traefik | The Cloud Native Application Proxy | Continuous Deployment library

 by   traefik Go Version: v2.10.1 License: MIT

kandi X-RAY | traefik Summary

kandi X-RAY | traefik Summary

traefik is a Go library typically used in Devops, Continuous Deployment, Docker applications. traefik has no bugs, it has a Permissive License and it has medium support. However traefik has 2 vulnerabilities. You can download it from GitHub.

Imagine that you have deployed a bunch of microservices with the help of an orchestrator (like Swarm or Kubernetes) or a service registry (like etcd or consul). Now you want users to access these microservices, and you need a reverse proxy. Traditional reverse-proxies require that you configure each route that will connect paths and subdomains to each microservice. In an environment where you add, remove, kill, upgrade, or scale your services many times a day, the task of keeping the routes up to date becomes tedious. Traefik listens to your service registry/orchestrator API and instantly generates the routes so your microservices are connected to the outside world -- without further intervention from your part.

            kandi-support Support

              traefik has a medium active ecosystem.
              It has 43428 star(s) with 4631 fork(s). There are 676 watchers for this library.
              There were 6 major release(s) in the last 12 months.
              There are 608 open issues and 4828 have been closed. On average issues are closed in 93 days. There are 19 open pull requests and 0 closed requests.
              It has a neutral sentiment in the developer community.
              The latest version of traefik is v2.10.1

            kandi-Quality Quality

              traefik has 0 bugs and 0 code smells.

            kandi-Security Security

              traefik has 2 vulnerability issues reported (0 critical, 2 high, 0 medium, 0 low).
              traefik code analysis shows 0 unresolved vulnerabilities.
              There are 0 security hotspots that need review.

            kandi-License License

              traefik is licensed under the MIT License. This license is Permissive.
              Permissive licenses have the least restrictions, and you can use them in most projects.

            kandi-Reuse Reuse

              traefik releases are available to install and integrate.
              Installation instructions, examples and code snippets are available.
              It has 102084 lines of code, 3145 functions and 597 files.
              It has medium code complexity. Code complexity directly impacts maintainability of the code.

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            traefik Key Features

            No Key Features are available at this moment for traefik.

            traefik Examples and Code Snippets

            No Code Snippets are available at this moment for traefik.

            Community Discussions


            Permission denied when attempting to edit docker container files
            Asked 2022-Apr-08 at 19:05

            I'm working on a Dockerized project which has an Adminer container. I need to increase the value of post_max_size found in /usr/local/etc/php/conf.d/0-upload_large_dumps.ini.

            My problem is any attempt to edit the file results in permission denied responses. Usually, this would be a prolem resolved by using sudo but I also get permission denied from that as well.

            The following is the output of the directory I'm trying to edit showing the target file is owned by root:



            Answered 2022-Apr-08 at 19:05

            There is nothing to change in your docker-compose.yaml.
            If you want to change it, you can just exec in the container as the root user.

            So I suppose that, right now, you are doing



            PHP - How do we can get Youtube Views and comments count along with videos list via Youtube APIs?
            Asked 2022-Apr-08 at 07:52

            I am getting list of videos from youtube API. I want to also get views and comment count in response from youtube apis.

            I am trying the following.



            Answered 2022-Apr-08 at 07:50
            I am getting vidoes title, description etc is it possible to get video's views & comments count in same api response?

            No it is not posible.

            Search.list method

            You are using the search.list method Which returns a list of search#resource



            2-Node Cluster, Master goes down, Worker fails
            Asked 2022-Mar-28 at 15:13

            We have a 2 node K3S cluster with one master and one worker node and would like "reasonable availability" in that, if one or the other nodes goes down the cluster still works i.e. ingress reaches the services and pods which we have replicated across both nodes. We have an external load balancer (F5) which does active health checks on each node and only sends traffic to up nodes.

            Unfortunately, if the master goes down the worker will not serve any traffic (ingress).

            This is strange because all the service pods (which ingress feeds) on the worker node are running.

            We suspect the reason is that key services such as the traefik ingress controller and coredns are only running on the master.

            Indeed when we simulated a master failure, restoring it from a backup, none of the pods on the worker could do any DNS resolution. Only a reboot of the worker solved this.

            We've tried to increase the number of replicas of the traefik and coredns deployment which helps a bit BUT:

            • This gets lost on the next reboot
            • The worker still functions when the master is down but every 2nd ingress request fails
              • It seems the worker still blindly (round-robin) sends traffic to a non-existant master

            We would appreciate some advice and explanation:

            • Should not key services such as traefik and coredns be DaemonSets by default?
            • How can we change the service description (e.g. replica count) in a persistent way that does not get lost
            • How can we get intelligent traffic routing with ingress to only "up" nodes
            • Would it make sense to make this a 2-master cluster?

            UPDATE: Ingress Description:



            Answered 2022-Mar-18 at 09:50

            Running single node or two node masters in k8s cluster is not recommended and it doesnt tolerate failure of master components. Consider running 3 masters in your kubernetes cluster.

            Following link would be helpful -->



            Hot reload on React with docker-compose failing on Windows
            Asked 2022-Mar-26 at 07:53

            I'm trying to get React to change content of the site when it's file is being saved.

            I'm using VS code which doesn't have safe write. I'm using docker-compose on Windows via Docker Desktop.




