==== TODO ====
* use format_html_join for orchestration email alerts

* enforce an emergency email contact and account to contact contacts about problems when mailserver is down

* add `BackendLog` retry action

* webmail identities and addresses

* Permissions .filter_queryset()

* env vars instead of multiple settings files: https://devcenter.heroku.com/articles/config-vars ?

* backend logs with hal logo

* help_text on readonly_fields specialy Bill.state. (eg. A bill is in OPEN state when bla bla )

* create log file at /var/log/orchestra.log and rotate

* order.register_at
    @property
    def register_on(self):
        return order.register_at.date()

* mail backend related_models = ('resources__content_type') ??

* Maildir billing tests/ webdisk billing tests (avg metric)

* when using modeladmin to store shit like self.account, make sure to have a cleanslate in each request? no, better reuse the last one

* jabber with mailbox accounts (dovecot mail notification)

* rename accounts register to "account", and reated api and admin references

* AccountAdminMixin auto adds 'account__name' on searchfields

* What fields we really need on contacts? name email phone and what more?

* Redirect junk emails and delete every 30 days?

* DOC: Complitely decouples scripts execution, billing, service definition

* init.d celery scripts
    -# Required-Start:    $network $local_fs $remote_fs postgresql celeryd
    -# Required-Stop:     $network $local_fs $remote_fs postgresql celeryd

* regenerate virtual_domains every time (configure a separate file for orchestra on postfix)

* Backend optimization
    * fields = ()
    * ignore_fields = ()
    * based on a merge set of save(update_fields)

* proforma without billing contact?

* print open invoices as proforma?

* env ORCHESTRA_MASTER_SERVER='test1.orchestra.lan' ORCHESTRA_SECOND_SERVER='test2.orchestra.lan' ORCHESTRA_SLAVE_SERVER='test3.orchestra.lan' python3 manage.py test orchestra.contrib.domains.tests.functional_tests.tests:AdminBind9BackendDomainTest --nologcapture --keepdb

* ForeignKey.swappable
* Field.editable
* ManyToManyField.symmetrical = False (user group)

* REST PERMISSIONS

* caching based on "def text2int(textnum, numwords={}):"

* sync() ServiceController method that synchronizes orchestra and servers (delete or import)

* consider removing mailbox support on forward (user@pangea.org instead)

* Databases.User add reverse M2M databases widget (like mailbox.addresses)

* Grant permissions to systemusers

* Make one dedicated CGI user for each account only for CGI execution (fpm/fcgid). Different from the files owner, and without W permissions, so attackers can not inject backdors and malware.

* resource min max allocation with validation

* domain validation parse named-checzone output to assign errors to fields

* Directory Protection on webapp and use webapp path as base path (validate)

* validate systemuser.home on server-side

* webapp backend option compatibility check? raise exception, missconfigured error

* admin systemuser home/directory, add default home and empty directory with has_shell on admin

* Resource used_list_display=True, allocated_list_displat=True, allow resources to show up on list_display

* BackendLog.updated_at (tasks that run over several minutes when finished they do not appear first on the changelist) (like celery tasks.when)

* Periodic task for cleaning old monitoring data

* Create an admin service_view with icons (like SaaS app)

* Resource graph for each related object

* SaaS model splitted into SaaSUser and SaaSSite? inherit from SaaS, proxy model?

* prevent @pangea.org email addresses on contacts, enforce at least one email without @pangea.org

* forms autocomplete="off", doesn't work in chrome

ln -s /proc/self/fd /dev/fd


POST INSTALL
------------

* Generate a password-less ssh key, and copy it to the servers you want to orchestrate.
ssh-keygen
ssh-copy-id root@<server-address>

Php binaries should have this format: /usr/bin/php5.2-cgi


* logs on panel/logs/ ? mkdir ~webapps, backend post save signal? 
* <IfModule security2_module> and other IfModule on backend SecRule

* Orchestra global search box on the page head, based https://github.com/django/django/blob/master/django/contrib/admin/options.py#L866 and iterating over all registered services and inspectin its admin.search_fields

* contain error on plugin missing key (plugin dissabled): NOP, fail hard is better than silently, perhaps fail at starttime? apploading machinary

* contact.alternative_phone on a phone.tooltip, email:to

* better validate options and directives (url locations, filesystem paths, etc..)

