f43e9e50d7
add basic documentation of routes, add swap for lxc instances to /instance/resources endpoint Signed-off-by: Arthur Lu <learthurgo@gmail.com>
591 lines
22 KiB
JavaScript
591 lines
22 KiB
JavaScript
import express from "express";
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import bodyParser from "body-parser";
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import cookieParser from "cookie-parser";
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import cors from "cors";
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import morgan from "morgan";
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import api from "./package.json" assert {type: "json"};
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import { pveAPIToken, listenPort, hostname, domain } from "./vars.js";
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import { checkAuth, requestPVE, handleResponse, getDiskInfo } from "./pve.js";
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import { getAllocatedResources, approveResources } from "./utils.js";
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import { getUserConfig } from "./db.js";
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const app = express();
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app.use(bodyParser.urlencoded({ extended: true }));
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app.use(cookieParser())
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app.use(cors({ origin: hostname }));
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app.use(morgan("combined"));
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/**
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* GET - get API version
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* responses:
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* - 200: {version: String}
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*/
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app.get("/api/version", (req, res) => {
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res.status(200).send({ version: api.version });
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});
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/**
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* GET - echo request
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* responses:
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* - 200: {body: request.body, cookies: request.cookies}
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*/
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app.get("/api/echo", (req, res) => {
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res.status(200).send({ body: req.body, cookies: req.cookies });
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});
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/**
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* GET - check authentication
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* responses:
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* - 200: {auth: true, path: String}
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* - 401: {auth: false, path: String}
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*/
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app.get("/api/auth", async (req, res) => {
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let auth = await checkAuth(req.cookies, res);
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if (!auth) { return; }
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res.status(200).send({ auth: true });
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});
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/**
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* GET - proxy proxmox api without privilege elevation
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* request and responses passed through to/from proxmox
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*/
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app.get("/api/proxmox/*", async (req, res) => { // proxy endpoint for GET proxmox api with no token
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let path = req.url.replace("/api/proxmox", "");
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let result = await requestPVE(path, "GET", req.cookies);
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res.status(result.status).send(result.data);
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});
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/**
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* POST - proxy proxmox api without privilege elevation
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* request and responses passed through to/from proxmox
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*/
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app.post("/api/proxmox/*", async (req, res) => { // proxy endpoint for POST proxmox api with no token
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let path = req.url.replace("/api/proxmox", "");
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let result = await requestPVE(path, "POST", req.cookies, JSON.stringify(req.body)); // need to stringify body because of other issues
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res.status(result.status).send(result.data);
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});
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/**
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* POST - safer ticket generation using proxmox authentication but adding HttpOnly
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* request:
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* - username: String
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* - password: String
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* responses:
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* - 200: {auth: true, path: String}
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* - 401: {auth: false, path: String}
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*/
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app.post("/api/ticket", async (req, res) => {
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let response = await requestPVE("/access/ticket", "POST", null, JSON.stringify(req.body));
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if (!(response.status === 200)) {
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res.status(response.status).send({ auth: false });
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res.end();
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return;
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}
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let ticket = response.data.data.ticket;
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let csrftoken = response.data.data.CSRFPreventionToken;
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let username = response.data.data.username;
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let expire = new Date(Date.now() + (2 * 60 * 60 * 1000));
