Learn NOMAD with Real Code Examples

Server nodes: responsible for scheduling and cluster coordination

Client nodes: execute tasks/jobs assigned by servers

Consul: optional integration for service discovery and health checks

Vault: optional integration for secrets management

HCL/JSON job files define tasks, groups, and resources

HCL/JSON job defines tasks, groups, resources

Nomad server schedules allocations on clients

Clients execute workloads with resource constraints

Optional integrations enhance discovery and secrets

Monitoring via CLI, API, or Web UI

Server-client architecture

Task groups for co-located workloads

Job evaluation and scheduling loop

Integration with external services (Consul/Vault)

Allocation-based workload execution

Hybrid-cloud application orchestration

Microservices and batch workloads in production

Multi-region deployment with failover

CI/CD pipelines with Nomad job triggers

Integration with Consul for service mesh

Simplicity: single binary, minimal operational complexity

Flexibility: supports diverse workloads

Declarative: jobs defined in HCL/JSON

Scalable: multi-region, multi-datacenter

Integration: works with Consul, Vault, Terraform

Use multiple server nodes for HA

Use namespaces for workload segregation

Distribute clients across regions

Monitor resource usage and scale tasks

Batch and periodic jobs for workload efficiency

Convert Docker Compose or Kubernetes workloads to Nomad jobs

Define task groups and resource allocations

Integrate with Consul for service discovery

Use Vault for secrets migration

Test in staging environment before production