            Answered 2022-Mar-26 at 07:53

            Shortest way I found was to start from the other side, that is attach editor to container instead of updating container based on changes in system files. I followed the guide here:



            Traefik conf for server-side events
            Asked 2022-Mar-21 at 15:17

            I'm trying to set a server-side event correctly with Traefik to no avail. I have a Django server that has a URL that sends sse, I can proxy easily with nginx with this simple conf:



            Answered 2022-Mar-21 at 15:17

            It turns out that Django's view that responded with the sse was setting 2 identical headers and that makes Traefik bristle.

            Complete explanation on the issue.

            Once fixed the headers everything worked.



            Linkerd inbound port annotation leads to "Failed to bind inbound listener"
            Asked 2022-Mar-07 at 10:47

            We are using Linkerd 2.11.1 on Azure AKS Kubernetes. Amongst others there is a Deployment using using an Alpine Linux image containing Apache/mod_php/PHP8 serving an API. HTTPS is resolved by Traefik v2 with cert-manager, so that in coming traffic to the APIs is on port 80. The Linkerd proxy container is injected as a Sidecar.

            Recently I saw that the API containers return 504 errors during a short period of time when doing a Rolling deployment. In the Sidecars log, I found the following :



            Answered 2022-Mar-04 at 01:07
                    annotations = {
                      "" = "80"



            Unable to start FastAPI server with postgresql using docker compose
            Asked 2022-Mar-01 at 18:51

            I am creating a FastAPI server with simple CRUD functionalities with Postgresql as database. Everything works well in my local environment. However, when I tried to make it run in containers using docker-compose up, it failed. I was getting this error:



            Answered 2021-Sep-29 at 20:31

            First, the SQLALCHEMY_DATABASE_URI in should match the user, password and database name suplied in Your docker-compose.yaml. Ensure that You are running docker-compose up with correct environ. In Your case, the environ for docker-compose up should be:



            Minio install behind Traefik
            Asked 2022-Feb-26 at 17:31

            I had the previous version (from last yr) of minio running well behind traefik and on portainer with no issues. I attempted an upgrade 4 days ago to the new version and it's been downhill since then. I get the login page but it won't accept credentials; Error: {"code":500,"detailedMessage":"Post \"\": dial tcp :443: i/o timeout","message":"invalid Login"} I suspect it has something to do with the TLS certificate.

            Below is my compose file, I've generated the certs as required; any assistance is is welcomed:



            Answered 2021-Oct-08 at 06:11

            I was getting the same Invalid Login error: Post "http://minio.localhost/": dial tcp: lookup minio.localhost on no such host.

            The following docker-compose.yml works. The solution is NOT to use MINIO_DOMAIN or MINIO_SERVER_URL. See # comments at environment: variables.



            Traefik custom error middleware for HTTP status 502 doesn’t work
            Asked 2022-Feb-08 at 12:25

            I would like to serve custom error pages for common HTTP error codes. I was following this tutorial. For this purpose, I created the following docker-compose.yml file to test the functionality. It consists of:

            1. errorPageHandler which is a nginx server which is able to return static HTML pages (404.html and 502.html).

            2. whoami1 which routes the request to port 80 of traefik/whoami image

            3. whoami2 which routes the request to non-existent port 81 of traefik/whoami image which results in 502 - Bad Gateway



            Answered 2022-Feb-08 at 12:25

            The traefik routers (whoami1 and whoami2) needs to use the error middleware that you defined

   Traefik error middleware docs

            So add the following labels to their respective containers



            Unable to obtain ACME certificate for domains - trying to setup HTTPS in virtual localhost on docker
            Asked 2022-Jan-31 at 13:05

            I am trying to setup a certificate for a locally running react app on a virtual host This has to just work locally on docker setup. After going through some articles, I came up with this docker-compose.yml:



            Answered 2022-Jan-31 at 13:05

            You need to use TLS for your local setup. The host you need a certificate for is There is no way to obtain a certificate from Letsencrypt for this name, because you're not controlling the domain. One of the ways Letsencrypt creates a certificate is a challenge - you prove that you own the domain by creating a TXT DNS record. If you own a domain you can do that, but your case is different, because you only need this for local development.

            However, you can just use openssl to generate a self signed certificate for whichever domain name you want. This is a good reference on how to do this. You can use the domain name for the generated certificate. If you're successful, you'll end up with the certificate and it's private key. Note where you save those files, as you'll need them. Keep in mind that the certificate is self-signed, so your browser will give you a warning, unless you add this certificate to the trust store of your operating system.

            The next step in your case is to make Traefik use those self signed certificates when serving content from your application. I think this answer has a good example of that.

            After having this, you'll only need to edit your hosts file and redirect your localhost:8080 (the port on which your Traefik serves your application) to

            Also, Traefik is not the only solution for your case. You can also achieve the same using Nginx, for example. Choose which one satisfies your use case. My suggestion would be to use the one that's easiest to configure, because it's for local development. Here's the first result I got when searching for a nginx docker-compose self-signed certificate.

            Here's a quick example of what I'm describing above.
            First generate the certificate:


            Community Discussions, Code Snippets contain sources that include Stack Exchange Network


            No vulnerabilities reported

            Install traefik

            To get your hands on Traefik, you can use the 5-Minute Quickstart in our documentation (you will need Docker).
            Grab the latest binary from the releases page and run it with the sample configuration file:
            Or use the official tiny Docker image and run it with the sample configuration file:
            Or get the sources:


            Docker / Swarm modeKubernetesMarathonRancher (Metadata)File
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            gh repo clone traefik/traefik

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