Question

我正在使用对流层生成CloudFormation模板。我正在尝试创建运行LAMP Stack的EC2实例的自动缩放组。

我需要在EC2实例上安装软件包并创建配置文件。

现在，我正在使用Join方法内联指定配置文件内容。

LaunchConfig = t.add_resource(LaunchConfiguration(
    "LaunchConfiguration",
    Metadata=autoscaling.Metadata(
        cloudformation.Init(
            cloudformation.InitConfigSets(
                install=['install']
            ),
            "install": cloudformation.InitConfig(
                "packages" : {
                    "apt-get" : {
                        "curl": [],
                        "zip": [],
                        "unzip": [],
                        "git": [],
                        "supervisor": [],
                        "sqlite3": [],
                        "nginx": [],
                        "php7.2-fpm": [],
                        "php7.2-cli": [],
                        "php7.2-pgsql": [],
                        "php7.2-sqlite3": [],
                        "php7.2-gd": [],
                        "php7.2-curl": [],
                        "php7.2-memcached": [],
                        "php7.2-imap": [],
                        "php7.2-mysql": [],
                        "php7.2-mbstring": [],
                        "php7.2-xml": [],
                        "php7.2-zip": [],
                        "php7.2-bcmath": [],
                        "php7.2-soap": [],
                        "php7.2-intl": [],
                        "php7.2-readline": [],
                        "php-msgpack": [],
                        "php-igbinary": []
                    }
            ),
            {
            "config": cloudformation.InitConfig(
                files=cloudformation.InitFiles({
                    "/etc/nginx/sites-available/default": cloudformation.InitFile(
                        source=Join('', [
                            "server {",
                            "   listen 80 default_server;",
                            "   root /var/www/html/public;",
                            "   index index.html index.htm index.php;",
                            "   server_name _;",
                            "   charset utf-8;",
                            "   location = /favicon.ico { log_not_found off; access_log off; }",
                            "   location = /robots.txt  { log_not_found off; access_log off; }",
                            "   location / {",
                            "       try_files $uri $uri/ /index.php$is_args$args;",
                            "   }",
                            "   location ~ \.php$ {",
                            "       include snippets/fastcgi-php.conf;",
                            "       fastcgi_pass unix:/run/php/php7.2-fpm.sock;",
                            "   }",
                            "   error_page 404 /index.php;",
                            "}"
                        ])
                    ),
                    "/etc/supervisor/conf.d/supervisord.conf": cloudformation.InitFile(
                        source=Join('',[
                            "[supervisord]",
                            "nodaemon=true",
                            "[program:nginx]",
                            "command=nginx",
                            "stdout_logfile=/dev/stdout",
                            "stdout_logfile_maxbytes=0",
                            "stderr_logfile=/dev/stderr",
                            "stderr_logfile_maxbytes=0",
                            "[program:php-fpm]",
                            "command=php-fpm7.2",
                            "stdout_logfile=/dev/stdout",
                            "stdout_logfile_maxbytes=0",
                            "stderr_logfile=/dev/stderr",
                            "stderr_logfile_maxbytes=0",
                            "[program:horizon]",
                            "process_name=%(program_name)s",
                            "command=php /var/www/html/artisan horizon",
                            "autostart=true",
                            "autorestart=true",
                            "user=root",
                            "redirect_stderr=true",
                            "stdout_logfile=/var/www/html/storage/logs/horizon.log",
                        ])
                    ),
                }),
                services={
                    "sysvinit": cloudformation.InitServices({
                        "nginx": cloudformation.InitService(
                            enabled=True,
                            ensureRunning=True
                        )
                    })
                }
            )
        }),
    ),
    UserData=Base64(Join('', [
        "#!/bin/bash\n",
        "cfn-signal -e 0",
        "    --resource AutoscalingGroup",
        "    --stack ", Ref("AWS::StackName"),
        "    --region ", Ref("AWS::Region"), "\n"
    ])),
    ImageId=Ref(AmiId),
    KeyName=Ref(KeyName),
    BlockDeviceMappings=[
        ec2.BlockDeviceMapping(
            DeviceName="/dev/sda1",
            Ebs=ec2.EBSBlockDevice(
                VolumeSize="8"
            )
        ),
    ],
    SecurityGroups=[Ref(SecurityGroup)],
    InstanceType="t2.medium",
    ))

有没有一种方法可以单独保存这些配置文件，并仅使用对流层将其加载？

Answer 1

这是我的想法，我想介绍一个称为罐头模板的概念。基本上，can只是一组键值配置，然后使用可调用方法在运行时生成模板。请查看此项目https://github.com/MacHu-GWU/configirl-project中的README，它是一种配置管理工具，允许cloudformation，shell脚本，python，terraform和无服务器对话。

我的想法只是将ConfigClass的子类化并实现def create_template(self)方法，然后将对流层代码放入该方法中。 这可以解决您的问题。我在很多cloudformation项目中都一直在使用它。

由于这是一个常见用例，我认为值得在库中实现Canned Template的想法。它正在进行中，它将很快在此troposphere_mate项目https://github.com/MacHu-GWU/troposphere_mate-project

中发布

如何使用对流层将配置文件加载到云形成模板中？

1 个答案: