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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><span role=treeitem class=current title="How to enable proxy protocol on AWS NLB and Istio ingress gateway (December 11, 2020)">Proxy protocol on AWS NLB and Istio ingress gateway</span></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><a role=treeitem title="An alternative sidecar proxy for Istio (July 28, 2020)" href=/v1.9/blog/2020/mosn-proxy/>Using MOSN with Istio: an alternative data plane</a></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>Proxy protocol on AWS NLB and Istio ingress gateway</li></ol></nav><article aria-labelledby=title><div class=title-area><div style=width:100%><h1 id=title>Proxy protocol on AWS NLB and Istio ingress gateway</h1><p class=byline><span>By</span>
|
|
<span class=attribution>Xinhui Li (Salesforce) </span><span>| </span><span><svg class="icon calendar"><use xlink:href="/v1.9/img/icons.svg#calendar"/></svg><span> </span>December 11, 2020</span><span> | </span><span title="1387 words"><svg class="icon clock"><use xlink:href="/v1.9/img/icons.svg#clock"/></svg><span> </span>7 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="Separate setups for 80 and 443"><a href=#separate-setups-for-80-and-443>Separate setups for 80 and 443</a><ol><li role=none aria-label="Step 1: Install Istio with AWS NLB"><a href=#step-1-install-istio-with-aws-nlb>Step 1: Install Istio with AWS NLB</a><li role=none aria-label="Step 2: Create proxy-protocol Envoy Filter"><a href=#step-2-create-proxy-protocol-envoy-filter>Step 2: Create proxy-protocol Envoy Filter</a><li role=none aria-label="Step 3: Enable X-Forwarded-For header"><a href=#step-3-enable-x-forwarded-for-header>Step 3: Enable <code>X-Forwarded-For</code> header</a><li role=none aria-label="Step 4: Deploy ingress gateway for httpbin on port 80 and 443"><a href=#step-4-deploy-ingress-gateway-for-httpbin-on-port-80-and-443>Step 4: Deploy ingress gateway for httpbin on port 80 and 443</a><li role=none aria-label="Step 5: Check header output of httpbin"><a href=#step-5-check-header-output-of-httpbin>Step 5: Check header output of httpbin</a></ol></li><li role=none aria-label=Conclusion><a href=#conclusion>Conclusion</a><li role=none aria-label=References><a href=#references>References</a></ol><hr></div></nav><p>This blog presents my latest experience about how to configure and enable proxy protocol with stack of AWS NLB and Istio Ingress gateway. The <a href=https://www.haproxy.com/blog/haproxy/proxy-protocol/>Proxy Protocol</a> was designed to chain proxies and reverse-proxies without losing the client information. The proxy protocol prevents the need for infrastructure changes or <code>NATing</code> firewalls, and offers the benefits of being protocol agnostic and providing good scalability. Additionally, we also enable the <code>X-Forwarded-For</code> HTTP header in the deployment to make the client IP address easy to read. In this blog, traffic management of Istio ingress is shown with an httpbin service on ports 80 and 443 to demonstrate the use of proxy protocol. Note that both v1 and v2 of the proxy protocol work for the purpose of this example, but because the AWS NLB currently only supports v2, proxy protocol v2 is used in the rest of this blog by default. The following image shows the use of proxy protocol v2 with an AWS NLB.</p><div><aside class="callout tip"><div class=type><svg class="large-icon"><use xlink:href="/v1.9/img/icons.svg#callout-tip"/></svg></div><div class=content><p>A receiver may be configured to support both version 1 and version 2 of the
|
|
