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Connettiti a un'istanza Redis da una VM di Compute Engine

Puoi connetterti all'istanza Redis dalle istanze VM di Compute Engine che utilizzano la stessa rete autorizzata dell'istanza Redis.

Configurazione

Se hai già installato Google Cloud CLI, creato un'istanza Redis e un bucket Cloud Storage, puoi saltare questi passaggi.

Installa e inizializza gcloud CLI:
```
gcloud init
```
Segui la guida rapida per creare un'istanza Redis. Prendi nota della zona, dell'indirizzo IP e della porta dell'istanza Redis.
Crea un bucket Cloud Storage in cui verrà caricato l'artefatto dell'applicazione di esempio. Per saperne di più, consulta Crea bucket.

Configurazione delle impostazioni di gcloud per l'applicazione di esempio

Imposta il progetto predefinito di gcloud sul progetto dell'app di esempio.
```
gcloud config set project [PROJECT_ID]
```

Applicazione di esempio

Questa applicazione server HTTP di esempio stabilisce una connessione a un'istanza Redis da un'istanza VM di Compute Engine.

Clona il repository per il linguaggio di programmazione scelto e vai alla cartella contenente il codice campione:

Vai

git clone https://github.com/GoogleCloudPlatform/golang-samples
cd golang-samples/memorystore/redis

Java

git clone https://github.com/GoogleCloudPlatform/java-docs-samples
cd java-docs-samples/memorystore/redis

Node.js

git clone https://github.com/GoogleCloudPlatform/nodejs-docs-samples
cd nodejs-docs-samples/memorystore/redis

Python

git clone https://github.com/GoogleCloudPlatform/python-docs-samples
cd python-docs-samples/memorystore/redis

Questa applicazione di esempio incrementa un contatore Redis ogni volta che si accede all'endpoint /.

Vai

Questa applicazione utilizza il github.com/gomodule/redigo/redis client. Installalo eseguendo il seguente comando:

go get github.com/gomodule/redigo/redis@latest

Applicazione di esempio:


// Package main is a basic app that connects to a managed Redis instance.
package main

import (
	"fmt"
	"log"
	"net/http"
	"os"

	"github.com/gomodule/redigo/redis"
)

var redisPool *redis.Pool

func incrementHandler(w http.ResponseWriter, r *http.Request) {
	conn := redisPool.Get()
	defer conn.Close()

	counter, err := redis.Int(conn.Do("INCR", "visits"))
	if err != nil {
		http.Error(w, "Error incrementing visitor counter", http.StatusInternalServerError)
		return
	}
	fmt.Fprintf(w, "Visitor number: %d", counter)
}

func main() {
	redisHost := os.Getenv("REDISHOST")
	redisPort := os.Getenv("REDISPORT")
	redisAddr := fmt.Sprintf("%s:%s", redisHost, redisPort)

	const maxConnections = 10
	redisPool = &redis.Pool{
		MaxIdle: maxConnections,
		Dial:    func() (redis.Conn, error) { return redis.Dial("tcp", redisAddr) },
	}

	http.HandleFunc("/", incrementHandler)

	port := os.Getenv("PORT")
	if port == "" {
		port = "8080"
	}
	log.Printf("Listening on port %s", port)
	if err := http.ListenAndServe(":"+port, nil); err != nil {
		log.Fatal(err)
	}
}

Java

Questa applicazione è basata su servlet Jetty 3.1.

Utilizza la libreria Jedis:

<dependency>
  <groupId>redis.clients</groupId>
  <artifactId>jedis</artifactId>
  <version>5.1.0</version>
</dependency>

La classe AppServletContextListener viene utilizzata per creare un pool di connessioni Redis a lunga durata:


package com.example.redis;

import java.io.IOException;
import java.util.Properties;
import javax.servlet.ServletContextEvent;
import javax.servlet.ServletContextListener;
import javax.servlet.annotation.WebListener;
import redis.clients.jedis.JedisPool;
import redis.clients.jedis.JedisPoolConfig;

@WebListener
public class AppServletContextListener implements ServletContextListener {

  private Properties config = new Properties();

  private JedisPool createJedisPool() throws IOException {
    String host;
    Integer port;
    config.load(
        Thread.currentThread()
            .getContextClassLoader()
            .getResourceAsStream("application.properties"));
    host = config.getProperty("redis.host");
    port = Integer.valueOf(config.getProperty("redis.port", "6379"));

