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What is Submariner?

With the growing adoption of Kubernetes, businesses are increasingly recognizing the importance of managing and deploying multiple clusters to ensure vital functionalities like geo-redundancy, scalability, and fault isolation for their applications. Submariner allows applications and services to function effortlessly across different cloud providers, data centers, and geographic areas. To kick off this process, a Broker must be established on a single Kubernetes cluster, with the API server of this cluster being accessible to all other clusters linked via Submariner. This Broker can be hosted on a dedicated cluster or any of the existing connected ones. After Submariner is installed on a cluster with the necessary Broker credentials, it enables the sharing of Cluster and Endpoint objects between clusters by utilizing methods such as push, pull, and watching, thus creating connections and pathways to other clusters. It's vital that the worker node IP addresses in all linked clusters are outside the Pod and Service CIDR ranges to avoid conflicts. By adhering to these requirements, teams can fully leverage the advantages offered by multi-cluster configurations. This strategic approach not only enhances resilience but also optimizes resource allocation across diverse environments.

What is Cilium?

Cilium is a cutting-edge open-source solution aimed at improving, securing, and monitoring network communications within container workloads and cloud-native setups, harnessing the innovative Kernel technology referred to as eBPF. In contrast to conventional configurations, Kubernetes lacks an inherent Load Balancing mechanism, which is typically managed by cloud providers or the networking teams handling private cloud environments. Cilium effectively oversees incoming traffic by employing BGP while utilizing XDP and eBPF to enhance overall performance. The integration of these technologies results in a robust and secure load balancing system. Operating directly at the kernel level, Cilium paired with eBPF facilitates informed connectivity decisions for various workloads, whether they exist on the same node or are distributed across multiple clusters. By utilizing eBPF and XDP, Cilium not only boosts latency and performance but also eliminates the necessity for Kube-proxy, making operations more efficient and optimizing resource allocation. This transformation not only simplifies the network architecture but also allows developers to dedicate more attention to application development instead of being bogged down by infrastructure issues, ultimately fostering innovation and productivity. As a result, Cilium stands out as an essential tool for modern cloud-native environments.

Media

Media

Integrations Supported

Kubernetes

Integrations Supported

Kubernetes
Alibaba Cloud Container Registry
Amazon Web Services (AWS)
Ambient Mesh
Constellation
Dash0
DigitalOcean
GitLab
Google Kubernetes Engine (GKE)
Isovalent
Meshery
Mindflow
Mirantis Kubernetes Engine
Netdata
Slack
Trip.com

API Availability

Has API

API Availability

Pricing Information

Pricing not provided

Pricing Information

Pricing not provided

Supported Platforms

SaaS

Supported Platforms

SaaS

Customer Service / Support

Web-Based Support

Customer Service / Support

Web-Based Support

Training Options

Documentation Hub

Training Options

Documentation Hub

Company Facts

Organization Name

Submariner

Company Website

submariner.io

Company Facts

Organization Name

Cilium

Company Website

cilium.io

Categories and Features

Container Networking

Not specified

Categories and Features

Container Networking

Not specified

Observability

Not specified

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