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res.cookie("PVEAuthCookie", ticket, { domain: domain, path: "/", httpOnly: true, secure: true, expires: expire });
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res.cookie("CSRFPreventionToken", csrftoken, { domain: domain, path: "/", httpOnly: true, secure: true, expires: expire });
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res.cookie("username", username, { domain: domain, path: "/", secure: true, expires: expire });
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res.cookie("auth", 1, { domain: domain, path: "/", secure: true, expires: expire });
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res.status(200).send({ auth: true });
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});
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/**
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* DELETE - request to destroy ticket
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* responses:
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* - 200: {auth: false, path: String}
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*/
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app.delete("/api/ticket", async (req, res) => {
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let expire = new Date(0);
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res.cookie("PVEAuthCookie", "", { domain: domain, path: "/", httpOnly: true, secure: true, expires: expire });
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res.cookie("CSRFPreventionToken", "", { domain: domain, path: "/", httpOnly: true, secure: true, expires: expire });
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res.cookie("username", "", { domain: domain, path: "/", httpOnly: true, secure: true, expires: expire });
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res.cookie("auth", 0, { domain: domain, path: "/", expires: expire });
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res.status(200).send({ auth: false });
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});
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/**
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* GET - get db user resource information including allocated, free, and maximum resource values along with resource metadata
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* responses:
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* - 200: {avail: Object, max: Object, units: Object, used: Object}
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* - 401: {auth: false, path: String}
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*/
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app.get("/api/user/resources", async (req, res) => {
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// check auth
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let auth = await checkAuth(req.cookies, res);
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if (!auth) { return; }
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let resources = await getAllocatedResources(req, req.cookies.username);
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res.status(200).send(resources);
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});
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/**
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* GET - get db user instance configuration
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* responses:
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* - 200: {pool: String, templates: {lxc: Object, qemu: Object}, vmid: {min: Number, max: Number}}
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* - 401: {auth: false, path: String}
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*/
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app.get("/api/user/instances", async (req, res) => {
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// check auth
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let auth = await checkAuth(req.cookies, res);
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if (!auth) { return; }
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let config = getUserConfig(req.cookies.username);
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res.status(200).send(config.instances)
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});
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/**
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* GET - get db user node configuration
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* responses:
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* - 200: {nodes: String[]}
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* - 401: {auth: false, path: String}
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*/
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app.get("/api/user/nodes", async (req, res) => {
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// check auth
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let auth = await checkAuth(req.cookies, res);
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if (!auth) { return; }
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let config = getUserConfig(req.cookies.username);
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res.status(200).send({ nodes: config.nodes })
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})
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/**
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* POST - detach mounted disk from instance
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* request:
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* - node: String - vm host node id
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* - type: String - vm type (lxc, qemu)
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* - vmid: Number - vm id number
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* - disk: String - disk id (sata0, NOT unused)
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* responses:
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* - 200: Object(pve_auth_object)
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* - 401: {auth: false, path: String}
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* - 500: {error: String}
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* - 500: Object(pve_task_object)
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*/
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app.post("/api/instance/disk/detach", async (req, res) => {
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// check auth for specific instance
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let vmpath = `/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`;
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let auth = await checkAuth(req.cookies, res, vmpath);
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if (!auth) { return; }
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if (req.body.disk.includes("unused")) {
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res.status(500).send({ error: `Requested disk ${req.body.disk} cannot be unused. Use /disk/delete to permanently delete unused disks.` });
