Initial Django project setup for Postgres cluster management - Created Django project structure with postgres_handholder main app - Added clusters, backups, and monitoring apps - Implemented comprehensive models for PostgresCluster, PostgresInstance, ClusterUser, ClusterDatabase - Added forms and views for cluster management - Created Bootstrap 5 templates with modern UI - Added Docker and Docker Compose configuration - Included Celery for background tasks - Added comprehensive requirements.txt with all dependencies - Updated README with installation and usage instructions - Added environment configuration example - Set up proper URL routing and app structure
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152
clusters/forms.py
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152
clusters/forms.py
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from django import forms
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from django.contrib.auth.models import User
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from .models import PostgresCluster, ClusterUser, ClusterDatabase
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class PostgresClusterForm(forms.ModelForm):
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"""Form for creating and editing Postgres clusters."""
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class Meta:
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model = PostgresCluster
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fields = [
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'name', 'description', 'cluster_type', 'deployment_type',
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'postgres_version', 'port', 'data_directory',
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'cpu_limit', 'memory_limit', 'storage_size',
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'host', 'external_port', 'admin_user', 'admin_password',
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'extensions', 'libraries', 'tls_enabled', 'tls_cert_path',
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'tls_key_path', 'tls_ca_path', 'pgpool_enabled', 'pgpool_instances'
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]
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widgets = {
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'name': forms.TextInput(attrs={'class': 'form-control'}),
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'description': forms.Textarea(attrs={'class': 'form-control', 'rows': 3}),
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'cluster_type': forms.Select(attrs={'class': 'form-select'}),
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'deployment_type': forms.Select(attrs={'class': 'form-select'}),
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'postgres_version': forms.Select(attrs={'class': 'form-select'}, choices=[
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('13', 'PostgreSQL 13'),
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('14', 'PostgreSQL 14'),
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('15', 'PostgreSQL 15'),
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('16', 'PostgreSQL 16'),
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('17', 'PostgreSQL 17'),
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]),
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'port': forms.NumberInput(attrs={'class': 'form-control'}),
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'data_directory': forms.TextInput(attrs={'class': 'form-control'}),
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'cpu_limit': forms.TextInput(attrs={'class': 'form-control'}),
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'memory_limit': forms.TextInput(attrs={'class': 'form-control'}),
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'storage_size': forms.TextInput(attrs={'class': 'form-control'}),
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'host': forms.TextInput(attrs={'class': 'form-control'}),
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'external_port': forms.NumberInput(attrs={'class': 'form-control'}),
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'admin_user': forms.TextInput(attrs={'class': 'form-control'}),
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'admin_password': forms.PasswordInput(attrs={'class': 'form-control'}),
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'tls_cert_path': forms.TextInput(attrs={'class': 'form-control'}),
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'tls_key_path': forms.TextInput(attrs={'class': 'form-control'}),
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'tls_ca_path': forms.TextInput(attrs={'class': 'form-control'}),
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'pgpool_instances': forms.NumberInput(attrs={'class': 'form-control'}),
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}
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def __init__(self, *args, **kwargs):
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super().__init__(*args, **kwargs)
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# Set default values for extensions and libraries
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if not self.instance.pk:
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self.fields['extensions'].initial = [
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'pg_stat_statements',
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'pg_auth_mon',
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]
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self.fields['libraries'].initial = [
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'bg_mon',
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'pg_stat_statements',
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'pgextwlist',
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'pg_auth_mon',
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]
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def clean_name(self):
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name = self.cleaned_data['name']
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if not name.replace('-', '').replace('_', '').isalnum():
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raise forms.ValidationError(
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'Cluster name can only contain letters, numbers, hyphens, and underscores.'
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)
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return name
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def clean_admin_password(self):
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password = self.cleaned_data['admin_password']
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if len(password) < 8:
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raise forms.ValidationError(
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'Admin password must be at least 8 characters long.'
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)
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return password
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class ClusterUserForm(forms.ModelForm):
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"""Form for creating and editing cluster users."""
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confirm_password = forms.CharField(
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widget=forms.PasswordInput(attrs={'class': 'form-control'}),
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help_text='Confirm the password'
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)
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class Meta:
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model = ClusterUser
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fields = [
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'username', 'password', 'is_superuser', 'can_create_db',
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'can_login', 'permissions'
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]
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widgets = {
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'username': forms.TextInput(attrs={'class': 'form-control'}),
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'password': forms.PasswordInput(attrs={'class': 'form-control'}),
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'is_superuser': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
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'can_create_db': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
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'can_login': forms.CheckboxInput(attrs={'class': 'form-check-input'}),
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'permissions': forms.Textarea(attrs={'class': 'form-control', 'rows': 3}),
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}
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def clean_username(self):
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username = self.cleaned_data['username']
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if not username.replace('_', '').isalnum():
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raise forms.ValidationError(
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'Username can only contain letters, numbers, and underscores.'
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)
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return username
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def clean(self):
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cleaned_data = super().clean()
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password = cleaned_data.get('password')
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confirm_password = cleaned_data.get('confirm_password')
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if password and confirm_password and password != confirm_password:
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raise forms.ValidationError('Passwords do not match.')
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return cleaned_data
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class ClusterDatabaseForm(forms.ModelForm):
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"""Form for creating and editing cluster databases."""
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class Meta:
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model = ClusterDatabase
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fields = ['name', 'owner', 'encoding', 'collation', 'ctype']
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widgets = {
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'name': forms.TextInput(attrs={'class': 'form-control'}),
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'owner': forms.Select(attrs={'class': 'form-select'}),
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'encoding': forms.Select(attrs={'class': 'form-select'}, choices=[
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('UTF8', 'UTF8'),
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('LATIN1', 'LATIN1'),
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('SQL_ASCII', 'SQL_ASCII'),
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]),
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'collation': forms.TextInput(attrs={'class': 'form-control'}),
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'ctype': forms.TextInput(attrs={'class': 'form-control'}),
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}
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def __init__(self, *args, **kwargs):
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cluster = kwargs.pop('cluster', None)
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super().__init__(*args, **kwargs)
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if cluster:
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self.fields['owner'].queryset = cluster.users.all()
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def clean_name(self):
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name = self.cleaned_data['name']
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if not name.replace('_', '').isalnum():
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raise forms.ValidationError(
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'Database name can only contain letters, numbers, and underscores.'
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)
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return name
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