docker compose componenti

.idea/.gitignore

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+# Default ignored files
+/shelf/
+/workspace.xml
+# Ignored default folder with query files
+/queries/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
+# Editor-based HTTP Client requests
+/httpRequests/

.idea/documentazione.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

develop/docker-compose.yaml

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+networks: 
+  default:
+    driver: bridge
+    ipam:
+      driver: default
+      config:
+        - subnet: 172.19.0.0/16
+
+services:
+  loki:
+    image: grafana/loki:2.9.4
+    container_name: loki
+    ports:
+      - "3100:3100"
+    command: -config.file=/etc/loki/local-config.yaml
+    volumes:
+      - ./loki-config.yaml:/etc/loki/local-config.yaml:ro
+      - loki-data:/loki
+    networks: 
+      default:
+        ipv4_address: 172.19.0.2
+
+  grafana:
+    image: grafana/grafana:11.0.0
+    container_name: grafana
+    ports:
+      - "3000:3000"
+    environment:
+      - GF_SECURITY_ADMIN_USER=admin
+      - GF_SECURITY_ADMIN_PASSWORD=admin
+    volumes:
+      - grafana-data:/var/lib/grafana
+    networks: 
+      default:
+        ipv4_address: 172.19.0.3
+    depends_on:
+      - loki
+
+  pgsql:
+    image: postgres:17
+#    restart: unless-stopped
+    container_name: postgresql
+    volumes: 
+      - postgresql-data:/var/lib/postgresql/data
+      - ./init-db.sh:/docker-entrypoint-initdb.d/init-db.sh:ro
+    networks: 
+      default:
+        ipv4_address: 172.19.0.4
+    ports:
+      - target: 5432
+        published: 5432 
+        protocol: tcp
+        mode: host
+    environment:
+      - POSTGRES_PASSWORD=Creative26!
+
+# 9002 porta per la comunicazione tra container
+# 9003 porta per la connessione fuori da docker
+# 9004 porta quorumdei controller kraft
+  kafka:
+    image: apache/kafka:4.2.0
+    container_name: kafka
+    networks: 
+      default:
+        ipv4_address: 172.19.0.5
+    ports:
+      - "9092:9092"
+    environment:
+# Rimosso il prefisso _CFG_
+      - KAFKA_NODE_ID=1
+      - KAFKA_PROCESS_ROLES=broker,controller
+      - KAFKA_CONTROLLER_LISTENER_NAMES=CONTROLLER
+      - KAFKA_LISTENERS=PLAINTEXT://:9092,EXTERNAL://:9094,CONTROLLER://:9093
+      - KAFKA_ADVERTISED_LISTENERS=PLAINTEXT://kafka:9092,EXTERNAL://localhost:9094
+      - KAFKA_LISTENER_SECURITY_PROTOCOL_MAP=CONTROLLER:PLAINTEXT,PLAINTEXT:PLAINTEXT,EXTERNAL:PLAINTEXT
+      - KAFKA_CONTROLLER_QUORUM_VOTERS=1@kafka:9093
+      # Variabile fondamentale per l'immagine Apache in modalita KRaft
+      - KAFKA_INTER_BROKER_LISTENER_NAME=PLAINTEXT
+
+# localhost:9001 interfaccia per esplorare topic e consumer
+  kafdrop:
+    image: obsidiandynamics/kafdrop:4.2.0
+    container_name: kafdrop
+    ports:
+      - "9001:9001"
+    environment:
+      - KAFKA_BROKERCONNECT=kafka:9092
+      - SERVER_PORT=9001
+    depends_on:
+      - kafka
+    networks: 
+      default:
+        ipv4_address: 172.19.0.6
+
+  #keycloak - in prod comand: start
+  keycloak:
+    image: quay.io/keycloak/keycloak:26.5.6
+    container_name: keycloak
+    environment:
+      KC_BOOTSTRAP_ADMIN_USERNAME: admin
+      KC_BOOTSTRAP_ADMIN_PASSWORD: Creative26!
+
+# utilizza utenza di root
+      KC_DB: postgres
+      KC_DB_URL: jdbc:postgresql://pgsql:5432/keycloak
+      KC_DB_USERNAME: postgres
+      KC_DB_PASSWORD: Creative26!
+
+      KC_HOSTNAME: localhost
+      KC_HOSTNAME_PORT: 8080
+      KC_HOSTNAME_STRICT: 'false'
+      KC_HOSTNAME_STRICT_HTTPS: 'false'
+
+      #KC_FEATURES: scripts non utilizzato piu
+      KC_LOG_LEVEL: info
+      KC_METRICS_ENABLED: 'true'
+      KC_HEALTH_ENABLED: 'true'
+    command: start-dev
+    ports:
+      - '8080:8080'
+    depends_on:
+      - pgsql
+    networks:
+      default:
+        ipv4_address: 172.19.0.7
+
+
+volumes:
+  loki-data:
+  grafana-data:
+  postgresql-data:

