Flexible entry point for Amazon ECS Task and Amazon Lambda container images
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.
{
"containerDefinitions": [
{
"command": [
"aws --version"
],
"essential": true,
"image": "<ecr image path>",
"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.
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.
{
"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.
MIT