What should I use for deployment orchestration across services?

If you mean orchestrating deployments across multiple services in a modern cloud-native setup, the best choice depends on how much control, complexity, and platform support you want.

Good default recommendation

Argo CD + GitOps

Use Argo CD if:

• you run on Kubernetes
• you want deployments driven from Git
• you need consistent rollouts across many services
• you want easy rollback and auditability

Why it’s a strong choice:

• declarative deployments from Git
• supports multi-service apps well
• good visibility into rollout state
• works nicely with Helm, Kustomize, and plain YAML
• strong ecosystem for progressive delivery when paired with Argo Rollouts

If you want cluster/app orchestration beyond GitOps

Rancher Fleet

Good if:

• you manage lots of clusters
• you want simpler multi-cluster deployment management
• you already use Rancher

If you want general workflow orchestration

Temporal

Use Temporal if:

• deployment orchestration involves custom steps, approvals, canaries, validations, external systems, or complex dependency handling
• you need resilient workflows, retries, and stateful orchestration

Temporal is not a deployment tool by itself, but it’s excellent for coordinating deployment processes.

If you want CI/CD platform orchestration

GitHub Actions / GitLab CI / Jenkins

Good for:

• simple-to-medium deployment pipelines
• building, testing, and pushing artifacts
• triggering Argo CD, Helm, or cloud deploys

But these are usually better as pipeline runners, not the long-term source of deployment truth.

If you’re on a specific cloud

• AWS: CodePipeline + CodeDeploy / ECS deployments / EKS GitOps
• GCP: Cloud Build + GKE GitOps
• Azure: Azure DevOps + Flux/Argo CD

Practical recommendation by scenario

• Kubernetes microservices → Argo CD
• Multi-cluster Kubernetes → Argo CD or Fleet
• Complex rollout logic with retries/approvals → Temporal + Argo CD
• Simple pipeline-driven deploys → GitHub Actions/GitLab CI
• Traditional VM-based deployment → Ansible / Terraform / CI pipeline

My short answer

For most teams deploying multiple services today, I’d start with:

Argo CD for deployment orchestration, and CI (GitHub Actions/GitLab CI) for build/test.

If you want, I can also give you:

1. a decision matrix for Argo CD vs Temporal vs Jenkins vs Spinnaker, or
2. a reference architecture for orchestrating 20+ services across environments.