Keycloak: Open-Source Identity and Access Management

https://www.keycloak.org/

by memorable • 4 years ago

388 235 4 years ago

psankar• 4 years ago

We tried using keycloak in a startup where I worked. It needed a loooooooot of memory and was very slow to start. It probably needed some JVM tuning, but we were just deploying as a stateful set (for the postgres). The docker images were also huge.

We had to use another FOSS project called Gatekeeper as an authentication software along with keycloak, which got obsoleted and replaced with a different project (lukedo proxy or some such).

The community support was also relatively not that active like other FOSS project that we used (for other areas of the stack). Overall, the experience was not so great that we decided to ditch both keycloak and gatekeeper. This was about a couple of years back. Not sure what the current status is.

Some other alternatives that we wanted to try were from the Ory project (Kratos etc.) But we just went with some proprietary AUTH solution in our startup.

Datagenerator• 4 years ago

Which?

sz4kerto• 4 years ago

Keycloak is now running on Quarkus, so startup times are much faster (few seconds). But -- KC is not something you start up often (in production).

It's reliable, flexible and actively developed, so not a bad choice as a self-hosted IAM solution.

vetinari• 4 years ago

With Quarkus, they went into other extreme -- if you are using docker, to get as fast startup as possible, you have to build your image with your configuration/modules used baked in.

Overall, I'm pretty satisfied. There are some bumps, but they are not Keycloak fault (having two different keytabs for two different host names for two different container images sharing same IP and reverse name not matching is kind of difficult).

nird2• 4 years ago

We have been using it for 6-7 years now. Have been able to run very stable and integrated a lot of external IdP's to offer proper SSO on mulitple of our software stacks. Added a lot of other open source pieces of software we run for our backoffice needs (hashi vault, adminbro, etc.). So far very happy with it. Running in clustered mode without issues and as such little issues with the startup times. It probably helps that we have a solid background in Java based development and deployment and are less worried about the amount of memory it uses for the full suite.

lifeisstillgood• 4 years ago

This fascinated me - where and how does this fit into other identity providers (and thence into SSO).

I kind of yearn for client certificates everywhere simply because I can grok how that remains secure as we pass through layer after layer. the rest I just worry about

RandomBK• 4 years ago

In my experience, Keycloak is best treated as a "pet" in the "pet v.s. cattle" spectrum. It takes a while to warm up, so you don't want to be constantly restarting it. I deployed it out-of-sync with the main application deployments.

As an open source option, it's quite powerful and full-featured. It's also quite configurable.

If I had one feature ask, it's that it doesn't play well with infrastructure-as-code ideas. While you can load a new realm from a JSON, it's harder to keep changes synced after that.

base698• 4 years ago

Recently been using it and have been happy with it. Being able to plug some of our existing providers in and have one solution to integrate with has been the big win.

maxbaines2• 4 years ago

Using Keycloak for all authentication both in the cloud under Linux and within Windows Enterprise Environments. Use it for SSO for Node-RED, Grafana, Aspnet & VueJS apps. Was fairly easy to move from Auth0.

xupybd• 4 years ago

I've been investigating an authorization application to use with the SAFE stack. I'm testing Keycloak and it looks good so far.

pharmakom3• 4 years ago

Similar scenario here. Drop me a comment if you want to share anything learned.

pharmakom3• 4 years ago

My biggest complaint with Keycloak is that the documentation is poor. You will need to set various flags to fit your use-case. Lots of googling and SO to get things running. Some of the options have changed since 17.x so many guides are outdated.

sascha_sl8• 4 years ago

This was definitely true for the Wildfly/JBoss version, but on Quarkus configuring Keycloak is mostly trivial now[1]. The only options I had to set outside environment variables in production are related to Infinispan discovery.

[1] https://www.keycloak.org/server/all-config

whazor• 4 years ago

Authentik is also worth checking out: https://goauthentik.io/

The biggest benefit is that Authentik supports Forward Auth out of box. This means that you might not need oauth2proxy.

gabereiser2• 4 years ago

I’ve been a keycloak advocate since my jboss days (really the only good thing that came out of jboss). I have never heard of authentik and I’m so glad you mentioned it, it looks amazing! I had been contemplating doing a similar project but this would satisfy that need. Thank you.

dugite-code• 4 years ago

Just be careful with Athentik, it is an extremely young, rapidly developing project. So expect the odd pitfall

p_l2• 4 years ago

Arguably best is to not have proxied oauth at all and instead implement oauth in your software.

CGamesPlay• 4 years ago

This looks awesome! I dropped Keycloak because it's 2 GiB of RAM was too much for me to commit to SSO on my tiny VPS, so I just switched to static htpasswd management. But this looks like it might be a great replacement.

It seems to support groups/selective access to services through group membership, which is great. Does it support username authentication or does it require that an LDAP server or other OIDP is used as a source of truth?

kirbyfan64sos• 4 years ago

Do note that Authentik, being a Python project, still uses a decent amount of RAM IMO.

I think Keycloak 18 should use less memory? Might be worth a try.

hamandcheese• 4 years ago

I was interested in Authentik, but I was perusing the docs and was extremely put off by the way in which Authentik manages itself as well as additional “outposts”.

The docker integration will automatically deploy and manage outpost containers using the Docker HTTP API.
This integration has the advantage over manual deployments of automatic updates (whenever authentik is updated, it updates the outposts)

NO. I do not want software I use to update itself automatically in prod. And I especially do not want to give a docker socket to it so that it can automatically add new components.

https://goauthentik.io/docs/outposts/integrations/docker

eclipsenet• 4 years ago

Looks like it got the internet hug-o-death or something b/c it looks like it's down.

deadbunny• 4 years ago

Getting cert errors for me when visiting that link. Using a self signed cert by the looks of it?

Edit: Ok now. Looks like they use Let's Encrypt which will default to a self signed cert if it can't get a LE one for whatever reason IIRC.

davidcollantes• 4 years ago

We are currently using Shibboleth, and would love to get away from using java/Tomcat. It looks like Keycloak also uses java. Is there an alternative to this that doesn't require it?

yawniek• 4 years ago

possibly https://www.ory.sh/

sascha_sl8• 4 years ago

ORY is amazing, but it also requires significiant investment. It's a headless API (so you never have to touch OAuth/OIDC internals) for building your own IdP.

bfm2• 4 years ago

We are currently evaluating self hosting supabase auth.

ffo16• 4 years ago

Maybe https://github.com/zitadel/zitadel could be an alternative to you.

Its written in Go, can be self-hosted or used from a cloud service.

It will also soon (end of May) provide SAML 2.0 support besides the current OpenID Connect and OAuth support.

Disclaimer: I am one of the authors ;-)

sigzero3• 4 years ago

Make sure you get v2 on the HN front page!

francislavoie2• 4 years ago

Does it/will it support Forward Auth style usage for plugging in with reverse proxies? Asking as a Caddy maintainer, I'm working on this right now and we've been working with Authelia to test it out, would be cool to get it working with another Go auth server! See https://github.com/caddyserver/caddy/pull/4739

mooreds23• 4 years ago

FusionAuth uses Java to, but if you use Docker/kubernetes, you don't really have to think about it: https://fusionauth.io/docs/v1/tech/installation-guide/docker

And even if you don't, we install our own Java and manage it for you, so there's no Tomcat WAR file installation or anything like that.

Disclosure: I work for FusionAuth.

brightball2• 4 years ago

Does it support webAuthn?

bayesian_horse2• 4 years ago

Yes

jeroenhd• 4 years ago

Yes, I've seen it used both as primary factor and as a second authentication factor (I'm not sure you would ever need it as 2FA, but whatever). Requires some setup, though.

mooreds23• 4 years ago

Yup. Here's the doco for configuring it: https://www.keycloak.org/docs/latest/server_admin/#_webauthn

brightball2• 4 years ago

Thanks! Didn’t see it when I was browsing.

schipplock3• 4 years ago

In Keycloak nothing made sense to me until I got myself familiar with OAuth 2.0 and OpenID Connect.

Keycloaks documentation seems vast, but isn't. There is also no way to search inside their documentation. It's a pity.

A better documentation is contained in the administration web ui itself. There are so many "hints" and tooltips for almost every option there is. It really helped me a lot.

Keycloak is good software. It never failed for me. Even upgrading from 7.x.x to 16.x.x somehow just worked.

Yes, their docker image is fat, but it's also very flexible. Now that they are basing Keycloak on Quarkus instead on Wildfly, the docker image should shrink in size.

    quay.io/keycloak/keycloak   18.0.0                      a6bd0f949af0   15 hours ago   562MB
    quay.io/keycloak/keycloak   18.0.0-legacy               421e95f49589   46 hours ago   753MB

ok, still big :).

Beware: they aren't using Docker Hub anymore. Newer versions are on Quay only (https://quay.io/repository/keycloak/keycloak).

I'm happy with Keycloak. Also nice folks around Keycloak.

imglorp• 4 years ago

We're still on the older one and looking forward to the Quarkus improvement specifically for boot times. Even with an empty DB, the old one takes several minutes to load and come up. It's the long pole in our install.

Very happy with KC otherwise. We make heavy use of its nice API to create providers and clients at install time.

chrisoverzero• 4 years ago

Beware: they aren't using Docker Hub anymore. Newer versions are on Quay only

Oh, right, Quaycloak.

zeepzeep• 4 years ago

Quaaludes... what?

mooreds23• 4 years ago

Beware: they aren't using Docker Hub anymore.

Do you know why? Is it because of the docker hub pricing changes?

I found this discussion on the mailing list but didn't see a reason why: https://lists.jboss.org/pipermail/keycloak-user/2019-March/0...

mkdirp• 4 years ago

Pretty sure it's because the core devs are RH employees, who owns Quay. Seems reasonable to keep things on your own infra.

Having said that, I know there has been some falling out between RH and Docker some time ago, which was one of the reason RH ended up creating Podman.

papercrane• 4 years ago

This is the publicly stated reasoning:

https://lists.jboss.org/pipermail/keycloak-user/2019-March/0...

Mostly I think the answer is just that it's a Red Hat project and Red Hat wants to use their ecosystem.

sascha_sl8• 4 years ago

You should really be building your own multi-stage container so you can prebake KC_FEATURES and KC_DB into the image.

https://www.keycloak.org/server/containers

schipplock3• 4 years ago

We still use an old version without Quarkus :). But yes, that's the way to go.

Perseids2• 4 years ago

In Keycloak nothing made sense to me until I got myself familiar with OAuth 2.0 and OpenID Connect.

Hot take: OAuth2 is a really shitty protocol. It is one of those technologies that get a lot of good press, because it enables you to do stuff you wouldn't be able to do in standardized manner without resorting to abysmal alternatives (SAML in this case). And because of that it shines in comparison. But looking at it from a secure protocol design perspective it is riddled with accidental complexity producing unnecessary footguns.

The main culprit is the idea to transfer security critical data over URLs. IIUC this was done to reduce state on the involved servers, but that advantage has completely vanished, if you follow today's best practices to use the PKCE, state and nonce parameter (together with the authorization code flow). And more than half of the attacks you need to prevent or mitigate with the modern extensions to the original OAuth concepts are possible because grabbing data from URLs is so easy: An attacker can trick you to use a malicious redirect URL? Lock down the possible redirects with an explicitly managed URL allow-list. URLs can be cached and later accessed by malicious parties? Don't transmit the main secret (bearer token) via URL parameters, but instead transmit an authorization code which you can exchange (exactly) once for the real bearer token. A malicious app can register your URL schema in your smartphone OS? Add PKCE via server-side state to prove that the second request is really from the same party as the first request...

It could have been so simple (see [1] for the OAuth2 roles): The client (third party application) opens a session at the authorization server, detailing the requested rights and scopes. The authorization server returns two random IDs – a public session identifier, and a secret session identifier for the client – and stores everything in the database. The client directs the user (resource owner) to the authorization server giving them the public session identifier (thus the user and possible attackers only ever have the possibility to see the public session identifier). The authorization server uses the public session identifier to look up all the details of the session (requested rights and scopes and who wants access) and presents that to the user (resource owner) for approval. When that is given, the user is directed back to the client carrying only the public session identifier (potentially not even that is necessary, if the user can be identified via cookies), and the client can fetch the bearer token from the authorization server using the secret session identifier. That would be so much easier...

Alas, we are stuck with OAuth2 for historic reasons.

[1] https://aaronparecki.com/oauth-2-simplified/#roles

e1g2• 4 years ago

You're right about the complexity and the steep learning curve, but there's hope that OAuth 2.1 will simplify this mess by forcing almost everyone to use a simple setup: authorization code + PKCE + dPoP. No "implicit flow" madness.

Another big problem with OAuth is the lack of quality client/server libraries. For example, in JS/Node, there's just one lone hero (https://github.com/panva) doing great work against an army of rubbish JWT/OAuth libs.

sascha_sl8• 4 years ago

For most Keycloak users, a very tiny subset of OIDC is being used too. Usually there is no three way relationship between a third party developer, an API provider and a user anymore. You could rip scopes out of Keycloak and few users wouldn't be able to cover their use cases. Rarely is there more than one set of scopes being used with the same client.

Keycloak also supports some very obscure specs, my favourite probably being "Client Initiated Backend Authentication" which can enable a push message sent to authenticator app type authentication flow using a lot of polling and/or webhooks.

erwincoumans• 4 years ago

Thanks for the thumbs up!

> 562MB

Curious, why is the Quay image/container so large? Is there a way to list the contents without downloading it?

yrro2• 4 years ago

The base image (registry.access.redhat.com/ubi8-minimal) is about 100 MiB.

    ID                                                                CREATED       CREATED BY                                                                                                                                                                                                                                                                                SIZE        COMMENT
    a6bd0f949af01b5680767225c3ac2b428d9b6921a6a9a420f6189f2523931c4c  18 hours ago  ENTRYPOINT ["/opt/keycloak/bin/kc.sh"]                                                                                                                                                                                                                                                    0 B         buildkit.dockerfile.v0
    <missing>                                                         18 hours ago  EXPOSE map[8443/tcp:{}]                                                                                                                                                                                                                                                                   0 B         buildkit.dockerfile.v0
    <missing>                                                         18 hours ago  EXPOSE map[8080/tcp:{}]                                                                                                                                                                                                                                                                   0 B         buildkit.dockerfile.v0
    <missing>                                                         18 hours ago  USER 1000                                                                                                                                                                                                                                                                                 0 B         buildkit.dockerfile.v0
    <missing>                                                         18 hours ago  RUN /bin/sh -c microdnf update -y &&     microdnf install -y java-11-openjdk-headless && microdnf clean all && rm -rf /var/cache/yum/* &&     echo "keycloak:x:0:root" >> /etc/group &&     echo "keycloak:x:1000:0:keycloak user:/opt/keycloak:/sbin/nologin" >> /etc/passwd # buildkit  272 MB      buildkit.dockerfile.v0
    <missing>                                                         18 hours ago  COPY /opt/keycloak /opt/keycloak # buildkit                                                                                                                                                                                                                                               192 MB      buildkit.dockerfile.v0
    1ecf95eda522cf8db84ac321e43a353deea042480ed4e97e02c5290eb53390c3  5 days ago                                                                                                                                                                                                                                                                                              20.5 kB     
    <missing>                                                         5 days ago                                                                                                                                                                                                                                                                                              107 MB      Imported from -

password43214• 4 years ago

Keycloaks documentation seems vast, but isn't. There is also no way to search inside their documentation.

This is one area where incentives don't align correctly for open source projects that offer commercial support.

freedomben4• 4 years ago

Disclaimer: Former Red Hatter but worked on OpenShift, not Keycloak

Working as a person providing commercial support for open source projects, I promise it doesn't actually work that way. Incentives are entirely for creating good documentation. Having crappy docs only hurts project adoption for paying and non-paying customers, increases the support burden, and wastes the time of your employees (who are the primary consumers of that documentation).

Usually documentation isn't great because writing (and maintaining!) good documentation is really hard. It's a continual effort and it takes engineer time away from bug fixes and feature dev, two things for which there is never ending demand for.

Edit: Pro-Tip: With Red Hat projects (like Keycloak, OKD, etc) it's always worth looking at the RH product docs as well as "open source" docs. For example if you use OKD, check OpenShift docs as well as OKD docs. You do (unfortunately and I wish they'd remove this) usually have to log in to a Red Hat account but you don't have to pay. You can create a free account and use that.

smcnally• 4 years ago

This is one area where incentives don't align correctly for open source projects that offer commercial support.

This is true in some[0] cases. It's also true that documentation is key source of customer acquisition and retention.

Projects get traction by making it useful out of the box[1] for some use-cases, making it appealing for hackers to config and extend, teasing features the former would pay for and the latter could figure out the buy v build.

Projects that do this well also learn shittons from real-world usage and feedback informing their roadmap and new opportunities to pursue.

[0] True when the perspective is "If we make the docs too good we're losing revenue" / "Everyone using Feature X gratis is a loss in MRR." It's an understandable view that's held widely. It's not often a significant revenue factor in my experience, and ~never when accounting for product and market insights gained by wider adoption.

[1] https://news.ycombinator.com/item?id=31259034

jonkoops2• 4 years ago

We're actually working on a new version of the Administration UI at the moment (I'm one of the devs) so this is useful feedback. We're looking for folks to try it out, so take a look at https://github.com/keycloak/keycloak-admin-ui/.

You can try it out on the latest Keycloak by passing the --features=admin2 flag on startup.

newera2016• 4 years ago

We have way too many issues with KeyCloak. Sometimes I wonder why did we integrate this. One of the main issue is when you authorize by Github but cancel the authentication, it redirects to KeyCloak page rather than our login page. Couldn't find any solution yet.

tamarok2• 4 years ago

Will this have an impact on the auth screens and the related theming?

unixhero• 4 years ago

I come from cybersec and I want to give you mad props for this product and project. It fills gaps in many places!

yrro2• 4 years ago

Can you disclose the number of users & apps you have? Are you using Keycloak or do you pay for Red Hat Single Sign-On (for context, that's the name of the downstream product that Red Hat sell subscriptions for).

schipplock3• 4 years ago

We are using keycloak, not SSO. There is no long-term-support keycloak version available, so we are considering buying into Redhat SSO.

X-Istence• 4 years ago

The downside to using Red Hat Single Sign-On is that it is a vastly inferior product to using Keycloak upstream as it is so many versions behind.

This means that bug fixes and features haven't trickled down yet. Although RH SSO 7.5 jumped from Keycloak version 9.0.17 (in RH SSO 7.4) to 15.0.2 so there's some improvement there... but Keycloak just released 18.0.0...

0xbadcafebee2• 4 years ago

Newer versions are on Quay only

Thanks for mentioning this, I didn't realize Keycloak is a RedHat product. I'll plan to move to something else. Anything RedHat makes turns into a catastrophe.

paulmd2• 4 years ago

Keycloaks documentation seems vast, but isn't. There is also no way to search inside their documentation. It's a pity.
A better documentation is contained in the administration web ui itself. There are so many "hints" and tooltips for almost every option there is. It really helped me a lot.

To echo everyone else: the Keycloak documentation does not do a good job of hand-holding you at all, and the number of possible ways you can configure and use the system and the amount of jargon and terminology used is massively overwhelming to someone trying to get started. It would be very helpful to have some "white paper"-esque summaries that walk you through some simple, typical use-cases.

