xcaddy
caddy-docker-proxy
xcaddy | caddy-docker-proxy | |
---|---|---|
3 | 55 | |
786 | 2,378 | |
3.1% | - | |
6.5 | 7.4 | |
2 days ago | 2 days ago | |
Go | Go | |
Apache License 2.0 | MIT License |
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xcaddy
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A Blazingly Fast Open-Source Federation V1/V2 Gateway
This approach offers a level of customizability similar to what xcaddy does for the Caddy server, eliminating the complexities associated with writing Rhai scripts to customize a precompiled binary, as is the case with the Apollo Router.
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NGINX Proxy Manager
I appreciate the reply. I took some time to look at your example so I can give some feedback on where I end up when I think about building / maintaining my own image.
My immediate reaction is that the example is nice as a one-off build, but it's much more complex if I need to set up something I can maintain long term. I might be overthinking it, but in the context of thinking about something I can maintain my thought process is below. The questions are mostly rhetorical.
First, what versions am I getting? Does using `2.5.1-builder` result in a customer built binary that's version `2.5.1`? The command usage [1] of the `xcaddy` command says it falls back to the `CADDY_VERSION` environment variable if it's not set explicitly. Since it's not set explicitly, I go looking for that variable in the Dockerfile [2].
That's some templating language I'm not familiar with and I can't track down where the variable gets set, at least not quickly. I'd probably have to spend an hour learning how those templates work to figure it out. To make a quicker, educated guess, it most likely matches the builder version. The docs said the version can be set to any git ref, so I can explicitly set it to v2.5.1 on the command line [3] to be certain.
Now, what version of `caddy-dns/cloudflare` am I getting? The xcaddy custom builds section of the docs [4] says the version can optionally be specified, but it's not specified in the above example. There aren't any tags in the repo, so it's probably building off `master`. The doc says it functions similar to `go get`, but doesn't explain what the differences are and the default behavior isn't explained either.
The docs for `go get` [6] say it can use a revision, so maybe a specific commit can be used for that, but I'd need to test it since I'm not super familiar with Golang.
What other risks come along with building and maintaining my own custom image? I could end up with a subtly broken build that only occurs in my environment. Portability doesn't guarantee compatibility [7] and building custom images increases the risk of compatibility issues beyond what I get with official images (building and running vs just running). That blog post is a really cool read on it's own BTW.
I need to consider the potential for breakage even if it's miniscule because my Docker infrastructure is self hosted and will be sitting behind my custom built Caddy image. If my custom image breaks, I need a guaranteed way of having access to a previous, known good version. This is as simple as publishing the images externally, but adds an extra step since I'll need an account at a registry and need to integrate pushes to that registry into my build.
If I build a custom image, do I let other people I help with the odd tech thing use it or is all the effort for me only? I don't want to become the maintainer of a Docker image others rely on, so I can't even re-use any related config if I help others in the future since they won't have access to the needed image.
To be fair, I also see things I don't like in the NGINX Proxy Manager Dockerfile [7]. The two that immediately jump out at me are things I consider common mistakes. Both require unlucky timing to fail, but can technically cause failure IMO. The first is using `apt-get update` which will exit 0 on failure and has the potential to leave `apt-get install` running against obsolete versions. The second is using `apt-get update` in multiple parts of a multistage build. If I were doing it I'd run `apt-get update` in a base image and avoid it in the builder + runtime images to guarantee the versions stay the same between the build container and the runtime container.
It took me about 1h to work through that and write this comment, so it's not just a matter of building a Docker image and plugging in the config. There's a lot of nuance that goes into maintaining a Docker image (I'm sure you know that already) and not having an image with the DNS plugin(s) baked in is a show stopper for anyone like me that can't justify maintaining their own.
Also, a 4 line Docker file looks nice in terms of being simple, but explicitly declaring or even adding comments describing some of the things I pointed out above can save people a lot of time. Even comments with links to the relevant portions of the docs would be super useful.
My reason for wanting the Cloudflare DNS plugin is that I have some things I want to run 100% locally without ever exposing them to the internet. The desire for wildcard certificates is to keep things from being discoverable via CTLogs.
I hope that's useful feedback. I realize someone bemoaning the difficulty of running your stuff at home lab / small business scale isn't exactly the target audience in terms of picking up customers that pay the bills. Thanks again for the reply / example.
1. https://github.com/caddyserver/xcaddy#command-usage
2. https://github.com/caddyserver/caddy-docker/blob/master/Dock...
