Self-Extractor Creator Service

Overview

• A micro-service running to package a self-extracting zip file for Windows Platfrom
• Micro-service is running inside a linux docker container for portability reasons
• Node.js has been selected due to its asynchronous nature and a light foot print
• A side-car process it launched from micro-service to create the zip file: unzipsfx

End-Points

Create Zip File

Request

curl -XPOST   -H "Content-Type: application/json" \
              -H "x-api-key: f84e2396-9c14-11e8-98d0-529269fb1459" \
              -d \
'
{
  "files": [
    {
      "path": "filename1.txt",
      "content": "ZmlsZS0xLWNvbnRlbnQ="
    },
    {
      "path": "folder1/filename1.txt",
      "content": "ZmlsZS0yLWNvbnRlbnQ="
    }
  ]
}
' 'localhost:3000/zip'

Or

curl -XPOST   -H "Content-Type: application/json" \
              -H "x-api-key: f84e2396-9c14-11e8-98d0-529269fb1459" \
              -d  "@./test/sampleData.json" 'localhost:3000/zip'

• Content is base64 encoded
• x-api-key is for authentication purposes

Response

{ "archiveContent": "c2VmLWV4dHJhY3Rvci1jb250ZW50" }

• Content is base64 encoded and needs to be saved with exe extension

Development on CentOS

• Clone the repository
• Run the bash setup script: chmod +x ./setup.sh && ./setup.sh

Build & Run

docker build . --tag twiconnect/sfx-creator-service:1.0 &&
docker run -it -d -p 3000:3000 --rm --name sfx-creator-service twiconnect/sfx-creator-service:1.0

Deployment Models

Installing node on CentOS

• Install distribution version: sudo yum install node -y
• Install nvm: curl -o- https://raw.githubusercontent.com/creationix/nvm/v0.33.11/install.sh | bash
• Refresh environment variables: source ~/.bashrc
• Install version 9: nvm install 9
• Set default version: nvm alias default 9
• Verify node version: nvm --version

Local

• npm start anywhere where Node.Js v9 runs
• Container hosting, sample deployment on Heroku

Docker

• Build docker image
• Run a container from the newly created image

AWS

• Run npm install
• Configure credentials: ./node_modules/serverless/bin/serverless config credentials --provider aws --key AWSKEY --secret AWSKEYPASSWORD
• Deploy: ./node_modules/serverless/bin/serverless deploy --stage stage --region us-east-2
• To test deployed end-point (replace the end-ponit):

curl -XPOST   -H "Content-Type: application/json" \
              -H "x-api-key: f84e2396-9c14-11e8-98d0-529269fb1459" \
              -d  "@./test/sampleData.json" 'https://qnwzp7kmtj.execute-api.us-east-2.amazonaws.com/stage/zip'

• Destroy: ./node_modules/serverless/bin/serverless remove --stage stage --region us-east-2