I looked through the docs quickly before making this post and as an example here's a basic task for initial setup ("hook up an IDP", basically giving keycloak its database of users), and it's utterly incomprehensible to any human being who doesn't already know how to work the system and really essentially worthless even then. It's just... reading me the command line options and a couple config files? What do any of those values even mean? This is core functionality for Keycloak, and the documentation consists of "yeah, here's a command line with placeholders and a text file syntax, good luck bitches!".

https://www.keycloak.org/server/configuration-provider

Honestly I feel like you could do better simply by jumping into the UI and playing with options, it's not entirely unintuitive what's going on in the UI, but the docs are basically incomprehensible.

I actually know of several projects that have pretty much bogged down because of Keycloak configuration or role/privilege mis-configuration issues and it's not hard to see why. It's the turing tar-pit of IDP, everything is possible and nothing is easy (or documented). Which is a shame because it seems like an awesome piece of software, just inscrutible to the un-initiated.

As others are noting, I'm sure some of this is due to OAuth2 being an inscrutable piece of shit in general, same thing, it tries to do everything and it's so un-opinionated that you end up with a bunch of basically incompatible implementations that are each effectively their own "standard" anyway.

(posted this on the wrong child, moving it to the parent)

tamarok2• 4 years ago

For the most part I am also happy with Keycloak, but they could do a far better job documenting things, especially their language adapters. For example the "Readme" for the `keycloak-connect` Node.js package has a link to documentation, but that documentation fails to document anything around the package.

Likewise I had better luck once I understood OpenID and then treating Keycloak as an extension of that. I even ended up writing my own code to deal with the bearer token passed to our API, because I couldn't find anything. If anyone is interested I can share it, but it isn't anything amazing.

Most of my best help came from outside of the Keycloak support groups and instead reaching out to other people who use Keycloak.

johnmarcus• 4 years ago

I'm litterally about to jump from 8 to 17 this week, so that's good to hear. It seemed seamless on my local setup and was wondering if it was just too good to be true. It's a great piece of software.

You are correct about the documentation. I find the tragedy of open source documentation is that the people who need it most - the novices - are the ones whom could write it best - if they only knew if what they were saying was accurate. And then by the time you become an old-timer, and know thy ways, you just want to wipe your hands and walk away, because your tired....and still not sure if all your knowledge is accurate.

But anyway, once it's all figured out, it runs very reliably.

doctor_eval7• 4 years ago

My company used Keycloak for a long time (I'm not there any more) and I agree with everyone here, it works great, but it's hard to understand unless you already know oauth/oidc, and it is a huge binary.

While Keycloak is a great out-of-the-box solution, my #1 complaint at the time was how heavyweight it was, which was a burden for development, followed closely by its packaging as a J2EE app and bundling with Wildfly (at the time).

This meant we needed to know not only about Keycloak itself, but also about Wildfly's special quirks, the clustering system (Infinispan??), Java and Docker.

Now it's packaged with Quarkus, which is another dependency to learn about, and to be honest despite the quality of the finished product, all those dependencies have become pretty off-putting.

So while I can recommend Keycloak's functionality, if you're not already deploying Java apps as part of your job, I suspect it will present a pretty serious administrative burden to deploy into serious production.

maxbaines2• 4 years ago

For me this is all kind of opaque, apart from a theme put into a folder and some Environment Variables set i don't touch anything in Keycloak, first had no requirement to consider it and second very likely would be doing something maybe not best practice i.e oidc, oauth based.

Its the only java app we run in stack, but doesn't matter to me in Docker and within Windows we run a portable java from a subfolder of keycloak so not System wide in Path

littlecranky6710• 4 years ago

Was working at a Java shop once which used Keycloak as a central IAM solution. As an FE Dev, I was tasked to customize/style the login-page provided by Keycloak, and quickly faced what you described: Pretty heavily Java-based, even to edit HTML templates I had to recompile using a full blown Java/JVM stack.

As an FE dev without Java background, this became pretty difficult. But once we finished that with the help of some of the BE Java devs, it ran (and still runs) quite stable and also the KeycloakJS adapter I integrated was alright without much surprises.

spacemanmatt2• 4 years ago

Java backend/React frontend dev here.

I customized Keycloak 10 login page a while back, and it did not require anything but markup. My Keycloak 18 instance runs the same customization now, unchanged.

oauea3• 4 years ago

even to edit HTML templates I had to recompile using a full blown Java/JVM stack

Next time check the docs and turn off the theme cache: https://www.keycloak.org/docs/latest/server_development/#cre...

While creating a theme it’s a good idea to disable caching as this makes it possible to edit theme resources directly from the themes directory without restarting Keycloak.

psnehanshu2• 4 years ago

Why customize the FE when you can use the keycloak-js[1] NPM library to integrate with any JS framework?

[1] https://www.npmjs.com/package/keycloak-js

ffo16• 4 years ago

You might want to have a look on zitadel [1]

If you are intrigued into the differences, you can read some of them here [2]

Oh and judging from your username: it could be interesting to you... because we use eventsourcing and cqrs ;-)

Disclaimer: I am one of the authors

1. https://github.com/zitadel/zitadel/

2. https://zitadel.ch/blog/zitadel-vs-keycloak

sebmellen2• 4 years ago

What is your opinion on ORY, specifically ORY Kratos? We have been building on Kratos for some time now and find that it is not super well documented, but it is still a very pleasant experience and their ORY Cloud project is backed by support from their team.

How does Zitadel differ/compare? Do you have similar goals as an organization?

jordemort2• 4 years ago

I was interested in Zitadel, but because it requires Kubernetes, it can't replace Keycloak in my docker-compose managed homelab setup. If you could just run it as a standalone container, I'd give it a shot.

mooreds23• 4 years ago

We hear comments like this a lot. Keycloak has a lot of functionality but also a lot of quirks. We have a product, FusionAuth, that folks often consider at the same time.

Similarities between our products:

* Overall base feature set (OAuth, OIDC, SAML, user management, authentication, RBAC) is similar.

* Both written in Java.

* Both use container technology to hide Java from you :)

* Both offer commercial support (Redhat SSO is the commercial offering for Keycloak, FusionAuth has paid editions with support). FusionAuth is much less expensive (compare https://marketplace.redhat.com/en-us/products/red-hat-single... with https://fusionauth.io/pricing .)

* Both offer the ability to self-host.

* Both develop in the open (we use GitHub issues, they use a mailing list).

Differences:

* They're OSS, we are free as in beer.

* I haven't found a compelling hosting solution for Keycloak, most folks self host. FusionAuth offers a hosted product if you'd like.

* Keycloak has more niche features (CAS SSO support) and a bigger community.

* FusionAuth has better, more straightforward docs.

* FusionAuth user UI customization is easier.

