Change the default port of mongodb on ECS Instance - mongodb

Question

EDIT : I finally resolved my problem, I replace the command line by :
"command": [
"mongod",
"--port",
"3001"
]
I want to run mongodb on port 3001 instead of 27017 on my ECS instance. I have one application (annonces) and one database (mongodb).
This is my Task Definition configuration :
{
"executionRoleArn": null,
"containerDefinitions": [
{
"dnsSearchDomains": null,
"logConfiguration": null,
"entryPoint": null,
"portMappings": [
{
"hostPort": 80,
"protocol": "tcp",
"containerPort": 4001
}
],
"command": null,
"linuxParameters": null,
"cpu": 0,
"environment": [
{
"name": "DB_URI",
"value": "mongodb://mongo:3001/db-annonces"
}
],
"ulimits": null,
"dnsServers": null,
"mountPoints": [],
"workingDirectory": null,
"dockerSecurityOptions": null,
"memory": 128,
"memoryReservation": null,
"volumesFrom": [],
"image": "XXXXXXXXXXX.dkr.ecr.eu-west-3.amazonaws.com/annonces-service:latest",
"disableNetworking": null,
"healthCheck": null,
"essential": true,
"links": [
"mongo"
],
"hostname": null,
"extraHosts": null,
"user": null,
"readonlyRootFilesystem": null,
"dockerLabels": null,
"privileged": null,
"name": "annonces"
},
{
"dnsSearchDomains": null,
"logConfiguration": null,
"entryPoint": [],
"portMappings": [
{
"hostPort": 3001,
"protocol": "tcp",
"containerPort": 3001
}
],
"command": [
"mongod --port 3001"
],
"linuxParameters": null,
"cpu": 0,
"environment": [],
"ulimits": null,
"dnsServers": null,
"mountPoints": [],
"workingDirectory": null,
"dockerSecurityOptions": null,
"memory": 128,
"memoryReservation": null,
"volumesFrom": [],
"image": "mongo:latest",
"disableNetworking": null,
"healthCheck": null,
"essential": false,
"links": null,
"hostname": "mongo",
"extraHosts": null,
"user": null,
"readonlyRootFilesystem": null,
"dockerLabels": null,
"privileged": null,
"name": "mongo"
}
],
"placementConstraints": [],
"memory": null,
"taskRoleArn": null,
"compatibilities": [
"EC2"
],
"taskDefinitionArn": "arn:aws:ecs:eu-west-3:XXXXXXXX:task-definition/annonces-task:17",
"family": "annonces-task",
"requiresAttributes": [
{
"targetId": null,
"targetType": null,
"value": null,
"name": "com.amazonaws.ecs.capability.docker-remote-api.1.17"
},
{
"targetId": null,
"targetType": null,
"value": null,
"name": "com.amazonaws.ecs.capability.ecr-auth"
}
],
"requiresCompatibilities": null,
"networkMode": "bridge",
"cpu": null,
"revision": 17,
"status": "ACTIVE",
"volumes": []
}
The problem seems to come from the line :
"command": [
"mongod --port 3001"
]
When I try to run the task, the task shut down immediately. If I remove this line, it works but the database is not on port 3001.
If i run the command docker logs on the specific container, I get the following error :
/usr/local/bin/docker-entrypoint.sh: line 340: exec: mongod --port 3001: not found