openfaas 简单试用

1. 安装 faas-cli 
参考以前文章,或者使用官方的shell脚本
 
2. 简单例子
mkdir  rong 
cd rong 
faas-cli new  rong  --lang python // 默认会有简单的测试code

// 生成的项目代码
rong  rong.yml  template
// 完整目录如下,部分是不需要的,只是一些模板,我们需要的就是Python 的
├── rong
│   ├── handler.py
│   └── requirements.txt
├── rong.yml
└── template
    ├── csharp
    │   ├── Dockerfile
    │   ├── function
    │   │   ├── Function.csproj
    │   │   └── FunctionHandler.cs
    │   ├── Program.cs
    │   └── root.csproj
    ├── go
    │   ├── Dockerfile
    │   ├── function
    │   │   └── handler.go
    │   └── main.go
    ├── node
    │   ├── build.sh
    │   ├── Dockerfile
    │   ├── function
    │   │   ├── handler.js
    │   │   └── package.json
    │   ├── index.js
    │   └── package.json
    ├── node-arm64
    │   ├── build.sh
    │   ├── Dockerfile
    │   ├── function
    │   │   ├── handler.js
    │   │   └── package.json
    │   ├── index.js
    │   └── package.json
    ├── node-armhf
    │   └── Dockerfile
    ├── python
    │   ├── Dockerfile
    │   ├── function
    │   │   ├── handler.py
    │   │   └── requirements.txt
    │   ├── index.py
    │   └── requirements.txt
    ├── python3
    │   ├── Dockerfile
    │   ├── function
    │   │   ├── handler.py
    │   │   ├── __init__.py
    │   │   └── requirements.txt
    │   ├── index.py
    │   └── requirements.txt
    ├── python-armhf
    │   └── Dockerfile
    └── ruby
        ├── Dockerfile
        ├── function
        │   ├── Gemfile
        │   └── handler.rb
        ├── Gemfile
        └── index.rb

// 构建
faas-cli  build  -f ./rong.yml

// 具体的输出
[0] > Building: rong.
Clearing temporary build folder: ./build/rong/
Preparing ./rong/ ./build/rong/function
Building: rong with python template. Please wait..
docker build -t rong .
Sending build context to Docker daemon  6.144kB
Step 1/15 : FROM python:2.7-alpine
 ---> 9b06bbaac1c7
Step 2/15 : RUN apk --no-cache add curl     && echo "Pulling watchdog binary from Github."     && curl -sSL https://github.com/openfaas/faas/releases/download/0.6.1/fwatchdog > /usr/bin/fwatchdog     && chmod +x /usr/bin/fwatchdog     && apk del curl --no-cache
 ---> Using cache
 ---> bd048b13c8ba
Step 3/15 : WORKDIR /root/
 ---> Using cache
 ---> 54c96a75a92e
Step 4/15 : COPY index.py .
 ---> Using cache
 ---> b6f064e7ff22
Step 5/15 : COPY requirements.txt .
 ---> Using cache
 ---> c844fec1e035
Step 6/15 : RUN pip install -r requirements.txt
 ---> Using cache
 ---> ca4c6044fa4e
Step 7/15 : COPY function function
 ---> Using cache
 ---> 5cd07cf272ff
Step 8/15 : RUN touch ./function/__init__.py
 ---> Using cache
 ---> 9d4dd7aee98b
Step 9/15 : WORKDIR /root/function/
 ---> Using cache
 ---> 4a1374f1c1f5
Step 10/15 : COPY function/requirements.txt .
 ---> Using cache
 ---> 8c0facae743b
Step 11/15 : RUN pip install -r requirements.txt
 ---> Using cache
 ---> 62943c5906f8
Step 12/15 : WORKDIR /root/
 ---> Using cache
 ---> 907178d97644
Step 13/15 : ENV fprocess "python index.py"
 ---> Using cache
 ---> d65f459a52a3
Step 14/15 : HEALTHCHECK --interval=1s CMD [ -e /tmp/.lock ] || exit 1
 ---> Using cache
 ---> 3e19415c84b6
Step 15/15 : CMD fwatchdog
 ---> Using cache
 ---> e85c978e99a4
Successfully built e85c978e99a4
Successfully tagged rong:latest
Image: rong built.
[0] < Builder done.

//  发布
faas-cli  deploy  -f ./rong.yml
// 返回信息如下
Deploying: rong.
No existing service to remove
Deployed.
URL: http://localhost:8080/function/rong

200 OK
3. 使用
  直接点击rong  输入参数,可以看到输出参数
 
 
原文地址:https://www.cnblogs.com/rongfengliang/p/7636994.html