protocol. Identifying the protocol version is easy:</p><ul><li><p>If the incoming byte count is 16 or more and the first 13 bytes match the protocol signature block <code>\x0D\x0A\x0D\x0A\x00\x0D\x0A\x51\x55\x49\x54\x0A\x02</code>, the protocol is version 2.</p></li><li><p>Otherwise, if the incoming byte count is 8 or more, and the 5 first characters match the <code>US-ASCII</code> representation of “PROXY”(<code>\x50\x52\x4F\x58\x59</code>), then the protocol must be parsed as version 1.</p></li><li><p>Otherwise the protocol is not covered by this specification and the connection must be dropped.</p></li></ul></div></aside></div><figure style=width:100%><div class=wrapper-with-intrinsic-ratio style=padding-bottom:80.81149619611158%><a data-skipendnotes=true href=/v1.9/blog/2020/show-source-ip/aws-proxy-protocol.png title="AWS NLB portal to enable proxy protocol"><img class=element-to-stretch src=/v1.9/blog/2020/show-source-ip/aws-proxy-protocol.png alt="AWS NLB portal to enable proxy protocol"></a></div><figcaption>AWS NLB portal to enable proxy protocol</figcaption></figure><h2 id=separate-setups-for-80-and-443>Separate setups for 80 and 443</h2><p>Before going through the following steps, an AWS environment that is configured with the proper VPC, IAM, and Kubernetes setup is assumed.</p><h3 id=step-1-install-istio-with-aws-nlb>Step 1: Install Istio with AWS NLB</h3><p>The blog <a href=/v1.9/blog/2018/aws-nlb/>Configuring Istio Ingress with AWS NLB</a> provides detailed steps to set up AWS IAM roles and enable the usage of AWS NLB by Helm. You can also use other automation tools, such as Terraform, to achieve the same goal. In the following example, more complete configurations are shown in order to enable proxy protocol and <code>X-Forwarded-For</code> at the same time.</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: v1
|
|
kind: Service
|
|
metadata:
|
|
annotations:
|
|
service.beta.kubernetes.io/aws-load-balancer-proxy-protocol: "*"
|
|
service.beta.kubernetes.io/aws-load-balancer-type: "nlb"
|
|
proxy.istio.io/config: '{"gatewayTopology" : { "numTrustedProxies": 2 } }'
|
|
labels:
|
|
app: istio-ingressgateway
|
|
istio: ingressgateway
|
|
release: istio
|
|
name: istio-ingressgateway
|
|
</code></pre><h3 id=step-2-create-proxy-protocol-envoy-filter>Step 2: Create proxy-protocol Envoy Filter</h3><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: networking.istio.io/v1alpha3
|
|
kind: EnvoyFilter
|
|
metadata:
|
|
name: proxy-protocol
|
|
namespace: istio-system
|
|
spec:
|
|
workloadSelector:
|
|
labels:
|
|
istio: ingressgateway
|
|
configPatches:
|
|
- applyTo: LISTENER
|
|
patch:
|
|
operation: MERGE
|
|
value:
|
|
listener_filters:
|
|
- name: envoy.filters.listener.proxy_protocol
|
|
- name: envoy.filters.listener.tls_inspector
|
|
</code></pre><h3 id=step-3-enable-x-forwarded-for-header>Step 3: Enable <code>X-Forwarded-For</code> header</h3><p>This <a href=/v1.9/docs/ops/configuration/traffic-management/network-topologies/>blog</a> includes several samples of configuring Gateway Network Topology. In the following example, the configurations are tuned to enable <code>X-Forwarded-For</code> without any middle proxy.</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: networking.istio.io/v1alpha3
|
|
kind: EnvoyFilter
|
|
metadata:
|
|
name: ingressgateway-settings
|
|
namespace: istio-system
|
|
spec:
|
|
configPatches:
|
|
- applyTo: NETWORK_FILTER
|
|
match:
|
|
listener:
|
|
filterChain:
|
|
filter:
|
|
name: envoy.http_connection_manager
|
|
patch:
|
|
operation: MERGE
|
|
value:
|
|
name: envoy.http_connection_manager
|
|
typed_config:
|
|
"@type": type.googleapis.com/envoy.config.filter.network.http_connection_manager.v2.HttpConnectionManager
|
|
skip_xff_append: false
|
|
use_remote_address: true
|
|
xff_num_trusted_hops: 1
|
|
</code></pre><h3 id=step-4-deploy-ingress-gateway-for-httpbin-on-port-80-and-443>Step 4: Deploy ingress gateway for httpbin on port 80 and 443</h3><div><aside class="callout warning"><div class=type><svg class="large-icon"><use xlink:href="/v1.9/img/icons.svg#callout-warning"/></svg></div><div class=content>When following the <a href=/v1.9/docs/tasks/traffic-management/ingress/secure-ingress/>secure ingress setup</a>, macOS users must add an additional patch to generate certificates for TLS.</div></aside></div><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: networking.istio.io/v1alpha3