* FusionAuth supports a number of languages with client libraries for easier config management. I only saw a python client library for Keycloak.

* FusionAuth supports unlimited tenants, limited only by your server's resources. We have folks running thousands of tenants. Last time I looked Keycloak had issues around 400 realms (their term for tenants): https://keycloak.discourse.group/t/maximum-limit-of-realms/8...

Disclosure: I work for FusionAuth.

oauea3• 4 years ago

Disclosure: I work for FusionAuth.

Don't worry, that was obvious.

beachy2• 4 years ago

Realms are not necessarily equivalent to tenants in Keycloak.

You can run many tenants inside a single realm (we do). They can all log in to their account using Google, LI, etc., as well as email/password.

It's only if your tenant requires SSO, e.g. to their corporate idp, that their own realm is required.

Of course you may choose architecturally to put every tenant in their own realm but that is overkill IMO.

advaitruia5• 4 years ago

my #1 complaint at the time was how heavyweight it was, which was a burden for development What do you mean by "heavyweight"?

I ask because Java in other large open source projects (Elastic Search, Cassandra, Android) and it really depends on how its being used (by Keycloak as well)

I've also come across GraalVM which can significantly reduce Java memory consumption (if that is something you are referring to)

doctor_eval7• 4 years ago

Well just bear in mind that this was about 4 years ago (we were fairly early adopters apparently), and I understand that my comments here are probably no longer fair, and probably don't apply to KC at it is today.

But since you asked, basically Keycloak was by far the single largest component of our stack, which didn't sit well with me because by any measure, our application was far more complex than Keycloak.

At the time we were transitioning away from JEE to JSE microservices, and Keycloak was a full-blown JEE application with all the heaviness that we were successfully leaving behind; it took over a minute to start, while our other Java services would launch in less than a second. Of course this didn't impact production at all - but most engineering time is spent in development and testing, where this was a real problem, especially if we were experimenting with and learning about new features.

All of this contributed to my perception of heaviness.

voidcommonstock• 4 years ago

Another OAuth2 server, that's well on the other side of the heavyweight spectrum vs. keycloak:

https://github.com/curveball/a12n-server

jbaczuk• 4 years ago

I knew I could smell Java when I went to their website...

marcosdumay• 4 years ago

Languages (actually, ecosystems) do have specific smells. You can perceive them on every artifact. It's an interesting observation.

deependra2• 4 years ago

https://wso2.com/asgardeo/

burn_3212• 4 years ago

Isn't it a bit expensive? I mean both wso2 subscription and asgardeo tiers.

jcroll• 4 years ago

Spring has an oauth2 authorization server that is currently in early release: https://github.com/spring-projects/spring-authorization-serv...

I'm building something with it currently and it's quite nice, especially if you are already familiar with spring security. Documentation is quite sparse tho.

bfm2• 4 years ago

Relevant discussion comparing KeyCloak to the Ory stack https://news.ycombinator.com/item?id=25763320

dbrgn• 4 years ago

Does someone here know how Keycloak compares to Gluu?

mooreds23• 4 years ago

From what I've heard, Keycloak is better supported and has a bigger community that Gluu (12k stars vs 300 stars on GH). They are both open source and in Java. I've heard from users that Gluu can be a resource hog.

n3t• 4 years ago

Can I use Keycloak for the following use case?

I have a few services on my family server (say, Gitea, Grafana, finance tracking app etc.). I'd like to have a SSO but also limit which users can use which services (e.g. my significant other can use Grafana but no Gitea).

Is integrating above services with Keycloak enough? Or would I need another components? Or maybe I've got it wrong and should reconsider the architecture?

fjni4• 4 years ago

This will work. But learning curve is steep as others have said.

p_l2• 4 years ago

It will definitely work - Keycloak can provide its own user database, or it can use external one, as well as do some crazier things that go outside of the scope you mentioned.

In simplest setup (non-HA, local user database), you would create users inside Keycloak, assign them to different groups, then create applications (which handle configuration for individual applications like grafana and gitea) and create rules that specify that only users that belong to specific group can login to specific application.

You can also allow linking multiple external SSOs this way to single keycloak identity, and even include login through kerberos5 or client certificates.

mooreds23• 4 years ago

This is a very common auth situation (wanting to have a central place to control access to multiple applications).

The biggest hurdle I see is do all of your apps support SAML or OAuth/OIDC for authentication/authorization? The SSO tax is a real thing.

deependra2• 4 years ago

Another Opensource IAM provider is WSO2.

Now they offer a cloud solution too.

https://wso2.com/asgardeo/

topspin• 4 years ago

I've used both the opensource WSO2 and Keycloak. That latter is better designed and suffers fewer glitches, which is important when dealing with the complexities of oidc/oauth2. It's not that WSO2 doesn't do what it says on the tin; it works. Keycloak just works so well it's almost fun.

One feature Keycloak lacks compared to WSO2 is SCIM (System for Cross-domain Identity Management). That actually matters to me. There is a third party Keycloak extension[1] that implements SCIM, but I can't speak to it.

[1] https://github.com/Captain-P-Goldfish/scim-for-keycloak

fjni4• 4 years ago

My biggest issue in the version I was evaluating: Some service providers use “email” as username (in fact many do.) Keycloak doesn’t make it easy to prohibit users from changing their own email, making it trivial to impersonate someone else and gain access one shouldn’t have.

https://keycloak.discourse.group/t/hide-disable-email-change...

mooreds23• 4 years ago

Did they offer some kind of verification path?

So you could only allow an email change if the user proved they owned the new email account by clicking a link or entering a code sent to that account?

Seems like a natural option.

Of course, allowing you to disallow email changes seems pretty reasonable too.

fjni4• 4 years ago

The issue if I remember correctly was that you could require the email to be verified. But while that verification was pending, it would already use the new email as the user’s asserted attribute.

sascha_sl8• 4 years ago

Keycloak actually makes it very easy now, assuming you have account-api and account2 feature flags set (default these days). You remove "manage-account" inside the "account" client from the default roles. Do mind this breaks the account console for those users (which is what you probably want anyway).

fjni4• 4 years ago

I don’t remember exactly, but I think this also took away the ability for users to manage their factors (I.e. register a new hardware token)

kitsune_• 4 years ago

Documentation is its weak point, other than that it works as intended.

littlecranky6710• 4 years ago

As others mentioned, Keycloak is a good choice if you need a self-hosted IAM solution and are familiar with Java development.

