tanmay-bhat

version: "3.5"
services:
  fluentbit:
    image: cr.fluentbit.io/fluent/fluent-bit
    ports:
      - "24224:24224"
      - "24224:24224/udp"
    volumes:
      - ./:/fluent-bit/etc/
  flog:

tanmay-bhat

[PARSER]
    Name   apache
    Format regex
    Regex  ^(?<host>[^ ]*) [^ ]* (?<user>[^ ]*) \[(?<time>[^\]]*)\] "(?<method>\S+)(?: +(?<path>[^\"]*?)(?: +\S*)?)?" (?<code>[^ ]*) (?<size>[^ ]*)(?: "(?<referer>[^\"]*)" "(?<agent>[^\"]*)")?$
    Time_Key time
    Time_Format %d/%b/%Y:%H:%M:%S %z
 
[PARSER]
    Name   nginx
    Format regex

tanmay-bhat

sed -i '/^old-value /s/=.*$/=new-value/' file-name

---

Example

cat terraform.tfvars.example project_id = "gcp-123"

tanmay-bhat

1. Exec into any of the metric beat pod ( part of daemon set ) :

kubectl exec -it <metricbeat-pod-name> bash -n <namespace>

2. Run the below command :

./metricbeat setup --dashboards -E setup.kibana.host=kibana-kibana:5601

tanmay-bhat

#!/bin/bash

set -eu

if ! command -v ssh-keygen &> /dev/null ;then
    echo "Cant seem to find 'ssh-keygen' binary, are you sure its installed ?"
    exit 1
fi
if ! command -v ssh &> /dev/null ;then
    echo "Cant seem to find 'ssh' binary, are you sure its installed ?"

tanmay-bhat

rbac:
  create: false

podSecurityPolicy:
  enabled: false

imagePullSecrets:
# - name: "image-pull-secret"

## Define serviceAccount names for components. Defaults to component's fully qualified name.

tanmay-bhat

Sample scenario :

How to exclude a specific mount-point value of a specific host in a metric node_filesystem_free_bytes ?

node_filesystem_free_bytes{} unless node_filesystem_free_bytes{instance="10.10.0.1",mountpoint="/dir"}

The above query will show available bytes of all hosts & mountpoints except mountpoint /dir on 10.10.0.1

---

Stackoverflow answer : Link

tanmay-bhat

### ALert Configuration

      - alert: KubePodReadinessFailure
        annotations:
          description: Readiness probe for the Pod {{ $labels.pod }} is failing for last 10 minutes
        expr: sum by(pod)( kube_pod_info{created_by_kind!="Job"} AND ON (pod, namespace) kube_pod_status_ready{condition="false"} == 1) > 0
        for: 10m
        labels:
          severity: warning

tanmay-bhat

version: '3.8'

services:
  node-exporter:
    image: prom/node-exporter:latest
    container_name: node-exporter
    restart: unless-stopped
    volumes:
      - /proc:/host/proc:ro
      - /sys:/host/sys:ro

tanmay-bhat

> docker images

REPOSITORY                                           TAG       IMAGE ID       CREATED         SIZE
registry.digitalocean.com/tanmaybhat/kube-ops-view   latest    a645de6a07a3   21 months ago   253MB
registry.digitalocean.com/tanmaybhat/kube-ops-view   v1.2.3    a645de6a07a3   21 months ago   253MB

> docker tag registry.digitalocean.com/tanmaybhat/kube-ops-view:latest registry.digitalocean.com/tanmaybhat/kube-ops-view:v1.2.4

> docker images