Argo Rollouts vs Plural

Argo Rollouts is a self-hosted Kubernetes controller for managing how application updates reach users. It supports BlueGreen, Canary and Rolling Update strategies, with weighted traffic shifting through ingress controllers or service meshes. Without a traffic-routing provider, it can adjust ReplicaSet counts instead. Metric integrations let it assess KPIs and automate promotion or rollback, while leaving room for manual judgment. Supported providers include NGINX, AWS ALB, Istio and Traefik for traffic, and Prometheus, Datadog, New Relic, Graphite and InfluxDB for metrics. It can operate independently of Argo CD and respond to Kubernetes manifest changes whether they come from GitOps or traditional CI/CD. Each cluster running Rollout workloads needs its own controller and CRD; a Rollout specification covers one application, not dependencies among applications. Shared-resource or worker-queue applications may be a poor fit, and infrastructure applications are not recommended. Argo Rollouts is free and open source. It runs on Linux, macOS, Windows or self-hosted environments.

Plural is an AI tool for infrastructure work, presented for platform and DevOps teams. It can upgrade clusters, resolve incidents, patch vulnerabilities, optimize costs, and execute changes across code, clusters, and cloud. Its project-scoped Workbenches package an AI agent’s prompt, capabilities, tools, and automation triggers for infrastructure operations. Plural says agents can draw on a live semantic graph covering clusters, stacks, services, and changes across an estate. Integrations include Prometheus, Datadog, Loki, Elastic, Tempo, Jaeger, GitHub, GitLab, Bitbucket, Slack, Microsoft Teams, Jira, and Linear. Cloud tools provide SQL-queryable access to AWS, GCP, and Azure data, including billing and infrastructure services. Changes are submitted as pull requests in existing repositories for human review. Plural says actions are logged, permissions are bounded, tool calls and decisions can be inspected, and changes can be reviewed before confirmation. Sandbox is free for a 14-day platform trial. Pro starts at $450/mo for one cluster, with each additional cluster at $250/mo, and includes a 30-day free trial. Pro uses shared Plural infrastructure; Enterprise offers shared, dedicated, or on-prem hosting.