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res.end();
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return;
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}
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let action = JSON.stringify({ delete: req.body.disk });
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let method = req.body.type === "qemu" ? "POST" : "PUT";
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let result = await requestPVE(`${vmpath}/config`, method, req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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/**
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* POST - attach unused disk image to instance
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* request:
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* - node: String - vm host node id
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* - type: String - vm type (lxc, qemu)
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* - vmid: Number - vm id number
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* - disk: String - disk id (sata0)
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* - source: Number - source unused disk number (0 => unused0)
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* responses:
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* - 200: Object(pve_auth_object)
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* - 401: {auth: false, path: String}
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* - 500: {error: String}
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* - 500: Object(pve_task_object)
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*/
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app.post("/api/instance/disk/attach", async (req, res) => {
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// check auth for specific instance
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let vmpath = `/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`;
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let auth = await checkAuth(req.cookies, res, vmpath);
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if (!auth) { return; }
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// get current config and check if unused disk exists
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let config = await requestPVE(`${vmpath}/config`, "GET", req.cookies, null, null);
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if (!config.data.data[`unused${req.body.source}`]) {
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res.status(403).send({ error: `requested disk unused${req.body.source} does not exist` });
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res.end();
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return;
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}
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let sourceDisk = config.data.data[`unused${req.body.source}`];
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// setup action using source disk info from vm config
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let action = {};
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action[req.body.disk] = sourceDisk;
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action = JSON.stringify(action);
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let method = req.body.type === "qemu" ? "POST" : "PUT";
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// commit action
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let result = await requestPVE(`${vmpath}/config`, method, req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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/**
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* POST - increase size of mounted disk
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* request:
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* - node: String - vm host node id
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* - type: String - vm type (lxc, qemu)
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* - vmid: Number - vm id number
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* - disk: String - disk id (sata0)
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* - size: Number - increase size in GiB
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* responses:
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* - 200: Object(pve_auth_object)
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* - 401: {auth: false, path: String}
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* - 500: {error: String}
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* - 500: {request: Object, error: String}
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* - 500: Object(pve_task_object)
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*/
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app.post("/api/instance/disk/resize", async (req, res) => {
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// check auth for specific instance
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let vmpath = `/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`;
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let auth = await checkAuth(req.cookies, res, vmpath);
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if (!auth) { return; }
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// check disk existence
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let diskConfig = await getDiskInfo(req.body.node, req.body.type, req.body.vmid, req.body.disk); // get target disk
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if (!diskConfig) { // exit if disk does not exist
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res.status(500).send({ error: `requested disk ${req.body.disk} does not exist` });
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res.end();
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return;
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}
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// setup request
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let storage = diskConfig.storage; // get the storage
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let request = {};
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request[storage] = Number(req.body.size * 1024 ** 3); // setup request object
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// check request approval
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if (!await approveResources(req, req.cookies.username, request)) {
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res.status(500).send({ request: request, error: `Storage ${storage} could not fulfill request of size ${req.body.size}G.` });
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res.end();
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return;
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}
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// action approved, commit to action
