512 lines
17 KiB
JavaScript
512 lines
17 KiB
JavaScript
/*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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/*
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* Copyright 2016 Joyent, Inc.
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*
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* `triton instance create ...`
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*/
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var assert = require('assert-plus');
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var format = require('util').format;
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var tabula = require('tabula');
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var vasync = require('vasync');
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var common = require('../common');
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var distractions = require('../distractions');
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var errors = require('../errors');
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var mat = require('../metadataandtags');
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function do_create(subcmd, opts, args, cb) {
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var self = this;
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if (opts.help) {
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this.do_help('help', {}, [subcmd], cb);
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return;
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} else if (args.length !== 2) {
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return cb(new errors.UsageError('incorrect number of args'));
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}
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var log = this.top.log;
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var cloudapi = this.top.tritonapi.cloudapi;
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vasync.pipeline({arg: {}, funcs: [
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/* BEGIN JSSTYLED */
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/*
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* Parse --affinity options for validity to `ctx.affinities`.
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* Later (in `resolveLocality`) we'll translate this to locality hints
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* that CloudAPI speaks.
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*
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* Some examples. Inspired by
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* <https://docs.docker.com/swarm/scheduler/filter/#how-to-write-filter-expressions>
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*
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* instance==vm1
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* container==vm1 # alternative to 'instance'
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* inst==vm1 # alternative to 'instance'
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* inst=vm1 # '=' is shortcut for '=='
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* inst!=vm1 # '!='
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* inst==~vm1 # '~' for soft/non-strict
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* inst!=~vm1
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*
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* inst==vm* # globbing (not yet supported)
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* inst!=/vm\d/ # regex (not yet supported)
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*
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* some-tag!=db # tags (not yet supported)
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*
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* Limitations:
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* - no support for tags yet
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* - no globbing or regex yet
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* - we resolve name -> instance id *client-side* for now (until
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* CloudAPI supports that)
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* - Triton doesn't support mixed strict and non-strict, so we error
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* out on that. We *could* just drop the non-strict, but that is
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* slightly different.
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*/
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/* END JSSTYLED */
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function parseAffinity(ctx, next) {
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if (!opts.affinity) {
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next();
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return;
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}
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var affinities = [];
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// TODO: stricter rules on the value part
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// JSSTYLED
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var affinityRe = /((instance|inst|container)(==~|!=~|==|!=|=~|=))?(.*?)$/;
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for (var i = 0; i < opts.affinity.length; i++) {
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var raw = opts.affinity[i];
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var match = affinityRe.exec(raw);
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if (!match) {
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next(new errors.UsageError(format('invalid affinity: "%s"',
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raw)));
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return;
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}
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var key = match[2];
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if ([undefined, 'inst', 'container'].indexOf(key) !== -1) {
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key = 'instance';
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}
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assert.equal(key, 'instance');
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var op = match[3];
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if ([undefined, '='].indexOf(op) !== -1) {
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op = '==';
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}
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var strict = true;
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if (op[op.length - 1] === '~') {
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strict = false;
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op = op.slice(0, op.length - 1);
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}
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var val = match[4];
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// Guard against mixed strictness (Triton can't handle those).
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if (affinities.length > 0) {
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var lastAff = affinities[affinities.length - 1];
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if (strict !== lastAff.strict) {
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next(new errors.TritonError(format('mixed strict and '
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+ 'non-strict affinities are not supported: '
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+ '%j (%s) and %j (%s)',
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lastAff.raw,
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(lastAff.strict ? 'strict' : 'non-strict'),
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raw, (strict ? 'strict' : 'non-strict'))));
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return;
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}
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}
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affinities.push({
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raw: raw,
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key: key,
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op: op,
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strict: strict,
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val: val
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});
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}
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if (affinities.length) {
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log.trace({affinities: affinities}, 'affinities');
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ctx.affinities = affinities;
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}
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next();
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},
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/*
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* Determine `ctx.locality` according to what CloudAPI supports
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* based on `ctx.affinities` parsed earlier.
