Health check passed in 91.5s%, printf "GET /healthz HTTP/1.1\r\nHost: localhost\r\n\r\n" |openssl s_client -connect idp.127.0.0.1.nip.io:8800 -CAfile traefik/certs/rootca.pem -quiet, And here are the logs from that app. This article uses Helm 3 to install the NGINX ingress controller on a supported version of Kubernetes.Make sure you're using the latest release of Helm and have access to the ingress-nginx and jetstack Helm . I got this partly to work, with the following findings: Due to the restriction of Chrome and other tools that HTTP/3 needs to run on port 443, it seems that setup 2 is not suitable for production. Before you begin. I need you to confirm if are you able to reproduce the results as detailed in the bug report. DNS challenge needs environment variables to be executed. Would you please share a snippet of code that contains only one service that is causing the issue? This would mean that HTTP/1 and HTTP/2 connections would pass through the host system traefik, while HTTP/3 connections would go directly to the VM. In such cases, Traefik Proxy must not terminate the TLS connection but forward the request as is to these services. I was able to run all your apps correctly by adding a few minor configuration changes. General. Terminating TLS at the point of Ingress relieves the backend service pods from the costly task of decrypting traffic and the burden of certificate management. If you are using Traefik for commercial applications, If the optional namespace attribute is not set, the configuration will be applied with the namespace of the current resource. This is known as TLS-passthrough. Long story short, you can start Traefik Proxy with no other configuration than your Lets Encrypt account, and Traefik Proxy automatically negotiates (get/renew/configure) certificates for you. Our docker-compose file from above becomes; Save the configuration above as traefik-update.yaml and apply it to the cluster. Considering the above takeaway the right entry points should be configured to reach the app depending on what protocol the app is using. Traefik will grab a certificate from Lets Encrypt for the hostname/domain it is serving the docker service under, communications between the outside world and Traefik will be encrypted. @jbdoumenjou tls.handshake.extensions_server_name, Disabling http2 when starting the browser results in correct routing for both http router & (tls-passthrough) tcp router using the same entrypoint. when the definition of the middleware comes from another provider. @jawabuu That's unfortunate. Thank you. This option simplifies the configuration but : That's why, it's better to use the onHostRule option if possible. All-in-one ingress, API management, and service mesh, Tweaks the HTTP requests before they are sent to your service, Abstraction for HTTP loadbalancing/mirroring, Tweaks the TCP requests before they are sent to your service, Allows to configure some parameters of the TLS connection, Allows to configure the default TLS store, Allows to configure the transport between Traefik and the backends, Defines the weight to apply to the server load balancing. Let me run some tests with Firefox and get back to you. referencing services in the IngressRoute objects, or recursively in others TraefikService objects. Open the application in your browser using a URL like https://whoami.20.115.56.189.nip.io (modifying the IP to reflect your public IP). Whitepaper: Making the Most of Kubernetes with Cloud Native Networking. It is important to note that the Server Name Indication is an extension of the TLS protocol. Most of the solutions I have seen, and they make sense, are to disable https on the container, but I can't do that because I'm trying to replicate as close to production as posible. Powered by Discourse, best viewed with JavaScript enabled, HTTP/3 is running on the host system. The polished configuration options ensure that configuring Traefik is always achieved the same way whether expressed with TOML, YAML, labels, or keys, and the revamped documentation includes examples for every syntax. Sometimes your services handle TLS by themselves. HTTPS is enabled by using the webscure entrypoint. It's possible to use others key-value store providers as described here. traefik . with curl: assuming 10.42.0.6 is the IP address of one of the replicas (a pod then) of the whoami1 service. I was planning to use TLS passthrough in Traefik with TCP router to pass encrypted traffic to backend without decrypting it. In the section above, Traefik Proxy handles TLS, But there are scenarios where your application handles it instead. consider the Enterprise Edition. Hence, only TLS routers will be able to specify a domain name with that rule. How do I pass the raw TCP connection from Traefik to this particular container using labels on the container and CLI options for Traefik? In the above example that uses the file provider, I asked Traefik Proxy to generate certificates for my.domain using the dnsChallenge with DigitalOcean and to generate certificates for other.domain using the tlsChallenge. Traefik currently only uses the TLS Store named "default". Thanks for contributing an answer to Stack Overflow! As the field name can reference different types of objects, use the field kind to avoid any ambiguity. The example above shows that TLS is terminated at the point of Ingress. What's wrong with this docker-compose.yml file to start traefix, wordpress and mariadb containers? https://idp.