    JedisPoolConfig poolConfig = new JedisPoolConfig();
    // Default : 8, consider how many concurrent connections into Redis you will need under load
    poolConfig.setMaxTotal(128);

    return new JedisPool(poolConfig, host, port);
  }

  @Override
  public void contextDestroyed(ServletContextEvent event) {
    JedisPool jedisPool = (JedisPool) event.getServletContext().getAttribute("jedisPool");
    if (jedisPool != null) {
      jedisPool.destroy();
      event.getServletContext().setAttribute("jedisPool", null);
    }
  }

  // Run this before web application is started
  @Override
  public void contextInitialized(ServletContextEvent event) {
    JedisPool jedisPool = (JedisPool) event.getServletContext().getAttribute("jedisPool");
    if (jedisPool == null) {
      try {
        jedisPool = createJedisPool();
        event.getServletContext().setAttribute("jedisPool", jedisPool);
      } catch (IOException e) {
        // handle exception
      }
    }
  }
}

La classe VisitCounterServlet è una servlet web che incrementa un contatore Redis:


package com.example.redis;

import java.io.IOException;
import java.net.SocketException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import redis.clients.jedis.Jedis;
import redis.clients.jedis.JedisPool;

@WebServlet(name = "Track visits", value = "")
public class VisitCounterServlet extends HttpServlet {

  @Override
  public void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
    try {
      JedisPool jedisPool = (JedisPool) req.getServletContext().getAttribute("jedisPool");

      if (jedisPool == null) {
        throw new SocketException("Error connecting to Jedis pool");
      }
      Long visits;

      try (Jedis jedis = jedisPool.getResource()) {
        visits = jedis.incr("visits");
      }

      resp.setStatus(HttpServletResponse.SC_OK);
      resp.getWriter().println("Visitor counter: " + String.valueOf(visits));
    } catch (Exception e) {
      resp.sendError(HttpServletResponse.SC_INTERNAL_SERVER_ERROR, e.getMessage());
    }
  }
}

Node.js

Questa applicazione utilizza il redis modulo. Di seguito è riportato un file package.json di esempio:

{
  "name": "memorystore-redis",
  "description": "An example of using Memorystore(Redis) with Node.js",
  "version": "0.0.1",
  "private": true,
  "license": "Apache Version 2.0",
  "author": "Google Inc.",
  "engines": {
    "node": ">=16.0.0"
  },
  "dependencies": {
    "redis": "^4.0.0"
  }
}

Codice dell'applicazione di esempio:

'use strict';
const http = require('http');
const redis = require('redis');

const REDISHOST = process.env.REDISHOST || 'localhost';
const REDISPORT = process.env.REDISPORT || 6379;

const client = redis.createClient({
  url: `redis://${REDISHOST}:${REDISPORT}`,
});

client.on('error', err => console.error('ERR:REDIS:', err));

client
  .connect()
  .then(() => {
    console.log('Connected to Redis');
    http
      .createServer(async (req, res) => {
        try {
          const reply = await client.incr('visits');
          res.writeHead(200, {'Content-Type': 'text/plain'});
          res.end(`Visitor number: ${reply}\n`);
        } catch (err) {
          console.error(err);
          res.statusCode = 500;
          res.end(err.message);
        }
      })
      .listen(8080, () => {
        console.log('Server listening on port 8080');
      });
  })
  .catch(err => {
    console.error('Failed to connect to Redis:', err);
    throw err;
  });

Python

Questa applicazione utilizza Flask per il servizio web e il redis-py pacchetto per comunicare con l'istanza Redis.

