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Handle job creation with the new Job class.
This commit is contained in:
Stephan Porada
parent
175dbceac6
commit
6f5bf674c6
@ -3,10 +3,13 @@ from flask import current_app, flash, redirect, render_template, url_for
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from . import services
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from flask_login import current_user, login_required
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from .forms import NewOCRJobForm, NewNLPJobForm
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from ..models import Job
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from ..import swarm
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from .. import db
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from threading import Thread
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import hashlib
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import os
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import json
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@services.route('/ocr', methods=['GET', 'POST'])
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@ -15,24 +18,23 @@ def ocr():
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new_ocr_job_form = NewOCRJobForm()
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if new_ocr_job_form.validate_on_submit():
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app = current_app._get_current_object()
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id = hashlib.md5(
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(current_user.username + '_' + datetime.now().isoformat()).encode()
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).hexdigest()
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'''
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' TODO: Implement a Job class. For now a dictionary representation
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' is enough.
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'''
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job = {'creator': current_user.id,
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'id': id,
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'requested_cpus': 2,
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'requested_memory': 2048,
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'service': 'ocr',
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'service_args': {'lang': new_ocr_job_form.language.data,
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'version': new_ocr_job_form.version.data
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},
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'status': 'queued'
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}
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dir = os.path.join(app.config['OPAQUE_STORAGE'], 'jobs', id)
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ocr_job = Job()
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ocr_job.title = new_ocr_job_form.title.data
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ocr_job.description = new_ocr_job_form.description.data
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ocr_job.user_id = current_user.id
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ocr_job.creation_date = datetime.utcnow()
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ocr_job.service = "ocr"
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ocr_job.ressources = json.dumps({"n_cores": 2,
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"mem_mb": 4096})
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ocr_job.service_args = json.dumps({"args": ["--keep-intermediates",
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"--skip-binarisation"],
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"lang": new_ocr_job_form.language.data,
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"version": new_ocr_job_form.version.data})
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ocr_job.status = "queued"
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db.session.add(ocr_job)
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db.session.commit()
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dir = os.path.join(app.config['OPAQUE_STORAGE'], 'jobs', str(ocr_job.id))
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try:
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os.makedirs(dir)
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@ -47,7 +49,7 @@ def ocr():
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' NOTE: Using self created threads is just for testing purpose as
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' there is no scheduler available.
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'''
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thread = Thread(target=swarm.run, args=(job,))
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thread = Thread(target=swarm.run, args=(ocr_job,))
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thread.start()
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flash('Job created!')
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return redirect(url_for('services.ocr'))
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@ -68,21 +70,21 @@ def nlp():
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id = hashlib.md5(
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(current_user.username + '_' + datetime.now().isoformat()).encode()
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).hexdigest()
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'''
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' TODO: Implement a Job class. For now a dictionary representation
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' is enough.
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'''
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job = {'creator': current_user.id,
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'id': id,
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'requested_cpus': 2,
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'requested_memory': 2048,
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'service': 'nlp',
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'service_args': {'lang': new_nlp_job_form.language.data,
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'version': new_nlp_job_form.version.data
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},
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'status': 'queued'
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}
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dir = os.path.join(app.config['OPAQUE_STORAGE'], 'jobs', id)
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nlp_job = Job()
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nlp_job.title = new_nlp_job_form.title.data
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nlp_job.description = new_nlp_job_form.description.data
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nlp_job.user_id = current_user.id
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nlp_job.creation_date = datetime.utcnow()
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nlp_job.service = "nlp"
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nlp_job.ressources = json.dumps({"n_cores": 2,
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"mem_mb": 4096})
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nlp_job.service_args = json.dumps({"args": [],
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"lang": new_nlp_job_form.language.data,
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"version": new_nlp_job_form.version.data})
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nlp_job.status = "queued"
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db.session.add(nlp_job)
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db.session.commit()
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dir = os.path.join(app.config['OPAQUE_STORAGE'], 'jobs', str(nlp_job.id))
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try:
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os.makedirs(dir)
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@ -97,7 +99,7 @@ def nlp():
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' NOTE: Using self created threads is just for testing purpose as
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' there is no scheduler available.
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'''
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thread = Thread(target=swarm.run, args=(job,))
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thread = Thread(target=swarm.run, args=(nlp_job,))
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thread.start()
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flash('Job created!')
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return redirect(url_for('services.nlp'))
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28
app/swarm.py
28
app/swarm.py
@ -1,5 +1,6 @@
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import docker
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import time
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import json
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class Swarm:
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@ -19,22 +20,27 @@ class Swarm:
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'''
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def run(self, job):
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'''
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Input is a job object. From this the _command is built.
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'''
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# Prepare argument values needed for the service creation.
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_command = job['service'] \
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+ ' -i /files/{}'.format(job['id']) \
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+ ' -l {}'.format(job['service_args']['lang']) \
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+ ' -o /files/{}/output'.format(job['id'])
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# + ' --keep-intermediates'
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service_args = json.loads(job.service_args)
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ressources = json.loads(job.ressources)
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_command = (job.service
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+ ' -i /files/{}'.format(job.id)
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+ ' -l {}'.format(service_args['lang'])
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+ ' -o /files/{}/output'.format(job.id)
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+ ' ' + ' '.join(service_args['args']))
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_constraints = ['node.role==worker']
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_image = 'gitlab.ub.uni-bielefeld.de:4567/sfb1288inf/{}:{}'.format(
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job['service'],
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job['service_args']['version']
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job.service,
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service_args['version']
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)
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_labels = {'service': job['service']}
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_labels = {'service': job.service}
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_mounts = [
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'/home/compute/mnt/opaque/jobs:/files:rw',
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]
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_name = job['id']
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_name = job.id
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'''
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' The Docker SDK for Python expects the cpu_reservation value to be
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' scaled to nanos (10^9). Because the job object contains unscaled
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@ -46,8 +52,8 @@ class Swarm:
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' in megabytes, it is also necessary to convert the value.
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'''
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_resources = docker.types.Resources(
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cpu_reservation=job['requested_cpus'] * (10 ** 9),
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mem_reservation=job['requested_memory'] * (10 ** 6)
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cpu_reservation=ressources['n_cores'] * (10 ** 9),
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mem_reservation=ressources['mem_mb'] * (10 ** 6)
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)
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_restart_policy = docker.types.RestartPolicy(condition='none')
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'''
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