develop/init-db.sh

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+#!/bin/bash
+set -e
+
+# Funzione per creare un database e un utente limitato
+# Argomenti: NOME_DB, NOME_UTENTE, PASSWORD_UTENTE
+create_limited_user_and_db() {
+    local database=$1
+    local user=$2
+    local password=$3
+    
+    echo "  Configurazione database: $database per l'utente: $user"
+    
+    psql -v ON_ERROR_STOP=1 --username "$POSTGRES_USER" --dbname "postgres" <<-EOSQL
+        CREATE DATABASE $database;
+        CREATE USER $user WITH PASSWORD '$password';
+        \c $database
+        REVOKE ALL ON SCHEMA public FROM PUBLIC;
+        GRANT USAGE ON SCHEMA public TO $user;
+        GRANT SELECT, INSERT, UPDATE, DELETE ON ALL TABLES IN SCHEMA public TO $user;
+        GRANT USAGE, SELECT ON ALL SEQUENCES IN SCHEMA public TO $user;
+        ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT SELECT, INSERT, UPDATE, DELETE ON TABLES TO $user;
+        ALTER DEFAULT PRIVILEGES IN SCHEMA public GRANT USAGE, SELECT ON SEQUENCES TO $user;
+EOSQL
+}
+
+echo "Inizio inizializzazione database multipli..."
+
+# 1. Database per Keycloak (L'utente admin ha già i permessi perché proprietario del DB principale)
+# Non serve crearlo qui se è già definito in POSTGRES_DB nel docker-compose, 
+# ma assicuriamoci che esista.
+echo "Verifica database Keycloak..."
+
+# 2. Creazione Microservizi con permessi LIMITATI (Sola gestione DATI, no struttura)
+# Formato: nome_db, nome_utente, password
+create_limited_user_and_db "negozi" "user_negozi" "Anker26!"
+create_limited_user_and_db "keycloak" "user_keycloak" "Anker26!"
+
+echo "Inizializzazione completata con successo!"

develop/istruzioni.txt

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+
+
+chmod +x init-db.sh
+
+docker compose up --detach --no-recreate <nome_del_nuovo_servizio>
+
+docker logs -f keycloak
+
+docker-compose up -d keycloak
+
+Per cancellare tutto in un colpo solo (container, reti, volumi e immagini):
+docker compose down -v --rmi all --remove-orphans
+
+docker compose up -d
+docker-compose up -d --no-deps keycloak
+
+Cosa fa questo comando?
+	•	up -d: Rileva i cambiamenti nel file docker-compose.yml, ricrea il container solo se necessario e lo avvia in background.
+	•	--no-deps: Impedisce a Docker di riavviare anche i servizi da cui Keycloak dipende (come pgsql), velocizzando l'operazione.
+	•	keycloak: Specifica di agire solo sul servizio Keycloak.
+
+
+Obiettivo                                   Comando
+Controllare lo stato                        docker compose ps
+Vedere i log (anche se in background)       docker compose logs -f
+Spegnere tuttodocker                        compose down
+Riavviare i servizidocker                   compose restart
+
+
+Creative26!
+Anker26!

develop/loki-config.yaml

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+auth_enabled: false
+
+server:
+  http_listen_port: 3100
+
+ingester:
+  lifecycler:
+    ring:
+      kvstore:
+        store: inmemory
+      replication_factor: 1
+  chunk_idle_period: 5m
+  chunk_retain_period: 30s
+  wal:
+    dir: /loki/wal
+  max_transfer_retries: 0
+
+schema_config:
+  configs:
+    - from: 2025-08-08
+      store: tsdb
+      object_store: filesystem
+      schema: v13
+      index:
+        prefix: index_
+        period: 24h
+
+storage_config:
+  tsdb_shipper:
+    active_index_directory: /loki/tsdb-index
+    cache_location: /loki/tsdb-cache
+    shared_store: filesystem
+
+  filesystem:
+    directory: /loki/chunks
+
+limits_config:
+  allow_structured_metadata: true
+  retention_period: 168h   # 7 giorni, puoi aumentare se vuoi
+
+compactor:
+  working_directory: /loki/compactor
+  shared_store: filesystem

develop/test-kafkla.sh

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+#!/bin/bash
+set -e
+
+TOPIC_NAME="test-topic"
+MESSAGE="Hello Kafka without Zookeeper!"
+
+echo "🚀 Avvio Kafka in background..."
+docker-compose up -d
+
+echo "⏳ Attendo 10 secondi che Kafka sia pronto..."
+sleep 10
+
+echo "📌 Creo il topic '$TOPIC_NAME'..."
+docker exec kafka kafka-topics.sh \
+  --bootstrap-server localhost:9092 \
+  --create --topic "$TOPIC_NAME" \
+  --partitions 1 --replication-factor 1
+
+echo "📋 Lista dei topic disponibili:"
+docker exec kafka kafka-topics.sh \
+  --bootstrap-server localhost:9092 --list
+
+echo "✉️ Invio un messaggio al topic..."
+echo "$MESSAGE" | docker exec -i kafka kafka-console-producer.sh \
+  --broker-list localhost:9092 --topic "$TOPIC_NAME"
+
+echo "📥 Lettura del messaggio dal topic:"
+docker exec kafka kafka-console-consumer.sh \
+  --bootstrap-server localhost:9092 \
+  --topic "$TOPIC_NAME" --from-beginning --timeout-ms 5000
+
+echo "✅ Test completato!"