* make sure that you understand the risks

* full support for deactivation of services/accounts
    * Display admin.is_active (disabled account special icon and order by support)

* lock resource monitoring
* -EXecCGI in common CMS upload locations /wp-upload/upload/uploads
* cgi user / pervent shell access

* prevent stderr when users exists on backend i.e. mysql user create

* disable anonymized list options (mailman)

* tags = GenericRelation(TaggedItem, related_query_name='bookmarks')

* user provided crons

* ```<?php
$moodle_host = $SERVER[‘HTTP_HOST’];
require_once(‘/etc/moodles/’.$moodle_host.‘config.php’);``` moodle/drupla/php-list multi-tenancy

* make account available on all admin forms

# WPMU blog traffic

* more robust backend error handling, continue executing but exit code > 0 if failure: failing_cmd || exit_code=1 and don't forget to call super.commit()!!

* website directives uniquenes validation on serializers

+ is_Active custom filter with support for instance.account.is_Active annotate with F() needed (django 1.8)

# delete apache logs and php logs

* document service help things: discount/refound/compensation effect and metric table
* Document metric interpretation help_text
* document plugin serialization, data_serializer?

# bill line managemente, remove, undo (only when possible), move, copy, paste
    * budgets: no undo feature

* Autocomplete admin fields like <site_name>.phplist... with js

* allow empty metric pack for default rates? changes on rating algo

* payment methods icons
* use server.name | server.address on python backends, like gitlab instead of settings?

* TODO raise404, here and everywhere
* update service orders on a celery task? because it take alot

# FIXME do more test, make sure billed until doesn't get uodated whhen services are billed with les metric, and don't upgrade billed_until when undoing under this circumstances
#    * line 513: change threshold and one time service metric change should update last value if not billed, only record for recurring invoicing. postpay services should store the last metric for pricing period.
#    * add ini, end dates on bill lines and breakup quanity into size(defaut:1) and metric
#    * threshold for significative metric accountancy on services.handler
#    * http://orchestra.pangea.org/admin/orders/order/6418/
#    * http://orchestra.pangea.org/admin/orders/order/6495/bill_selected_orders/

* move normurlpath to orchestra.utils from websites.utils

* write down insights

* websites directives get_location() and use it on last change view validation stage to compare with contents.location and also on the backend ?

* modeladmin Default filter + search isn't working, prepend filter when searching

* create service help templates based on urlqwargs with the most basic services.

Translation
-----------
mkdir locale
django-admin.py makemessages -l ca
django-admin.py compilemessages -l ca

https://docs.djangoproject.com/en/1.7/topics/i18n/translation/#joining-strings-string-concat

from django.utils.translation import ugettext
from django.utils import translation
translation.activate('ca')
ugettext("Description")

* saas validate_creation generic approach, for all backends. standard output

* html code x: &times; for bill line verbose quantity

* periodic task to cleanup backendlogs, monitor data and metricstorage 
* create orchestrate databases.Database pk=1 -n --dry-run | --noinput --action save (default)|delete --backend name (limit to this backend) --help

* uwsgi     --max-requests=5000 \           # respawn processes after serving 5000 requests and
celery max-tasks-per-child

* generate settings.py more like django (installed_apps, middlewares, etc,,,)

* postupgradeorchestra send signals in order to hook custom stuff

* autoscale celery workers http://docs.celeryproject.org/en/latest/userguide/workers.html#autoscaling


glic3rinu's django-fluent-dashboard
* gevent is not ported to python3 :'(

# FIXME account deletion generates an integrity error
https://code.djangoproject.com/ticket/24576
# FIXME what to do when deleting accounts? set fk null and fill a username charfield? issues, invoices.. we whant all this to go away?
* implement delete All related services

