CoCalc -- smc-vm-manager.coffee

Path: cocalc/src / smc-hub / smc-vm-manager.coffee
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# Deprecated -- tons of work, but really Kubernetes is the way to go...
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###########################
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# Command line interface for VM manager
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###########################
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{join}      = require('path')
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winston     = require('winston')
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winston.remove(winston.transports.Console)
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winston.add(winston.transports.Console, {level: 'debug', timestamp:true, colorize:true})
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async     = require('async')
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misc_node = require('smc-util-node/misc_node')
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program   = require('commander')
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LOGS = join(process.env.HOME, 'logs')
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program.usage('[start/stop/restart/status] [options]')
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    .option('--pidfile [string]', 'store pid in this file', String, "#{LOGS}/smc-vm-manager.pid")
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    .option('--logfile [string]', 'write log to this file', String, "#{LOGS}/smc-vm-manager.log")
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    .option('--db [string]', 'comma separated database servers', String, process.env.SMC_DB_HOSTS ? 'db0')
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    .option('-e')   # gets passed by coffee -e
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    .parse(process.argv)
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db_hosts = program.db.split(',')
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start_server = () ->
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    require('smc-hub/rethink').rethinkdb
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        hosts : db_hosts
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        pool  : 1
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        cb    : (err, db) =>
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            g = require('smc-hub/smc_gcloud.coffee').gcloud(db:db)
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            vms = g.vm_manager()
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main = () ->
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    winston.debug("running as a deamon")
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    # run as a server/daemon (otherwise, is being imported as a library)
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    process.addListener "uncaughtException", (err) ->
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        winston.debug("BUG ****************************************************************************")
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        winston.debug("Uncaught exception: " + err)
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        winston.debug(err.stack)
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        winston.debug("BUG ****************************************************************************")
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    async.series([
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        (cb) ->
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            misc_node.ensure_containing_directory_exists(program.pidfile, cb)
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        (cb) ->
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            misc_node.ensure_containing_directory_exists(program.logfile, cb)
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        (cb) ->
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            daemon  = require("start-stop-daemon")  # don't import unless in a script; otherwise breaks in node v6+
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            daemon({max:9999, pidFile:program.pidfile, outFile:program.logfile, errFile:program.logfile, logFile:'/dev/null'}, start_server)
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    ])
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if program._name.split('.')[0] == 'smc-vm-manager'
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    main()
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