Elastic Compute Service:Deploy a Java Web environment using an Alibaba Cloud Marketplace image

Step 1: Purchase an image and create an instance

1. Go to the image details page for JAVA_nginx_tomcat_CentOS7.9_20G.

2. Click Choose Your Plan.

3. Configure the parameters on the Custom Launch page. The main parameters are listed below, and you can configure other parameters as needed. For more information, see Create an instance by using Custom Launch.

   Parameter	Example	Description
   Region	China (Hangzhou)	The instance must be in the same region as the security group.
   Network and zone	Default VPC	The instance must be in the same VPC as the security group.
   Image	Marketplace Image - JAVA_nginx_tomcat_CentOS7.9_20G	The image is automatically selected based on your purchase. No changes are required.
   Public IP address	Select Assign Public IPv4 Address.	To access the Java web environment over the internet, you must assign a public IPv4 address to the instance. Alternatively, you can associate an EIP with the instance after you create it. For more information, see Associate an EIP with a cloud resource.
   Security group	sg-2zebli************if	Select the security group that you created. The security group must allow inbound traffic on ports 22 and 8080.

Step 2: Get the public IP address

You need the instance's public IP address to verify the environment configuration.

1. Go to ECS console - Instances.

2. In the upper-left corner of the page, select a region and resource group.

3. Click the ID of the target instance to go to the Instance Details page and find the public IP address.

Step 3: Verify the environment configuration

1. Connect to the Linux instance. For more information, see Connection methods.

2. Verify the Java environment.

   Run the following command to check the installed Java version.

   java -version

   [root@xxx ~]# java -version
   java version "1.8.0_121"
   Java(TM) SE Runtime Environment (build 1.8.0_121-b13)
   Java HotSpot(TM) 64-Bit Server VM (build 25.121-b13, mixed mode)

   

3. Verify Tomcat.

   1. Run the following command to start Tomcat. If the output includes Tomcat started., Tomcat has started successfully.

      Note

      The default installation directory of Tomcat in the image used for this tutorial is /usr/local/tomcat. This path may vary depending on the image. Check the image details page in Alibaba Cloud Marketplace for the correct path and modify the command accordingly.

      /usr/local/tomcat/bin/startup.sh

      [root@ixxxxxxxxxx ~]# /opt/tomcat/bin/startup.sh
      Using CATALINA_BASE:   /opt/tomcat
      Using CATALINA_HOME:   /opt/tomcat
      Using CATALINA_TMPDIR: /opt/tomcat/temp
      Using JRE_HOME:        /usr/share/jdk1.8.0_121/jre
      Using CLASSPATH:       /opt/tomcat/bin/bootstrap.jar:/opt/tomcat/bin/tomcat-juli.jar
      Tomcat started.

      

   2. In your browser's address bar, enter http://:8080. The appearance of the Tomcat welcome page confirms that the environment is configured correctly.

      Note

      • If the Tomcat welcome page does not appear after you enter http://:8080, check the security group to ensure that inbound traffic on port 8080 is allowed.

      • To test your project, upload a WAR package to the webapps directory of Tomcat. For the image in this tutorial, the directory is /usr/local/tomcat/webapps. Then, enter http://:8080/ in your browser to access the project. For more information, see Upload files to or download files from a Linux instance.

      

4. Verify MySQL.

   1. Run the following command to connect to MySQL. When prompted, enter the password. If you are authenticated successfully, the MySQL CLI is displayed.

      Note

      For the image used in this tutorial, the default remote username is root and the default password is yl2vXBS%FjGoSfby. The defaults may vary by image. Check the image details page in Alibaba Cloud Marketplace and use the correct username and password.

      mysql -u root -p

      [root@ixxxxxxxx ~]# mysql -u root -p
      Enter password:
      Welcome to the MySQL monitor.  Commands end with ; or \g.
      Your MySQL connection id is 6
      Server version: 5.7.19 MySQL Community Server (GPL)
      Copyright (c) 2000, 2017, Oracle and/or its affiliates. All rights reserved.
      Oracle is a registered trademark of Oracle Corporation and/or its
      affiliates. Other names may be trademarks of their respective
      owners.
      Type 'help;' or '\h' for help. Type '\c' to clear the current input statement.
      mysql>

      

   2. In the MySQL CLI, run the following command to list all available databases. If the command succeeds, it confirms that your instance can communicate with MySQL.

      SHOW DATABASES;

      mysql> SHOW DATABASES;
      +--------------------+
      | Database           |
      +--------------------+
      | information_schema |
      | mysql              |
      | performance_schema |
      | sys                |
      +--------------------+
      4 rows in set (0.00 sec)