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<button id=search-close title="Cancel search" type=reset aria-label="Cancel search"><svg class="icon cancel-x"><use xlink:href="/v1.9/img/icons.svg#cancel-x"/></svg></button></form></nav></header><div class=banner-container></div><main class=primary><div id=sidebar-container class="sidebar-container sidebar-offcanvas"><nav id=sidebar aria-label="Section Navigation"><div class=directory><div class=card><button class="header dynamic" id=card0 title="Blog posts for 2021." aria-controls=card0-body><svg class="icon blog"><use xlink:href="/v1.9/img/icons.svg#blog"/></svg>2021 Posts</button><div class=body aria-labelledby=card0 role=region id=card0-body><ul role=tree aria-expanded=true class=leaf-section aria-labelledby=card0><li role=none><a role=treeitem title="The Product Security working group announces Patch Tuesdays, how 0-days and embargoes are handled, updates to the security best practices page and the notification of the early disclosure list (May 11, 2021)" href=/v1.9/blog/2021/patch-tuesdays/>Updates to how Istio security releases are handled: Patch Tuesday, embargoes, and 0-days</a></li><li role=none><a role=treeitem title="Learn how to use discovery selectors and how they intersect with Sidecar resources (April 30, 2021)" href=/v1.9/blog/2021/discovery-selectors/>Use discovery selectors to configure namespaces for your Istio service mesh</a></li><li role=none><a role=treeitem title="Understanding the upcoming changes to Istio networking, how they may impact your cluster, and what action to take (April 15, 2021)" href=/v1.9/blog/2021/upcoming-networking-changes/>Upcoming networking changes in Istio 1.10</a></li><li role=none><a role=treeitem title="An update on Envoy and Istio's WebAssembly-based extensibility effort (March 5, 2021)" href=/v1.9/blog/2021/wasm-progress/>Istio and Envoy WebAssembly Extensibility, One Year On</a></li><li role=none><a role=treeitem title="A tutorial to help customers migrate from the deprecated v1alpha1 security policy to the supported v1beta1 version (March 3, 2021)" href=/v1.9/blog/2021/migrate-alpha-policy/>Migrate pre-Istio 1.4 Alpha security policy to the current APIs</a></li><li role=none><a role=treeitem title="Understanding the benefits Istio brings, even when no configuration is used (February 25, 2021)" href=/v1.9/blog/2021/zero-config-istio/>Zero Configuration Istio</a></li><li role=none><a role=treeitem title="Learn about sessions, panels, workshops and more on the IstioCon website (February 16, 2021)" href=/v1.9/blog/2021/istiocon-2021-program/>IstioCon 2021: Schedule Is Live!</a></li><li role=none><a role=treeitem title="AuthorizationPolicy now supports CUSTOM action to delegate the authorization to external system (February 9, 2021)" href=/v1.9/blog/2021/better-external-authz/>Better External Authorization</a></li></ul></div></div><div class=card><button class="header dynamic" id=card1 title="Blog posts for 2020." aria-controls=card1-body><svg class="icon blog"><use xlink:href="/v1.9/img/icons.svg#blog"/></svg>2020 Posts</button><div class="body default" aria-labelledby=card1 role=region id=card1-body><ul role=tree aria-expanded=true class=leaf-section aria-labelledby=card1><li role=none><a role=treeitem title="Deploy multiple Istio egress gateways independently to have fine-grained control of egress communication from the mesh (December 16, 2020)" href=/v1.9/blog/2020/proxying-legacy-services-using-egress-gateways/>Proxying legacy services using Istio egress gateways</a></li><li role=none><a role=treeitem title="How to enable proxy protocol on AWS NLB and Istio ingress gateway (December 11, 2020)" href=/v1.9/blog/2020/show-source-ip/>Proxy protocol on AWS NLB and Istio ingress gateway</a></li><li role=none><a role=treeitem title="The inaugural conference for Istio will take place at the end of February (December 8, 2020)" href=/v1.9/blog/2020/istiocon-2021/>Join us for the first IstioCon in 2021!