|
|
kind: Gateway
|
|
metadata:
|
|
name: httpbin-gateway
|
|
spec:
|
|
selector:
|
|
istio: ingressgateway # use Istio default gateway implementation
|
|
servers:
|
|
- port:
|
|
number: 80
|
|
name: http
|
|
protocol: HTTP
|
|
hosts:
|
|
- "a25fa0b4835b.elb.us-west-2.amazonaws.com"
|
|
---
|
|
apiVersion: networking.istio.io/v1alpha3
|
|
kind: VirtualService
|
|
metadata:
|
|
name: httpbin
|
|
spec:
|
|
hosts:
|
|
- "a25fa0b4835b.elb.us-west-2.amazonaws.com"
|
|
gateways:
|
|
- httpbin-gateway
|
|
http:
|
|
- match:
|
|
- uri:
|
|
prefix: /headers
|
|
route:
|
|
- destination:
|
|
port:
|
|
number: 8000
|
|
host: httpbin
|
|
</code></pre><pre><code class=language-yaml data-expandlinks=true data-repo=istio>apiVersion: networking.istio.io/v1alpha3
|
|
kind: Gateway
|
|
metadata:
|
|
name: mygateway2
|
|
spec:
|
|
selector:
|
|
istio: ingressgateway # use istio default ingress gateway
|
|
servers:
|
|
- port:
|
|
number: 443
|
|
name: https
|
|
protocol: HTTPS
|
|
tls:
|
|
mode: SIMPLE
|
|
credentialName: httpbin-credential # must be the same as secret
|
|
hosts:
|
|
- "a25fa0b4835b.elb.us-west-2.amazonaws.com"
|
|
---
|
|
apiVersion: networking.istio.io/v1alpha3
|
|
kind: VirtualService
|
|
metadata:
|
|
name: httpbin
|
|
spec:
|
|
hosts:
|
|
- "a25fa0b4835b.elb.us-west-2.amazonaws.com"
|
|
gateways:
|
|
- mygateway2
|
|
http:
|
|
- match:
|
|
- uri:
|
|
prefix: /headers
|
|
route:
|
|
- destination:
|
|
port:
|
|
number: 8000
|
|
host: httpbin
|
|
</code></pre><h3 id=step-5-check-header-output-of-httpbin>Step 5: Check header output of httpbin</h3><p>Check port 443 (80 will be similar) and compare the cases with and without proxy protocol.</p><pre><code class=language-yaml data-expandlinks=true data-repo=istio>//////with proxy_protocal enabled in the stack
|
|
* Trying YY.XXX.141.26...
|
|
* TCP_NODELAY set
|
|
* Connection failed
|
|
* connect to YY.XXX.141.26 port 443 failed: Operation timed out
|
|
* Trying YY.XXX.205.117...
|
|
* TCP_NODELAY set
|
|
* Connected to a25fa0b4835b.elb.us-west-2.amazonaws.com (XX.YYY.205.117) port 443 (#0)
|
|
* ALPN, offering h2
|
|
* ALPN, offering http/1.1
|
|
* successfully set certificate verify locations:
|
|
* CAfile: new_certificates/example.com.crt
|
|
CApath: none
|
|
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
|
|
* TLSv1.2 (IN), TLS handshake, Server hello (2):
|
|
* TLSv1.2 (IN), TLS handshake, Certificate (11):
|
|
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
|
|
* TLSv1.2 (IN), TLS handshake, Server finished (14):
|
|
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
|
|
* TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
|
|
* TLSv1.2 (OUT), TLS handshake, Finished (20):
|
|
* TLSv1.2 (IN), TLS change cipher, Change cipher spec (1):
|
|
* TLSv1.2 (IN), TLS handshake, Finished (20):
|
|
* SSL connection using TLSv1.2 / ECDHE-RSA-CHACHA20-POLY1305
|
|
* ALPN, server accepted to use h2
|
|
* Server certificate:
|
|
* subject: CN=a25fa0b4835b.elb.us-west-2.amazonaws.com; O=httpbin organization
|
|
* start date: Oct 29 20:39:12 2020 GMT
|
|
* expire date: Oct 29 20:39:12 2021 GMT
|
|
* common name: a25fa0b4835b.elb.us-west-2.amazonaws.com (matched)
|
|
* issuer: O=example Inc.; CN=example.com
|
|
* SSL certificate verify ok.
|
|
* Using HTTP2, server supports multi-use
|
|
* Connection state changed (HTTP/2 confirmed)
|
|
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
|
|
* Using Stream ID: 1 (easy handle 0x7fc6c8810800)
|
|
> GET /headers?show_env=1 HTTP/2
|
|
> Host: a25fa0b4835b.elb.us-west-2.amazonaws.com
|
|
> User-Agent: curl/7.64.1
|
|
> Accept: */*
|
|
>
|
|
* Connection state changed (MAX_CONCURRENT_STREAMS == 2147483647)!