If you don't need selfhosted, I can recommend using Amazon AWS Cognito as a OAuth2/IAM solution - it is included in the free tier for up to 50.000 MAUs, plus the signup/lost password mails etc. are sent through Amazon SES, which heavily increases the inboxing rate. You could always transition later to a self-hosted solution like keycloak. Given both are OAuth2, that transition should be smooth.

mooreds23• 4 years ago

What are your main reasons for recommending Cognito? That it is free and easy to get going with?

Have you customized the user login experience?

I only ask because I've heard folks talk about how Cognito does the basics right (which is great, no one should roll their own auth) and is quick to get started with, and is serverless and free (unless you want SAML connections).

But once you get past the basics, it turns into a ton of hassle. And there's been little progress in feature set/docs/etc (though last year they did do a UI refresh).

* https://twitter.com/zackkanter/status/1488297503455956992

* https://fusionauth.io/blog/2020/11/18/reconinfosec-fusionaut...

They also don't let you export your password hashes, so when you transition to a self hosted solution, you must force your users to reset their passwords (or perform a drip migration). I wrote about these options here: https://fusionauth.io/blog/2022/02/07/how-to-migrate-from-co...

Disclosure, I work for a Cognito competitor, FusionAuth.

littlecranky6710• 4 years ago

Yes, I mostly recommend it because it is free and I've used before, plus I've been on several projects where we used Keycloak. For me, Cognito's 50.000 monthly active users is probably all I will ever need, and as you said, its quick to get started. Keycloak is the other way around, you will have to invest beforehand into learning and running it. Also, if you allow self-signup by your users, Email inboxing is a serious issue. So even if you run Keycloak yourself, you must think how you are going to deliver emails - which will bring you to other SaaS services like MailChimp or AWS SES anyway.

I can't speak about FusionAuth or Auth0, but yes, other SaaS might be as good as Cognito as well - but I do not know their free tiers.

Disclaimer: I am not working for any of those, just a small side-gig SaaS builder/WebDev speaking of my experience.

littlecranky6710• 4 years ago

I just checked prices of FusionAuth, and clearly your company is not interested in smaller side-gig like customers or self-funded startup that need to grow. Basic, production cloud options (non-eval) start at $162/mo for 10.000 MAUs. Once I move the slide to over 10.000MAUs the basic option is gone, and the cheapest option suddenly jumps to $1062/mo.

spicyusername• 4 years ago

For those that may not be aware, Keycloak is the upstream of Red Hat's SSO solution "Red Hat Single Sign-On", so there is a lot of weight behind it's development.

d4a• 4 years ago

I have been using Keycloak for the past couple of years in my homelab for SSO. It works really well, but there's a bit of a learning curve.

mooreds23• 4 years ago

What would you say have been the positives and negatives of it? Is the learning curve above and beyond OIDC/OAuth? How much did you have to customize it?

sascha_sl8• 4 years ago

Keycloak just assumes you know OIDC terminology, and it has some quirks that you might not expect (e.g. until recently, client credential grants created a refresh token).

It also, concerningly, uses some OIDC terminology outside of OIDC. There are two kinds of scopes in Keycloak. OIDC scopes (that are a set of mappers and represent permissions) and which client and realm roles can be included in a token (including the famous "Full Scope allowed" option that'll dump all roles into your token if you use the default OIDC scope).

A lot of behavior is also just implicit. Particularly in the Authentication Flow Editor. You just gotta know what you want if you want to customize them. The Audience mapper is another tricky one, relying on the (not OIDC) scope to figure out which client to put into the "aud" claim.

Loic2• 4 years ago

Slightly out of topic, but based on Caddy, has anybody experience with Caddy Security[0]? It is very easy to install but hard to find other users.

[0] https://github.com/greenpau/caddy-security

francislavoie2• 4 years ago

(Caddy maintainer here) I don't use that plugin myself but AFAICT most users ask questions on the GitHub repo so probably best to ask for help there if you need it.

As an aside, I've been working on making the Forward Auth usecase viable with Caddy, and we just got it working today https://github.com/caddyserver/caddy/pull/4739

Loic2• 4 years ago

Thank you, my question was more a kind of bottle to the sea, if anybody was using it. I was able to configure the plugin nicely and get gitea as a source of users and groups to control access to other applications.

And by the way, thank you, I am really impressed by the quality of Caddy.

orthoxerox• 4 years ago

Keycloak is a great piece of software if you have to authenticate against AD (on prem, not Azure AD). It's the best way to isolate all the crap like "user accounts live in this OU, but admin accounts live only in that OU. Oh, and we also have another domain where contractors live in the same OUs. And the groups that map to application roles are the same, but live in differently named OUs" and provide a simple OAuth 2.0/OIDC authentication/authorization interface to all this mess.

jcmontx• 4 years ago

I like IdentityServer4 even though is not supported anymore

sirmike_• 4 years ago

Have used and brought keycloak into many companies over the years as a solution. Steep learning curve a little. But it essentially works as designed either as the IDP (rare in my exp) or as a IAM broker more common.

Big companies need it because their hands are tied to old and inflexible vendor's APIs. However they can with some effort craft a branded and modern UI/UX. Backend works with just about anything old Auth related whilst supporting a newer modern Auth schemes.

I am surprised IBM has not made RHEL ruin it yet.

To say IBM is a slightly better steward of their open source efforts than Oracle never leaves one with much comfort.

sascha_sl8• 4 years ago

The secret to making keycloak UI/UX good is to disregard the account console and build your own with the new accounts API (which the accounts2 console also uses).

Also, if you just use one broker you can skip the login experience entirely.

0xbadcafebee2• 4 years ago

RedHat never needed anyone's help to ruin things. Their solutions are poorly designed bloated crap that "can get the job done" if you run them within a RedHat platform and don't mind banging your head against a brick wall. Just because they're open source darlings doesn't mean we can't call a spade a spade.

spacemanmatt2• 4 years ago

I've been running Keycloak for 4 years now, starting with version 10.

I like a well-disciplined stack and Keycloak is a star. And that's huge considering my other big players are Vert.x and PostgreSQL.

mberning3• 4 years ago

This part of the IAM space (SSO and AuthN) is so crowded with products, both paid and open source. When you look at governance, certification, lifecycle management, approvals, etc. there is almost nothing by comparison. A couple not so great commercial products and very little open source. Hopefully that changes.

ffo16• 4 years ago

Agreed, I mean that's why we built our solution completely open source in an open saas model and certified [1] our solution. We even provide our pentest results publicly, after mitigation of course [2].

The value we provide, when you are using our cloud, is the operational peace of mind, global scalability with data residency and access to deep technological knowledge.

We wrote some word about that in our blog [3] as well.

