March 2025
Intermediate to advanced
282 pages
6h 36m
Italian
Content preview from Terraform Cookbook
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Capitolo 4. Moduli e fornitori Terraform
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Moduli in Terraform sono pacchetti autonomi di configurazioni Terraform che vengono gestiti come un gruppo. Vengono utilizzati per incapsulare il codice in componenti riutilizzabili e per organizzare il codice in modo da facilitare il lavoro di squadra e la collaborazione. Ogni modulo può includere diverse risorse configurate per lavorare insieme.
I moduli possono essere paragonati alle funzioni dei linguaggi di programmazione tradizionali. Come una funzione, un modulo incapsula un blocco di codice con uno scopo specifico e può essere riutilizzato in contesti diversi. Tuttavia, a differenza di una funzione, un modulo gestisce un insieme di risorse anziché eseguire calcoli.
I moduli Terraform vengono creati utilizzando la stessa sintassi linguistica delle configurazioni Terraform di livello principale (file.tf ). Utilizzando il blocco di configurazione del modulo, possono essere richiamati da altri moduli o dal modulo principale.
Mentre i moduli ci aiutano a organizzare le risorse e a riutilizzare il codice, i provider di Terraform interagiscono con le API esterne per creare, leggere, aggiornare e cancellare tali risorse. Ogni provider è responsabile della comprensione delle interazioni con le API e dell'esposizione delle risorse.
Terraform è compatibile con molti fornitori di cloud, tra cui AWS, GCP, ...
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