${DOMAIN}/healthz is reachable via browser. If you need an ingress controller or example applications, see Create an ingress controller.. Learn more in this 15-minute technical walkthrough. I think that the root cause of the issue is websecure entrypoint that has been used for TCP service. It provides the openssl command, which you can use to create a self-signed certificate. Does this support the proxy protocol? By default, the referenced ServersTransport CRD must be defined in the same Kubernetes service namespace. services: proxy: container_name: proxy image . Additionally, when you want to reference a MiddlewareTCP from the CRD Provider, Explore key traffic management strategies for success with microservices in K8s environments. If not, its time to read Traefik 2 & Docker 101. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Well occasionally send you account related emails. The browser displays warnings due to a self-signed certificate. When specifying the default option explicitly, make sure not to specify provider namespace as the default option does not have one. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Kindly share your result when accessing https://idp.${DOMAIN}/healthz Middleware is the CRD implementation of a Traefik middleware. Because my server has only one IP address, the host system is running traefik and using TLS passthrough to pass the HTTPS traffic to the VMs depending on the SNI hostname. That's why I highly recommend moving our conversation to the Traefik Labs Community Forum. curl https://dash.127.0.0.1.nip.io/api/version, curl -s https://dash.127.0.0.1.nip.io/api/http/routers|jq, curl -s https://dash.127.0.0.1.nip.io/api/tcp/routers|jq, curl -s https://dash.127.0.0.1.nip.io/api/udp/routers|jq, printf "WHO" |openssl s_client -connect whotcp.127.0.0.1.nip.io:8800 -CAfile traefik/certs/rootca.pem -quiet, printf "WHO" | nc -v -u whoudp.127.0.0.1.nip.io 9900. The certificatesresolvers specify details about the Let's Encrypt account, Let's Encrypt challenge, Let's Encrypt servers, and the certificate storage. A collection of contributions around Traefik can be found at https://awesome.traefik.io. Thanks @jakubhajek envoy needs discovery through KV stores / APIs (sorry, I don't know it very well). OpenSSL is installed on Linux and Mac systems and is available for Windows. For the purpose of this article, Ill be using my pet demo docker-compose file. Register the IngressRoute kind in the Kubernetes cluster before creating IngressRoute objects. We're not using mixed TCP and HTTP routers like you are but I wonder if we're not sharing the same underlying issue. @ReillyTevera Thanks anyway. Traefik generates these certificates when it starts. If TLS passthrough and TLS termination cannot be implemented in the same entrypoint, that is fine and should be documented. And the answer is, either from a collection of certificates you own and have configured or from a fully automatic mechanism that gets them for you. In the above example, I configured Traefik Proxy to generate a wildcard certificate for *.my.domain. Does ZnSO4 + H2 at high pressure reverses to Zn + H2SO4? The passthrough configuration needs a TCP route . Thank you @jakubhajek Thanks a lot for spending time and reporting the issue. I'm running into the exact same problem now. In the traefik configuration of the VM, I enable HTTP3 and set http3.advertisedPort to the forwarded port (this will cause traefik to listen on UDP port 443 for HTTP/3 traffic, but advertise the configured port using the Alt-Svc HTTP header instead). As you can see, I defined a certificate resolver named le of type acme. UDP service is connectionless and I personall use netcat to test that kind of dervice. To configure this passthrough, you need to configure a TCP router, even if your service handles HTTPS. Surly Straggler vs. other types of steel frames. Your tests match mine exactly. Does this work without the host system having the TLS keys? When I temporarily enabled HTTP/3 on port 443, it worked. The below configuration defines a TLSOption resource with specific TLS and applies it to the whoami IngressRoute. Please see the results below. the challenge for certificate negotiation, Advanced Load Balancing with Traefik Proxy. for my use case I need to use traefik on a public IP as TCP proxy and forward the TLS traffic to some secure applications based on the SNI and they do the certificate generation, TLS termination not traefik. The challenge that Ill explore today is that you have an HTTP service exposed through Traefik Proxy and you want Traefik Proxy to deal with the HTTPS burden (TLS termination), leaving your pristine service unspoiled by mundane technical details. TraefikService is the CRD implementation of a "Traefik Service". If I access traefik dashboard i.e. We need to set up routers and services. if Dokku app already has its own https then my Treafik should just pass it through. I'm not sure what I was messing up before and couldn't get working, but that does the trick. I was also missing the routers that connect the Traefik entrypoints to the TCP services. (in the reference to the middleware) with the provider namespace, The TLS configuration could be done at the entrypoint level to make sure all routers tied to this entrypoint are using HTTPS by default. and other advanced capabilities. After going through your comments again, is it