feat: adicionar aula-16 (Flagger), remover Jaeger da aula-14 e integrar tracing Istio na aula-15
- aula-16: nova aula de canary deployment automatizado com Flagger - aula-14: removido Jaeger (tracing movido para aula-15), corrigido nome do serviço Victoria Metrics, adicionado rate limiting no Kiali - aula-15: adicionado receiver Zipkin no OTel Collector para receber traces do Istio, corrigida porta do Tempo (3100→3200), integração automática com Istio quando detectado - aula-03: corrigido MAX_REQUESTS de 10 para 3 (valor padrão) - CLAUDE.md: adicionada aula-16 na documentação
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ArgoCD Setup
Executable
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#!/bin/bash
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# ============================================================================
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# Aula 16 - Cleanup do Flagger
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# ============================================================================
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# Remove o Flagger e reverte as configurações de canary.
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# NÃO remove o Istio (aula-14) nem o Victoria Metrics (aula-12).
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# ============================================================================
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set -e
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RED='\033[0;31m'
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GREEN='\033[0;32m'
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YELLOW='\033[1;33m'
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BLUE='\033[0;34m'
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CYAN='\033[0;36m'
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NC='\033[0m'
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log_info() { echo -e "${BLUE}[INFO]${NC} $1"; }
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log_success() { echo -e "${GREEN}[OK]${NC} $1"; }
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log_warn() { echo -e "${YELLOW}[WARN]${NC} $1"; }
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log_error() { echo -e "${RED}[ERRO]${NC} $1"; }
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SCRIPT_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
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echo ""
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echo -e "${CYAN}╔═══════════════════════════════════════════════════════════╗${NC}"
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echo -e "${CYAN}║ Cleanup - Aula 16 (Flagger) ║${NC}"
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echo -e "${CYAN}╚═══════════════════════════════════════════════════════════╝${NC}"
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echo ""
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echo -e "${YELLOW}Isso vai remover:${NC}"
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echo " - Flagger Loadtester (streamify-production)"
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echo " - Flagger Controller (istio-system)"
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echo " - Flagger CRDs"
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echo " - VMPodScrapes do Istio"
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echo " - PeerAuthentication"
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echo " - Label istio-injection do namespace"
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echo ""
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echo -e "${YELLOW}NÃO vai remover:${NC}"
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echo " - Istio (aula-14)"
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echo " - Victoria Metrics (aula-12)"
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echo " - Mudanças no Helm chart (reverter manualmente no repo streamify-deploy)"
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echo ""
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read -p "Confirmar remoção? (digite 'sim'): " confirm
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if [[ "$confirm" != "sim" ]]; then
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echo "Cancelado."
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exit 0
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fi
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echo ""
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# 1. Remover Loadtester
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log_info "Removendo Flagger Loadtester..."
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helm uninstall flagger-loadtester -n streamify-production --wait 2>/dev/null || true
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log_success "Loadtester removido"
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# 2. Remover Canary CRD resource (para Flagger devolver controle do deployment)
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log_info "Removendo Canary resources..."
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kubectl delete canary --all -n streamify-production --ignore-not-found=true 2>/dev/null || true
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log_success "Canary resources removidos"
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# 3. Aguardar Flagger restaurar o deployment original
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log_info "Aguardando restauração do deployment..."
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sleep 10
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# 4. Remover Flagger
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log_info "Removendo Flagger..."
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helm uninstall flagger -n istio-system --wait 2>/dev/null || true
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log_success "Flagger removido"
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# 5. Remover CRDs
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log_info "Removendo Flagger CRDs..."
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kubectl delete crd canaries.flagger.app metrictemplates.flagger.app alertproviders.flagger.app 2>/dev/null || true
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log_success "CRDs removidos"
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# 6. Remover VMPodScrapes
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log_info "Removendo VMPodScrapes do Istio..."
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kubectl delete vmpodscrape envoy-stats istiod -n monitoring --ignore-not-found=true 2>/dev/null || true
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log_success "VMPodScrapes removidos"
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# 7. Remover PeerAuthentication
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log_info "Removendo PeerAuthentication..."
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kubectl delete peerauthentication default -n streamify-production --ignore-not-found=true 2>/dev/null || true
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log_success "PeerAuthentication removida"
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# 8. Remover label de sidecar injection
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log_info "Removendo label istio-injection..."
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kubectl label namespace streamify-production istio-injection- 2>/dev/null || true
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log_success "Label removida"
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# 9. Reiniciar pods para remover sidecars
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log_info "Reiniciando deployments para remover sidecars..."
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kubectl rollout restart deployment -n streamify-production 2>/dev/null || true
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kubectl rollout status deployment/streamify-production-web -n streamify-production --timeout=300s 2>/dev/null || true
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log_success "Sidecars removidos"
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# 10. Limpar VirtualService e DestinationRule órfãos
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log_info "Removendo VirtualServices e DestinationRules órfãos..."
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kubectl delete virtualservice --all -n streamify-production --ignore-not-found=true 2>/dev/null || true
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kubectl delete destinationrule --all -n streamify-production --ignore-not-found=true 2>/dev/null || true
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log_success "Recursos Istio limpos"
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# 11. Remover .env
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read -p "Remover arquivo .env? [s/N]: " remove_env
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if [[ "$remove_env" == "s" || "$remove_env" == "S" ]]; then
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rm -f "${SCRIPT_DIR}/.env"
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log_success ".env removido"
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fi
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echo ""
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echo -e "${GREEN}Cleanup concluído!${NC}"
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echo ""
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echo -e "${YELLOW}Lembrete:${NC} Para reverter as mudanças no Helm chart:"
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echo " 1. Remova canary.enabled do values-production.yaml"
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echo " 2. Remova o template canary.yaml"
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echo " 3. Reverta a linha do ingress.yaml (remova o sufixo -primary)"
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echo " 4. Commit e push no repo streamify-deploy"
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echo ""
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