navarrothiago

#!/usr/bin/env bash
# Installs Go locally, in the current directory
# Usage:
#   ./go-install-locally.sh [GO_VERSION]
# Example:
#   ./install-go.sh 1.16
# The script will install Go 1.16 locally in the current directory.
# The script will only install Go if it is not already installed.
# The script will do nothing if Go is already installed.
main() {

navarrothiago

Using iperf Pods

• Create namespace or project for running iperf tests:

oc new-project iperf-test

• Create server Pod

rm -f pod-iperf-server.yaml 

navarrothiago

#!/usr/bin/env bash
main() {

  git commit -a -m "update ginkgo"
  echo "teste" >> teste
  git commit -a -m "test"
  git push origin-private github-workflow:test-ci -f
  git checkout HEAD~1
  git branch -d github-action
  git switch -c github-action

navarrothiago

bpftool feature probe kernel

1. "bpftool prog show" is used to list all BPF programs currently loaded on the system (loaded != attached)

2. load a BPF program from ELF file “foo.o” to the system and pin it under the BPF virtual file system as “bar”:

# bpftool prog load foo.o /sys/fs/bpf/bar

pinning the program makes it persistent (and offers a handle for later management, e.g. to attach that program to a hook).

navarrothiago

diff --git a/pkg/envoy/envoy.go b/pkg/envoy/envoy.go
index 2cb4f6536..fa6bb2e15 100644
--- a/pkg/envoy/envoy.go
+++ b/pkg/envoy/envoy.go
@@ -209,8 +209,9 @@ func StartEnvoy(stateDir, logPath string, baseID uint64) *Envoy {
 		defer logWriter.Close()
 
 		for {
-			logLevel := logging.GetLevel(logging.DefaultLogger)
-			cmd := exec.Command(ciliumEnvoy, "-l", mapLogLevel(logLevel), "-c", bootstrapPath, "--base-id", strconv.FormatUint(baseID, 10), "--log-format", logFormat)

navarrothiago

for i in $(kubectl exec -n spire spire-server-0 -- /opt/spire/bin/spire-server entry show | grep "Entry ID" | cut -d':' -f2 | cut -d' ' -f2); do kubectl exec -n spire spire-server-0 -- /opt/spire/bin/spire-server entry delete -entryID $i; done

navarrothiago

#!/bin/bash
main() {
	local -r __dirname="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

	DATE=$(date '+%Y-%m-%d-%H%M%S')
	DIR_LOG="${__dirname}"/tmp/logs/cilium
	HOSTNAME=$(cat /proc/sys/kernel/hostname)
	LOG_SYSLINK="${HOSTNAME}"-syslog.txt
	LOG_FILE="${HOSTNAME}"-"${DATE}"-syslog.txt

navarrothiago

#!/bin/bash

# ==============================================
# Author: Thiago Navarro
# email: navarro.ime@gmail.com
#
# Create a grid (panes) for kafka example
# Login k8s1
# https://docs.cilium.io/en/v1.10/gettingstarted/kafka/#gs-kafka
#

navarrothiago

tags: Exército Brasileiro EECN Credenciamento CPG

Orientações para pedido de CPG em EECN no Exército Brasileiro

Autor: Cap QEM Compt Navarro

Este documento tem por finalidade compartilhar a experiência que tive para realizar a inscrição no Curso de Pós-graduação na Universidade de Campinas (UNICAMP) em parceria com o Exército Brasileiro (EB).

Definição

navarrothiago

kubectl delete pods podfoo
kubectl delete pods poddefault
kubectl delete cnp deny-all-egress spiffe-based tls-upgrade