Flask==3.0.3
gunicorn==23.0.0
redis==6.0.0
Werkzeug==3.0.3

Codice dell'applicazione di esempio:

import logging
import os

from flask import Flask
import redis

app = Flask(__name__)

redis_host = os.environ.get("REDISHOST", "localhost")
redis_port = int(os.environ.get("REDISPORT", 6379))
redis_client = redis.StrictRedis(host=redis_host, port=redis_port)


@app.route("/")
def index():
    value = redis_client.incr("counter", 1)
    return f"Visitor number: {value}"


@app.errorhandler(500)
def server_error(e):
    logging.exception("An error occurred during a request.")
    return (
        """
    An internal error occurred: <pre>{}</pre>
    See logs for full stacktrace.
    """.format(
            e
        ),
        500,
    )


if __name__ == "__main__":
    # This is used when running locally. Gunicorn is used to run the
    # application on Google App Engine and Cloud Run.
    # See entrypoint in app.yaml or Dockerfile.
    app.run(host="127.0.0.1", port=8080, debug=True)

Deployment dell'applicazione in una VM di Compute Engine

Vai alla directory gce_deployment:

cd gce_deployment

Lo script di deployment carica l'artefatto nel percorso di Cloud Storage. Quindi avvia un'istanza Compute Engine, creando un firewall per esporre la porta 8080. Lo script di avvio prepara quindi l'istanza.

Imposta le variabili di ambiente REDISHOST e REDISPORT:

   export REDISHOST=[REDISHOST]
   export REDISPORT=[REDISPORT]

dove:

REDISHOST è l'IP dell'istanza Redis gestita.
REDISPORT è la porta dell'istanza Redis gestita, per impostazione predefinita 6379.

Imposta la variabile di ambiente GCS_BUCKET_NAME:

     export GCS_BUCKET_NAME=[BUCKET_NAME]/[PATH]

dove:

BUCKET_NAME è il nome del tuo bucket Cloud Storage.
PATH è un percorso facoltativo per la directory in cui vuoi archiviare l'artefatto dell'applicazione.

Di seguito è riportato uno script di deployment di esempio che esegue il deployment di questa applicazione in una nuova istanza VM di Compute Engine.

Vai

if [ -z "$REDISHOST" ]; then
  echo "Must set \$REDISHOST. For example: REDISHOST=127.0.0.1"
  exit 1
fi

if [ -z "$REDISPORT" ]; then
  echo "Must set \$REDISPORT. For example: REDISPORT=6379"
  exit 1
fi

if [ -z "$GCS_BUCKET_NAME" ]; then
  echo "Must set \$GCS_BUCKET_NAME. For example: GCS_BUCKET_NAME=my-bucket"
  exit 1
fi

if [ -z "$ZONE" ]; then
  ZONE=$(gcloud config get-value compute/zone -q)
  echo "$ZONE"
fi


# Cross compile the app for linux/amd64
GOOS=linux GOARCH=amd64 go build -v -o app ../main.go
# Add the app binary
tar -cvf app.tar app
# Copy to GCS bucket
gcloud storage cp app.tar gs://"$GCS_BUCKET_NAME"/gce/

# Create an instance
gcloud compute instances create my-instance \
    --image-family=debian-11 \
    --image-project=debian-cloud \
    --machine-type=e2-small \
    --scopes cloud-platform \
    --metadata-from-file startup-script=startup-script.sh \
    --metadata gcs-bucket="$GCS_BUCKET_NAME",redis-host="$REDISHOST",redis-port="$REDISPORT" \
    --zone "$ZONE" \
    --tags http-server

gcloud compute firewall-rules create allow-http-server-8080 \
    --allow tcp:8080 \
    --source-ranges 0.0.0.0/0 \
    --target-tags http-server \
    --description "Allow port 8080 access to http-server"

Java

if [ -z "$GCS_BUCKET_NAME" ]; then
    echo "Must set \$GCS_BUCKET_NAME. For example: GCS_BUCKET_NAME=my-bucket"
    exit 1
fi

if [ -z "$ZONE" ]; then
  ZONE=$(gcloud config get-value compute/zone -q)
  echo $ZONE
fi

if [ -z "$WAR" ]; then
  WAR=visitcounter-1.0-SNAPSHOT.war
fi

#Build the WAR package
cd ..
mvn clean package

#Copy the WAR artifact to the GCS bucket location
gcloud storage cp --recursive target/${WAR} gs://"$GCS_BUCKET_NAME"/gce/

cd gce_deployment

# Create an instance
gcloud compute instances create my-instance \
    --image-family=debian-9 \
    --image-project=debian-cloud \
    --machine-type=g1-small \
    --scopes cloud-platform \
    --metadata-from-file startup-script=startup-script.sh \
    --metadata gcs-bucket=$GCS_BUCKET_NAME,app-war=$WAR \
    --zone $ZONE \
    --tags http-server

gcloud compute firewall-rules create allow-http-server-8080 \
    --allow tcp:8080 \
    --source-ranges 0.0.0.0/0 \
    --target-tags http-server \
    --description "Allow port 8080 access to http-server"

