Відео

Sorry if there was any confusion on this older video - at the time I published it I didn't know Kamal would change a lot in a short time! I have a video on this channel that covers how to upgrade to Kamal 2.0, which mentions that this command is no longer available. It would be great to make an updated version of this video, so I'll do my best to make that happen. Thanks for the suggestion!

Thank you, I'm glad it helped!

Thank you for watching and for your comment 🙏

I'm not sure why you're losing data from Sidekiq after deployments. If you have a Redis accessory with a data volume set up, Kamal deploys shouldn't clear that information. I'd start by making sure that you have a Redis accessory set up and that it's working correctly on the server where it's running. If you want more help, feel free to reach out to me (my contact info is on my home page - check my channel for more details) and I'll try to help out!

I have another video in this channel that shows how to deploy a Rails 7 app called "Rails Deployments Made Easy with Terraform and Kamal". Hopefully that one has enough information you're looking for!

Thank you!

Thanks for the suggestion - my next video will have minimal background music!

Thank you so much for your comment, hope it was helpful!

Thanks for the comment, I hope this video helped!

You can likely automate this whole process, from provisioning servers with Terraform to running that initial kamal setup command. Depending on how complex your setup is, you should be able to handle this with just about any CI/CD solution out there. I think Kamal isn't really built for this type of scenario, though, so I can see it getting messy quickly, especially if you need to do a lot of templating/modifiying the deploy.yml file for Kamal. If you're scaling up your app through multiple services, you're probably better off creating a golden image of your initial Kamal setup that you can use when provisioning new servers so you can bypass that step, and can simply focus on updating the Docker container for your app

I'm glad the video helped you find the issue!

Thank you so much for this comment, I appreciate it - stay tuned for more videos soon!

I haven't used Kamal with Docker in rootless mode, so I'm not sure how to get it working that way or even if it's possible. A quick search online shows that it should be possible, but haven't seen anyone say how. I'm guessing the main issue will be around binding privileged ports (ports under 1024) for Traefik. I'm curious to see if it's a possibility, so I'll tinker around with it to see if I can find a solution.

Thank you so much, I hope it helped!

Thanks for the kind words! I'm glad you found some value out of this video. For doing redirections like you mentioned from www to non-www, you'll need to create middleware (which you can do through labels) that uses regex to capture the user going to the www domain and redirects them to the non-www domain. Then you can add the middleware to the Traefik router. Here's an example configuration file showing the labels under the `servers` section: gist.github.com/dennmart/91981691f16def7e99b5068be3a0660b As for setting up multiple domains to use SSL, you'll need a wildcard certificate from Let's Encrypt. However, you can't use the HTTP challenge to generate the certificate (as shown in this video). You'll need to set up a DNS challenge instead. Traefik does have support for this as well: doc.traefik.io/traefik/https/acme/#dnschallenge. I've never done this myself, but I'll explore it and maybe do a future video about it.

@@DevTesterBlog yes i found some examples for the dnschallenge but from my understanding i need this for wildcard certificates. What if i want just different domains i mean complete different domains like domain1 and domain2 can i use there still the web challenge? You should make a video about middleware it took me quite a while to find out how i enable gzip in traefik but got it working in the end.

@@hansdampf10 You can create different routers for the web app in Kamal that point to different domains (using the `traefik.http.routers.<router-name>` labels as I showed in the video), and your app should generate the SSL certificates for each domain using the web challenge. I did a quick test and it worked great. Let me know if you need help setting that up. Also, thanks for the video suggestion - look for a future video talking about Traefik middleware!

Thanks for the suggestion, I'll work on this! I have a video showing how to set up SSL using load balancers, but it would also be nice to have a video showing how to use it on a single server since not everyone needs a load balancer for small apps.

I'm happy to hear that!

Glad you enjoyed this one, hope you found it helpful!

Those are good suggestions. I'm not much of a Python developer, but I do have plans to make a video covering monitoring/observability (likely for a Ruby on Rails app), hopefully it will still be helpful. I also have some more testing topics to cover so keep an eye out for those in the near future. Thanks for the kind words!

Thank you so much, I'm glad you found it valuable!