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let action = JSON.stringify({ disk: req.body.disk, size: `+${req.body.size}G` });
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let result = await requestPVE(`${vmpath}/resize`, "PUT", req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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/**
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* POST - move mounted disk from one storage to another
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* request:
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* - node: String - vm host node id
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* - type: String - vm type (lxc, qemu)
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* - vmid: Number - vm id number
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* - disk: String - disk id (sata0)
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* - storage: String - target storage to move disk
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* - delete: Number - delete original disk (0, 1)
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* responses:
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* - 200: Object(pve_auth_object)
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* - 401: {auth: false, path: String}
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* - 500: {error: String}
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* - 500: {request: Object, error: String}
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* - 500: Object(pve_task_object)
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*/
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app.post("/api/instance/disk/move", async (req, res) => {
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// check auth for specific instance
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let vmpath = `/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`;
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let auth = await checkAuth(req.cookies, res, vmpath);
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if (!auth) { return; }
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// check disk existence
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let diskConfig = await getDiskInfo(req.body.node, req.body.type, req.body.vmid, req.body.disk); // get target disk
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if (!diskConfig) { // exit if disk does not exist
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res.status(500).send({ error: `requested disk ${req.body.disk} does not exist` });
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res.end();
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return;
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}
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// setup request
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let size = parseInt(diskConfig.size); // get source disk size
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let srcStorage = diskConfig.storage; // get source storage
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let dstStorage = req.body.storage; // get destination storage
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let request = {};
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let release = {};
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if (req.body.delete) { // if delete is true, increase resource used by the source storage
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release[srcStorage] = Number(size);
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}
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request[dstStorage] = Number(size); // always decrease destination storage by size
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// check request approval
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if (!await approveResources(req, req.cookies.username, request)) {
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res.status(500).send({ request: request, error: `Storage ${req.body.storage} could not fulfill request of size ${req.body.size}G.` });
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res.end();
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return;
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}
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// create action
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let action = { storage: req.body.storage, delete: req.body.delete };
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if (req.body.type === "qemu") {
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action.disk = req.body.disk
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}
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else {
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action.volume = req.body.disk
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}
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action = JSON.stringify(action);
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let route = req.body.type === "qemu" ? "move_disk" : "move_volume";
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// commit action
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let result = await requestPVE(`${vmpath}/${route}`, "POST", req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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/**
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* POST - delete unused disk permanently
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* request:
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* - node: String - vm host node id
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* - type: String - vm type (lxc, qemu)
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* - vmid: Number - vm id number
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* - disk: String - disk id (sata0)
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* responses:
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* - 200: Object(pve_auth_object)
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* - 401: {auth: false, path: String}
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* - 500: {error: String}
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* - 500: Object(pve_task_object)
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*/
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app.post("/api/instance/disk/delete", async (req, res) => {
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// check auth for specific instance
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let vmpath = `/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`;
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let auth = await checkAuth(req.cookies, res, vmpath);
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if (!auth) { return; }
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// only ide or unused are allowed to be deleted
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if (!req.body.disk.includes("unused") && !req.body.disk.includes("ide")) { // must be ide or unused