|
|
< HTTP/2 200
|
|
< server: istio-envoy
|
|
< date: Thu, 29 Oct 2020 21:39:46 GMT
|
|
< content-type: application/json
|
|
< content-length: 629
|
|
< access-control-allow-origin: *
|
|
< access-control-allow-credentials: true
|
|
< x-envoy-upstream-service-time: 2
|
|
<
|
|
{
|
|
"headers": {
|
|
"Accept": "*/*",
|
|
"Content-Length": "0",
|
|
"Host": "a25fa0b4835b.elb.us-west-2.amazonaws.com",
|
|
"User-Agent": "curl/7.64.1",
|
|
"X-B3-Sampled": "0",
|
|
"X-B3-Spanid": "74f99a1c6fc29975",
|
|
"X-B3-Traceid": "85db86fe6aa322a074f99a1c6fc29975",
|
|
"X-Envoy-Attempt-Count": "1",
|
|
"X-Envoy-Decorator-Operation": "httpbin.default.svc.cluster.local:8000/headers*",
|
|
"X-Envoy-External-Address": "XX.110.54.41",
|
|
"X-Forwarded-For": "XX.110.54.41",
|
|
"X-Forwarded-Proto": "https",
|
|
"X-Request-Id": "5c3bc236-0c49-4401-b2fd-2dbfbce506fc"
|
|
}
|
|
}
|
|
* Connection #0 to host a25fa0b4835b.elb.us-west-2.amazonaws.com left intact
|
|
* Closing connection 0
|
|
</code></pre><pre><code class=language-yaml data-expandlinks=true data-repo=istio>//////////without proxy_protocal
|
|
* Trying YY.XXX.141.26...
|
|
* TCP_NODELAY set
|
|
* Connection failed
|
|
* connect to YY.XXX.141.26 port 443 failed: Operation timed out
|
|
* Trying YY.XXX.205.117...
|
|
* TCP_NODELAY set
|
|
* Connected to a25fa0b4835b.elb.us-west-2.amazonaws.com (YY.XXX.205.117) port 443 (#0)
|
|
* ALPN, offering h2
|
|
* ALPN, offering http/1.1
|
|
* successfully set certificate verify locations:
|
|
* CAfile: new_certificates/example.com.crt
|
|
CApath: none
|
|
* TLSv1.2 (OUT), TLS handshake, Client hello (1):
|
|
* TLSv1.2 (IN), TLS handshake, Server hello (2):
|
|
* TLSv1.2 (IN), TLS handshake, Certificate (11):
|
|
* TLSv1.2 (IN), TLS handshake, Server key exchange (12):
|
|
* TLSv1.2 (IN), TLS handshake, Server finished (14):
|
|
* TLSv1.2 (OUT), TLS handshake, Client key exchange (16):
|
|
* TLSv1.2 (OUT), TLS change cipher, Change cipher spec (1):
|
|
* TLSv1.2 (OUT), TLS handshake, Finished (20):
|
|
* TLSv1.2 (IN), TLS change cipher, Change cipher spec (1):
|
|
* TLSv1.2 (IN), TLS handshake, Finished (20):
|
|
* SSL connection using TLSv1.2 / ECDHE-RSA-CHACHA20-POLY1305
|
|
* ALPN, server accepted to use h2
|
|
* Server certificate:
|
|
* subject: CN=a25fa0b4835b.elb.us-west-2.amazonaws.com; O=httpbin organization
|
|
* start date: Oct 29 20:39:12 2020 GMT
|
|
* expire date: Oct 29 20:39:12 2021 GMT
|
|
* common name: a25fa0b4835b.elb.us-west-2.amazonaws.com (matched)
|
|
* issuer: O=example Inc.; CN=example.com
|
|
* SSL certificate verify ok.
|
|
* Using HTTP2, server supports multi-use
|
|
* Connection state changed (HTTP/2 confirmed)
|
|
* Copying HTTP/2 data in stream buffer to connection buffer after upgrade: len=0
|
|
* Using Stream ID: 1 (easy handle 0x7fbf8c808200)
|
|
> GET /headers?show_env=1 HTTP/2
|
|
> Host: a25fa0b4835b.elb.us-west-2.amazonaws.com
|
|
> User-Agent: curl/7.64.1
|
|
> Accept: */*
|
|
>
|
|
* Connection state changed (MAX_CONCURRENT_STREAMS == 2147483647)!
