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Category: Log, Monitor & Tracing

[DataDog] How does DataDog collect metrics from the Prometheus exporter endpoint

Posted on April 5, 2023July 10, 2023 By nim No Comments on [DataDog] How does DataDog collect metrics from the Prometheus exporter endpoint
[DataDog] How does DataDog collect metrics from the Prometheus exporter endpoint

1) Introduce the design architecture Mô hình bạn có thể thấy như hình bên dưới. Thì mình dùng datadog agent trên k8s để collect metrics của cloudwatchNhưng mà datadog agent không để đọc trực tiếp vào Cloudwatch nên mình sẽ sử dụng 1 opensource của prometheus là prometheus cloudwatch exporter để get metrics từ cloud…

Read More “[DataDog] How does DataDog collect metrics from the Prometheus exporter endpoint” »

DataDog, Prometheus

[Datadog/Tracing] Apply the tracing datadog for PHP or WordPress.

Posted on April 4, 2023April 4, 2023 By nim No Comments on [Datadog/Tracing] Apply the tracing datadog for PHP or WordPress.
[Datadog/Tracing] Apply the tracing datadog for PHP or WordPress.

1) Configure the datadog agent to receive the APM data. Như mình đã nói thì datadog cho chúng ta free.Và hiện tại mình đang dụng datadog để monitor cluster k8s(home lab), log (stdout). tiếp mình sẽ setup tracing trên datadog. Enable datadog via helm chart. thì chúng ta sẽ cần phải config helm như sau…

Read More “[Datadog/Tracing] Apply the tracing datadog for PHP or WordPress.” »

DataDog

[Promethues] Install Prometheus Operator on Kubernetes.

Posted on April 2, 2023August 29, 2023 By nim No Comments on [Promethues] Install Prometheus Operator on Kubernetes.
[Promethues] Install Prometheus Operator on Kubernetes.

1) the preparing before install Prometheus Operator Đầu tiên thì bạn cần cài đặt trước các CustomResourceDefinition REPO URL: https://prometheus-community.github.io/helm-chartsCHART: prometheus-operator-crds:2.0.0 We need to press the sync button I am sure that you also have a problem with prometheuses.monitoring.coreos.comThis message: “CustomResourceDefinition.apiextensions.k8s.io “prometheuses.monitoring.coreos.com” is invalid: metadata.annotations: Too long: must have at most 262144 bytes“ Don’t be…

Read More “[Promethues] Install Prometheus Operator on Kubernetes.” »

Prometheus

[windows-exporter] Monitor the windows Kubernetes.

Posted on April 2, 2023 By nim No Comments on [windows-exporter] Monitor the windows Kubernetes.
[windows-exporter] Monitor the windows Kubernetes.

Hiện tại thì mỉnh sử dụng windows-exporter để monitor windows k8s.https://github.com/prometheus-community/windows_exporter Để integrate với windows_exporter thì bạn nên cài trước prometheus_operator. Mình đang test trên eks 1.24 1) Install the component of windows exporter. https://github.com/prometheus-community/windows_exporter/blob/master/kubernetes/windows-exporter-daemonset.yaml Lúc này thì trên prometheus-operator đang nhận được metrics của windows-exporter. https://grafana.com/grafana/dashboards/17264-windows-exporter-for-prometheus-dashboard-en-v20221026/ Hiện tại mình chỉ thấy là nó monitor…

Read More “[windows-exporter] Monitor the windows Kubernetes.” »

Prometheus

[Prometheus/Grafana] Install Prometheus and Grafana on ubuntu.

Posted on March 27, 2023 By nim No Comments on [Prometheus/Grafana] Install Prometheus and Grafana on ubuntu.
[Prometheus/Grafana] Install Prometheus and Grafana on ubuntu.

Sau đó bạn download chương trình Prometheus về để chạy. Việc download khá đơn giản, bạn chỉ cần truy cập link sau : https://prometheus.io/download/ Giải nén file package Prometheus vừa download. Tạo user để chạy dịch vụ Prometheus. Tạo thư mục cấu hình và data cho Prometheus. Sau đó phân quyền owner tương ứng. Copy…

Read More “[Prometheus/Grafana] Install Prometheus and Grafana on ubuntu.” »

BareMetal, Grafana, Prometheus

[Datadog] Using DataDog to monitor all services on kubernetes

Posted on March 19, 2023April 25, 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

[Elasticsearch] reason=Validation Failed: 1: this action would add [10] total shards, but this cluster currently has [1000]/[1000] maximum shards open;]]]

Posted on September 20, 2022 By nim No Comments on [Elasticsearch] reason=Validation Failed: 1: this action would add [10] total shards, but this cluster currently has [1000]/[1000] maximum shards open;]]]
[Elasticsearch] reason=Validation Failed: 1: this action would add [10] total shards, but this cluster currently has [1000]/[1000] maximum shards open;]]]

Nếu bạn bị lỗibut this cluster currently has [1000]/[1000] maximum shards open tham khảo link bên dướihttps://www.elastic.co/guide/en/elasticsearch/reference/current/size-your-shards.html#_this_action_would_add_x_total_shards_but_this_cluster_currently_has_yz_maximum_shards_open

ELK

[Grafana] Error updating options: origin not allowed when you upgrade the Grafana.

Posted on May 8, 2022 By nim No Comments on [Grafana] Error updating options: origin not allowed when you upgrade the Grafana.
[Grafana] Error updating options: origin not allowed when you upgrade the Grafana.

Sau khi upgrade grafana lên version 8.5.2 thì mình bị lỗi Mình đọc thì vấn đề này sẽ xảy ra khi bạn public grafana thông qua 1 proxy: nginx, haproxy, Kong-Gateway. Nếu bạn sài nginx.proxy_set_header Host $http_host; Nếu bạn sài Apache2: ProxyPreserveHost On Sài Kong-gateway, Kong, Kong-api thì mình chỉ trên Konga như sauVào route và…

Read More “[Grafana] Error updating options: origin not allowed when you upgrade the Grafana.” »

Grafana

[Grafana] Reset passwork grafana

Posted on April 6, 2022 By nim No Comments on [Grafana] Reset passwork grafana
[Grafana] Reset passwork grafana

grafana-cli admin reset-admin-password <new password> resets the password for the admin user using the CLI. You might need to do this if you lose the admin password.

Grafana

[OpenVPN] How do you monitor Your OpenVPN-Server via Prometheus and Grafana

Posted on March 29, 2022March 30, 2022 By nim No Comments on [OpenVPN] How do you monitor Your OpenVPN-Server via Prometheus and Grafana
[OpenVPN] How do you monitor Your OpenVPN-Server via Prometheus and Grafana

Sau bao ngày chạy Openvpn thì cuồi cùng đã monitor được https://kifarunix.com/monitor-openvpn-connections-with-prometheus-and-grafana/ 1) Install Golang 1.1) Raspberry (chipset armvX) 1.2) Ubuntu (not chipset armvX) 2) Download openvpn_exporter and config Bạn nhớ kiểm tra file log status của bạn ở đâu nhé GIờ tiến hành build file. The suggestion of @Burak Serdar to re-install Go fixed…

Read More “[OpenVPN] How do you monitor Your OpenVPN-Server via Prometheus and Grafana” »

Grafana, Log, Monitor & Tracing, Prometheus

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