如何将 Python Lambda 函数集成到 AWS Amplify 的管道中

Posted 2023-03-08

【中文标题】如何将 Python Lambda 函数集成到 AWS Amplify 的管道中

【英文标题】：How do i integrate a Python Lambda Function into the Pipeline of AWS Amplify

【发布时间】：2021-05-20 10:33:54

【问题描述】：

所以我正在尝试使用 javascript 和 Python Lambda 函数构建一个 Ampliy 应用程序。一切正常。我已经设置了我的 CodeCommit 分支，以便通过持续部署进行托管。我在 Python 中添加了一个带有 Lambda 函数的 API。通过放大推送，放大成功部署了相应的 API 网关和 Lambda，并且我可以成功地与我的 lambda 函数进行交互。因此，一旦我将提交推送到我的存储库中，管道就会在构建阶段触发并崩溃：

                                 # Starting phase: build
                                 # Executing command: amplifyPush --simple
2021-02-17T14:01:23.680Z [INFO]: [0mAmplify AppID found: d2l0j3vtlykp8l. Amplify App name is: documentdownload[0m
2021-02-17T14:01:23.783Z [INFO]: [0mBackend environment dev found in Amplify Console app: documentdownload[0m
2021-02-17T14:01:24.440Z [WARNING]: - Fetching updates to backend environment: dev from the cloud.
2021-02-17T14:01:24.725Z [WARNING]: ✔ Successfully pulled backend environment dev from the cloud.
2021-02-17T14:01:24.758Z [INFO]: 
2021-02-17T14:01:26.925Z [INFO]: [33mNote: It is recommended to run this command from the root of your app directory[39m
2021-02-17T14:01:31.904Z [WARNING]: - Initializing your environment: dev
2021-02-17T14:01:32.216Z [WARNING]: ✔ Initialized provider successfully.
2021-02-17T14:01:32.829Z [INFO]: [31mpython3 found but version Python 3.7.9 is less than the minimum required version.[39m
                                 [31mYou must have python >= 3.8 installed and available on your PATH as "python3" or "python". It can be installed from https://www.python.org/downloads[39m
                                 [31mYou must have pipenv installed and available on your PATH as "pipenv". It can be installed by running "pip3 install --user pipenv".[39m
2021-02-17T14:01:32.830Z [WARNING]: ✖ An error occurred when pushing the resources to the cloud
2021-02-17T14:01:32.830Z [WARNING]: ✖ There was an error initializing your environment.
2021-02-17T14:01:32.832Z [INFO]: [31minit failed[39m
2021-02-17T14:01:32.834Z [INFO]: [0mError: Missing required dependencies to package documentdownload[0m
                                 [0m    at Object.buildFunction (/root/.nvm/versions/node/v12.19.0/lib/node_modules/@aws-amplify/cli/node_modules/amplify-category-function/src/provider-utils/awscloudformation/utils/buildFunction.ts:21:11)[0m
                                 [0m    at processTicksAndRejections (internal/process/task_queues.js:97:5)[0m
                                 [0m    at prepareResource (/root/.nvm/versions/node/v12.19.0/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/push-resources.ts:474:33)[0m
                                 [0m    at async Promise.all (index 0)[0m
                                 [0m    at Object.run (/root/.nvm/versions/node/v12.19.0/lib/node_modules/@aws-amplify/cli/node_modules/amplify-provider-awscloudformation/src/push-resources.ts:106:5)[0m
2021-02-17T14:01:32.856Z [ERROR]: !!! Build failed
2021-02-17T14:01:32.856Z [ERROR]: !!! Non-Zero Exit Code detected
2021-02-17T14:01:32.856Z [INFO]: # Starting environment caching...
2021-02-17T14:01:32.857Z [INFO]: # Environment caching completed

在上一步中，PROVISION 步骤虽然是 Python 3.8..

## Install python3.8
RUN wget https://www.python.org/ftp/python/3.8.0/Python-3.8.0.tgz
RUN tar xvf Python-3.8.0.tgz
WORKDIR Python-3.8.0
RUN ./configure --enable-optimizations --prefix=/usr/local
RUN make altinstall

现在我不知道它为什么会这样。将更改推送到本地它可以工作。有人可以帮忙吗？

【参考方案1】：

here 的两个解决方案：

交换构建映像 这可以通过this 完成。转到 Amplify 控制台，打开左侧菜单，单击“构建设置”，向下滚动直到看到“构建映像设置”，在下拉菜单中- 向下选择自定义，然后在其下方的字段中输入图像名称

2.如果您想从您提到的来源构建：将以下内容添加到 AWS 控制台中的应用程序设置 -> 构建设置下的amplify.yml：

backend:
  phases:
    preBuild:
      commands:
        - export BASE_PATH=$(pwd)
        - yum install -y gcc openssl-devel bzip2-devel libffi-devel python3.8-pip
        - cd /opt && wget https://www.python.org/ftp/python/3.8.2/Python-3.8.2.tgz
        - cd /opt && tar xzf Python-3.8.2.tgz 
        - cd /opt/Python-3.8.2 && ./configure --enable-optimizations
        - cd /opt/Python-3.8.2 && make altinstall
        - pip3.8 install --user pipenv
        - ln -fs /usr/local/bin/python3.8 /usr/bin/python3
        - ln -fs /usr/local/bin/pip3.8 /usr/bin/pip3
        - cd $BASE_PATH

【讨论】：

我想尝试一下，但似乎 apmlify 没有使用 amplify.yml 文件，也没有在 UI 中使用我的更新版本 :( 当我尝试时它响应“更新应用程序：文档下载成功”要重新部署，构建步骤保持不变，无需额外的命令

swapping 构建镜像怎么样？

我会试试这个，例如，我是否必须构建容器并将其上传到 ecr？或者构建映像的参考是什么意思？

好吧，不知何故放大与我不同的 git 分支混淆了。它终于提取了 amplify.yml 文件并且您的 preBuild 工作正常，谢谢！