# Netdata Cloud On-Prem Netdata Cloud is built as microservices and is orchestrated by a Kubernetes cluster, providing a highly available and auto-scaled observability platform. The overall architecture looks like this: ```mermaid flowchart TD Agents("🌍 <b>Netdata Agents</b><br/>Users' infrastructure<br/>Netdata Children & Parents") users[["🔥 <b>Unified Dashboards</b><br/>Integrated Infrastructure<br/>Dashboards"]] ingress("🛡️ <b>Ingress Gateway</b><br/>TLS termination") traefik((("🔒 <b>Traefik</b><br/>Authentication &<br/>Authorization"))) emqx(("📤 <b>EMQX</b><br/>Agents Communication<br/>Message Bus<br/>MQTT")) pulsar(("⚡ <b>Pulsar</b><br/>Internal Microservices<br/>Message Bus")) frontend("🌐 <b>Front-End</b><br/>Static Web Files") auth("👨💼 <b>Users & Agents</b><br/>Authorization<br/>Microservices") spaceroom("🏡 <b>Spaces, Rooms,<br/>Nodes, Settings</b><br/>Microservices for<br/>managing Spaces,<br/>Rooms, Nodes and<br/>related settings") charts("📈 <b>Metrics & Queries</b><br/>Microservices for<br/>dispatching queries<br/>to Netdata Agents") alerts("🔔 <b>Alerts & Notifications</b><br/>Microservices for<br/>tracking alert<br/>transitions and<br/>deduplicating alerts") sql[("✨ <b>PostgreSQL</b><br/>Users, Spaces, Rooms,<br/>Agents, Nodes, Metric<br/>Names, Metrics Retention,<br/>Custom Dashboards,<br/>Settings")] redis[("🗒️ <b>Redis</b><br/>Caches needed<br/>by Microservices")] elk[("🗞️ <b>Elasticsearch</b><br/>Feed Events Database")] bridges("🤝 <b>Input & Output</b><br/>Microservices bridging<br/>agents to internal<br/>components") notifications("📢 <b>Notifications Integrations</b><br/>Dispatch alert<br/>notifications to<br/>3rd party services") feed("📝 <b>Feed & Events</b><br/>Microservices for<br/>managing the events feed") users --> ingress agents --> ingress ingress --> traefik ingress ==>|agents<br/>websockets| emqx traefik -.- auth traefik ==>|http| spaceroom traefik ==>|http| frontend traefik ==>|http| charts traefik ==>|http| alerts spaceroom o-...-o pulsar spaceroom -.- redis spaceroom x-..-x sql spaceroom -.-> feed charts o-.-o pulsar charts -.- redis charts x-.-x sql charts -..-> feed alerts o-.-o pulsar alerts -.- redis alerts x-.-x sql alerts -..-> feed auth o-.-o pulsar auth -.- redis auth x-.-x sql auth -.-> feed feed <--> elk alerts ----> notifications %% auth ~~~ spaceroom emqx <.-> bridges o-..-o pulsar ```