英文:
Deployment path for deploy java code in AWS
问题
通常情况下，在哪些场景下我们会直接通过上传Java WAR文件来创建AWS云实例？在哪些场景下我们会首先设置和准备服务器，安装所有软件如Java、Tomcat，然后将代码部署到AWS上？
英文:
i want to know ,
generally in which scenario we directly create AWS cloud instance by directly uploading java war file
and in which scenario we first setup and ready server first , by installing all softwares like java,tomkat and then deploy code in AWS
答案1
得分: 1
要在运行在EC2实例上的Apache服务器上部署Java .war文件，您必须使用Apache Tomcat（作为应用程序服务器）和Apache HTTP服务器（作为Web服务器）的组合来部署.war文件。按照以下步骤进行操作：
- 创建EC2实例：
- 使用您选择的Linux发行版（例如Amazon Linux、Ubuntu）启动EC2实例。
- 重要提示：确保EC2实例的安全组允许入站流量在端口22（SSH）、80（HTTP）和443（HTTPS）上。
- 设置Apache Tomcat：
- 使用终端或SSH客户端（如PuTTY，适用于Windows用户）连接到您的EC2实例，或者您可以使用AWS cloudshell。
- 更新：对于Ubuntu，运行 'sudo apt update'，对于Amazon Linux，运行 'sudo yum update' 以更新软件包列表。
- 安装Apache Tomcat：对于Ubuntu，运行 'sudo apt install tomcat9'，对于Amazon Linux，运行 'sudo yum install tomcat'。
- 启动Tomcat：对于Ubuntu，运行 'sudo systemctl start tomcat'，对于Amazon Linux，运行 'sudo service tomcat start'。
- 检查状态：运行 'sudo systemctl status tomcat' 或 'sudo service tomcat status' 确保它正常运行。
- 部署.war文件：
-
将您的.war文件复制到Tomcat的webapps目录。假设您的.war文件名为"myapp.war"，并且安装了Tomcat 9，请使用以下命令：
sudo cp /path/to/myapp.war /var/lib/tomcat9/webapps/
- 重新启动Apache Tomcat：
-
在复制.war文件后，重新启动Tomcat以部署应用程序：
sudo systemctl restart tomcat
- 配置Apache HTTP服务器作为反向代理（可选）：
- 如果您希望通过域名和端口80（HTTP）访问应用程序，您可以设置Apache HTTP服务器作为反向代理。这允许您将Apache用作前端，同时将请求转发到Tomcat后端。
- 安装Apache HTTP服务器：对于Ubuntu，运行 'sudo apt install apache2'，对于Amazon Linux，运行 'sudo yum install httpd'。
- 启用必要的模块：运行 'sudo a2enmod proxy proxy_http'。
- 为您的域名创建虚拟主机配置。例如，在Ubuntu的'/etc/apache2/sites-available/'目录中创建一个名为myapp.conf的文件：
<VirtualHost *:80>
ServerName your_domain.com
ProxyPass / http://localhost:8080/
ProxyPassReverse / http://localhost:8080/
</VirtualHost>
- 对于Amazon Linux，您可以在'/etc/httpd/conf.d/'目录中创建类似的配置。
- 启用虚拟主机：对于Ubuntu，运行 'sudo a2ensite myapp'，对于Amazon Linux，运行 'sudo systemctl restart httpd'。
- 访问应用程序：
- 如果您设置了Apache HTTP服务器作为反向代理，现在可以使用您的域名访问您的应用程序（例如，http://your_domain.com）。
- 如果您没有设置Apache HTTP服务器，您可以直接通过Tomcat服务器的公共IP地址和端口8080访问应用程序（例如，http://your_ec2_public_ip:8080/myapp）。
您的.war文件现在应该已部署，并且可以通过Apache HTTP服务器或直接通过Tomcat访问，具体取决于您的配置选择。希望这个解决方案有所帮助。
英文:
To deploy Java .war file on an Apache server running on an EC2 instance, you must utilize a combination of Apache Tomcat (as the application server) and the Apache HTTP Server (as the web server) to deploy a.war file. Follow these steps
- Create an EC2 instance:
- Start an EC2 instance with your choice Linux distribution (for
example, Amazon Linux, Ubuntu).