</a></li><li role=none><a role=treeitem title="How to ensure your clusters are not impacted by Docker Hub rate limiting (December 7, 2020)" href=/v1.9/blog/2020/docker-rate-limit/>Handling Docker Hub rate limiting</a></li><li role=none><a role=treeitem title="Workload Local DNS resolution to simplify VM integration, multicluster, and more (November 12, 2020)" href=/v1.9/blog/2020/dns-proxy/>Expanding into New Frontiers - Smart DNS Proxying in Istio</a></li><li role=none><a role=treeitem title="Announcing the four newest Istio Steering Committee members (September 29, 2020)" href=/v1.9/blog/2020/steering-election-results/>2020 Steering Committee Election Results</a></li><li role=none><a role=treeitem title="The effect of security policies on latency of requests (September 15, 2020)" href=/v1.9/blog/2020/large-scale-security-policy-performance-tests/>Large Scale Security Policy Performance Tests</a></li><li role=none><a role=treeitem title="A new deployment model for Istio (August 27, 2020)" href=/v1.9/blog/2020/new-deployment-model/>Deploying Istio Control Planes Outside the Mesh</a></li><li role=none><a role=treeitem title="The Istio Steering Committee is now in part proportionally allocated to companies based on contribution, and in part elected by community members (August 24, 2020)" href=/v1.9/blog/2020/steering-changes/>Introducing the new Istio steering committee</a></li><li role=none><span role=treeitem class=current title="An alternative sidecar proxy for Istio (July 28, 2020)">Using MOSN with Istio: an alternative data plane</span></li><li role=none><a role=treeitem title="An update on trademarks and project governance (July 8, 2020)" href=/v1.9/blog/2020/open-usage/>Open and neutral: transferring our trademarks to the Open Usage Commons</a></li><li role=none><a role=treeitem title="A new way to manage installation of telemetry addons (June 4, 2020)" href=/v1.9/blog/2020/addon-rework/>Reworking our Addon Integrations</a></li><li role=none><a role=treeitem title="Describing the new functionality of Workload Entries (May 21, 2020)" href=/v1.9/blog/2020/workload-entry/>Introducing Workload Entries</a></li><li role=none><a role=treeitem title="Simplifying Istio upgrades by offering safe canary deployments of the control plane (May 19, 2020)" href=/v1.9/blog/2020/multiple-control-planes/>Safely Upgrade Istio using a Canary Control Plane Deployment</a></li><li role=none><a role=treeitem title="Configure the IBM Cloud Kubernetes Service Application Load Balancer to direct traffic to the Istio Ingress gateway with mutual TLS (May 15, 2020)" href=/v1.9/blog/2020/alb-ingress-gateway-iks/>Direct encrypted traffic from IBM Cloud Kubernetes Service Ingress to Istio Ingress Gateway</a></li><li role=none><a role=treeitem title="Community partner tooling of Wasm for Istio by Solo.io (March 25, 2020)" href=/v1.9/blog/2020/wasmhub-istio/>Extended and Improved WebAssemblyHub to Bring the Power of WebAssembly to Envoy and Istio</a></li><li role=none><a role=treeitem title="A mechanism to acquire and share an application certificate and key through mounted files (March 25, 2020)" href=/v1.9/blog/2020/proxy-cert/>Provision a certificate and key for an application without sidecars</a></li><li role=none><a role=treeitem title="Istiod consolidates the Istio control plane components into a single binary (March 19, 2020)" href=/v1.9/blog/2020/istiod/>Introducing istiod: simplifying the control plane</a></li><li role=none><a role=treeitem title="Configuring Wasm extensions for Envoy and Istio declaratively (March 16, 2020)" href=/v1.9/blog/2020/deploy-wasm-declarative/>Declarative WebAssembly deployment for Istio</a></li><li role=none><a role=treeitem title="The future of Istio extensibility using WASM (March 5, 2020)" href=/v1.9/blog/2020/wasm-announce/>Redefining extensibility in proxies - introducing WebAssembly to Envoy and Istio</a></li><li role=none><a role=treeitem title="A vision statement and roadmap for Istio in 2020 (March 3, 2020)" href=/v1.9/blog/2020/tradewinds-2020/>Istio in 2020 - Following the Trade Winds</a></li><li role=none><a role=treeitem title="A more secure way to manage secrets (February 20, 2020)" href=/v1.9/blog/2020/istio-agent/>Remove cross-pod unix domain sockets</a></li><li role=none><a role=treeitem title="Automating Istio configuration for Istio deployments (clusters) that work as a single mesh (January 5, 2020)" href=/v1.9/blog/2020/multi-cluster-mesh-automation/>Multicluster Istio configuration and service discovery using Admiral</a></li></ul></div></div><div class=card><button