Node.js

if [ -z "$REDISHOST" ]; then
  echo "Must set \$REDISHOST. For example: REDISHOST=127.0.0.1"
  exit 1
fi

if [ -z "$REDISPORT" ]; then
  echo "Must set \$REDISPORT. For example: REDISPORT=6379"
  exit 1
fi

if [ -z "$GCS_BUCKET_NAME" ]; then
  echo "Must set \$GCS_BUCKET_NAME. For example: GCS_BUCKET_NAME=my-bucket"
  exit 1
fi

if [ -z "$ZONE" ]; then
  ZONE=$(gcloud config get-value compute/zone -q)
  echo $ZONE
fi

#Upload the tar to GCS
tar -cvf app.tar -C .. package.json server.js
gcloud storage cp app.tar gs://"$GCS_BUCKET_NAME"/gce/

# Create an instance
gcloud compute instances create my-instance \
    --image-family=debian-9 \
    --image-project=debian-cloud \
    --machine-type=g1-small \
    --scopes cloud-platform \
    --metadata-from-file startup-script=startup-script.sh \
    --metadata gcs-bucket=$GCS_BUCKET_NAME,redis-host=$REDISHOST,redis-port=$REDISPORT \
    --zone $ZONE \
    --tags http-server

gcloud compute firewall-rules create allow-http-server-8080 \
    --allow tcp:8080 \
    --source-ranges 0.0.0.0/0 \
    --target-tags http-server \
    --description "Allow port 8080 access to http-server"

Python

if [ -z "$REDISHOST" ]; then
  echo "Must set \$REDISHOST. For example: REDISHOST=127.0.0.1"
  exit 1
fi

if [ -z "$REDISPORT" ]; then
  echo "Must set \$REDISPORT. For example: REDISPORT=6379"
  exit 1
fi

if [ -z "$GCS_BUCKET_NAME" ]; then
  echo "Must set \$GCS_BUCKET_NAME. For example: GCS_BUCKET_NAME=my-bucket"
  exit 1
fi

if [ -z "$ZONE" ]; then
  ZONE=$(gcloud config get-value compute/zone -q)
  echo $ZONE
fi

#Upload the tar to GCS
tar -cvf app.tar -C .. requirements.txt main.py
# Copy to GCS bucket
gcloud storage cp app.tar gs://"$GCS_BUCKET_NAME"/gce/

# Create an instance
gcloud compute instances create my-instance \
    --image-family=debian-11 \
    --image-project=debian-cloud \
    --machine-type=g1-small \
    --scopes cloud-platform \
    --metadata-from-file startup-script=startup-script.sh \
    --metadata gcs-bucket=$GCS_BUCKET_NAME,redis-host=$REDISHOST,redis-port=$REDISPORT \
    --zone $ZONE \
    --tags http-server

gcloud compute firewall-rules create allow-http-server-8080 \
    --allow tcp:8080 \
    --source-ranges 0.0.0.0/0 \
    --target-tags http-server \
    --description "Allow port 8080 access to http-server"

Esegui lo script di deployment:

     chmod +x deploy.sh
     ./deploy.sh

Script di avvio dell'applicazione

Questo script di avvio viene utilizzato nello script di deployment di esempio per preparare l'istanza. Per saperne di più sugli script di avvio e sulla visualizzazione dei log di esecuzione degli script di avvio, consulta Esecuzione di script di avvio.

Vai

set -ex

# Talk to the metadata server to get the project id and location of application binary.
PROJECTID=$(curl -s "http://metadata.google.internal/computeMetadata/v1/project/project-id" -H "Metadata-Flavor: Google")
export PROJECTID
GCS_BUCKET_NAME=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/gcs-bucket" -H "Metadata-Flavor: Google")
REDISHOST=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/redis-host" -H "Metadata-Flavor: Google")
REDISPORT=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/redis-port" -H "Metadata-Flavor: Google")

