Nomad Has a Free API — Simple Orchestration Beyond Kubernetes

#nomad #orchestration #devops #hashicorp

HashiCorp Nomad is a workload orchestrator that deploys containers, VMs, and binaries. If Kubernetes is too complex, Nomad gives you 80% of the value with 20% of the complexity.

What Is Nomad?

Nomad schedules and deploys workloads across a cluster. It handles Docker containers, Java apps, binaries, and even Windows services.

Features:

Multi-workload (Docker, exec, Java, QEMU)
Single binary
Multi-datacenter
Batch scheduling
Service mesh (with Consul)
Free and open source

Quick Start

# Install
curl -fsSL https://apt.releases.hashicorp.com/gpg | sudo apt-key add -
sudo apt install nomad

# Dev mode
nomad agent -dev

UI: http://localhost:4646

Job File

job "web" {
  group "app" {
    count = 3
    task "server" {
      driver = "docker"
      config {
        image = "nginx:latest"
        ports = ["http"]
      }
      resources {
        cpu    = 256
        memory = 128
      }
    }
    network {
      port "http" { to = 80 }
    }
  }
}

REST API

# List jobs
curl http://localhost:4646/v1/jobs

# Get job status
curl http://localhost:4646/v1/job/web

# Submit job
nomad job run web.nomad.hcl

# Scale
curl -X POST http://localhost:4646/v1/job/web/scale \
  -d '{"Count":5,"Target":{"Group":"app"}}'