class="header dynamic" id=card2 title="Blog posts for 2019." aria-controls=card2-body><svg class="icon blog"><use xlink:href="/v1.9/img/icons.svg#blog"/></svg>2019 Posts</button><div class=body aria-labelledby=card2 role=region id=card2-body><ul role=tree aria-expanded=true class=leaf-section aria-labelledby=card2><li role=none><a role=treeitem title="Provision and manage DNS certificates in Istio (November 14, 2019)" href=/v1.9/blog/2019/dns-cert/>DNS Certificate Management</a></li><li role=none><a role=treeitem title="Analyze your Istio configuration to detect potential issues and get general insights (November 14, 2019)" href=/v1.9/blog/2019/introducing-istioctl-analyze/>Introducing istioctl analyze</a></li><li role=none><a role=treeitem title="Introduction to Istio's new operator-based installation and control plane management feature (November 14, 2019)" href=/v1.9/blog/2019/introducing-istio-operator/>Introducing the Istio Operator</a></li><li role=none><a role=treeitem title="Introduction, motivation and design principles for the Istio v1beta1 Authorization Policy (November 14, 2019)" href=/v1.9/blog/2019/v1beta1-authorization-policy/>Introducing the Istio v1beta1 Authorization Policy</a></li><li role=none><a role=treeitem title="Getting programmatic access to Istio resources (November 14, 2019)" href=/v1.9/blog/2019/announcing-istio-client-go/>Announcing Istio client-go</a></li><li role=none><a role=treeitem title="A more secure way to manage Istio webhooks (November 14, 2019)" href=/v1.9/blog/2019/webhook/>Secure Webhook Management</a></li><li role=none><a role=treeitem title="Configure Istio ingress gateway to act as a proxy for external services (October 15, 2019)" href=/v1.9/blog/2019/proxy/>Istio as a Proxy for External Services</a></li><li role=none><a role=treeitem title="Deploy environments that require isolation into separate meshes and enable inter-mesh communication by mesh federation (October 2, 2019)" href=/v1.9/blog/2019/isolated-clusters/>Multi-Mesh Deployments for Isolation and Boundary Protection</a></li><li role=none><a role=treeitem title="How can you use Istio to monitor blocked and passthrough external traffic (September 28, 2019)" href=/v1.9/blog/2019/monitoring-external-service-traffic/>Monitoring Blocked and Passthrough External Service Traffic</a></li><li role=none><a role=treeitem title="Using Istio to secure multi-cloud Kubernetes applications with zero code changes (September 18, 2019)" href=/v1.9/blog/2019/app-identity-and-access-adapter/>App Identity and Access Adapter</a></li><li role=none><a role=treeitem title="Demonstrates a Mixer out-of-process adapter which implements the Knative scale-from-zero logic (September 18, 2019)" href=/v1.9/blog/2019/knative-activator-adapter/>Mixer Adapter for Knative</a></li><li role=none><a role=treeitem title="Taking advantage of Kubernetes trustworthy JWTs to issue certificates for workload instances more securely (September 10, 2019)" href=/v1.9/blog/2019/trustworthy-jwt-sds/>Change in Secret Discovery Service in Istio 1.3</a></li><li role=none><a role=treeitem title="The design principles behind Istio's APIs and how those APIs are evolving (August 5, 2019)" href=/v1.9/blog/2019/evolving-istios-apis/>The Evolution of Istio's APIs</a></li><li role=none><a role=treeitem title="Comparison of alternative solutions to control egress traffic including performance considerations (July 22, 2019)" href=/v1.9/blog/2019/egress-traffic-control-in-istio-part-3/>Secure Control of Egress Traffic in Istio, part 3</a></li><li role=none><a role=treeitem title="Use Istio Egress Traffic Control to prevent attacks involving egress traffic (July 10, 2019)" href=/v1.9/blog/2019/egress-traffic-control-in-istio-part-2/>Secure Control of Egress Traffic in Istio, part 2</a></li><li role=none><a role=treeitem title="Tools and guidance for evaluating Istio's data plane performance (July 9, 2019)" href=/v1.9/blog/2019/performance-best-practices/>Best Practices: Benchmarking Service Mesh Performance</a></li><li role=none><a role=treeitem title="Learn how to extend the lifetime of Istio self-signed root certificate (June 7, 2019)" href=/v1.9/blog/2019/root-transition/>Extending Istio Self-Signed Root Certificate Lifetime</a></li><li role=none><a role=treeitem