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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>
60 lines
1.1 KiB
Markdown
60 lines
1.1 KiB
Markdown
# How-to: Connettersi a PostgreSQL in Docker
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## Come connettersi al database
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### Da container nella stessa rete
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```bash
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docker exec lab05-app psql -h db -U lab05_user -d lab05_db
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```
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### Dall'host con port forwarding (non recommended)
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Se devi connetterti dall'host, aggiungi temporaneamente:
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```yaml
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# docker-compose.yml
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ports:
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- "127.0.0.1:5432:5432"
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```
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Poi:
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```bash
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psql -h 127.0.0.1 -U lab05_user -d lab05_db
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```
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### Con pgAdmin o altri tool
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1. Configura connection string:
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```
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host=127.0.0.1 port=5432 user=lab05_user password=lab05_password dbname=lab05_db
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```
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2. Oppure usa PostgreSQL URI:
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```
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postgresql://lab05_user:lab05_password@127.0.0.1:5432/lab05_db
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```
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## Risoluzione problemi
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### Connection refused
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Il database è in rete privata. Devi connetterti da container nella stessa rete:
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```bash
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# Prima entra in un container
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docker exec -it lab05-app sh
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# Poi connettiti
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psql -h db -U lab05_user -d lab05_db
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```
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### Password authentication failed
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Verifica le credenziali in docker-compose.yml:
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```bash
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grep POSTGRES_PASSWORD docker-compose.yml
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```
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