3. https://github.com/caddyserver/caddy/tree/v2.5.1
4. https://github.com/caddyserver/xcaddy#custom-builds
5. https://github.com/caddy-dns/cloudflare/tags
6. https://go.dev/ref/mod#go-get
7. https://www.redhat.com/en/blog/containers-understanding-diff...
8. https://github.com/NginxProxyManager/docker-nginx-full/blob/...
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bouncer for caddy / crowdsec
Another option is to create the build yourself. In the repository an example of such a custom Caddy build is available in https://github.com/hslatman/caddy-crowdsec-bouncer/blob/main/cmd/main.go. You'll need Golang to be installed to be able to create a build this way. You can also use the xcaddy tool to build custom Caddy builds.
caddy-docker-proxy
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Eliminate IPv4 tax on AWS, is it that easy?
Caddy via Caddy Docker Proxy (network).
- Caddy-Docker-Proxy: Caddy as a Reverse Proxy for Docker
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Self-Hosted Is Awesome
https://github.com/lucaslorentz/caddy-docker-proxy
It handles the routing to multiple dockerized projects on one server, by scanning docker compose files for labels and automatically setting up the required caddy configuration.
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Keycloak SSO with Docker Compose and Nginx
My go to is always this instead:
https://github.com/lucaslorentz/caddy-docker-proxy
Single label to a docker container and with correct DNS you’ll have an automatically managed certificate right away.
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Working on Multiple Web Projects with Docker Compose and Traefik
I have had a great experience with using this: https://github.com/lucaslorentz/caddy-docker-proxy
It combines caddy with docker-compose labels, making it super easy to spin up new projects that can immediately be exposed.
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Caddy is the first and only web server to use HTTPS automatically and by default
If you want a slightly heavier but more robust solution, caddy-docker-proxy[0] is a plugin that listens to the Docker socket and automatically updates the Caddy configuration based on Docker labels you add to containers.
I.e. it makes Caddy act a bit more like Traefik. Most of the time, you'll just add the label `caddy.reverse_proxy={{upstreams http 8080}}` to your containers and the plugin will regenerate Caddy's configuration whenever the container is modified.
[0] https://github.com/lucaslorentz/caddy-docker-proxy
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Nginx Development Guide
I disagree, Caddy works great in Docker. See https://caddyserver.com/docs/running#docker-compose, and CDP is a project that autoconfigures Caddy from labels https://github.com/lucaslorentz/caddy-docker-proxy. Regarding plugins, it's super simple to write a Dockerfile to add plugins, we ship a builder image variant that can be used to compile in any plugins you want.
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How I run my servers
````
This way, Caddy will buffer the request and give 30 seconds for your new service to get online when you're deploying a new version.
Ideally, during deployment of a new version the new version should go live and healthy before caddy starts using it (and kills the old container). I've looked at https://github.com/Wowu/docker-rollout and https://github.com/lucaslorentz/caddy-docker-proxy but haven't had time to prioritize it yet.
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Which reverse proxy are you using?
Docker labels support is available via a plugin https://github.com/lucaslorentz/caddy-docker-proxy
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My repository of the week: NGINX Proxy - Automated nginx for your containers
Or caddy-docker-proxy: https://github.com/lucaslorentz/caddy-docker-proxy
What are some alternatives?
caddy-crowdsec-bouncer - A Caddy module that blocks malicious traffic based on decisions made by CrowdSec.
Nginx Proxy Manager - Docker container for managing Nginx proxy hosts with a simple, powerful interface
caddy-authorize - Authorization Plugin for Caddy v2 (JWT/PASETO)
Caddy - Fast and extensible multi-platform HTTP/1-2-3 web server with automatic HTTPS
caddy-ratelimit - HTTP rate limiting module for Caddy 2
traefik - The Cloud Native Application Proxy
forwardproxy - Forward proxy plugin for the Caddy web server
Portainer - Making Docker and Kubernetes management easy.
souin - An HTTP cache system, RFC compliant, compatible with @tyktechnologies, @traefik, @caddyserver, @go-chi, @bnkamalesh, @beego, @devfeel, @labstack, @gofiber, @go-goyave, @go-kratos, @gin-gonic, @roadrunner-server, @zalando, @zeromicro, @nginx and @apache
jellyfin-media-player - Jellyfin Desktop Client based on Plex Media Player
cosmo - The open-source solution to building, maintaining, and collaborating on GraphQL Federation at Scale. An alternative to Apollo Studio and GraphOS.
docker-pi-hole - Pi-hole in a docker container