title="Attacks involving egress traffic and requirements for egress traffic control (May 22, 2019)" href=/v1.9/blog/2019/egress-traffic-control-in-istio-part-1/>Secure Control of Egress Traffic in Istio, part 1</a></li><li role=none><a role=treeitem title="An overview of Istio 1.1 performance (March 19, 2019)" href=/v1.9/blog/2019/istio1.1_perf/>Architecting Istio 1.1 for Performance</a></li><li role=none><a role=treeitem title="Configuring Istio route rules in a multicluster service mesh (February 7, 2019)" href=/v1.9/blog/2019/multicluster-version-routing/>Version Routing in a Multicluster Service Mesh</a></li><li role=none><a role=treeitem title="Announces the new Istio blog policy (February 5, 2019)" href=/v1.9/blog/2019/sail-the-blog/>Sail the Blog!</a></li><li role=none><a role=treeitem title="De-mystify how Istio manages to plugin its data-plane components into an existing deployment (January 31, 2019)" href=/v1.9/blog/2019/data-plane-setup/>Demystifying Istio's Sidecar Injection Model</a></li><li role=none><a role=treeitem title="Verifies the performance impact of adding an egress gateway (January 31, 2019)" href=/v1.9/blog/2019/egress-performance/>Egress Gateway Performance Investigation</a></li><li role=none><a role=treeitem title="Addressing application startup ordering and startup latency using AppSwitch (January 14, 2019)" href=/v1.9/blog/2019/appswitch/>Sidestepping Dependency Ordering with AppSwitch</a></li><li role=none><a role=treeitem title="Describes how to deploy a custom ingress gateway using cert-manager manually (January 10, 2019)" href=/v1.9/blog/2019/custom-ingress-gateway/>Deploy a Custom Ingress Gateway Using Cert-Manager</a></li><li role=none><a role=treeitem title="Istio has a new discussion board (January 10, 2019)" href=/v1.9/blog/2019/announcing-discuss.istio.io/>Announcing discuss.istio.io</a></li></ul></div></div><div class=card><button class="header dynamic" id=card3 title="Blog posts for 2018." aria-controls=card3-body><svg class="icon blog"><use xlink:href="/v1.9/img/icons.svg#blog"/></svg>2018 Posts</button><div class=body aria-labelledby=card3 role=region id=card3-body><ul role=tree aria-expanded=true class=leaf-section aria-labelledby=card3><li role=none><a role=treeitem title="How to use Istio for traffic management without deploying sidecar proxies (November 21, 2018)" href=/v1.9/blog/2018/incremental-traffic-management/>Incremental Istio Part 1, Traffic Management</a></li><li role=none><a role=treeitem title="Describes a simple scenario based on Istio's Bookinfo example (November 16, 2018)" href=/v1.9/blog/2018/egress-mongo/>Consuming External MongoDB Services</a></li><li role=none><a role=treeitem title="Istio hosting an all day Twitch stream to celebrate the 1.0 release (August 3, 2018)" href=/v1.9/blog/2018/istio-twitch-stream/>All Day Istio Twitch Stream</a></li><li role=none><a role=treeitem title="How HP is building its next-generation footwear personalization platform on Istio (July 31, 2018)" href=/v1.9/blog/2018/hp/>Istio a Game Changer for HP's FitStation Platform</a></li><li role=none><a role=treeitem title="Automatic application onboarding and latency optimizations using AppSwitch (July 30, 2018)" href=/v1.9/blog/2018/delayering-istio/>Delayering Istio with AppSwitch</a></li><li role=none><a role=treeitem title="Describe Istio's authorization feature and how to use it in various use cases (July 20, 2018)" href=/v1.9/blog/2018/istio-authorization/>Micro-Segmentation with Istio Authorization</a></li><li role=none><a role=treeitem title="How to export Istio Access Logs to different sinks like BigQuery, GCS, Pub/Sub through Stackdriver (July 9, 2018)" href=/v1.9/blog/2018/export-logs-through-stackdriver/>Exporting Logs to BigQuery, GCS, Pub/Sub through Stackdriver</a></li><li role=none><a role=treeitem title="Describes how to configure Istio for monitoring and access policies of HTTP egress traffic (June 22, 2018)" href=/v1.9/blog/2018/egress-monitoring-access-control/>Monitoring and Access Policies for HTTP Egress Traffic</a></li><li role=none><a role=treeitem title="Introduction, motivation and design principles for the Istio v1alpha3 routing API (April 25, 2018)" href=/v1.9/blog/2018/v1alpha3-routing/>Introducing the Istio v1alpha3 routing