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Category: Kubernetes & Container

[Kong Gateway] WebSocket connection failed

Posted on March 26, 2023 By nim No Comments on [Kong Gateway] WebSocket connection failed
[Kong Gateway] WebSocket connection failed

WebSocket connection to ‘wss://k8s.nimtechnology.com/v3/subscribe?sockId=1’ failed:

Kong Gateway

[Datadog] Using DataDog to monitor all services on kubernetes

Posted on March 19, 2023March 23, 2023 By nim No Comments on [Datadog] Using DataDog to monitor all services on kubernetes
[Datadog] Using DataDog to monitor all services on kubernetes

Nếu công ty của bạn giàu và yêu cầu bạn phải sử dụng datadog thì Let’s do it. 1) Install DataDog on Kubernetes. Install DataDog via helm. Value file: Vì để datadog chất nhận data của bạn gửi lên datadog.thì apiKey là thử quan trong nhất. Và các bạn có thể tham khảo full value…

Read More “[Datadog] Using DataDog to monitor all services on kubernetes” »

DataDog, Kubernetes & Container

[Metrics Server] Failed to make webhook authorizer request: the server could not find the requested resource

Posted on March 17, 2023March 17, 2023 By nim No Comments on [Metrics Server] Failed to make webhook authorizer request: the server could not find the requested resource
[Metrics Server] Failed to make webhook authorizer request: the server could not find the requested resource

Sau khi upgrade k8s lên version 1.23 thì mình bắt đầu gặp lỗi trong HPA không mấy được cpu utilization Không lấy được memory utilization Trong log của con metrics-server trong namespace: kube-sysem How to fix the issue. Apply version mới nhất của metrics-server.https://github.com/kubernetes-sigs/metrics-server/releases

Kubernetes

[kubernetes/client-go] Go clients for talking to a kubernetes cluster.

Posted on March 3, 2023 By nim No Comments on [kubernetes/client-go] Go clients for talking to a kubernetes cluster.
[kubernetes/client-go] Go clients for talking to a kubernetes cluster.

Nếu Sếp bảo bạn giờ anh muốn em code 1 script restart pod trên k8s khi nó bị freeze.Còn làm sao biết là pod đó bị freeze thì call vào 1 enpoint. Chà viêt Script hả ta. No No em code GO. Bạn có thể tham khảo Đây là code của anh trai: Code của…

Read More “[kubernetes/client-go] Go clients for talking to a kubernetes cluster.” »

Golang, Kubernetes

[Metallb] Create LoadBalancer Service on K8S (on-premise) so easily

Posted on February 20, 2023March 20, 2023 By nim No Comments on [Metallb] Create LoadBalancer Service on K8S (on-premise) so easily
[Metallb] Create LoadBalancer Service on K8S (on-premise) so easily

Hiện tại phiên bản v0.13.x có 1 breakchange, but cũng rất dễ dàng setup. https://metallb.universe.tf/ Đây là các config mẫu.Bạn cần chọn ra 1 range IP cho loadbalancer.

Ingress, Kubernetes, MetalLB

[ingress-nginx] ingress /contains invalid path

Posted on February 15, 2023February 15, 2023 By nim No Comments on [ingress-nginx] ingress /contains invalid path
[ingress-nginx] ingress /contains invalid path

Vừa qua mình gặp mội lỗi trên ingress nginx khi tạo ingress cho rancherkhi vào trong thì bị 404 và log trong ingress controller như dưới mình có đọc bài này:https://stackoverflow.com/questions/64946195/invalid-value-for-nginx-path

Ingress

[Helmify] CLI that creates Helm charts from Kubernetes yamls.

Posted on February 8, 2023March 20, 2023 By nim No Comments on [Helmify] CLI that creates Helm charts from Kubernetes yamls.
[Helmify] CLI that creates Helm charts from Kubernetes yamls.

Helmify là một công cụ mã nguồn mở dùng để convert các file YAML thành chart Helm cho Kubernetes. Nó hỗ trợ việc quản lý các file YAML trong môi trường phân tán và automation trong quá trình setting up và phát triển. Helmify cũng cho phép anh em dễ dàng chỉnh sửa các file…

Read More “[Helmify] CLI that creates Helm charts from Kubernetes yamls.” »

Helm Chart, Kubernetes

[Linux] How to Check Disk Performance (IOPS and Latency) in Linux?

Posted on February 8, 2023February 17, 2023 By nim No Comments on [Linux] How to Check Disk Performance (IOPS and Latency) in Linux?
[Linux] How to Check Disk Performance (IOPS and Latency) in Linux?

Mình đã hỏi chat GPT và nó chỉ mình như sau: 1. Monitor I/O Performance Using ‘iostat’ Command: The first and most straightforward way to check disk performance in Linux is to use the ‘iostat’ utility to monitor I/O performance. ‘iostat’ can be used to monitor the I/O statistics of both CPUs and storage devices…

Read More “[Linux] How to Check Disk Performance (IOPS and Latency) in Linux?” »

Kubernetes & Container

[Sonarqube] Install Sonarqube on Kubernetes and integrate with GitHub Action.

Posted on February 5, 2023 By nim No Comments on [Sonarqube] Install Sonarqube on Kubernetes and integrate with GitHub Action.
[Sonarqube] Install Sonarqube on Kubernetes and integrate with GitHub Action.

1) Installing Sonarqube on Kubernetes To install the chart: Helm values: Nếu bạn cần tạo ingress cho Sonarqube. 2) Integrate GitHub Action with Sonarqube. 2.1) Create a Token on Sonarqube 2.2) Create a project on Sonarqube. 2.3) Set up GitHub Action. Nếu bạn chưa quen với github action thì có thể tham khảo:https://nimtechnology.com/2022/12/21/github-action-lets-use-github-action-to-build-and-push-the-docker-image-to-the-docker-hub/ tiếp đến…

Read More “[Sonarqube] Install Sonarqube on Kubernetes and integrate with GitHub Action.” »

Kubernetes & Container

[Helm/Github] Create a public Helm chart repository with GitHub Pages

Posted on January 8, 2023January 8, 2023 By nim No Comments on [Helm/Github] Create a public Helm chart repository with GitHub Pages
[Helm/Github] Create a public Helm chart repository with GitHub Pages

Đầu tiền bạn cần tạo 1 repo: Thực hiện các lệnh bên dưới: I’d like to avoid bot crawling on my repository, so I add the following robots.txt file: Tạo helm chart: Sau đó bạn chỉnh sửa template và recheck template Khi template đã ngon thì thực hiện tạo package

Helm Chart

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  • [Datadog] Using DataDog to monitor all services on kubernetes March 19, 2023
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