Added docs readme file
This commit is contained in:
Marc Aymerich
parent
f6e79fd161
commit
046029ff0a
119
TODO.md
119
TODO.md
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@ -461,124 +461,7 @@ mkhomedir_helper or create ssh homes with bash.rc and such
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# Mv .deleted make sure it works with nested destinations
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# Automatically re-run backends until success? only timedout executions?
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### Quick start
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0. Install orchestra following any of these methods:
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1. [PIP-only, Fast deployment setup (demo)](README.md#fast-deployment-setup)
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2. [Docker container (development)](INSTALLDEV.md)
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3. [Install on current system (production)](INSTALL.md)
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1. Add the servers that you want to manage on `/admin/orchestration/servers` and copy orchestra's SSH pubkey to them
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`orchestra@panel:~ ssh-copy-id root@server.address`
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2. Now configure service by service (domains, databases, webapps, websites...):
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1. Add the route through `/admin/orchestration/route/`
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2. Check and configure related settings on `/admin/settings/setting/`
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3. Configure related resources if needed `/resources/resource/`, like Account Disc limit and traffic.
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3. Test that everything works by creating and deleting services
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4. Do the same for the other services
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3. Configure billing by adding services `/admin/services/service/add/` and plans `/admin/plans/plan/`
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1. Once a service is created hit the *Update orders* button
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### Architecture
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Orchestration
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Orders
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### Creating new services
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1. Think about if the service can fit into one of the existing models like: SaaS or WebApps, refere to the related documentation if that is the case.
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2. Create a new django app using startapp management command. For ilustrational purposes we will create a crontab services that will allow orchestra to manage user-based crontabs.
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`python3 manage.py startapp crontabs`
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3. Add the new *crontabs* app to the `INSTALLED_APPS` in your project's `settings.py`
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3. Create a `models.py` file with the data your service needs to keep in order to be managed by orchestra
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```python
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from django.db import models
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class CrontabSchedule(models.Model):
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account = models.ForeignKey('accounts.Account', verbose_name=_("account"))
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minute = models.CharField(_("minute"), max_length=64, default='*')
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hour = models.CharField(_("hour"), max_length=64, default='*')
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day_of_week = models.CharField(_("day of week"), max_length=64, default='*')
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day_of_month = models.CharField(_("day of month"), max_length=64, default='*')
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month_of_year = models.CharField(_("month of year"), max_length=64, default='*')
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class Meta:
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ordering = ('month_of_year', 'day_of_month', 'day_of_week', 'hour', 'minute')
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def __str__(self):
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rfield = lambda f: f and str(f).replace(' ', '') or '*'
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return "{0} {1} {2} {3} {4} (m/h/d/dM/MY)".format(
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rfield(self.minute), rfield(self.hour), rfield(self.day_of_week),
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rfield(self.day_of_month), rfield(self.month_of_year),
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)
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class Crontab(models.Model):
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account = models.ForeignKey('accounts.Account', verbose_name=_("account"))
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schedule = models.ForeignKey(CrontabSchedule, verbose_name=_("schedule"))
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description = models.CharField(_("description"), max_length=256, blank=True)
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command = models.TextField(_("content"))
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def __str__(self):
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return (self.description or self.command)[:32]
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```
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4. Create a `admin.py` to enable the admin interface
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```python
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from django.contrib import admin
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from .models import CrontabSchedule, Crontab
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class CrontabScheduleAdmin(admin.ModelAdmin):
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pass
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class CrontabAdmin(admin.ModelAdmin):
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pass
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admin.site.register(CrontabSchedule, CrontabScheduleAdmin)
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admin.site.register(Crontab, CrontabAdmin)
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5. Create a `api.py` to enable the REST API.
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6. Create a `backends.py` fiel with the needed backends for service orchestration and monitoring
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```python
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import os
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import textwrap
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from django.utils.translation import ugettext_lazy as _
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from orchestra.contrib.orchestration import ServiceController, replace
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from orchestra.contrib.resources import ServiceMonitor
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class UNIXCronBackend(ServiceController):
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"""
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Basic UNIX cron support.
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"""
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verbose_name = _("UNIX cron")
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model = 'crons.CronTab'
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def prepare(self):
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super(UNIXCronBackend, self).prepare()
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self.accounts = set()
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def save(self, crontab):
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self.accounts.add(crontab.account)
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def delete(self, crontab):
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self.accounts.add(crontab.account)
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def commit(self):
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for account in self.accounts:
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crontab = None
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self.append("echo '' > %(crontab_path)s" % context)
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chown
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for crontab in account.crontabs.all():
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self.append("
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# if crontab is None:
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# self.append("rm -f %(crontab_path)s" % context)
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```
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7. Configure the routing
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# TODO save serialized versions ob backendoperation.instance in order to allow backend reexecution of deleted objects
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@ -0,0 +1,118 @@
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### Quick start
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0. Install orchestra following any of these methods:
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1. [PIP-only, Fast deployment setup (demo)](README.md#fast-deployment-setup)
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2. [Docker container (development)](INSTALLDEV.md)
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3. [Install on current system (production)](INSTALL.md)
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1. Add the servers that you want to manage on `/admin/orchestration/servers` and copy orchestra's SSH pubkey to them
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`orchestra@panel:~ ssh-copy-id root@server.address`
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2. Now configure service by service (domains, databases, webapps, websites...):
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1. Add the route through `/admin/orchestration/route/`
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2. Check and configure related settings on `/admin/settings/setting/`
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3. Configure related resources if needed `/resources/resource/`, like Account Disc limit and traffic.