API</a></li><li role=none><a role=treeitem title="Describes how to configure Istio ingress with a network load balancer on AWS (April 20, 2018)" href=/v1.9/blog/2018/aws-nlb/>Configuring Istio Ingress with AWS NLB</a></li><li role=none><a role=treeitem title="Using Kubernetes namespaces and RBAC to create an Istio soft multi-tenancy environment (April 19, 2018)" href=/v1.9/blog/2018/soft-multitenancy/>Istio Soft Multi-Tenancy Support</a></li><li role=none><a role=treeitem title="An introduction to safer, lower-risk deployments and release to production (February 8, 2018)" href=/v1.9/blog/2018/traffic-mirroring/>Traffic Mirroring with Istio for Testing in Production</a></li><li role=none><a role=treeitem title="Describes a simple scenario based on Istio's Bookinfo example (February 6, 2018)" href=/v1.9/blog/2018/egress-tcp/>Consuming External TCP Services</a></li><li role=none><a role=treeitem title="Describes a simple scenario based on Istio's Bookinfo example (January 31, 2018)" href=/v1.9/blog/2018/egress-https/>Consuming External Web Services</a></li></ul></div></div><div class=card><button class="header dynamic" id=card4 title="Blog posts for 2017." aria-controls=card4-body><svg class="icon blog"><use xlink:href="/v1.9/img/icons.svg#blog"/></svg>2017 Posts</button><div class=body aria-labelledby=card4 role=region id=card4-body><ul role=tree aria-expanded=true class=leaf-section aria-labelledby=card4><li role=none><a role=treeitem title="Improving availability and reducing latency (December 7, 2017)" href=/v1.9/blog/2017/mixer-spof-myth/>Mixer and the SPOF Myth</a></li><li role=none><a role=treeitem title="Provides an overview of Mixer's plug-in architecture (November 3, 2017)" href=/v1.9/blog/2017/adapter-model/>Mixer Adapter Model</a></li><li role=none><a role=treeitem title="How Kubernetes Network Policy relates to Istio policy (August 10, 2017)" href=/v1.9/blog/2017/0.1-using-network-policy/>Using Network Policy with Istio</a></li><li role=none><a role=treeitem title="Using Istio to create autoscaled canary deployments (June 14, 2017)" href=/v1.9/blog/2017/0.1-canary/>Canary Deployments using Istio</a></li><li role=none><a role=treeitem title="Istio Authentication 0.1 announcement (May 25, 2017)" href=/v1.9/blog/2017/0.1-auth/>Using Istio to Improve End-to-End Security</a></li></ul></div></div></div></nav></div><div class=article-container><button tabindex=-1 id=sidebar-toggler title="Toggle the navigation bar"><svg class="icon pull"><use xlink:href="/v1.9/img/icons.svg#pull"/></svg></button><nav aria-label=Breadcrumb><ol><li><a href=/v1.9/ title="Connect, secure, control, and observe services.">Istio</a></li><li><a href=/v1.9/blog/ title="Posts about using Istio.">Blog</a></li><li><a href=/v1.9/blog/2020/ title="Blog posts for 2020.">2020 Posts</a></li><li>Using MOSN with Istio: an alternative data plane</li></ol></nav><article aria-labelledby=title><div class=title-area><div style=width:100%><h1 id=title>Using MOSN with Istio: an alternative data plane</h1><p class=subtitle>A Cloud Native Proxy for Edge or Service Mesh</p><p class=byline><span>By</span>
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<span class=attribution>Wang Fakang (mosn.io)</span><span> | </span><span><svg class="icon calendar"><use xlink:href="/v1.9/img/icons.svg#calendar"/></svg><span> </span>July 28, 2020</span><span> | </span><span title="1166 words"><svg class="icon clock"><use xlink:href="/v1.9/img/icons.svg#clock"/></svg><span> </span>6 minute read</span>
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<span> </span>
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<span></span></p></div></div><nav class=toc-inlined aria-label="Table of Contents"><div><hr><ol><li role=none aria-label=Background><a href=#background>Background</a><li role=none aria-label=Architecture><a href=#architecture>Architecture</a><li role=none aria-label="Why use MOSN?"><a href=#why-use-mosn>Why use MOSN?</a><li role=none aria-label="What is the difference between MOSN and Istio’s default proxy?"><a href=#what-is-the-difference-between-mosn-and-istio-s-default-proxy>What is the difference between MOSN and Istio’s default proxy?