Example jobs
Redis Server
$ nomad job run redis.nomad
will start a redis server using nomad-driver-containerd
Exec into redis container
$ nomad job status redis
Copy the allocation ID from the output of nomad job status command.
$ nomad alloc exec -i -t <allocation_id> /bin/sh
Signal Handler
$ nomad job run signal.nomad
will start the signal handler container. You can send any signal
(from a list of supported signals)
to this container and it will print the signal on stdout for you.
$ nomad job status signal
Copy the allocation ID from the output of nomad job status command.
$ nomad alloc signal -s <signal> <allocation_id>
Stress
$ nomad job run stress.nomad
will start a stress test container. This container is based on linux stress-ng tool which is used for generating
heavy load on CPU and memory to do stress testing.
This container executes the following command as an entrypoint to the container:
stress-ng --cpu 4 --io 4 --vm 4 --vm-bytes 256M --fork 4 --timeout 180s
The above command will run stress tests for 3 minutes (180 secs).
$ nomad job status stress
Copy the allocation ID from the output of nomad job status command.
While the container is running, you can check the stats using:
$ nomad alloc status -stats <allocation_id>
Capabilities
$ nomad job run capabilities.nomad
will start an ubuntu:16.04 container using nomad-driver-containerd.
This container sleeps for 10 mins (600 seconds) and add (and drop) the following capabilities.
New capabilities added:
CAP_SYS_ADMIN
CAP_IPC_OWNER
CAP_IPC_LOCK
Existing capabilities dropped:
CAP_CHOWN
CAP_SYS_CHROOT
CAP_DAC_OVERRIDE
Exec into capabilities container to check capabilities
$ nomad job status capabilities
Copy the allocation ID from the output of nomad job status command.
$ nomad alloc exec -i -t <allocation_id> /bin/bash
Print capabilities (Inside the container)
$ capsh --print