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*/
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function resolveLocality(ctx, next) {
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if (!ctx.affinities) {
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next();
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return;
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}
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var strict;
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var near = [];
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var far = [];
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vasync.forEachPipeline({
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inputs: ctx.affinities,
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func: function resolveAffinity(aff, nextAff) {
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assert.ok(['==', '!='].indexOf(aff.op) !== -1,
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'unexpected op: ' + aff.op);
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var nearFar = (aff.op == '==' ? near : far);
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strict = aff.strict;
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if (common.isUUID(aff.val)) {
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nearFar.push(aff.val);
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nextAff();
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} else {
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self.top.tritonapi.getInstance({
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id: aff.val,
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fields: ['id']
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}, function (err, inst) {
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if (err) {
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nextAff(err);
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} else {
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log.trace({val: aff.val, inst: inst.id},
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'resolveAffinity');
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nearFar.push(inst.id);
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nextAff();
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}
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});
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}
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}
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}, function (err) {
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if (err) {
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next(err);
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return;
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}
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ctx.locality = {
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strict: strict
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};
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if (near.length > 0) ctx.locality.near = near;
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if (far.length > 0) ctx.locality.far = far;
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log.trace({locality: ctx.locality}, 'resolveLocality');
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next();
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});
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},
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function loadMetadata(ctx, next) {
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mat.metadataFromOpts(opts, log, function (err, metadata) {
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if (err) {
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next(err);
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return;
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}
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if (metadata) {
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log.trace({metadata: metadata},
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'metadata loaded from opts');
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ctx.metadata = metadata;
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}
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next();
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});
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},
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function loadTags(ctx, next) {
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mat.tagsFromCreateOpts(opts, log, function (err, tags) {
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if (err) {
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next(err);
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return;
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}
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if (tags) {
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log.trace({tags: tags}, 'tags loaded from opts');
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ctx.tags = tags;
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}
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next();
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});
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},
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function getImg(ctx, next) {
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var _opts = {
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name: args[0],
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useCache: true
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};
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self.top.tritonapi.getImage(_opts, function (err, img) {
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if (err) {
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return next(err);
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}
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ctx.img = img;
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log.trace({img: img}, 'create-instance img');
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next();
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});
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},
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function getPkg(ctx, next) {
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if (args.length < 2) {
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return next();
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}
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var id = args[1];
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if (common.isUUID(id)) {
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ctx.pkg = {id: id};
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next();
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return;
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}
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self.top.tritonapi.getPackage(id, function (err, pkg) {
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if (err) {
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return next(err);
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}
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log.trace({pkg: pkg}, 'create-instance pkg');
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ctx.pkg = pkg;
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next();
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});
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},
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function getNets(ctx, next) {
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if (!opts.network) {
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return next();
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}
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// TODO: want an error or warning on no networks?
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ctx.nets = [];
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vasync.forEachPipeline({
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inputs: opts.network,
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func: function getOneNetwork(name, nextNet) {
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self.top.tritonapi.getNetwork(name, function (err, net) {
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if (err) {
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nextNet(err);
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} else {
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ctx.nets.push(net);
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nextNet();
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}
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});
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}
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}, next);
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},
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function createInst(ctx, next) {
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var createOpts = {
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name: opts.name,
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image: ctx.img.id,
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'package': ctx.pkg && ctx.pkg.id,
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networks: ctx.nets && ctx.nets.map(
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function (net) { return net.id; })
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};
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if (ctx.locality) {
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createOpts.locality = ctx.locality;
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}
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if (ctx.metadata) {
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Object.keys(ctx.metadata).forEach(function (key) {
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createOpts['metadata.'+key] = ctx.metadata[key];
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});
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}
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if (ctx.tags) {
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Object.keys(ctx.tags).forEach(function (key) {
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createOpts['tag.'+key] = ctx.tags[key];
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});
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}
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for (var i = 0; i < opts._order.length; i++) {
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var opt = opts._order[i];
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if (opt.key === 'firewall') {
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createOpts.firewall_enabled = opt.value;
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}
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}
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log.trace({dryRun: opts.dry_run, createOpts: createOpts},
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'create-instance createOpts');
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ctx.start = Date.now();
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if (opts.dry_run) {
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ctx.inst = {
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id: 'beefbeef-4c0e-11e5-86cd-a7fd38d2a50b',
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name: 'this-is-a-dry-run'
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};
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console.log('Creating instance %s (%s, %s@%s)',
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ctx.inst.name, ctx.inst.id,
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ctx.img.name, ctx.img.version);
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return next();
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}
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cloudapi.createMachine(createOpts, function (err, inst) {
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if (err) {
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next(new errors.TritonError(err,
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'error creating instance'));
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return;
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}
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ctx.inst = inst;
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if (opts.json) {
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console.log(JSON.stringify(inst));
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} else {
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console.log('Creating instance %s (%s, %s@%s%s)',
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inst.name, inst.id, ctx.img.name, ctx.img.version,
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inst.package ? format(', %s', inst.package) : '');
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}
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next();
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});
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},
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function maybeWait(ctx, next) {
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if (!opts.wait) {
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return next();
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}
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// 1 'wait': no distraction.
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// >1 'wait': distraction, pass in the N.
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var distraction;
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if (process.stderr.isTTY && opts.wait.length > 1) {
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distraction = distractions.createDistraction(opts.wait.length);
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}
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// Dry-run: fake wait for a few seconds.
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var waiter = (opts.dry_run ?