</a><ol><li role=none aria-label="Differences in language stacks"><a href=#differences-in-language-stacks>Differences in language stacks</a><li role=none aria-label="Differentiation of core competence"><a href=#differentiation-of-core-competence>Differentiation of core competence</a><li role=none aria-label="What are the drawbacks of MOSN"><a href=#what-are-the-drawbacks-of-mosn>What are the drawbacks of MOSN</a></ol></li><li role=none aria-label="MOSN with Istio"><a href=#mosn-with-istio>MOSN with Istio</a><li role=none aria-label="Setup Istio"><a href=#setup-istio>Setup Istio</a><li role=none aria-label="Setting MOSN as the Data Plane"><a href=#setting-mosn-as-the-data-plane>Setting MOSN as the Data Plane</a><li role=none aria-label="Bookinfo Examples"><a href=#bookinfo-examples>Bookinfo Examples</a><li role=none aria-label="Moving forward"><a href=#moving-forward>Moving forward</a><li role=none aria-label="Learn More"><a href=#learn-more>Learn More</a><li role=none aria-label="See also"><a href=#see-also>See also</a></li></ol><hr></div></nav><p><a href=https://github.com/mosn/mosn>MOSN</a> (Modular Open Smart Network) is a network proxy server written in GoLang. It was built at <a href=https://www.antfin.com>Ant Group</a> as a sidecar/API Gateway/cloud-native Ingress/Layer 4 or Layer 7 load balancer etc. Over time, we’ve added extra features, like a multi-protocol framework, multi-process plug-in mechanism, a DSL, and support for the <a href=https://www.envoyproxy.io/docs/envoy/latest/api-docs/xds_protocol>xDS APIs</a>. Supporting xDS means we are now able to use MOSN as the network proxy for Istio. This configuration is not supported by the Istio project; for help, please see <a href=#learn-more>Learn More</a> below.</p><h2 id=background>Background</h2><p>In the service mesh world, using Istio as the control plane has become the mainstream. Because Istio was built on Envoy, it uses Envoy’s data plane <a href=https://blog.envoyproxy.io/the-universal-data-plane-api-d15cec7a>APIs</a> (collectively known as the xDS APIs). These APIs have been standardized separately from Envoy, and so by implementing them in MOSN, we are able to drop in MOSN as a replacement for Envoy. Istio’s integration of third-party data planes can be implemented in three steps, as follows.</p><ul><li>Implement xDS protocols to fulfill the capabilities for data plane related services.</li><li>Build <code>proxyv2</code> images using Istio’s script and set the relevant <code>SIDECAR</code> and other parameters.</li><li>Specify a specific data plane via the <code>istioctl</code> tool and set the proxy-related configuration.</li></ul><h2 id=architecture>Architecture</h2><p>MOSN has a layered architecture with four layers, NET/IO, Protocol, Stream, and Proxy, as shown in the following figure.</p><figure style=width:80%><div class=wrapper-with-intrinsic-ratio style=padding-bottom:45.77056778679027%><a data-skipendnotes=true href=/v1.9/blog/2020/mosn-proxy/mosn-arch.png title="The architecture of MOSN"><img class=element-to-stretch src=/v1.9/blog/2020/mosn-proxy/mosn-arch.png alt="The architecture of MOSN"></a></div><figcaption>The architecture of MOSN</figcaption></figure><ul><li>NET/IO acts as the network layer, monitoring connections and incoming packets, and as a mount point for the listener filter and network filter.</li><li>Protocol is the multi-protocol engine layer that examines packets and uses the corresponding protocol for decode/encode processing.</li><li>Stream does a secondary encapsulation of the decode packet into stream, which acts as a mount for the stream filter.</li><li>Proxy acts as a forwarding framework for MOSN, and does proxy processing on the encapsulated streams.</li></ul><h2 id=why-use-mosn>Why use MOSN?</h2><p>Before the service mesh transformation, we have expected that as the next generation of Ant Group’s infrastructure, service mesh will inevitably bring revolutionary changes and evolution costs. We have a very ambitious blueprint: ready to integrate the original network and middleware various capabilities have been re-precipitated and polished to create a low-level platform for the next-generation architecture of the future, which will carry the responsibility of various service communications.