Kubernetes auth: X509 client certificates
However, that resulted in a X. Thus, changed the hostname to juju-apiserver and defined a new cloud with juju add-cloudcloud type manual and juju-apiserver as hostname for the controller:. The juju documentation on setting up a manual cloud doesn't mention any certificate setups. Which ones might be missing here, though? Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 10 days ago.Digital Certificates: Chain of Trust
Active 10 days ago. Viewed 22 times. There are more clouds, use --all to see them. You can bootstrap a new controller using one of these clouds Active Oldest Votes. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name.
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I'm trying some basic examples to request data from the web, however all requests to different hosts result in an SSL error: x certificate signed by unknown authority. Note : I'm not behind a proxy and no forms of certificate interception is happening, as using curl or the browser works without problems. It's likely that you will have to install ca-certificates on the machine your program is running on.
Learn more. Asked 2 years, 8 months ago. Active 1 year, 5 months ago. Viewed 3k times. ReadAll response. Body if err! Maico Timmerman. Maico Timmerman Maico Timmerman 2 2 silver badges 7 7 bronze badges. Your code runs perfectly on my local machine. Are you running the directly in the machine or inside any container? I'm running Arch Linux kernel version 4. Code is working fine on any other machine, however not on this machine. MaicoTimmerman How did you solve that?GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
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Contributor Author. PR merged. Another flavour of this on the same task is as follows Error: client: etcd cluster is unavailable or misconfigured; error 0: Tunnel or SSL Forbidden.
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment. Linked pull requests. You signed in with another tab or window. Reload to refresh your session. You signed out in another tab or window.But another common way of authentication is to make use of X client certificates. In this blog post I will explain a bit about X client certificates as well as demonstrate how to set them up for use in your Kubernetes cluster. In contrast to the other authentication methods, using client certificates for authentication uses public key cryptography for authentication instead of passwords or tokens.
Kubernetes has no user storage itself, therefore the identity must come from the chosen authentication mean. For example if you were to choose Open ID Connectthen the OIDC providers stores this information, and on authentication requests returns the respective user, which Kubernetes then uses to perform authorization.
X client certificates fit that use case perfectly, as the content is signed by the Kubernetes cluster certificate authority and the Kubernetes apiserver only has to verify that the signature is legitimate. This means the user and group specified in the certificate are used once the signature is verified - no storage required. Using this information one can then give a group or a user specific permission, using RBAC.
This is how an example ClusterRole manifest, that has read-only permissions for all Pods and Namespaces would look like:. Now to give a user these permissions, a ClusterRoleBinding has to be created. That was easy enough.
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I have written a small script to automate the process. As a result the kubeconfig is ready to be used with the Kubernetes cluster. Note: This script was written to be run on Fedora 26, there may be slight incompatibilities across distributions. Make sure to adapt the paths to your certificate authority if they are different. The content of this blog post works on Kubernetes 1.
The dark mode beta is finally here. Change your preferences any time. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I feel like I should somehow specify the path to the certificate but unlike the Python SDk the one for go does not mention that anywhere. I also added my credentials via the AWS Cli so that should not be the issue. Found the mistake: xxxxxxxxxx. Learn more. Asked 2 days ago. Active 2 days ago. Viewed 21 times.
String "eu-central-1"Endpoint: aws. String "xxxxxxxxxx. Publish input if err! EmilS EmilS 1. New contributor. Active Oldest Votes. EmilS is a new contributor. Be nice, and check out our Code of Conduct. Sign up or log in Sign up using Google. Sign up using Facebook. Sign up using Email and Password. Post as a guest Name. Email Required, but never shown. The Overflow Blog. The Overflow How many jobs can be done at home?
Sam's Answer may get you working, but is NOT a good idea for production. For clarity I will try to explain why you are getting this. It is NOT enough to create a set of encryption keys used to sign certificates. Anyone, and you just did, can do this. This is why there are "Trusted certificate authorities" These are entities that known and trusted. An ssl implementation comes with a list of authorities and their public keys to verify that certificates claimed to be signed by them are in fact from them and not someone else claiming to be them.
So when you create your own, any ssl implementation will see that indeed a certificate is signed by you, but they do not know you can be trusted so unless you add you CA certificate Authority to the list of trusted ones it will refuse it. SSL is not just about encrypting messages but also verifying that the person you are talking to or the person that has cyptographically signed something IS who they say they are. IT IS NOT a good idea to wholesale "skip", "bypass" or what not the verification in production as it will accept certificates from anyone, making you vulnerable to impersonation, or man in the middle attacks.
Your problem is NOT with your certificate creation but you configuration of your ssl client. It very clearly told you it refused to connect because it does not know who it is talking to.
You must setup your certificate authority as a trusted one on the clients. This is dependent on your setup so more details are needed to help you there. These are another question that try to tackle that issue:. Adding a self signed certificate to the trusted list. Add self signed certificate to Ubuntu for use with curl. Note this will work ONLY for you, if you have third party clients that will be talking they will all refuse your certificated for the same reason, and will have to make the same adjustments.
So if you pay them to do this, the resulting certificate will be trusted by everyone. Can you try a workaround using -tls-skip-verifywhich should bypass the error. However, this is only a temp. Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 1 year, 11 months ago. Active 1 year, 11 months ago.