Application Service Mesh (ASM)

The term “service mesh” is used to describe the network of microservices that make up applications and the interactions between applications. With the popularization of microservices, a service mesh grows in size and complexity, and it can become harder to understand and manage. Greater challenges also emerge in the basic operations and advanced O&M of the distributed microservice architecture. 

Application Service Mesh (ASM) is a non-intrusive solution for you to manage microservice lifecycle and traffic. ASM’s diverse feature set, such as load balancing, outlier detection, and fault injection, lets you successfully and efficiently run a distributed microservice architecture, and provides a unified way to secure, connect, and monitor microservices. ASM also helps reduce the complexity of application deployments and eases the strain on your development teams. 

ASM is developed based on Istio and seamlessly interconnects with Cloud Container Engine (CCE), an enterprise-grade Kubernetes cluster service on Open Telekom Cloud. It also provides diversified built-in grayscale releases, including canary release and blue-green deployment, for one-stop, automated releases. With better usability, reliability and visualization, ASM provides you with out-of-the-box features and an enhanced user experience.

The out-of-the-box usability allows you to use a service mesh without any code rewrite or manual installation. The Build-in Canary Release and Blue-Green Deployment help users deploy the grayscale version and switchover traffic with a few clicks.

ASM provides policy-based Intelligent Routing and Flexible Traffic Management. Load balancing, service routing, fault injection, and outlier detection policies can be intuitively configured. Microservice traffic management can be real-time, visualized, intelligent, and automated, needing no modifications to your applications.

You benefit from Graphical Application Topology and Visualized Traffic Management. ASM provides visualized traffic monitoring, which clearly displays information on tracing health status, abnormal responses, responses with long latency, and traffic status topology.

The performance and reliability of the control plane and data plane are enhanced based on the community version.

• Layer-7 connection pool management: You can set the maximum number of HTTP requests, maximum number of retry times, maximum number of pending requests, maximum number of requests for each connection, and maximum connection idle period.
• Layer-4 connection pool management: You can set the maximum TCP connections, connection timeout duration, maximum non-responses, minimum idle period, and health check interval.
• Outlier detection: You can configure outlier detection rules, such as the number of consecutive errors allowed before a pod is evicted, check period, base ejection time, and maximum percentage of ejected pods.
• Retry: You can configure the number of HTTP retry times, retry timeout duration, and retry condition.
• Timeout: You can configure the HTTP request timeout duration.
• Load balancing: You can configure multiple load balancing policies, such as random, round robin, least connections, and consistent hashing.
• HTTP header: You can flexibly add, edit, and remove HTTP headers, including the operations on the HTTP headers before the request is forwarded to the destination service and before the response is returned to the client.
• Fault injection: You can configure delay and abort faults.

• Application access topology: An application access topology shows the dependencies between services.
• Service running monitoring: Service access information, including service information, different versions of the service, QPS, and latency can be monitored.
• Access logs: Service access logs can be collected and searched.
• Tracing: Non-intrusive tracing points. You can use the tracing data to demarcate and locate faults.

• Spring Cloud: supports unified management of services developed using Spring Cloud SDK.
• Dubbo: supports unified management of services developed using Dubbo SDK.

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Pricing models: Management & Applications
Service description incl. price list (PDF)