# FIXME address name change does not remove old one :P, readonly or perhaps we can regenerate all addresses using backend.prepare()?

* read https://docs.djangoproject.com/en/dev/releases/1.8/ and fix deprecation warnings

* create nice fieldsets for SaaS, WebApp types and services, and helptexts too!

* replace make_option in management commands

# FIXME model contact info and account info (email, name, etc) correctly/unredundant/dry

* Use the new django.contrib.admin.RelatedOnlyFieldListFilter in ModelAdmin.list_filter to limit the list_filter choices to foreign objects which are attached to those from the ModelAdmin.
+ Query Expressions, Conditional Expressions, and Database Functions¶
* forms: You can now pass a callable that returns an iterable of choices when instantiating a ChoiceField.

* move all tests to django-orchestra/tests
* *natural keys: those fields that uniquely identify a service, list.name, website.name, webapp.name+account, make sure rest api can not edit thos things


* MultiCHoiceField proper serialization

* UNIFY PHP FPM settings name
# virtualhost name: name-account?
* add a delay to changes on the webserver apache to no overwelm it with backend executions?
* replace unique_name by natural_key?
* do not require contact or create default
* send signals for backend triggers
* force ignore slack billing period overridig when billing
* fpm reload starts new pools?
* rename resource.monitors to resource.backends ?
* abstract model classes that enabling overriding, and ORCHESTRA_DATABASE_MODEL settings + orchestra.get_database_model() instead of explicitly importing from orchestra.contrib.databases.models import Database.. (Admin and REST API are fucked then?)

# billing order list filter detect metrics that are greater from those of billing_date
# Ignore superusers & co on billing: list filter doesn't work nor ignore detection
# bill.totals make it 100% computed?
* joomla: wget https://github.com/joomla/joomla-cms/releases/download/3.4.1/Joomla_3.4.1-Stable-Full_Package.tar.gz -O - | tar xvfz -

# Amend lines???
# orders currency setting

# Determine the difference between data serializer used for validation and used for the rest API!
# Make PluginApiView that fills metadata and other stuff like modeladmin plugin support

# TODO orchestra related services code reload: celery/uwsgi reloading find aonther way without root and implement reload

# reset setting button 

# admin edit relevant djanog settings
# django SITE_NAME vs ORCHESTRA_SITE_NAME ?


# TASKS_ENABLE_UWSGI_CRON_BEAT (default) for production + system check --deploy
    if 'wsgi' in sys.argv and settings.TASKS_ENABLE_UWSGI_CRON_BEAT:
        import uwsgi
        def uwsgi_beat(signum):
            print "It's 5 o'clock of the first day of the month."
        uwsgi.register_signal(99, '', uwsgi_beat)
        uwsgi.add_timer(99, 60)
# TASK_BEAT_BACKEND = ('cron', 'celerybeat', 'uwsgi')
# Ship orchestra production-ready (no DEBUG etc)

# Settings.parser.changes: if setting.value == default. remove
# reload generic admin view ?redirect=http...
# inspecting django db connection for asserting db readines? or performing a query
# wake up django mailer on send_mail

        from orchestra.contrib.tasks import task
        import time, sys
        @task(name='rata')
        def counter(num, log):
            for i in range(1, num):
                with open(log, 'a') as handler:
                    handler.write(str(i))
                sys.stderr.write('hola\n')
                time.sleep(1)
        counter.apply_async(10, '/tmp/kakas')

# Provide some fixtures with mocked data


TODO http://wiki2.dovecot.org/HowTo/SimpleVirtualInstall
TODO http://wiki2.dovecot.org/HowTo/VirtualUserFlatFilesPostfix
TODO mount the filesystem with "nosuid" option

# uwse uwsgi cron: decorator or config cron = 59 2 -1 -1 -1 %(virtualenv)/bin/python manage.py runmyfunnytask

# mailboxes.address settings multiple local domains, not only one?
# backend.context = self.get_context() or save(obj, context=None) ?? more like form.cleaned_data

# smtplib.SMTPConnectError: (421, b'4.7.0 mail.pangea.org Error: too many connections from 77.246.181.209')

# rename virtual_maps to virtual_alias_maps and remove virtual_alias_domains ?
# virtdomains file is not ideal, prevent fake/error on domains there! and make sure to chekc if this file is required!

# Deprecate restart/start/stop services (do touch wsgi.py and fuck celery)
orchestra-beat support for uwsgi cron

