port-forward | Go语言开发的端口转发工具 for port data
kandi X-RAY | port-forward Summary
kandi X-RAY | port-forward Summary
Go语言开发的端口转发工具 for port data forward (TavenLi 李锡远)
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QUESTION
I'm trying to access my ETCD database from a K8s controller, but getting rpc error/EOF when trying to open ETCD client.
My setup:
- ETCD service is deployed in my K8s cluster and included in my Istio service mesh (its DNS record:
my-etcd-cluster.my-etcd-namespace.svc.cluster.local
) - I have a custom K8s controller developed with use of Kubebuilder framework and deployed in the same cluster, different namespace, but configured to be a part of the same Istio service mesh
- I'm trying to connect to ETCD database from the controller, using Go client SDK library for ETCD
Here's my affected Go code:
...ANSWER
Answered 2022-Mar-21 at 08:25Turned out to be version mismatch - my ETCD db is v3.5.2 and the clientv3 library that I used was v3.5.0. As seen in ETCD changelog (https://github.com/etcd-io/etcd/blob/main/CHANGELOG/CHANGELOG-3.5.md):
QUESTION
I'm experimenting with kubernetes and a minio deployment. I have a k3s 4 node cluster, each one with 4 50GB disk. Following the instructions here I have done this:
First I installed krew in order to install the minio and the directpv operators.
I installed those two without a problem.
I formatted every Available hdd in the node using
kubectl directpv drives format --drives /dev/vd{b...e} --nodes k3s{1...4}
I then proceed to make the deployment, first I create the namespace with
kubectl create namespace minio-tenant-1
, and then I actually create the tenant with:kubectl minio tenant create minio-tenant-1 --servers 4 --volumes 8 --capacity 10Gi --storage-class direct-csi-min-io --namespace minio-tenant-1
The only thing I need to do then is expose the port to access, which I do with:
kubectl port-forward service/minio 443:443
(I'm guessing it should be a better way to achieve this, as the last command isn't apparently permanent, maybe using a LoadBalancer or NodePort type services in the kubernetes cluster).
So far so good, but I'm facing some problems:
- When I try to create an alias to the server using mc the prompt answer me back with:
mc: Unable to initialize new alias from the provided credentials. Get "https://127.0.0.1/probe-bucket-sign-9aplsepjlq65/?location=": x509: cannot validate certificate for 127.0.0.1 because it doesn't contain any IP SANs
I can surpass this with simply adding the --insecure
option, but I don't know why it throws me this error, I guess is something how k3s manage the TLS auto-signed certificates.
Once created the alias (I named it test) of the server with the
--insecure
option I try to create a bucket, but the server always answer me back with:mc mb test/hello
mc: Unable to make bucket \test/hello. The specified bucket does not exist.
So... I can't really use it... Any help will be appreciated, I need to know what I'm doing wrong.
...ANSWER
Answered 2022-Mar-14 at 13:32Guided by information at the Minio documentation. You have to generate a public certificate. First of all generate a private key use command:
QUESTION
I have a service running in Kubernetes and currently, there are two ways of making GET requests to the REST API.
The first is
...ANSWER
Answered 2022-Jan-28 at 11:21This should be something which uses:
QUESTION
I'm at school and in on Campus housing which means I don't have access to the router to get the admin password to allow me to port-forward my website for my senior Capstone. I would like to know how to host a server that I can insert a MySql database, as well as my sight files from my own machine; how would I even go about getting around this without port forwarding?
There is an "Open Windows Firewall Ports for network access" embedded within MySQL Server download prosses theoretically if clicked would it allow me to embed a Website within MySQL Server and host it?? or would that just allow my database to be assessable threw my vulnerable network.
...ANSWER
Answered 2022-Jan-27 at 22:57One solution would be to use reverse proxy services like https://pagekite.net/
QUESTION
trying to open Postgres port 5432
so it can be accessible from my local machine. the port is only open from kubernetes pods.
ANSWER
Answered 2022-Jan-18 at 22:09Try this:
kubectl port-forward -n pod/pod-5bf5c7df9b-xcjsf 5432:5432
Note the differences:
- Namespace needs to be specified if not
default
- I usually prefix the pod name with
pod/
- The local port 5432 connects to the k8s cluster on port 5432
In addition, it's best practice to port-forward to the service instead of the pod. For example: kubectl port-forward -n namespace svc/service-name 5432:5432
since pod names change but the service name does NOT. And, remember that the service port is usually 5432 but the pod may not listen on that port.
I hope this helps. I work for CodeZero and we allow you to easily connect with cluster resources with our teleport feature. Check it out at https://codezero.io
You can also use CodeZero CLI (czctl) to teleport into the cluster and then you can access kubernetes resources locally:
QUESTION
Not sure if this is OS specific, but on my M1 Mac, I'm installing the Nginx controller and resource example located in the official Quick Start guide for the controller. for Docker Desktop for Mac. The instructions are as follows:
...ANSWER
Answered 2022-Jan-03 at 16:11I replicated your issue and got a similar behaviour on the Ubuntu 20.04.3 OS.
The problem is that NGINX Ingress controller Local testing guide did not mention that demo.localdev.me
address points to 127.0.0.1
- that's why it works without editing /etc/hosts
or /etc/resolve.conf
file. Probably it's something like *.localtest.me
addresses:
Here’s how it works. The entire domain name localtest.me—and all wildcard entries—point to 127.0.0.1. So without any changes to your host file you can immediate start testing with a local URL.
Also good and detailed explanation in this topic.
So Docker Desktop / Kubernetes change nothing on your host.
The address demo2.localdev.me
also points to 127.0.0.1
, so it should work as well for you - and as I tested in my environment the behaviour was exactly the same as for the demo.localdev.me
.
You may run nslookup
command and check which IP address is pointed to the specific domain name, for example:
QUESTION
to all the Cloud-init experts:
Recently, I've been trying to play around with cloud-init's capabilities for user account creation and management.
I wanted to forbid root ssh login and to create another sudo user that needs no password for sudo.
I do get the desired result, but I do not know how is it implemented.
Sample config.cfg:
...ANSWER
Answered 2021-Dec-13 at 14:52The SSH custom message is written to /root/.ssh/authorized_keys
. On an ubuntu system it should contain something like
QUESTION
I created a nginx ingress using this link using docker-desktop.
...ANSWER
Answered 2021-Dec-06 at 23:38this is because the prefix /assinaturas
need to be omitted by an Nginx rewrite.. And that's explain why you got 404 (not found):
QUESTION
I have a k0s Kubernetes cluster on a single node. I am trying to run a selenium/standalone-chrome
to create a remote Selenium node. The trouble that I am having is that it responds if I port forward 4444
from the pod, but cannot seem to access it via a Service port. I get connection refused. I don't know if it's because it's ignore connections that non-localhost.
The Pod
definition for pod/standalone-chrome
is:
ANSWER
Answered 2021-Nov-23 at 11:14Service's syntax with:
QUESTION
I have a script that creates users with specific access.
the script runs the following commands:
...ANSWER
Answered 2021-Nov-17 at 20:49The error message state the following:
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