skynet-webportal/packages/health-check/bin/cli

#!/usr/bin/env node

process.env.NODE_ENV = process.env.NODE_ENV || "production";

require("yargs/yargs")(process.argv.slice(2))
  .help()
  .demandCommand()
  .strict(true)
  .command(
    "enable",
    "Mark portal as enabled",
    () => {},
    () => {
      const db = require("../src/db");

      db.set("disabled", false).write();
    }
  )
  .command(
    "disable <reason>",
    "Mark portal as disabled (provide meaningful reason)",
    () => {},
    ({ reason }) => {
      const db = require("../src/db");

      db.set("disabled", reason).write();
    }
  )
  .command(
    "run <type>",
    "Skynet portal health checks",
    (yargs) => {
      yargs
        .positional("type", {
          describe: "Type of checks to run",
          type: "string",
          choices: ["critical", "extended"],
        })
        .option("portal-url", {
          describe: "Skynet portal url",
          default: process.env.SKYNET_PORTAL_API || "https://siasky.net",
          type: "string",
        })
        .option("state-dir", {
          describe: "State directory",
          default: process.env.STATE_DIR || "state",
          type: "string",
        });
    },
    async ({ type, portalUrl, stateDir }) => {
      process.env.SKYNET_PORTAL_API = portalUrl;
      process.env.STATE_DIR = stateDir;

      const util = require("util");
      const { getYesterdayISOString } = require("../src/utils");
      const createMiddleware = require("../src/checks/middleware");
      const db = require("../src/db");
      const checks = require(`./src/checks/${type}`);
      const middleware = await createMiddleware();

      const entry = {
        date: new Date().toISOString(),
        checks: (await Promise.all(checks.map((check) => new Promise(check)))).map(middleware),
      };

      db.read() // read before writing to make sure no external changes are overwritten
        .get(type) // get the list of records of given type
        .push(entry) // insert new record
        .remove(({ date }) => date < getYesterdayISOString()) // drop old records
        .write();

      // exit with code 1 if any of the checks report failure
      if (entry.checks.some(({ up }) => !up)) {
        console.log(
          util.inspect(
            entry.checks.filter(({ up }) => !up),
            { colors: true, depth: 7 } // increase depth to ensure errors are printed
          )
        );
        process.exit(1);
      }
    }
  ).argv;