# Install dependencies from apt
apt-get update
apt-get install -yq ca-certificates supervisor

# Install logging monitor. The monitor will automatically pickup logs send to
# syslog.
curl "https://storage.googleapis.com/signals-agents/logging/google-fluentd-install.sh" --output google-fluentd-install.sh
checksum=$(sha256sum google-fluentd-install.sh | awk '{print $1;}')
if [ "$checksum" != "ec78e9067f45f6653a6749cf922dbc9d79f80027d098c90da02f71532b5cc967" ]; then
    echo "Checksum does not match"
    exit 1
fi
chmod +x google-fluentd-install.sh && ./google-fluentd-install.sh
service google-fluentd restart &

gcloud storage cp gs://"$GCS_BUCKET_NAME"/gce/app.tar /app.tar
mkdir -p /app
tar -x -f /app.tar -C /app
chmod +x /app/app

# Create a goapp user. The application will run as this user.
getent passwd goapp || useradd -m -d /home/goapp goapp
chown -R goapp:goapp /app

# Configure supervisor to run the Go app.
cat >/etc/supervisor/conf.d/goapp.conf << EOF
[program:goapp]
directory=/app
environment=HOME="/home/goapp",USER="goapp",REDISHOST=$REDISHOST,REDISPORT=$REDISPORT
command=/app/app
autostart=true
autorestart=true
user=goapp
stdout_logfile=syslog
stderr_logfile=syslog
EOF

supervisorctl reread
supervisorctl update

Java

set -ex

# Talk to the metadata server to get the project id and location of application binary.
PROJECTID=$(curl -s "http://metadata.google.internal/computeMetadata/v1/project/project-id" -H "Metadata-Flavor: Google")
GCS_BUCKET_NAME=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/gcs-bucket" -H "Metadata-Flavor: Google")
WAR=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/app-war" -H "Metadata-Flavor: Google")

gcloud storage cp gs://"$GCS_BUCKET_NAME"/gce/"$WAR" .

# Install dependencies from apt
apt-get update
apt-get install -qq openjdk-8-jdk-headless

# Make Java8 the default
update-alternatives --set java /usr/lib/jvm/java-8-openjdk-amd64/jre/bin/java

# Jetty Setup
mkdir -p /opt/jetty/temp
mkdir -p /var/log/jetty

# Get Jetty
curl -L https://repo1.maven.org/maven2/org/eclipse/jetty/jetty-distribution/9.4.10.v20180503/jetty-distribution-9.4.10.v20180503.tar.gz -o jetty9.tgz
tar xf jetty9.tgz  --strip-components=1 -C /opt/jetty

# Add a Jetty User
useradd --user-group --shell /bin/false --home-dir /opt/jetty/temp jetty

cd /opt/jetty
# Add running as "jetty"
java -jar /opt/jetty/start.jar --add-to-startd=setuid
cd /

# very important - by renaming the war to root.war, it will run as the root servlet.
mv $WAR /opt/jetty/webapps/root.war

# Make sure "jetty" owns everything.
chown --recursive jetty /opt/jetty

# Configure the default paths for the Jetty service
cp /opt/jetty/bin/jetty.sh /etc/init.d/jetty
echo "JETTY_HOME=/opt/jetty" > /etc/default/jetty
{
  echo "JETTY_BASE=/opt/jetty"
  echo "TMPDIR=/opt/jetty/temp"
  echo "JAVA_OPTIONS=-Djetty.http.port=8080"
  echo "JETTY_LOGS=/var/log/jetty"
} >> /etc/default/jetty


# Reload daemon to pick up new service
systemctl daemon-reload

# Install logging monitor. The monitor will automatically pickup logs sent to syslog.
curl -s "https://storage.googleapis.com/signals-agents/logging/google-fluentd-install.sh" | bash
service google-fluentd restart &

service jetty start
service jetty check

echo "Startup Complete"

Node.js

set -ex

# Talk to the metadata server to get the project id and location of application binary.
PROJECTID=$(curl -s "http://metadata.google.internal/computeMetadata/v1/project/project-id" -H "Metadata-Flavor: Google")
GCS_BUCKET_NAME=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/gcs-bucket" -H "Metadata-Flavor: Google")
REDISHOST=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/redis-host" -H "Metadata-Flavor: Google")
REDISPORT=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/redis-port" -H "Metadata-Flavor: Google")

# Install dependencies from apt
apt-get update
# Install Node.js 9
curl -sL https://deb.nodesource.com/setup_9.x | sudo -E bash -
apt-get install -yq ca-certificates supervisor nodejs build-essential