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res.status(500).send({ error: `Requested disk ${req.body.disk} must be unused or ide. Use /disk/detach to detach disks in use.` });
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res.end();
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return;
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}
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// create action
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let action = JSON.stringify({ delete: req.body.disk });
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let method = req.body.type === "qemu" ? "POST" : "PUT";
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// commit action
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let result = await requestPVE(`${vmpath}/config`, method, req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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/**
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* POST - create a new disk in storage of specified size
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* request:
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* - node: String - vm host node id
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* - type: String - vm type (lxc, qemu)
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* - vmid: Number - vm id number
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* - disk: String - disk id (sata0, ide0)
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* - storage: String - storage to hold disk
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* - size: Number size of disk in GiB
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* responses:
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* - 200: Object(pve_auth_object)
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* - 401: {auth: false, path: String}
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* - 500: {request: Object, error: String}
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* - 500: Object(pve_task_object)
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*/
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app.post("/api/instance/disk/create", async (req, res) => {
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// check auth for specific instance
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let vmpath = `/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`;
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let auth = await checkAuth(req.cookies, res, vmpath);
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if (!auth) { return; }
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// setup request
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let request = {};
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if (!req.body.disk.includes("ide")) {
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request[req.body.storage] = Number(req.body.size * 1024 ** 3); // setup request object
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// check request approval
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if (!await approveResources(req, req.cookies.username, request)) {
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res.status(500).send({ request: request, error: `Storage ${req.body.storage} could not fulfill request of size ${req.body.size}G.` });
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res.end();
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return;
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}
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}
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// setup action
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let action = {};
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if (req.body.disk.includes("ide") && req.body.iso) {
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action[req.body.disk] = `${req.body.iso},media=cdrom`;
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}
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else if (req.body.type === "qemu") { // type is qemu, use sata
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action[req.body.disk] = `${req.body.storage}:${req.body.size}`;
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}
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else { // type is lxc, use mp and add mp and backup values
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action[req.body.disk] = `${req.body.storage}:${req.body.size},mp=/${req.body.disk}/,backup=1`;
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}
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action = JSON.stringify(action);
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let method = req.body.type === "qemu" ? "POST" : "PUT";
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// commit action
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let result = await requestPVE(`${vmpath}/config`, method, req.cookies, action, pveAPIToken);
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await handleResponse(req.body.node, result, res);
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});
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/**
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* POST - modify virtual network interface
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* request:
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* - node: String - vm host node id
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* - type: String - vm type (lxc, qemu)
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* - vmid: Number - vm id number
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* - netid: Number - network interface id number (0 => net0)
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* - rate: Number - new bandwidth rate for interface in MB/s
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* responses:
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* - 200: Object(pve_auth_object)
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* - 401: {auth: false, path: String}
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* - 500: {request: Object, error: String}
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* - 500: Object(pve_task_object)
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*/
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app.post("/api/instance/network", async (req, res) => {
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// check auth for specific instance
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let vmpath = `/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`;
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let auth = await checkAuth(req.cookies, res, vmpath);
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if (!auth) { return; }
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// get current config
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let currentConfig = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/config`, "GET", null, null, pveAPIToken);
