open-nomad/ui/app/components/task-file.js
2019-07-30 17:22:50 -07:00

135 lines
3.6 KiB
JavaScript

import { inject as service } from '@ember/service';
import Component from '@ember/component';
import { computed } from '@ember/object';
import RSVP from 'rsvp';
import { logger } from 'nomad-ui/utils/classes/log';
import timeout from 'nomad-ui/utils/timeout';
export default Component.extend({
token: service(),
classNames: ['boxed-section', 'task-log'],
allocation: null,
task: null,
file: null,
// When true, request logs from the server agent
useServer: false,
// When true, logs cannot be fetched from either the client or the server
noConnection: false,
clientTimeout: 1000,
serverTimeout: 5000,
didReceiveAttrs() {
if (this.allocation && this.task) {
// this.send('toggleStream');
}
},
didInsertElement() {
this.fillAvailableHeight();
},
windowResizeHandler() {
run.once(this, this.fillAvailableHeight);
},
fillAvailableHeight() {
// This math is arbitrary and far from bulletproof, but the UX
// of having the log window fill available height is worth the hack.
const margins = 30 + 30; // Account for padding and margin on either side of the CLI
const cliWindow = this.$('.cli-window');
cliWindow.height(window.innerHeight - cliWindow.offset().top - margins);
},
fileUrl: computed('task.name', 'allocation.id', 'file', function() {
return `/v1/client/fs/cat/${this.allocation.id}?path=${this.task.name}/${this.file}`;
}),
logUrl: computed('allocation.id', 'allocation.node.httpAddr', 'useServer', function() {
const address = this.get('allocation.node.httpAddr');
const allocation = this.get('allocation.id');
const url = `/v1/client/fs/logs/${allocation}`;
return this.useServer ? url : `//${address}${url}`;
}),
logParams: computed('task', 'mode', function() {
return {
task: this.task,
type: this.mode,
};
}),
logger: logger('logUrl', 'logParams', function logFetch() {
// If the log request can't settle in one second, the client
// must be unavailable and the server should be used instead
const timing = this.useServer ? this.serverTimeout : this.clientTimeout;
return url =>
RSVP.race([this.token.authorizedRequest(url), timeout(timing)]).then(
response => response,
error => {
if (this.useServer) {
this.set('noConnection', true);
} else {
this.send('failoverToServer');
this.stream.perform();
}
throw error;
}
);
}),
head: task(function*() {
yield this.get('logger.gotoHead').perform();
run.scheduleOnce('afterRender', () => {
this.$('.cli-window').scrollTop(0);
});
}),
tail: task(function*() {
yield this.get('logger.gotoTail').perform();
run.scheduleOnce('afterRender', () => {
const cliWindow = this.$('.cli-window');
cliWindow.scrollTop(cliWindow[0].scrollHeight);
});
}),
stream: task(function*() {
this.logger.on('tick', () => {
run.scheduleOnce('afterRender', () => {
const cliWindow = this.$('.cli-window');
cliWindow.scrollTop(cliWindow[0].scrollHeight);
});
});
yield this.logger.startStreaming();
this.logger.off('tick');
}),
willDestroy() {
this.logger.stop();
},
actions: {
setMode(mode) {
this.logger.stop();
this.set('mode', mode);
this.stream.perform();
},
toggleStream() {
if (this.get('logger.isStreaming')) {
this.logger.stop();
} else {
this.stream.perform();
}
},
failoverToServer() {
this.set('useServer', true);
},
},
});