1. https://zitadel.ch/blog/openid-connect-certification

2. https://zitadel.ch/blog/pentest-results-h1-2021

3. https://zitadel.ch/blog/saas-vs-self-hosted

mberning3• 4 years ago

That is very cool. It looks like you actually have a lot of overlap with an identity orchestration solution, such as Strata.

mooreds23• 4 years ago

When you look at governance, certification, lifecycle management, approvals, etc

What do you mean by these?

Are you talking about SOC2/ISO27001 when you say certification?

Are you talking about provisioning/deprovisioning users (SCIM, etc) when you say lifecycle management?

What do you mean by approvals? Role changes requiring designated approval, or something else?

mberning3• 4 years ago

In a large, highly regulated business, these are all features that are needed in an IAM platform. The specific regulations vary by industry, country, etc.

Onboarding - birthright provisioning of accounts across many systems. Email, directory, etc.

Termination - automatically remove application level access across the business, not just the user's sso access.

Approval - the ability to request access to a system, have it go through a series approvals (which are audited) and then if approved, provision the correct level of access in the end system.

Certification - the ability to do periodic access reviews of users. This is typically run yearly or quarterly and you would be asking the user's manager and possibly the application owner to review their access and decide if it is appropriate. If the choice is made to revoke it the IAM system should go directly to the application and remove their access.

Yes SCIM covers some of this, but it is just a protocol.

sharkbird2• 4 years ago

Keycloak is great, using it in several projects. The only thing I've been missing is support for IdP discovery services, such as https://seamlessaccess.org/

la6472• 4 years ago

First of all it is not clear if it is stand alone OR SAAS product?

sascha_sl8• 4 years ago

It's the open source project that RedHat SSO is derived from, in the same way that OKD is the open source project that OpenShift is derived from.

mooreds23• 4 years ago

It is typically self-hosted.

A quick google turned up this Keycloak SaaS offering: https://www.cloud-iam.com/

burn_3212• 4 years ago

Anyone who has used wso2 identity server? It's an open source identity solution with many customizations available, but it requires a license for commercial use though.

s1mon• 4 years ago

Does Keycloak or any of the alternatives mentioned here do a good job of supporting localization? What about customization of the email messages for lost password flows?

mooreds23• 4 years ago

Can't speak for Keycloak, but FusionAuth supports localization of both user facing HTML and email/SMS messages. (Not the admin screens, alas.)

More details here: https://fusionauth.io/docs/v1/tech/core-concepts/localizatio...

15 languages have user facing translations: https://github.com/FusionAuth/fusionauth-localization/

Disclosure: I work for FusionAuth.

donatzsky• 4 years ago

Ory Kratos and Hydra are API only and so don't provide a UI. Localisation then is entirely up to you.

adlerhurst2• 4 years ago

zitadel allows to change the texts of emails and login texts, but at the moment only for languages already supported at the moment of writing en, it, de

disclaimer: I'm one of the authors of ZITADEL

zmmmmm• 4 years ago

Recently deployed Keycloak as a front end to hide legacy auth in our org and put OAuth in front of it. Despite the apparent complexity under the hood, it works great and no complaints so far. By and large, it just does what it says on the tin and works.

pax2• 4 years ago

Slightly off-topic: Could anybody recommend a lightweight, self-hosted php IAM that would handle new accounts (with email confirmation), password recovery, maybe user groups? I've been using Wordpress a couple of times just for the user management, not very proud of that but I didn't know better :/

mooreds23• 4 years ago

Geez, I don't know of any. If you have to stick with PHP (as opposed to using some of the other solutions mentioned in comments), I'd probably look to a framework. For example, here's Laravel's offering: https://laravel.com/docs/9.x/authentication#authentication-q...

mekster3• 4 years ago

SSO is not a blogging system. You don't choose by the language.

pax2• 4 years ago

I'm not looking for SSO. Did I use IAM wrongly? I'm talking about tiny apps that do require a protected back-end access, generally for somewhat bootstrapped CSOs. Not looking for anything fancy, but rather quick and dirty. For example, updating a SQLite db via gSheets API. PHP as that's default for shared hosting.

advaitruia5• 4 years ago

Other open source auth solutions: Ory, SuperTokens.com , Supabase / GoTrue

If anyone has evaluated these / Keycloak, I'd be happy to have a discussion on it

mekster3• 4 years ago

What are your experiences?

There are also Authentik, Authelia, Dex and gluu.

There was a bad review of gluu in Reddit.

https://www.reddit.com/r/selfhosted/comments/fxotbi/experien...

adlerhurst2• 4 years ago

i'm biased but another solution is zitadel. Would be happy to discuss :)

navbaker• 4 years ago

Transitioning a preexisting web stack in our corporate network from Identity Server to Keycloak has been my extremely rough intro to the world of auth. I would say I’m almost there, but have one issue holding me up. We have a few different data enclaves, including one that requires users to sign an NDA and be added to an AD group. I’ve been searching high and low to see if Keycloak has a simple flag to say “don’t let anyone in that isn’t a member of this AD group”. Does that exist or do I have to create groups in Keycloak itself and add users manually?

cpitman• 4 years ago

Sounds like you want to configure a Group Mapper: https://www.keycloak.org/docs/latest/server_admin/#_ldap_map...

oauea3• 4 years ago

I think keycloak is fantastic. The only thing I don't really like is how the user profile is deeply baked into the code. It seems they're working on improving this, but at least currently, it is not possible to have users that do not use a "First name" and a "Last name". Which is rather annoying when using it for things like game servers, where people just want to go by their username.

MrTawti• 4 years ago

I used Keycloak about 4 or 5 years ago in a former job. It did work very well. Note however, that we did not need to customize anything nor did we have to deal with scaling (in house web-app where it was rare to have more than 100 people using on it at any given day).

Right now, I'm looking into https://supertokens.com/ I have not used it in any capacity but it does seem much more approachable -at least to me- and allows for much flexibility (code wise on your own Backend).

I would be interested in hearing if anyone here has any feedback.

advaitruia5• 4 years ago

I'm of the project creators. Happy to discuss your specific use case and evaluate different providers.

Some recent feeedback:

"Hi yes, we are testing SuperTokens right now, and we are loving it Thanks for the great tool btw. it is really comfortable to integrate it into the project.

at first we decided to use Keycloak, spent a week to customize it for our needs. It was soooo painful :sweat_smile: then we started looking for alternatives"

"Been using it a bit for a pet project and I am quite impressed of how many integrations and documentation I find on its page. Also, really easy to use!" Just in case you are wondering where I found out about SuperTokens, it was on HackerNews"

EtienneK• 4 years ago

Keycloak is great! Just wish it didn't need so much RAM (2GB at least).

jcadam• 4 years ago

Keycloak is great if you need an SSO solution. We had a large number of small in-house applications at my previous job and managing logins was becoming a pain.