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3. Test that everything works by creating and deleting services
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4. Do the same for the other services
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3. Configure billing by adding services `/admin/services/service/add/` and plans `/admin/plans/plan/`
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1. Once a service is created hit the *Update orders* button
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### Architecture
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Orchestration
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Orders
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|
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### Creating new services
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1. Think about if the service can fit into one of the existing models like: SaaS or WebApps, refere to the related documentation if that is the case.
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2. Create a new django app using startapp management command. For ilustrational purposes we will create a crontab services that will allow orchestra to manage user-based crontabs.
|
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`python3 manage.py startapp crontabs`
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3. Add the new *crontabs* app to the `INSTALLED_APPS` in your project's `settings.py`
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3. Create a `models.py` file with the data your service needs to keep in order to be managed by orchestra
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```python
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from django.db import models
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class CrontabSchedule(models.Model):
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account = models.ForeignKey('accounts.Account', verbose_name=_("account"))
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minute = models.CharField(_("minute"), max_length=64, default='*')
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hour = models.CharField(_("hour"), max_length=64, default='*')
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day_of_week = models.CharField(_("day of week"), max_length=64, default='*')
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day_of_month = models.CharField(_("day of month"), max_length=64, default='*')
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month_of_year = models.CharField(_("month of year"), max_length=64, default='*')
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class Meta:
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ordering = ('month_of_year', 'day_of_month', 'day_of_week', 'hour', 'minute')
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def __str__(self):
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rfield = lambda f: f and str(f).replace(' ', '') or '*'
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return "{0} {1} {2} {3} {4} (m/h/d/dM/MY)".format(
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rfield(self.minute), rfield(self.hour), rfield(self.day_of_week),
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rfield(self.day_of_month), rfield(self.month_of_year),
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)
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class Crontab(models.Model):
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account = models.ForeignKey('accounts.Account', verbose_name=_("account"))
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schedule = models.ForeignKey(CrontabSchedule, verbose_name=_("schedule"))
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description = models.CharField(_("description"), max_length=256, blank=True)
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command = models.TextField(_("content"))
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def __str__(self):
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return (self.description or self.command)[:32]
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```
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4. Create a `admin.py` to enable the admin interface
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```python
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from django.contrib import admin
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from .models import CrontabSchedule, Crontab
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class CrontabScheduleAdmin(admin.ModelAdmin):
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pass
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class CrontabAdmin(admin.ModelAdmin):
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pass
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admin.site.register(CrontabSchedule, CrontabScheduleAdmin)
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admin.site.register(Crontab, CrontabAdmin)
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5. Create a `api.py` to enable the REST API.
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6. Create a `backends.py` fiel with the needed backends for service orchestration and monitoring
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```python
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import os
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import textwrap
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from django.utils.translation import ugettext_lazy as _
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from orchestra.contrib.orchestration import ServiceController, replace
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from orchestra.contrib.resources import ServiceMonitor
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class UNIXCronBackend(ServiceController):
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"""
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Basic UNIX cron support.
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"""
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verbose_name = _("UNIX cron")
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model = 'crons.CronTab'
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def prepare(self):
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super(UNIXCronBackend, self).prepare()
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self.accounts = set()
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def save(self, crontab):
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self.accounts.add(crontab.account)
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def delete(self, crontab):
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self.accounts.add(crontab.account)
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def commit(self):
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for account in self.accounts:
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crontab = None
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self.append("echo '' > %(crontab_path)s" % context)
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chown
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for crontab in account.crontabs.all():
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self.append("
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# if crontab is None:
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# self.append("rm -f %(crontab_path)s" % context)
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```
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7. Configure the routing
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@ -12,13 +12,15 @@ from .models import BackendOperation
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def retry_backend(modeladmin, request, queryset):
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related_operations = queryset.values_list('operations__id', flat=True).distinct()
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related_operations = BackendOperation.objects.filter(pk__in=related_operations)
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related_operations = related_operations.select_related('log__server').prefetch_related('instance')
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if request.POST.get('post') == 'generic_confirmation':
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operations = []
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for log in queryset.prefetch_related('operations__instance'):
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for operation in log.operations.all():
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if operation.instance:
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op = Operation.load(operation)
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operations.append(op)
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for operation in related_operations:
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if operation.instance:
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op = Operation.load(operation)
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operations.append(op)
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if not operations:
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messages.warning(request, _("No backend operation has been executed."))
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else:
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@ -29,9 +31,7 @@ def retry_backend(modeladmin, request, queryset):
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opts = modeladmin.model._meta
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display_objects = []
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deleted_objects = []
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related_operations = queryset.values_list('operations__id', flat=True).distinct()
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related_operations = BackendOperation.objects.filter(pk__in=related_operations)
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for op in related_operations.select_related('log__server').prefetch_related('instance'):
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for op in related_operations:
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if not op.instance:
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deleted_objects.append(op)
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else:
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