we have in the section Deploy a VM, but the environment variables are different.

Leader Node

We present here a code example and the environment variables to deploy a CapRover Leader node.

For further details about the Leader node deployment, read this documentation.

Code Example

import {
  DiskModel,
  FilterOptions,
  MachineModel,
  MachinesModel,
  NetworkModel,
} from "../src";
import { config, getClient } from "./client_loader";
import { log } from "./utils";

async function main() {
  const grid3 = await getClient();

  const vmQueryOptions: FilterOptions = {
    cru: 4,
    mru: 4, // GB
    sru: 10,
    farmId: 1,
  };

  const CAPROVER_FLIST =
    "https://hub.grid.tf/tf-official-apps/tf-caprover-latest.flist";
  // create network Object
  const n = new NetworkModel();
  n.name = "wedtest";
  n.ip_range = "10.249.0.0/16";

  // create disk Object
  const disk = new DiskModel();
  disk.name = "wedDisk";
  disk.size = 10;
  disk.mountpoint = "/var/lib/docker";

  // create vm node Object
  const vm = new MachineModel();
  vm.name = "testvm";
  vm.node_id = +(await grid3.capacity.filterNodes(vmQueryOptions))[0].nodeId;
  vm.disks = [disk];
  vm.public_ip = true;
  vm.planetary = false;
  vm.cpu = 4;
  vm.memory = 1024 * 4;
  vm.rootfs_size = 0;
  vm.flist = CAPROVER_FLIST;
  vm.entrypoint = "/sbin/zinit init";
  vm.env = {
    PUBLIC_KEY: config.ssh_key,
    SWM_NODE_MODE: "leader",
    CAPROVER_ROOT_DOMAIN: "rafy.grid.tf", // update me
    DEFAULT_PASSWORD: "captain42",
    CAPTAIN_IMAGE_VERSION: "latest",
  };

  // create VMs Object
  const vms = new MachinesModel();
  vms.name = "newVMS5";
  vms.network = n;
  vms.machines = [vm];
  vms.metadata = "{'testVMs': true}";
  vms.description = "caprover leader machine/node";

  // deploy vms
  const res = await grid3.machines.deploy(vms);
  log(res);

  // get the deployment
  const l = await grid3.machines.getObj(vms.name);
  log(l);

  log(
    `You can access Caprover via the browser using: https://captain.${vm.env.CAPROVER_ROOT_DOMAIN}`
  );

  // // delete
  // const d = await grid3.machines.delete({ name: vms.name });
  // log(d);

  await grid3.disconnect();
}

main();

Environment Variables

• PUBLIC_KEY: Your public IP to be able to access the VM.
• SWM_NODE_MODE: Caprover Node type which must be leader as we are deploying a leader node.
• CAPROVER_ROOT_DOMAIN: The domain which you we will use to bind the deployed VM.
• DEFAULT_PASSWORD: Caprover default password you want to deploy with.

Worker Node

We present here a code example and the environment variables to deploy a CapRover Worker node.

Note that before deploying the Worker node, you should check the following:

• Get the Leader node public IP address.
• The Worker node should join the cluster from the UI by adding public IP address and the private SSH key.

For further information, read this documentation.

Code Example

import {
  DiskModel,
  FilterOptions,
  MachineModel,
  MachinesModel,
  NetworkModel,
} from "../src";
import { config, getClient } from "./client_loader";
import { log } from "./utils";

async function main() {
  const grid3 = await getClient();

  const vmQueryOptions: FilterOptions = {
    cru: 4,
    mru: 4, // GB
    sru: 10,
    farmId: 1,
  };

  const CAPROVER_FLIST =
    "https://hub.grid.tf/tf-official-apps/tf-caprover-latest.flist";
  // create network Object
  const n = new NetworkModel();
  n.name = "wedtest";
  n.ip_range = "10.249.0.0/16";

  // create disk Object
  const disk = new DiskModel();
  disk.name = "wedDisk";
  disk.size = 10;
  disk.mountpoint = "/var/lib/docker";

  // create vm node Object
  const vm = new MachineModel();
  vm.name = "capworker1";
  vm.node_id = +(await grid3.capacity.filterNodes(vmQueryOptions))[0].nodeId;
  vm.disks = [disk];
  vm.public_ip = true;
  vm.planetary = false;
  vm.cpu = 4;
  vm.memory = 1024 * 4;
  vm.rootfs_size = 0;
  vm.flist = CAPROVER_FLIST;
  vm.entrypoint = "/sbin/zinit init";
  vm.env = {
    // These env. vars needed to be changed based on the leader node.
    PUBLIC_KEY: config.ssh_key,
    SWM_NODE_MODE: "worker",
    LEADER_PUBLIC_IP: "185.206.122.157",
    CAPTAIN_IMAGE_VERSION: "latest",
  };

  // create VMs Object
  const vms = new MachinesModel();
  vms.name = "newVMS6";
  vms.network = n;
  vms.machines = [vm];
  vms.metadata = "{'testVMs': true}";
  vms.description = "caprover worker machine/node";

  // deploy vms
  const res = await grid3.machines.deploy(vms);
  log(res);

  // get the deployment
  const l = await grid3.machines.getObj(vms.name);
  log(l);

  // // delete
  // const d = await grid3.machines.delete({ name: vms.name });
  // log(d);

  await grid3.disconnect();
}

main();

Environment Variables

The deployment of the Worker node is similar to the deployment of the Leader node, with the exception of the environment variables which differ slightly.

• PUBLIC_KEY: Your public IP to be able to access the VM.
• SWM_NODE_MODE: Caprover Node type which must be worker as we are deploying a worker node.
• LEADER_PUBLIC_IP: Leader node public IP.

Questions and Feedback

If you have any questions, you can ask the ThreeFold community for help on the ThreeFold Forum or on the ThreeFold Grid Tester Community on Telegram.