allowed/supported by traefik to have a TLS passthrough service use port 443? Setting the scheme explicitly (http/https/h2c), Configuring the name of the kubernetes service port to start with https (https), Setting the kubernetes service port to use port 443 (https), on both sides, you'll be warned if the ports don't match, and the. How to get a Docker container's IP address from the host, Docker: Copying files from Docker container to host. Learn how Rocket.Chat offers dependable services and fast response times to their large customer base using Traefik. Hello, Currently when I request https url I get this: curl https://nextjs-app.dokku.arm1.localhost3002.live curl: (35) error:0A000126:SSL routines::unexpected eof while reading . I couldn't see anything in the Traefik documentation on putting the entrypoint itself into TCP mode instead of HTTP mode. To enforce mTLS in Traefik Proxy, the first thing you do is declare a TLS Option (in this example, require-mtls) forcing verification and pointing to the root CA of your choice. When I enable debug logging on the Traefik side I see no log events until that timeout seems to expire and the expected debug events all show up at once. I have valid let's encrypt certificates (*.example.com) and I've configured traefik to be executed via docker-compose and have all the services executed from another docker-compose file. I've observed this as once the issue is replicated in one browser tab I can go to other browser tabs (under the same instance of Chrome) and try to make requests to the same domain and they will all sit there and spin. Does traefik support passthrough for HTTP/3 traffic at all? I assume that with TLS passthrough Traefik should not decrypt anything.. Only when I change Traefik target group to TCP - things are working, but communication between AWS NLB and Traefik is not encrypted. OnDemand option (with HTTP challenge) This configuration allows generating a Let's Encrypt certificate (thanks to HTTP-01 challenge) during the first HTTPS request on a new domain. Connect and share knowledge within a single location that is structured and easy to search. @jawabuu You can try quay.io/procentive/test-traefik:v2.4.6 to see if it works for you. Say you already own a certificate for a domain or a collection of certificates for different domains and that you are then the proud holder of files to claim your ownership of the said domain. Controls the maximum idle (keep-alive) connections to keep per-host. Here, lets define a certificate resolver that works with your Lets Encrypt account. @jspdown @ldez Using Traefik for SSL passthrough (using TCP) on Kubernetes Cluster. First of all, a very useful finding is that curl, when run with the --http3 option, does not read the Alt-Svc header, but makes a HTTP/3 UDP request straight against the port specified in the URL (443 by default). Hey @ReillyTevera I observed this in Chrome and Microsoft Edge. test/app/docker-compose.yml, Note: The tls passthrough service must use websecure entrypoint to reproduce. Find centralized, trusted content and collaborate around the technologies you use most. So, no certificate management yet! Today, based on your detailed tutorial I fully reproduced your environment using your apps with a few configuration changes in config files. When you specify the port as I mentioned the host is accessible using a browser and the curl. That would be easier to replicate and confirm where exactly is the root cause of the issue. URI used to match against SAN URIs during the server's certificate verification. Making statements based on opinion; back them up with references or personal experience. Register the Middleware kind in the Kubernetes cluster before creating Middleware objects or referencing middlewares in the IngressRoute objects. The Kubernetes Ingress Controller, The Custom Resource Way. Deploy traefik and a couple of services, some with http routers and others with tcp routers & tls passthrough using a different subdomain per service. As a consequence, with respect to TLS stores, the only change that makes sense (and only if needed) is to configure the default TLSStore. Apply this configuration to create the Middleware and update the IngressRoute, and then generate a new report from SSLLabs. For each of my VMs, I forward one of these UDP ports (IPv4 and IPv6) of the host system to port 443 of the VM. Traefik backends creation needs a port to be set, however Kubernetes ExternalName Service could be defined without any port. A centralized routing solution for your Kubernetes deployment, Powerful traffic management for your Docker Swarm deployment, Act as a single entry point for microservices deployments, Create a Secured Gateway to Your Applications with Traefik Hub. As a result, Traefik Proxy goes through your certificate list to find a suitable match for the domain at hand if not, it uses a default certificate. I'm just realizing that I'm not putting across my point very well I should probably have worded the issue better. The same applies if I access a subdomain served by the tcp router first. You can generate the self-signed certificate pair in a non-interactive manner using the following command: Before we can update the IngressRoute to use the certificates, the certificate and key pair must be uploaded as a Kubernetes Secret with the following two attributes: Create the Secret, using the following command: Update the IngressRoute and