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let currentNetworkConfig = currentConfig.data.data[`net${req.body.netid}`];
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let currentNetworkRate = currentNetworkConfig.split("rate=")[1].split(",")[0];
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let request = {
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network: Number(req.body.rate) - Number(currentNetworkRate)
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};
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// check resource approval
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if (!await approveResources(req, req.cookies.username, request)) {
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res.status(500).send({ request: request, error: `Could not fulfil network request of ${req.body.rate}MB/s` });
|
|
res.end();
|
|
return;
|
|
}
|
|
// setup action
|
|
let action = {};
|
|
action[`net${req.body.netid}`] = currentNetworkConfig.replace(`rate=${currentNetworkRate}`, `rate=${req.body.rate}`);
|
|
action = JSON.stringify(action);
|
|
let method = req.body.type === "qemu" ? "POST" : "PUT";
|
|
// commit action
|
|
let result = await requestPVE(`${vmpath}/config`, method, req.cookies, action, pveAPIToken);
|
|
await handleResponse(req.body.node, result, res);
|
|
});
|
|
|
|
/**
|
|
* POST - set basic resources for vm
|
|
* request:
|
|
* - node: String - vm host node id
|
|
* - type: String - vm type (lxc, qemu)
|
|
* - vmid: Number - vm id number
|
|
* - cores: Number - new number of cores for instance
|
|
* - memory: Number - new amount of memory for instance
|
|
* - swap: Number, optional - new amount of swap for instance
|
|
* responses:
|
|
* - 200: Object(pve_auth_object)
|
|
* - 401: {auth: false, path: String}
|
|
* - 500: {request: Object, error: String}
|
|
* - 500: Object(pve_task_object)
|
|
*/
|
|
app.post("/api/instance/resources", async (req, res) => {
|
|
// check auth for specific instance
|
|
let vmpath = `/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`;
|
|
let auth = await checkAuth(req.cookies, res, vmpath);
|
|
if (!auth) { return; }
|
|
// get current config
|
|
let currentConfig = await requestPVE(`/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}/config`, "GET", null, null, pveAPIToken);
|
|
let request = {
|
|
cores: Number(req.body.cores) - Number(currentConfig.data.data.cores),
|
|
memory: Number(req.body.memory) - Number(currentConfig.data.data.memory)
|
|
};
|
|
if (type === "lxc") {
|
|
request.swap = Number(req.body.swap) - Number(currentConfig.data.data.swap);
|
|
}
|
|
// check resource approval
|
|
if (!await approveResources(req, req.cookies.username, request)) {
|
|
res.status(500).send({ request: request, error: `Could not fulfil request` });
|
|
res.end();
|
|
return;
|
|
}
|
|
// setup action
|
|
let action = JSON.stringify({ cores: req.body.cores, memory: req.body.memory });
|
|
let method = req.body.type === "qemu" ? "POST" : "PUT";
|
|
// commit action
|
|
let result = await requestPVE(`${vmpath}/config`, method, req.cookies, action, pveAPIToken);
|
|
await handleResponse(req.body.node, result, res);
|
|
});
|
|
|
|
/**
|
|
* POST - create new instance
|
|
* request:
|
|
* - node: String - vm host node id
|
|
* - type: String - vm type (lxc, qemu)
|
|
* - vmid: Number - vm id number for instance
|
|
* - hostname: String, optional- hostname for lxc instance
|
|
* - name: String, optional - hostname for qemu instance
|
|
* - cores: Number - number of cores for instance
|
|
* - memory: Number - amount of memory for instance
|
|
* - swap: Number, optional - amount of swap for lxc instance
|
|
* - password: String, optional - password for lxc instance
|
|
* - ostemplate: String, optional - os template name for lxc instance
|
|
* - rootfslocation: String, optional - storage name for lxc instance rootfs
|
|
* - rootfssize: Number, optional, - size of lxc instance rootfs
|
|
* responses:
|
|
* - 200: Object(pve_auth_object)
|
|
* - 401: {auth: false, path: String}
|
|
* - 500: {error: String}
|
|
* - 500: {request: Object, error: String}
|
|
* - 500: Object(pve_task_object)
|
|
*/
|
|
app.post("/api/instance", async (req, res) => {
|
|
// check auth
|
|
let auth = await checkAuth(req.cookies, res);
|
|
if (!auth) { return; }
|
|
// setup request
|
|
let request = {
|
|
cores: Number(req.body.cores),
|
|
memory: Number(req.body.memory)
|
|
};
|
|
// setup action
|
|
let user = await getUserConfig(req.cookies.username);
|
|
let vmid = Number.parseInt(req.body.vmid);
|
|
let vmid_min = user.instances.vmid.min;
|
|
let vmid_max = user.instances.vmid.max;
|
|
// check vmid is within allowed range
|
|
if (vmid < vmid_min || vmid > vmid_max) {
|
|
res.status(500).send({ error: `Requested vmid ${vmid} is out of allowed range [${vmid_min},${vmid_max}]` });
|
|
res.end();
|
|
return;
|
|
}
|
|
// check node is within allowed list
|
|
if (!user.nodes.includes(req.body.node)) {
|
|
res.status(500).send({ error: `Requested node ${req.body.node} is not in allowed nodes [${user.nodes}]` });
|
|
res.end();
|
|
return;
|
|
}
|
|
let action = {
|
|
vmid: req.body.vmid,
|
|
cores: req.body.cores,
|
|
memory: req.body.memory,
|
|
pool: user.instances.pool
|
|
};
|
|
for (let key of Object.keys(user.instances.templates[req.body.type])) {
|
|
action[key] = user.instances.templates[req.body.type][key];
|
|
}
|
|
if (req.body.type === "lxc") {
|
|
action.swap = req.body.swap;
|
|
action.hostname = req.body.name;
|
|
action.unprivileged = 1;
|
|
action.features = "nesting=1";
|
|
action.password = req.body.password;
|
|
action.ostemplate = req.body.ostemplate;
|
|
action.rootfs = `${req.body.rootfslocation}:${req.body.rootfssize}`;
|
|
request[req.body.rootfslocation] = req.body.rootfssize;
|
|
}
|
|
else {
|
|
action.name = req.body.name;
|
|
}
|
|
// check resource approval
|
|
if (!await approveResources(req, req.cookies.username, request)) { // check resource approval
|
|
res.status(500).send({ request: request, error: `Not enough resources to satisfy request.` });
|
|
res.end();
|
|
return;
|
|
}
|
|
action = JSON.stringify(action);
|
|
// commit action
|
|
let result = await requestPVE(`/nodes/${req.body.node}/${req.body.type}`, "POST", req.cookies, action, pveAPIToken);
|
|
await handleResponse(req.body.node, result, res);
|
|
});
|
|
|
|
/**
|
|
* DELETE - destroy existing instance
|
|
* request:
|
|
* - node: String - vm host node id
|
|
* - type: String - vm type (lxc, qemu)
|
|
* - vmid: Number - vm id number to destroy
|
|
* responses:
|
|
* - 200: Object(pve_auth_object)
|
|
* - 401: {auth: false, path: String}
|
|
* - 500: Object(pve_task_object)
|
|
*/
|
|
app.delete("/api/instance", async (req, res) => {
|
|
// check auth for specific instance
|
|
let vmpath = `/nodes/${req.body.node}/${req.body.type}/${req.body.vmid}`;
|
|
let auth = await checkAuth(req.cookies, res, vmpath);
|
|
if (!auth) { return; }
|
|
// commit action
|
|
let result = await requestPVE(vmpath, "DELETE", req.cookies, null, pveAPIToken);
|
|
await handleResponse(req.body.node, result, res);
|
|
});
|
|
|
|
app.listen(listenPort, () => {
|
|
console.log(`proxmoxaas-api v${api.version} listening on port ${listenPort}`);
|
|
}); |