# Install logging monitor. The monitor will automatically pickup logs send to
# syslog.
curl -s "https://storage.googleapis.com/signals-agents/logging/google-fluentd-install.sh" | bash
service google-fluentd restart &

gcloud storage cp gs://"$GCS_BUCKET_NAME"/gce/app.tar /app.tar
mkdir -p /app
tar -x -f /app.tar -C /app
cd /app
# Install the app dependencies
npm install

# Create a nodeapp user. The application will run as this user.
getent passwd nodeapp || useradd -m -d /home/nodeapp nodeapp
chown -R nodeapp:nodeapp /app

# Configure supervisor to run the Go app.
cat >/etc/supervisor/conf.d/nodeapp.conf << EOF
[program:nodeapp]
directory=/app
environment=HOME="/home/nodeapp",USER="nodeapp",REDISHOST=$REDISHOST,REDISPORT=$REDISPORT
command=node server.js
autostart=true
autorestart=true
user=nodeapp
stdout_logfile=syslog
stderr_logfile=syslog
EOF

supervisorctl reread
supervisorctl update

Python

set -v

# Talk to the metadata server to get the project id and location of application binary.
PROJECTID=$(curl -s "http://metadata.google.internal/computeMetadata/v1/project/project-id" -H "Metadata-Flavor: Google")
GCS_BUCKET_NAME=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/gcs-bucket" -H "Metadata-Flavor: Google")
REDISHOST=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/redis-host" -H "Metadata-Flavor: Google")
REDISPORT=$(curl -s "http://metadata.google.internal/computeMetadata/v1/instance/attributes/redis-port" -H "Metadata-Flavor: Google")

# Install dependencies from apt
apt-get update
apt-get install -yq \
    git build-essential supervisor python python-dev python-pip libffi-dev \
    libssl-dev

# Install logging monitor. The monitor will automatically pickup logs send to
# syslog.
curl -s "https://storage.googleapis.com/signals-agents/logging/google-fluentd-install.sh" | bash
service google-fluentd restart &

gcloud storage cp gs://"$GCS_BUCKET_NAME"/gce/app.tar /app.tar
mkdir -p /app
tar -x -f /app.tar -C /app
cd /app

# Install the app dependencies
pip install --upgrade pip virtualenv
virtualenv /app/env
/app/env/bin/pip install -r /app/requirements.txt

# Create a pythonapp user. The application will run as this user.
getent passwd pythonapp || useradd -m -d /home/pythonapp pythonapp
chown -R pythonapp:pythonapp /app

# Configure supervisor to run the app.
cat >/etc/supervisor/conf.d/pythonapp.conf << EOF
[program:pythonapp]
directory=/app
environment=HOME="/home/pythonapp",USER="pythonapp",REDISHOST=$REDISHOST,REDISPORT=$REDISPORT
command=/app/env/bin/gunicorn main:app --bind 0.0.0:8080
autostart=true
autorestart=true
user=pythonapp
stdout_logfile=syslog
stderr_logfile=syslog
EOF

supervisorctl reread
supervisorctl update

Il deployment dell'applicazione di esempio nella nuova istanza Compute Engine potrebbe richiedere diversi minuti.

Una volta che l'istanza è pronta e lo script di avvio è stato completato, vai a la pagina delle istanze Compute Engine e copia l'indirizzo IP esterno.

Per visualizzare l'app di esempio di cui hai eseguito il deployment, visita http://[EXTERNAL-IP]:8080

Puoi utilizzare lo script teardown.sh per eliminare l'istanza e il firewall creati dallo script di deployment:

gcloud compute instances delete my-instance

gcloud compute firewall-rules delete allow-http-server-8080

Connettiti a un'istanza Redis da una VM di Compute Engine Mantieni tutto organizzato con le raccolte Salva e classifica i contenuti in base alle tue preferenze.

Configurazione

Configurazione delle impostazioni di gcloud per l'applicazione di esempio

Applicazione di esempio

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Java

Node.js

Python

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Java

Node.js

Python

Deployment dell'applicazione in una VM di Compute Engine

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Java

Node.js

Python

Script di avvio dell'applicazione

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Java

Node.js

Python

Connettiti a un'istanza Redis da una VM di Compute Engine