generate `docker run` command from AWS ECS TaskDefinition

taskdef.sh

#!/bin/bash

taskDefinitionName=$1
OPTS=""

definition=$(aws ecs describe-task-definition --task-definition ${taskDefinitionName} | jq '.taskDefinition.containerDefinitions[0]')
image=$(echo $definition | jq -r '.image')

# envvar
OPTS="${OPTS}$(echo $definition | jq -r '.environment[] | "-e \(.name)=\"\(.value)\""' | tr '\n' ' ')"

OPTS="${OPTS}$(echo $definition | jq -r '.portMappings[0] | "-p \(.hostPort):\(.containerPort)"')"

echo "docker run ${OPTS} ${image}"

Usage

$ ./taskdef.sh foo:32