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function dryWait(waitOpts, waitCb) {
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setTimeout(function () {
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ctx.inst.state = 'running';
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waitCb(null, ctx.inst);
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}, 5000);
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}
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: cloudapi.waitForMachineStates.bind(cloudapi));
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waiter({
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id: ctx.inst.id,
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states: ['running', 'failed']
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}, function (err, inst) {
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if (distraction) {
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distraction.destroy();
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}
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if (err) {
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return next(err);
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}
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if (opts.json) {
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console.log(JSON.stringify(inst));
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} else if (inst.state === 'running') {
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var dur = Date.now() - ctx.start;
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console.log('Created instance %s (%s) in %s',
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inst.name, inst.id, common.humanDurationFromMs(dur));
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}
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if (inst.state !== 'running') {
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next(new Error(format('failed to create instance %s (%s)',
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inst.name, inst.id)));
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} else {
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next();
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}
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});
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}
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]}, function (err) {
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cb(err);
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});
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}
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do_create.options = [
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{
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names: ['help', 'h'],
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type: 'bool',
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help: 'Show this help.'
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},
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{
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group: 'Create options'
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},
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{
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names: ['name', 'n'],
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helpArg: 'NAME',
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type: 'string',
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help: 'Instance name. If not given, one will be generated server-side.'
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},
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{
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// TODO: add boolNegationPrefix:'no-' when that cmdln pull is in
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names: ['firewall'],
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type: 'bool',
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help: 'Enable Cloud Firewall on this instance. See ' +
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'<https://docs.joyent.com/public-cloud/network/firewall>'
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},
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{
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names: ['metadata', 'm'],
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type: 'arrayOfString',
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helpArg: 'DATA',
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help: 'Add metadata when creating the instance. Metadata are ' +
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'key/value pairs available on the instance API object as the ' +
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'"metadata" field, and inside the instance via the "mdata-*" ' +
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'commands. DATA is one of: a "key=value" string (bool and ' +
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'numeric "value" are converted to that type), a JSON object ' +
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'(if first char is "{"), or a "@FILE" to have metadata be ' +
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'loaded from FILE. This option can be used multiple times.'
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},
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{
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names: ['metadata-file', 'M'],
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type: 'arrayOfString',
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helpArg: 'KEY=FILE',
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help: 'Set a metadata key KEY from the contents of FILE.'
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},
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{
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names: ['script'],
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type: 'arrayOfString',
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helpArg: 'FILE',
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help: 'Load a file to be used for the "user-script" metadata key. In ' +
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'Joyent-provided images, the user-script is run at every boot ' +
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'of the instance. This is a shortcut for `-M user-script=FILE`.'
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},
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{
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names: ['tag', 't'],
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type: 'arrayOfString',
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helpArg: 'TAG',
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help: 'Add a tag when creating the instance. Tags are ' +
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'key/value pairs available on the instance API object as the ' +
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'"tags" field. TAG is one of: a "key=value" string (bool and ' +
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'numeric "value" are converted to that type), a JSON object ' +
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'(if first char is "{"), or a "@FILE" to have tags be ' +
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'loaded from FILE. This option can be used multiple times.'
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},
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{
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names: ['network', 'N'],
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type: 'arrayOfCommaSepString',
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helpArg: 'NETWORK',
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help: 'One or more comma-separated networks (ID, name or short id). ' +
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'This option can be used multiple times.',
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completionType: 'tritonnetwork'
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},
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{
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names: ['affinity', 'a'],
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type: 'arrayOfString',
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helpArg: 'RULE',
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help: 'Affinity rules for selecting a server for this instance. ' +
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'Rules have one of the following forms: `instance==INST` (the ' +
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'new instance must be on the same server as INST), ' +
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'`instance!=INST` (new inst must *not* be on the same server as ' +
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'INST), `instance==~INST` (*attempt* to place on the same server ' +
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'as INST), or `instance!=~INST` (*attempt* to place on a server ' +
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'other than INST\'s). `INST` is an existing instance name or ' +
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'id. There are two shortcuts: `inst` may be used instead of ' +
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'`instance` and `instance==INST` can be shortened to just ' +
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'`INST`. Use this option more than once for multiple rules.',
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completionType: 'tritonaffinityrule'
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},
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{
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group: 'Other options'
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},
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{
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names: ['dry-run'],
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type: 'bool',
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help: 'Go through the motions without actually creating.'
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},
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{
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names: ['wait', 'w'],
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type: 'arrayOfBool',
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help: 'Wait for the creation to complete. Use multiple times for a ' +
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'spinner.'
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},
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{
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names: ['json', 'j'],
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type: 'bool',
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help: 'JSON stream output.'
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}
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];
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do_create.help = (
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/* BEGIN JSSTYLED */
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'Create a new instance.\n' +
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'\n' +
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'Usage:\n' +
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' {{name}} create [<options>] IMAGE PACKAGE\n' +
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'\n' +
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'{{options}}'
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/* END JSSTYLED */
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);
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do_create.helpOpts = {
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maxHelpCol: 16
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};
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do_create.completionArgtypes = ['tritonimage', 'tritonpackage', 'none'];
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module.exports = do_create;
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