</p><p>This is a long-term planning project that takes many years to build and meets the needs of the next five or even ten years, and cooperates to build a team that spans business, SRE, middleware, and infrastructure departments. We must have a network proxy forwarding plane with flexible expansion, high performance, and long-term evolution. Nginx and Envoy have a very long-term capacity accumulation and active community in the field of network agents. We have also borrowed from other excellent open source network agents such as Nginx and Envoy. At the same time, we have enhanced research and development efficiency and flexible expansion. Mesh transformation involves a large number of departments and R & D personnel. We must consider the landing cost of cross-team cooperation. Therefore, we have developed a new network proxy MOSN based on GoLang in the cloud-native scenario. For GoLang’s performance, we also did a full investigation and test in the early stage to meet the performance requirements of Ant Group’s services.</p><p>At the same time, we received a lot of feedback and needs from the end user community. Everyone has the same needs and thoughts. So we combined the actual situation of the community and ourselves to conduct the research and development of MOSN from the perspective of satisfying the community and users. We believe that the open source competition is mainly competition between standards and specifications. We need to make the most suitable implementation choice based on open source standards.</p><h2 id=what-is-the-difference-between-mosn-and-istio-s-default-proxy>What is the difference between MOSN and Istio’s default proxy?</h2><h3 id=differences-in-language-stacks>Differences in language stacks</h3><p>MOSN is written in GoLang. GoLang has strong guarantees in terms of production efficiency and memory security. At the same time, GoLang has an extensive library ecosystem in the cloud-native era. The performance is acceptable and usable in the service mesh scenario. Therefore, MOSN has a lower intellectual cost for companies and individuals using languages such as GoLang and Java.</p><h3 id=differentiation-of-core-competence>Differentiation of core competence</h3><ul><li>MOSN supports a multi-protocol framework, and users can easily access private protocols with a unified routing framework.</li><li>Multi-process plug-in mechanism, which can easily extend the plug-ins of independent MOSN processes through the plug-in framework, and do some other management, bypass and other functional module extensions.</li><li>Transport layer national secret algorithm support with Chinese encryption compliance, etc.</li></ul><h3 id=what-are-the-drawbacks-of-mosn>What are the drawbacks of MOSN</h3><ul><li>Because MOSN is written in GoLang, it doesn’t have as good performance as Istio default proxy, but the performance is acceptable and usable in the service mesh scenario.</li><li>Compared with Istio default proxy, some features are not fully supported, such as WASM, HTTP3, Lua, etc. However, these are all in the <a href="https://docs.google.com/document/d/12lgyCW-GmlErr_ihvAO7tMmRe87i70bv2xqe4h2LUz4/edit?usp=sharing">roadmap</a> of MOSN, and the goal is to be fully compatible with Istio.</li></ul><h2 id=mosn-with-istio>MOSN with Istio</h2><p>The following describes how to set up MOSN as the data plane for Istio.</p><h2 id=setup-istio>Setup Istio</h2><p>You can download a zip file for your operating system from the <a href=https://github.com/istio/istio/releases/tag/1.5.2>Istio release</a> page. This file contains: the installation file, examples and the <code>istioctl</code> command line tool.
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To download Istio (this example uses Istio 1.5.2) uses the following command.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ export ISTIO_VERSION=1.5.2
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$ curl -L https://istio.io/downloadIstio | sh -
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</code></pre><p>The downloaded Istio package is named <code>istio-1.5.2</code> and contains:
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- <code>install/kubernetes</code>: Contains YAML installation files related to Kubernetes.
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- <code>examples/</code>: Contains example applications.