make django admin taskstate uncollapse fucking traceback, ( if exists ?)

# form for custom message on admin save "comment & save"?

# backend.context and backned.instance provided when an action is called? like forms.cleaned_data: do it on manager.generation(backend.context = backend.get_context()) or in backend.__getattr__ ? also backend.head,tail,content switching on manager.generate()?

resorce monitoring more efficient, less mem an better queries for calc current data

# bill this https://orchestra.pangea.org/admin/orders/order/8236/ should be already billed, <= vs <
# Convert rating method from function to PluginClass
# Tests can not run because django.db.utils.ProgrammingError: relation "accounts_account" does not exist

# autoresponses on mailboxes, not addresses or remove them

# ACL don't give exec permissions to files!
# force save and continue on routes (and others?)
# gevent for python3
apt-get install cython3
export CYTHON='cython3'
pip3 install https://github.com/fantix/gevent/archive/master.zip


# SIgnal handler for notify workers to reload stuff, like resource sync: https://docs.python.org/2/library/signal.html

# BUG Delete related services also deletes account!

# get_related service__rates__isnull=TRue is that correct?

# uwsgi hot reload? http://uwsgi-docs.readthedocs.org/en/latest/articles/TheArtOfGracefulReloading.html

# change mailer.message.priority by, queue/sent inmediatelly or rename critical to noq


method(
    arg, arg, arg)



Bash/Python/PHPBackend

# services.handler as generator in order to save memory? not swell like a balloon

import uwsgi
from uwsgidecorators import timer
from django.utils import autoreload

@timer(3)
def change_code_gracefull_reload(sig):
    if autoreload.code_changed():
        uwsgi.reload()
# using kill to send the signal
kill -HUP `cat /tmp/project-master.pid`
# or the convenience option --reload
uwsgi --reload /tmp/project-master.pid
# or if uwsgi was started with touch-reload=/tmp/somefile
touch /tmp/somefile

# batch zone edditing

# datetime metric storage granularity: otherwise innacurate detection of billed metric on order.billed_on

# Serializers.validation migration to DRF3: grep -r 'attrs, source' *|grep -v '~'
serailzer self.instance on create.

* check certificate: websites directive ssl + domains search on miscellaneous

# ValueError: Unable to configure handler 'file': [Errno 13] Permission denied: '/home/orchestra/panel/orchestra.log'

# billing invoice link on related invoices not overflow nginx GET vars

* backendLog store method and language... and use it for display_script with correct lexer

@register.filter
def comma(value):
    value = str(value)
    if '.' in value:
        left, right = str(value).split('.')
        return ','.join((left, right))
    return value


# payment/bill report allow to change template using a setting variable
# Payment transaction stats, graphs over time

reporter.stories_filed = F('stories_filed') + 1
reporter.save()
In order to access the new value that has been saved in this way, the object will need to be reloaded:
https://docs.djangoproject.com/en/dev/ref/models/conditional-expressions/
Greatest
Colaesce('total', 'computed_total')
Case

# case on payment transaction state ? case when trans.amount > 

# Resource data inline show info: link to monitor data, and history chart: link to monitor data of each item


# ORDER diff Pending vs ALL
# pre-bill confirmation: remove account if lines.count() == 0 ?

# Discount prepaid metric should be more optimal https://orchestra.pangea.org/admin/orders/order/40/
#   -> order.billed_metric besides billed_until

# USE CONTROLLED MONITOR GRAPHS
# graph metric storage
# CLEANUP MONITOR DATA 0.00 (from SUM aggregators, AVG are needed for maintaining state), maybe also aggregate older values
# MULTIPLE GRAPH TYPE: datapoint line chart for AVG, stacked for SUM())