fabfile.py 6.7 KB
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#!/bin/echo Usage: fab --list -f
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# Copyright 2014 Budapest University of Technology and Economics (BME IK)
#
# This file is part of CIRCLE Cloud.
#
# CIRCLE is free software: you can redistribute it and/or modify it under
# the terms of the GNU General Public License as published by the Free
# Software Foundation, either version 3 of the License, or (at your option)
# any later version.
#
# CIRCLE is distributed in the hope that it will be useful, but WITHOUT ANY
# WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
# FOR A PARTICULAR PURPOSE.  See the GNU General Public License for more
# details.
#
# You should have received a copy of the GNU General Public License along
# with CIRCLE.  If not, see <http://www.gnu.org/licenses/>.

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import contextlib
import datetime

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from fabric.api import env, run, settings, sudo, prefix, cd, execute
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from fabric.context_managers import shell_env
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from fabric.decorators import roles, parallel
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env.roledefs['portal'] = ['localhost']
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try:
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    import django
    django.setup()
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    from vm.models import Node as _Node
    from storage.models import DataStore as _DataStore
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except Exception as e:
    print e
else:
    env.roledefs['node'] = [unicode(n.host.ipv4)
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                            for n in _Node.objects.filter(enabled=True)]
    env.roledefs['storage'] = [_DataStore.objects.get().hostname]
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def update_all():
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    "Update and restart portal+manager, nodes and storage"
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    execute(stop_portal)
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    execute(parallel(update_node))
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    execute(update_storage)
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    execute(update_portal)
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def pip(env, req):
    "Install pip requirements"
    with _workon(env):
        run("pip install -r %s" % req)


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def bower(component=None):
    "Install bower component"
    with cd("~/circle/circle"):
        if component:
            run("bower install %s" % component)
        else:
            run("bower install")


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@roles('portal')
def migrate():
    "Run db migrations"
    with _workon("circle"), cd("~/circle/circle"):
        run("./manage.py migrate")


@roles('portal')
def compile_js():
    "Generate JS translation objects"
    with _workon("circle"), cd("~/circle/circle"):
        run("./manage.py compilejsi18n -o dashboard/static/jsi18n")


@roles('portal')
def collectstatic():
    "Collect static files"
    with _workon("circle"), cd("~/circle/circle"):
        run("./manage.py collectstatic --noinput")


@roles('portal')
def compile_messages():
    "Generate MO translation objects"
    with _workon("circle"), cd("~/circle/circle"):
        run("./manage.py compilemessages")


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def compile_less():
    "Compile LESS files"
    with _workon("circle"), cd("~/circle/circle"):
        run("./manage.py compileless")


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@roles('portal')
def compile_things():
    "Compile translation and collect static files"
    compile_js()
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    compile_less()
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    collectstatic()
    compile_messages()


@roles('portal')
def make_messages():
    "Update PO translation templates and commit"
    with _workon("circle"), cd("~/circle/circle"):
        run("git status")
        run("./manage.py makemessages -d djangojs -a --ignore=jsi18n/*")
        run("./manage.py makemessages -d django -a")
        run("git commit -avm 'update PO templates'")


@roles('portal')
def test(test=""):
    "Run portal tests"
    with _workon("circle"), cd("~/circle/circle"):
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        if test == "f":
            test = "--failed"
        else:
            test += " --with-id"
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        run("./manage.py test --settings=circle.settings.test %s" % test)


def pull(dir="~/circle/circle"):
    "Pull from upstream branch (stash any changes)"
    now = unicode(datetime.datetime.now())
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    with cd(dir), shell_env(GIT_AUTHOR_NAME="fabric",
                            GIT_AUTHOR_EMAIL="fabric@local",
                            GIT_COMMITTER_NAME="fabric",
                            GIT_COMMITTER_EMAIL="fabric@local"):
        run("git stash save update %s" % now)
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        run("git pull --ff-only")


@roles('portal')
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def update_portal(test=False, git=True):
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    "Update and restart portal+manager"
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    with _stopped("portal", "manager"):
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        if git:
            pull()
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        cleanup()
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        pip("circle", "~/circle/requirements.txt")
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        bower()
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        migrate()
        compile_things()
        if test:
            test()


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@roles('portal')
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def build_portal():
    "Update portal without pulling from git"
    return update_portal(False, False)


@roles('portal')
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def stop_portal(test=False):
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    "Stop portal and manager"
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    _stop_services("portal", "manager")
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@roles('node')
def update_node():
    "Update and restart nodes"
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    with _stopped("node", "agentdriver", "monitor-client"):
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        pull("~/vmdriver")
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        pip("vmdriver", "~/vmdriver/requirements/production.txt")
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        _cleanup("~/vmdriver")

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        pull("~/agentdriver")
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        pip("agentdriver", "~/agentdriver/requirements.txt")
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        _cleanup("~/agentdriver")

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        pull("~/monitor-client")
        pip("monitor-client", "~/monitor-client/requirements.txt")
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        _cleanup("~/monitor-client")
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@parallel
@roles('storage')
def update_storage():
    "Update and restart storagedriver"
    with _stopped("storage"):
        pull("~/storagedriver")
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        pip("storagedriver", "~/storagedriver/requirements/production.txt")
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@parallel
@roles('node')
def checkout(vmdriver="master", agent="master"):
    """Checkout specific branch on nodes"""
    with settings(warn_only=True), cd("~/vmdriver"):
        run("git checkout %s" % vmdriver)
    with settings(warn_only=True), cd("~/agentdriver"):
        run("git checkout %s" % agent)
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@roles('portal')
def cleanup():
    "Clean pyc files of portal"
    _cleanup()


def _cleanup(dir="~/circle/circle"):
    "Clean pyc files"
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    with cd(dir):
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        run("find -name '*.py[co]' -exec rm -f {} +")


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def _stop_services(*services):
    "Stop given services (warn only if not running)"
    with settings(warn_only=True):
        for service in reversed(services):
            sudo("stop %s" % service)


def _start_services(*services):
    for service in services:
        sudo("start %s" % service)


def _restart_service(*services):
    "Stop and start services"
    _stop_services(*services)
    _start_services(*services)


@contextlib.contextmanager
def _stopped(*services):
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    _stop_services(*services)
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    yield
    _start_services(*services)


def _workon(name):
    return prefix("source ~/.virtualenvs/%s/bin/activate && "
                  "source ~/.virtualenvs/%s/bin/postactivate" % (name, name))
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@roles('portal')
def install_bash_completion_script():
    sudo("wget https://raw.githubusercontent.com/marcelor/fabric-bash-"
         "autocompletion/48baf5735bafbb2be5be8787d2c2c04a44b6cdb0/fab "
         "-O /etc/bash_completion.d/fab")
    print("To have bash completion instantly, run\n"
          "  source /etc/bash_completion.d/fab")