open-nomad/ui/app/components/task-log.js

99 lines
2.6 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';
import { AbortController } from 'fetch';
export default Component.extend({
token: service(),
classNames: ['boxed-section', 'task-log'],
allocation: null,
task: 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,
isStreaming: true,
streamMode: 'streaming',
mode: 'stdout',
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 aborter = new AbortController();
const timing = this.useServer ? this.serverTimeout : this.clientTimeout;
// Capture the state of useServer at logger create time to avoid a race
// between the stdout logger and stderr logger running at once.
const useServer = this.useServer;
return url =>
RSVP.race([
this.token.authorizedRequest(url, { signal: aborter.signal }),
timeout(timing),
]).then(
response => {
return response;
},
error => {
aborter.abort();
if (useServer) {
this.set('noConnection', true);
} else {
this.send('failoverToServer');
}
throw error;
}
);
}),
actions: {
setMode(mode) {
if (this.mode === mode) return;
this.logger.stop();
this.set('mode', mode);
},
toggleStream() {
this.set('streamMode', 'streaming');
this.toggleProperty('isStreaming');
},
gotoHead() {
this.set('streamMode', 'head');
this.set('isStreaming', false);
},
gotoTail() {
this.set('streamMode', 'tail');
this.set('isStreaming', false);
},
failoverToServer() {
this.set('useServer', true);
},
},
});