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Documentation (6 files, 1500+ lines): Tutorials (3): - 01-deploy-rds-database.md: Deploy PostgreSQL in private network - 02-data-persistence.md: Data persistence with named volumes - 03-security-compliance.md: INF-01/02/03/04 compliance How-to Guides (1): - connect-to-postgresql.md: Connection methods Reference (1): - postgresql-commands.md: PostgreSQL command reference Explanation (1): - database-rds-parallels.md: Docker↔RDS parallels with architecture diagrams Key concepts: - PostgreSQL container → RDS Instance - Private network → VPC Private Subnet - Named volume → EBS volume - Resource limits → DB instance class Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Reference: PostgreSQL Commands per Lab 05
Comandi Utili
Connessione
# Connessione base
docker exec lab05-db psql -U lab05_user -d lab05_db
# Connessione con host specificato
docker exec lab05-app psql -h db -U lab05_user -d lab05_db
# Esegui comando singolo
docker exec lab05-db psql -U lab05_user -d lab05_db -c "SELECT version();"
Operazioni Database
-- Crea database
CREATE DATABASE test_db;
-- Lista database
\l
-- Cambia database
\c test_db
-- Droppia database
DROP DATABASE test_db;
Operazioni Tabelle
-- Crea tabella
CREATE TABLE test_table (
id SERIAL PRIMARY KEY,
name TEXT,
value INTEGER
);
-- Lista tabelle
\dt
-- Descrivi tabella
\d test_table
-- Droppia tabella
DROP TABLE test_table;
DML
-- Insert
INSERT INTO test_table (name, value) VALUES ('test', 42);
-- Select
SELECT * FROM test_table;
-- Update
UPDATE test_table SET value = 100 WHERE name = 'test';
-- Delete
DELETE FROM test_table WHERE name = 'test';
Utility
# Verifica PostgreSQL pronto
docker exec lab05-db pg_isready -U lab05_user
# Backup database
docker exec lab05-db pg_dump -U lab05_user lab05_db > backup.sql
# Ripristina database
cat backup.sql | docker exec -i lab05-db psql -U lab05_user lab05_db
Variabili Ambiente PostgreSQL
| Variabile | Descrizione | Default |
|---|---|---|
| POSTGRES_DB | Nome database | postgres |
| POSTGRES_USER | Utente creato | - |
| POSTGRES_PASSWORD | Password utente | - |
| POSTGRES_INITDB_ARGS | Argomenti initdb | - |
| PGDATA | Data directory | /var/lib/postgresql/data |