|
|
< HTTP/2 200
|
|
< server: istio-envoy
|
|
< date: Thu, 29 Oct 2020 20:44:01 GMT
|
|
< content-type: application/json
|
|
< content-length: 612
|
|
< access-control-allow-origin: *
|
|
< access-control-allow-credentials: true
|
|
< x-envoy-upstream-service-time: 1
|
|
<
|
|
{
|
|
"headers": {
|
|
"Accept": "*/*",
|
|
"Content-Length": "0",
|
|
"Host": "a25fa0b4835b.elb.us-west-2.amazonaws.com",
|
|
"User-Agent": "curl/7.64.1",
|
|
"X-B3-Sampled": "0",
|
|
"X-B3-Spanid": "69913a6e6e949334",
|
|
"X-B3-Traceid": "729d5da3618545da69913a6e6e949334",
|
|
"X-Envoy-Attempt-Count": "1",
|
|
"X-Envoy-Decorator-Operation": "httpbin.default.svc.cluster.local:8000/headers*",
|
|
"X-Envoy-Internal": "true",
|
|
"X-Forwarded-For": "172.16.5.30",
|
|
"X-Forwarded-Proto": "https",
|
|
"X-Request-Id": "299c7f8a-5f89-480a-82c9-028c76d45d84"
|
|
}
|
|
}
|
|
* Connection #0 to host a25fa0b4835b.elb.us-west-2.amazonaws.com left intact
|
|
* Closing connection 0
|
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</code></pre><h2 id=conclusion>Conclusion</h2><p>This blog presents the deployment of a stack that consists of an AWS NLB and Istio ingress gateway that are enabled with proxy-protocol. We hope it is useful to you if you are interested in protocol enabling in an anecdotal, experiential, and more informal way. However, note that the <code>X-Forwarded-For</code> header should be used only for the convenience of reading in test, as dealing with fake <code>X-Forwarded-For</code> attacks is not within the scope of this blog.</p><h2 id=references>References</h2><ul><li><p><a href=https://docs.nginx.com/nginx/admin-guide/load-balancer/using-proxy-protocol/>protocol settings</a></p></li><li><p><a href=https://www.haproxy.com/blog/haproxy/proxy-protocol/>protocol introduction</a></p></li></ul></article><nav class=pagenav><div class=left><a title="Deploy multiple Istio egress gateways independently to have fine-grained control of egress communication from the mesh." href=/v1.9/blog/2020/proxying-legacy-services-using-egress-gateways/><svg class="icon left-arrow"><use xlink:href="/v1.9/img/icons.svg#left-arrow"/></svg>Proxying legacy services using Istio egress gateways</a></div><div class=right><a title="The inaugural conference for Istio will take place at the end of February." href=/v1.9/blog/2020/istiocon-2021/>Join us for the first IstioCon in 2021!<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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<button class="btn feedback" onclick="sendFeedback('en',0)">No</button></div><div id=feedback-comment>Do you have any suggestions for improvement?<br><br><input id=feedback-textbox type=text placeholder="Help us improve..." data-lang=en></div><div id=feedback-thankyou>Thanks for your feedback!</div></div><div id=endnotes-container aria-hidden=true><h2>Links</h2><ol id=endnotes></ol></div></div><div class=toc-container><nav class=toc aria-label="Table of Contents"><div id=toc><ol><li role=none aria-label="Separate setups for 80 and 443"><a href=#separate-setups-for-80-and-443>Separate setups for 80 and 443</a><ol><li role=none aria-label="Step 1: Install Istio with AWS NLB"><a href=#step-1-install-istio-with-aws-nlb>Step 1: Install Istio with AWS NLB</a><li role=none aria-label="Step 2: Create proxy-protocol Envoy Filter"><a href=#step-2-create-proxy-protocol-envoy-filter>Step 2: Create proxy-protocol Envoy Filter</a><li role=none aria-label="Step 3: Enable X-Forwarded-For header"><a href=#step-3-enable-x-forwarded-for-header>Step 3: Enable <code>X-Forwarded-For</code> header</a><li role=none aria-label="Step 4: Deploy ingress gateway for httpbin on port 80 and 443"><a href=#step-4-deploy-ingress-gateway-for-httpbin-on-port-80-and-443>Step 4: Deploy ingress gateway for httpbin on port 80 and 443</a><li role=none aria-label="Step 5: Check header output of httpbin"><a href=#step-5-check-header-output-of-httpbin>Step 5: Check header output of httpbin</a></ol></li><li role=none aria-label=Conclusion><a href=#conclusion>Conclusion</a><li role=none aria-label=References><a href=#references>References</a></ol></div></nav></div></main><footer><div class=user-links><a class=channel title="Go download Istio 1.9.5 now" href=/v1.9/docs/setup/getting-started/#download aria-label="Download Istio"><span>download</span><svg class="icon download"><use xlink:href="/v1.9/img/icons.svg#download"/></svg>
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