https://github.com/mashiike/flexentry

Flexible entry point for Amazon ECS Task and Amazon Lambda container images
https://github.com/mashiike/flexentry

Last synced: 3 months ago
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Flexible entry point for Amazon ECS Task and Amazon Lambda container images

• Host: GitHub
• URL: https://github.com/mashiike/flexentry
• Owner: mashiike
• License: mit
• Created: 2022-01-27T00:53:40.000Z (over 3 years ago)
• Default Branch: main
• Last Pushed: 2023-06-05T20:57:46.000Z (almost 2 years ago)
• Last Synced: 2024-06-21T11:02:27.883Z (11 months ago)
• Language: Go
• Size: 56.6 KB
• Stars: 0
• Watchers: 2
• Forks: 0
• Open Issues: 6
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

        
# flexentry

![Latest GitHub release](https://img.shields.io/github/release/mashiike/flexentry.svg)

![Github Actions test](https://github.com/mashiike/flexentry/workflows/Test/badge.svg?branch=main)

[![Go Report Card](https://goreportcard.com/badge/mashiike/flexentry)](https://goreportcard.com/report/mashiike/flexentry) [![License](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/mashiike/flexentry/blob/master/LICENSE)

Flexible entry point for Amazon ECS Task and Amazon Lambda container images

## Usage 

```Dockerfile

FROM golang:1.17-buster

RUN apt-get update && \

    apt-get install -y unzip && \

    apt-get clean

RUN curl "https://awscli.amazonaws.com/awscli-exe-linux-x86_64.zip" -o "awscliv2.zip" && \

    unzip awscliv2.zip && \

    ./aws/install && \

    rm -R aws && \

    rm awscliv2.zip

ARG FLEXENTRY_VERSION=0.2.0

RUN curl -L https://github.com/mashiike/flexentry/releases/download/v${FLEXENTRY_VERSION}/flexentry_${FLEXENTRY_VERSION}_linux_amd64.tar.gz | tar zxvf - && \

    install flexentry /usr/local/bin/

ENTRYPOINT ["flexentry"]

```

Basically, all you have to do is specify the entry point of the container image.

### Run on ECS Task

```json

{

   "containerDefinitions": [ 

      { 

         "command": [

            "aws --version"

         ],

         "essential": true,

         "image": "",

         "name": "sample-app"

      }

   ],

   "cpu": "256",

   "executionRoleArn": "arn:aws:iam::012345678910:role/ecsTaskExecutionRole",

   "family": "sample-task-definition",

   "memory": "512",

   "networkMode": "awsvpc",

   "requiresCompatibilities": [ 

       "FARGATE" 

    ]

}

```

Decide what to execute with `command`, as in the task definition above.

### Run on Lambda with container image

If the environment variable `FLEXENTRY_COMMAND` is specified, the command will be executed.

Otherwise, the command to be executed will be determined according to the payload of the event.

```json

{

    "cmd": "aws --version",

    "description": "this is sample"

}

```

If the event payload is a string, it will be interpreted as a command.

Otherwise, by default, it looks at the `cmd` key to decide which command to execute.

To change the key, specify a jq expression for reference with `FLEXENTRY_COMMAND_JQ_EXPR`.

For example `export FLEXENTRY_COMMAND_JQ_EXPR=".command"` 

When executed by Amazon Lambda, the event payload is passed directly to the standard input as JSON data.

## LICENSE

MIT