reference the Secret in the tls.secretName attribute. It's probably something else then. By clicking Sign up for GitHub, you agree to our terms of service and We need to add a specific router to match and allow the HTTP challenge from Lets Encrypt through to the VM otherwise Traefik will intercept these requests. If you use TLS (even with a passthrough) in your configuration router, you need to use TLS. What did you do? To have Traefik Proxy make a claim on your behalf, youll have to give it access to the certificate files. TLSStore is the CRD implementation of a Traefik "TLS Store". Deploy traefik and a couple of services, some with http routers and others with tcp routers & tls passthrough using a different subdomain per service. @jakubhajek Is there an avenue available where we can have a live chat? privacy statement. Yes, its that simple! I just tried with v2.4 and Firefox does not exhibit this error. dex-app.txt. I have also tried out setup 2. Additionally, when the definition of the TraefikService is from another provider, Is it possible to create a concave light? Routing Configuration. More information about available middlewares in the dedicated middlewares section. My plan is to use docker for all my future services to make the most of my limited hardware but I still have existing services that are Virtual Machines (also known as a VM or VMs). All WHOAMI applications from Traefik Labs are designed to respond to the message WHO. defines the client authentication type to apply. Here is my docker-compose.yml for the app container. This is the recommended configurationwith multiple routers. (Factorization), Recovering from a blunder I made while emailing a professor. My web and Matrix federation connections work fine as they're all HTTP. As shown above, the application relies on Traefik Proxy-generated self-signed certificates the output specifies CN=TRAEFIK DEFAULT CERT. To demonstrate this scenario in Traefik, let's generate a self-signed certificate and apply it to the cluster. Is it correct to use "the" before "materials used in making buildings are"? Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Do you mind testing the files above and seeing if you can reproduce? The CA secret must contain a base64 encoded certificate under either a tls.ca or a ca.crt key. 'default' TLS Option. Just to clarify idp is a http service that uses ssl-passthrough. I used the list of ports on Wikipedia to decide on a port range to use. That's why, it's better to use the onHostRule . Connect and share knowledge within a single location that is structured and easy to search. I was also missing the routers that connect the Traefik entrypoints to the TCP services. The certificate is used for all TLS interactions where there is no matching certificate. If there are missing use cases or still unanswered questions, let me know in the comments or on our community forum! @jawabuu Random question, does Firefox exhibit this issue to you as well? In this context, specifying a namespace when referring to the resource does not make any sense, and will be ignored. #7776 What Is the Difference Between 'Man' And 'Son of Man' in Num 23:19? Thanks for your suggestion. Such a barrier can be encountered when dealing with HTTPS and its certificates. Traefik Enterprise 2.4 brings new features to ease multi-cluster platform management, integration with Traefik Pilot, and more. When you have certificates that come from a provider other than Let's Encrypt (either self-signed, from an internal CA, or from another commercial CA), you can apply these certificates manually and instruct Traefik to use them. By continuing to browse the site you are agreeing to our use of cookies. support tcp (but there are issues for that on github). I will do that shortly. Among other things, Traefik Proxy provides TLS termination, so your applications remain free from the challenges of handling SSL. Is the proxy protocol supported in this case? Then, I provided an email (your Lets Encrypt account), the storage file (for certificates it retrieves), and the challenge for certificate negotiation (here tlschallenge, just because its the most concise configuration option for the sake of the example). Im using a configuration file to declare our certificates. Is there a proper earth ground point in this switch box? But if needed, you can customize the default certificate like so: Even though the configuration is straightforward, it is your responsibility, as the administrator, to configure/renew your certificates when they expire. Proxy protocol is enabled to make sure that the VMs receive the right . Only observed when using Browsers and HTTP/2. I was not able to reproduce the reported behavior. By adding the tls option to the route, youve made the route HTTPS. See the Traefik Proxy documentation to learn more. Might it be that AWS NLB doesn't send SNI back to targets after TLS termination? If zero. As Kubernetes also has its own notion of namespace, one should not confuse the kubernetes namespace of a resource By default, type is TRAEFIK, tls is Non-SSL, and domainType is soa. Deploy the updated configuration and then revisit SSLLabs and regenerate the report. Thank you. Please note that in my configuration the IDP service has TCP entrypoint configured. Register the MiddlewareTCP kind in the Kubernetes cluster before creating MiddlewareTCP objects or referencing TCP middlewares in the IngressRouteTCP objects.