At my current job we use Okta. While the documentation is better, I don't think I prefer it over KC.

mekster3• 4 years ago

I've integrated keycloak for SSO between several self hosted apps and boy I had no idea what I was doing but copy paste config from left and right from various sites which worked in the end but does SSO have to be this complicated?

Can someone recommend a simpler solution to integrate SSO with online tools (like NextCloud, Discourse, Wiki.js, Gitea etc)?

Does anyone have experience with Authentik?

zmxz2• 4 years ago

I've used many solutions, even built my own in the end. Problem is that there's no software that can make SSO easy to understand if you don't know everything about SSO to begin with.

SSO is not that complicated to work with, the docs are just stupidly difficult to read and the point of the whole process is rarely explained. Learning how without knowing why is nearly impossible.

mooreds23• 4 years ago

even built my own in the end.

Can you tell me more about this?

Did you end up building your own from the ground up, or leveraging existing libraries?

Is it open source/available for others to use?

JacobiX• 4 years ago

I've integrated keycloak for SSO in our apps, we have a one-to-one mapping between keycloak realms and the tenants in our apps, works great and it can glue together many disparate IdP/auth solutions: onelogin, LDAP/AD, etc. At one moment we needed to implement a custom OTP method, so we developed a plugin by implementing a simple SPI (the auth flow is configurable). It is a very stable piece of software, we have a combination of Terraform+ansible scripts to deploy it, and once it is done we forget about it until we need to upgrade the version using the same scripts. The biggest drawback IMHO is the documentation quality ...

jcon321• 4 years ago

have a keycloak dev server been running for 6 years with literally 0 maintenance... it's a well crafted piece of software

offminded• 4 years ago

I had to decide between Keycloak and Supertokens just last week.. Gone through both of their documentation and repos and decided to go with Supertokens. Backend and Frontend flexibility and their instant Discord support to my questions was a huge plus for me.

advaitruia5• 4 years ago

Awesome! One of the project creators here, glad to hear you're having a good experience so far

miovoid2• 4 years ago

It’s Java based :—(

nickserv• 4 years ago

I'm not a big fan of Java personally, as in I would not start a side project with it.

But in this case it's actually a great choice. Static typing, stable, mature, good performance, known by tons of engineers all over the world... And heavily used in the enterprise market which has a very real need for SSO.

sigzero3• 4 years ago

Yup, and to me that's great and goes into the "pros" and not "cons" column.

miovoid2• 4 years ago

It’s Java based :-(

rad_gruchalski• 4 years ago

Went through so many of these systems and keep coming back to keycloak exactly because of its monolithic architecture and authorisation services.

There are so many great things in keycloak, I very much like SPIs and authorisation services (uma2).

seymon• 4 years ago

I which all the keycloak login and email themes would be more flexible and could use custom client attributes, realm settings etc.

Another missing thing is multi tenancy within a realm. Because managing a huge number of realms is a configuration nightmare.

password43214• 4 years ago

Is Keycloak something that is intended to be exposed publicly, or is this something typically used behind a VPN or equivalent protection?

mooreds23• 4 years ago

It depends on what your needs are. If you are using it for CIAM (customer identity and access management) then you are probably going to be putting it on the internet. If using it for internal IAM (identity and access management, also known as workforce identity) you can keep it inside your network.

I believe Keycloak works either way.

password43214• 4 years ago

Thanks. I was mostly wondering how comfortable "Hacker News" is exposing it publicly... going on zero experience and just gut feeling I put it at about the same level as RDP.

vosper2• 4 years ago

Is Keycloak a good option if I want to setup a SAML Service Provider using user records from my own MySQL database? I've looked at Okta and Keycloak and it's not really obvious to whether I'm supposed to give up my User table and let the auth system handle it, or whether the user data ends up being spread between my DB and the auth system (I think that's how Okta would be implemented).

I know I could roll my own with PassportJS or something, but I'd like all the nice Okta stuff (MFA, password policies, SAML SSO, maybe federation) but integrated with my existing DB. Or is that just too much to ask?

mooreds23• 4 years ago

Are you asking if you can use Keycloak with your own user table? Typically these identity providers want to own the user, so would expect you to port the user info, including password hashes, into them.

If you have data that is user related but not auth related (application specific data), I've seen a few patterns:

* Push it all into the auth provider. Not sure about keycloak, but some providers have the ability to store arbitrary data (a blob, basically) about a user.

* Create a table in your database with an identifier provided by Keycloak, preferably an immutable one. Then when a user logs in, you can find their identifier, then look up the application specific data.

If you want to have all PII in one place, the former option is best. If you want to maximize your flexibility, the latter is what I'd suggest.

If you want to keep the user data in your database, I'd look at a library (as you suggest). It's a different class of solution than a standalone auth provider like Keycloak.

vosper2• 4 years ago

Are you asking if you can use Keycloak with your own user table?

Yes, that's what I'm asking. Because my User table has relationships with the rest of my database, and I want to keep that (user X owns application-item Y; User X created Comment Z on application-item Y, etc... you get it).

Create a table in your database with an identifier provided by Keycloak, preferably an immutable one. Then when a user logs in, you can find their identifier, then look up the application specific data.

This looks like a good option to me. I'd be fine with PII in Keycloak, and app-specific stuff in my database, provided there's a solid link between the two. If the user wants to change their email, that goes into Keyclock, and if they do something else that is connected to the application function that goes into the app DB.

Thanks!

amaccuish• 4 years ago

I like Keyloack, but omg it's ridiculously difficult when using the docker container to import a CA cert. May Java Keystore burn in hell.

altonaut• 4 years ago

Is there a minimal config to run and setup keycloak with docker for local development? Most sources suggest exporting and reusing a reale-export.json, but it is missing the user datas and includes lots of (default) options and random uuids. There is a example repo, but it seems out of date and missing some settings: https://github.com/keycloak/keycloak-demo/blob/master/demo-r...

cbsmith• 4 years ago

Odd name... no relation to KeyWhiz? https://square.github.io/keywhiz/

sigzero3• 4 years ago

Is there a comparison somewhere of Keycloak vs ForgeRock AM?

vcryan• 4 years ago

I'm a fan of KeyCloak and use in prod.

My biggest complaint though, is the storage of configuration in a database. This makes deployment complex, because you can't just deploy code, you must also mutate your database on each deploy (in many cases).

I'm looking into a more modern approach, perhaps disallowing any system admin access (only user admin) and requiring all configurations changes to be applied via code using the API... please provide any recommendations for a better approach!

Keycloak: Open-Source Identity and Access Management

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