IMP: Check that the EC2 instance's
security group enables inbound traffic on ports 22 (SSH), 80 (HTTP),
and 443 (HTTPS).
- Setup Apache Tomcat:
- Connect to your EC2 instance using SSH from your terminal or an SSH
client such as PuTTY (Windows users) or use can use AWS cloudshell. - To Update:
'sudo apt update' (for Ubuntu) or 'sudo yum update' (for Amazon
Linux) to update the package list. - Install Apache Tomcat:
'sudo apt install tomcat9' (for Ubuntu) or 'sudo yum install tomcat' (for
Amazon Linux). - Start Tomcat:
'sudo systemctl start tomcat' (for Ubuntu) or 'sudo service tomcat start'
(for Amazon Linux). - Check the status:
'sudo systemctl status tomcat' or 'sudo service tomcat status'. Make sure
it's running correctly.
- Deploy the .war file:
-
Copy your .war file to the Tomcat webapps directory. Assuming your .war file
is named "myapp.war" and Tomcat 9 is installed, use the following
command:sudo cp /path/to/myapp.war /var/lib/tomcat9/webapps/
- Restart Apache Tomcat:
-
After copying the .war file, restart Tomcat to deploy the application:
sudo systemctl restart tomcat
- Configure Apache HTTP Server as a Reverse Proxy (Optional):
- If you want to access your application via a domain name and port 80 (HTTP),
you can set up Apache HTTP Server as a reverse proxy. This allows you to use
Apache as a frontend while forwarding requests to Tomcat in the backend. - Install Apache HTTP Server: 'sudo apt install apache2' (for Ubuntu) or
'sudo yum install httpd' (for Amazon Linux). - Enable the necessary modules: 'sudo a2enmod proxy proxy_http'.
- Create a virtual host configuration for your domain name. For example,
create a file named myapp.conf in the '/etc/apache2/sites-available/'
directory for Ubuntu:
<VirtualHost *:80>
ServerName your_domain.com
ProxyPass / http://localhost:8080/
ProxyPassReverse / http://localhost:8080/
</VirtualHost>
- For Amazon Linux, you can create a similar configuration in the '/etc/httpd/conf.d/' directory.
- Enable the virtual host: sudo a2ensite myapp (for Ubuntu) or sudo systemctl restart httpd (for Amazon Linux).
- Access the Application:
- If you set up the Apache HTTP Server as a reverse proxy, you can now access your application using your domain name (e.g., http://your_domain.com).
- If you didn't set up Apache HTTP Server, you can access the application directly using the Tomcat server's public IP address and port 8080 (e.g., http://your_ec2_public_ip:8080/myapp).
Your .war file should now be deployed and accessible through either the Apache HTTP Server or directly via Tomcat, depending on your configuration choices.
Hope this solution Helps.
答案2
得分: 0
基于您的问题（不太清楚），听起来您想要将一个Java应用部署到AWS云上。一种方法是编写一个Spring Boot Web应用程序，然后将该项目打包成包含所有依赖项的FAT JAR文件，然后您可以使用Elastic Beanstalk将该应用程序部署到云上。
查看这个Java开发者示例，在AWS代码库中，以了解如何执行这些任务。这个示例应用程序是一个基本的Web应用程序，可以将提交的数据存储到Amazon DynamoDB表中。这个示例会逐步引导您完成整个过程。
英文:
Based on your question (it's not that clear) sounds like you want to deploy a Java app to AWS Cloud. One way is to write a Spring Boot web app and then bundle that project into a FAT JAR that contains all of the depedencies. Then you can use Elastic Beanstalk to deploy the app to the cloud.
See this Java Developer example, in the AWS Code Library, to learn how to perform these tasks. This example app is a basic web app that stores submitted data into an Amazon DynamoDB table. This example walks you step by step through the process.
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