container-stress

This is Stress test for container environments. This project work base on stress you can access the source on this link: https://people.seas.harvard.edu/~apw/stress/ ( 404 :( )

Build Dockerfile

we use alpine as the base image. for build Dockerfile Use:

$ docker build --tag=<DOCKER_IMAGE_NAME_TAG> .

Stress command

stress imposes certain types of compute stress on your system

Usage: stress [OPTION [ARG]] ...
 -?, --help         show this help statement
     --version      show version statement
 -v, --verbose      be verbose
 -q, --quiet        be quiet
 -n, --dry-run      show what would have been done
 -t, --timeout N    timeout after N seconds
     --backoff N    wait factor of N microseconds before work starts
 -c, --cpu N        spawn N workers spinning on sqrt()
 -i, --io N         spawn N workers spinning on sync()
 -m, --vm N         spawn N workers spinning on malloc()/free()
     --vm-bytes B   malloc B bytes per vm worker (default is 256MB)
     --vm-stride B  touch a byte every B bytes (default is 4096)
     --vm-hang N    sleep N secs before free (default none, 0 is inf)
     --vm-keep      redirty memory instead of freeing and reallocating
 -d, --hdd N        spawn N workers spinning on write()/unlink()
     --hdd-bytes B  write B bytes per hdd worker (default is 1GB)

Example: stress --cpu 8 --io 4 --vm 2 --vm-bytes 128M --timeout 10s

Note: Numbers may be suffixed with s,m,h,d,y (time) or B,K,M,G (size).

stress command examples :

Command
stress --verbose --vm 1 --vm-bytes 256M
stress --verbose --vm 1 --vm-bytes 256M
stress --verbose --vm 1 --vm-bytes 512M
stress --verbose --vm 1 --vm-bytes 1024M
stress --verbose --vm 2 --vm-bytes 256M
stress --verbose --vm 2 --vm-bytes 512M
stress --verbose --vm 2 --vm-bytes 1024M

Run Stress test on single docker host

For test on single docker host you can use this command:

$ docker run --rm -it mohsenmottaghi/container-stress <COMMAND>

or

$ docker run --name stress -idt mohsenmottaghi/container-stress <COMMAND>

Run Stress test on Swarm cluster

For stress test on Swarm cluster, you can use the docker-compose.yml file.

1. initialize the Swarm cluster or use your current cluster

2. edit the docker-compose.yml with your specific command and replicas

3. deploy stress stack with command like this:

   $ docker stack deploy -c docker-compose.yml <STACK_NAME>
   

4. (Optional) you can use Docker viualizer

   $ docker service create \
        --name=viz \
        --publish=8080:8080/tcp \
        --constraint=node.role==manager \
        --mount=type=bind,src=/var/run/docker.sock,dst=/var/run/docker.sock \
        dockersamples/visualizer
   

Run Stress test on Kubernetes Cluster

For stress test on kubernetes cluster, you need to deploy the Deployment yaml file.

$ kubectl apply -f stress-deployment.yml

To check the deployment status:

$ kubectl get deployment container-stress

or check all resources:

$ kubectl get all

To remove deployment:

$ kubectl delete deployment container-stress

or

$ kubectl delete -f stress-deployment.yml