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- <code>bin/</code>: Contains the istioctl client files.</p><p>Switch to the folder where Istio is located.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ cd istio-$ISTIO_VERSION/
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</code></pre><p>Add the <code>istioctl</code> client path to <code>$PATH</code> with the following command.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ export PATH=$PATH:$(pwd)/bin
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</code></pre><h2 id=setting-mosn-as-the-data-plane>Setting MOSN as the Data Plane</h2><p>It is possible to flexibly customize the Istio control plane and data plane configuration parameters using the <code>istioctl</code> command line tool. MOSN can be specified as the data plane for Istio using the following command.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ istioctl manifest apply --set .values.global.proxy.image="mosnio/proxyv2:1.5.2-mosn" --set meshConfig.defaultConfig.binaryPath="/usr/local/bin/mosn"
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</code></pre><p>Check that Istio-related pods and services are deployed successfully.</p><pre><code class=language-bash data-expandlinks=true data-repo=istio>$ kubectl get svc -n istio-system
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</code></pre><p>If the service <code>STATUS</code> is Running, then Istio has been successfully installed using MOSN and you can now deploy the Bookinfo sample.</p><h2 id=bookinfo-examples>Bookinfo Examples</h2><p>You can run the Bookinfo sample by following the <a href=https://katacoda.com/mosn/courses/istio/mosn-with-istio>MOSN with Istio tutorial</a> where you can find instructions for using MOSN and Istio. You can install MOSN and get to the same point you would have using the default Istio instructions with Envoy.</p><h2 id=moving-forward>Moving forward</h2><p>Next, MOSN will not only be compatible with the features of the latest version of Istio, but also evolve in the following aspects.</p><ul><li><em>As a microservices runtime</em>, MOSN oriented programming makes services lighter, smaller and faster.</li><li><em>Programmable</em>, support WASM.</li><li><em>More scenario support</em>, Cache Mesh/Message Mesh/Block-chain Mesh etc.</li></ul><p>MOSN is an open source project that anyone in the community can use, improve, and enjoy. We’d love you to join us! <a href=https://github.com/mosn/community>Here</a> are a few ways to find out what’s happening and get involved.</p><h2 id=learn-more>Learn More</h2><ul><li><a href=https://mosn.io/en>MOSN website</a></li><li><a href=https://mosn.io/en/docs/community/>MOSN community</a></li><li><a href=https://katacoda.com/mosn>MOSN tutorials</a></li></ul><nav id=see-also><h2>See also</h2><div class=see-also><div class=entry><p class=link><a data-skipendnotes=true href=/v1.9/docs/setup/additional-setup/cni/>Install Istio with the Istio CNI plugin</a></p><p class=desc>Install and use Istio with the Istio CNI plugin, allowing operators to deploy services with lower privilege.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.9/blog/2021/discovery-selectors/>Use discovery selectors to configure namespaces for your Istio service mesh</a></p><p class=desc>Learn how to use discovery selectors and how they intersect with Sidecar resources.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.9/blog/2020/dns-proxy/>Expanding into New Frontiers - Smart DNS Proxying in Istio</a></p><p class=desc>Workload Local DNS resolution to simplify VM integration, multicluster, and more.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.9/blog/2020/proxy-cert/>Provision a certificate and key for an application without sidecars</a></p><p class=desc>A mechanism to acquire and share an application certificate and key through mounted files.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.9/docs/ops/deployment/requirements/>Application Requirements</a></p><p class=desc>Requirements of applications deployed in an Istio-enabled cluster.</p></div><div class=entry><p class=link><a data-skipendnotes=true href=/v1.9/docs/ops/diagnostic-tools/proxy-cmd/>Debugging Envoy and Istiod</a></p><p class=desc>Describes tools and techniques to diagnose Envoy configuration issues related to traffic management.</p></div></div></nav></article><nav class=pagenav><div class=left><a title="The Istio Steering Committee is now in part proportionally allocated to companies based on contribution, and in part elected by community members." href=/v1.9/blog/2020/steering-changes/><svg class="icon left-arrow"><use xlink:href="/v1.9/img/icons.svg#left-arrow"/></svg>Introducing the new Istio steering committee</a></div><div class=right><a title="An update on trademarks and project governance." href=/v1.9/blog/2020/open-usage/>Open and neutral: transferring our trademarks to the Open Usage Commons<svg class="icon right-arrow"><use xlink:href="/v1.9/img/icons.svg#right-arrow"/></svg></a></div></nav><div id=feedback><div id=feedback-initial>Was this information useful?<br><button class="btn feedback" onclick="sendFeedback('en',1)">Yes</button>
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