kubelogin
rbac-lookup
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kubelogin | rbac-lookup | |
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14 | 3 | |
1,511 | 832 | |
- | 1.9% | |
8.8 | 4.6 | |
1 day ago | 12 days ago | |
Go | Go | |
Apache License 2.0 | Apache License 2.0 |
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kubelogin
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Giving Kyma a little spin ... a SpinKube
Authenticating with Kyma is a (in my opinion) unnecessary challenge as it leverages the OIDC-login plugin for kubectl. You find a description of the setup here. This works fine when on a Mac but can give you some headaches on a Windows and on Linux machine especially when combined with restrictive setups in corporate environments. For Windows I can only recommend installing krew via chocolatey and then install the OIDC plugin via kubectl krew install oidc-login. At least for me that was the only way to get this working on Windows.
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Windows auth with K8s on prem
It is sort of a roundabout way, but I sync Active Directory to a Keycloak realm, then use OIDC auth with kube-oidc-proxy (https://github.com/jetstack/kube-oidc-proxy) and kubelogin (https://github.com/int128/kubelogin) for OIDC-based auth to the api server.
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Kubernetes in production.
Yes, I setup a cluster with no SPFs. That means an HA setup for the external load balancer. I use HAProxy for my ELB, and setup 2 instances with a VRRP + keepalived to provide HA to the ingress controller. I run the control plane private, accessible only from localhost. I setup kube-oidc-proxy (https://github.com/jetstack/kube-oidc-proxy) to expose the API server with single sign-on on the ingress controller, and use the kubelogin plugin (https://github.com/int128/kubelogin) to provide OIDC support to kubectl. I then setup Keycloak to handle OIDC/OAuth2/SAML and syncing to Active Directory, and setup groups in Active Directory to control acccess to clusters. Devs each get their own namespace in the dev cluster, with mostly cluster-admin access to their namespace. Staging/Prod clusters are locked down, with read-only access to devs. Thanks to the OIDC auth to the APIServer, when employees are onboarded & offboarded, we only need to add/remove them from groups in Active Directory and everything else just magically syncs.
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Gitlab token exchange with keycloak to execute deployments with kubectl
I've successfully configured kube-apiserver to authenticate users through oidc (https://github.com/int128/kubelogin) so all the users from my keycloak realm can access to the cluster with their credentials.
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Getting started with kubectl plugins
Link to GitHub Repository
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Why are there so many OIDC SSO options for Kubernetes?
kubelogin (helper for k8s build in OIDC support)
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RBAC MANAGEMENT
I use the kube-login plugin for kubectl (https://github.com/int128/kubelogin) along with the kube-oidc-proxy (https://github.com/jetstack/kube-oidc-proxy), using Keycloak as my OIDC provider (https://www.keycloak.org) and doing LDAP synchronization to Active Directory.
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Manage user authentication in on-prem cluster
Dex oauth and kubelogin. We happen to use google auth in our org, but dex is pretty flexible. You only have to have a way to distribute server certificates. We then have documented script commands to pull certs and create kubectl fig files. OpenUnison always looked interesting, but dex has been good enough for our uses.
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k8s dex authentications
With a working dex/OIDC configuration, you could use: https://github.com/int128/kubelogin
- A kubectl plugin for Kubernetes OpenID Connect (OIDC) authentication
rbac-lookup
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Is there a way to see exactly what permissions the built-in group "system:readonly" has?
try using a tool such as rbac-lookup to find roles attached to a principal name https://github.com/FairwindsOps/rbac-lookup
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Kubernetes Hardening Tutorial Part 3: Authn, Authz, Logging & Auditing
RBAC Lookup is a CLI that allows you to easily find Kubernetes roles and cluster roles bound to any user, service account, or group name. It helps to provide visibility into Kubernetes auth.
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Making Kubernetes Operations Easy with kubectl Plugins
rbac-lookup - Similar to the first plugin we mentioned, this plugin also helps with RBAC in your cluster. This can be used to perform reverse lookup of roles, giving you a list of roles that user, service account or group has assigned. For example, to find roles bound to service account named my-sa you use the following - kubectl rbac-lookup my-sa --kind serviceaccount --output wide.
What are some alternatives?
lens - Lens - The way the world runs Kubernetes
rbac-manager - A Kubernetes operator that simplifies the management of Role Bindings and Service Accounts.
pam-keycloak-oidc - PAM module connecting to Keycloak for user authentication using OpenID Connect/OAuth2, with MFA/2FA/TOTP support
k9s - 🐶 Kubernetes CLI To Manage Your Clusters In Style!
kubectl-neat - Clean up Kubernetes yaml and json output to make it readable
kubectl-kubesec - Security risk analysis for Kubernetes resources
okta-k8s-oidc-terraform-example - An example repo showcasing setting up Okta OIDC using Terraform
rakkess - Review Access - kubectl plugin to show an access matrix for k8s server resources
kubectl-dig - Deep kubernetes visibility from the kubectl
ksniff - Kubectl plugin to ease sniffing on kubernetes pods using tcpdump and wireshark