Argo CD a fundo como funciona o GitOps na prática

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O Argo CD resolve um problema simples e caro: garantir que o que está rodando no Kubernetes é exatamente o que está versionado no Git. Ele é um controlador declarativo de entrega contínua (CD) para Kubernetes, mantido pela comunidade Argo e projeto graduado da CNCF. Sem uma ferramenta assim, o fluxo típico é um pipeline de CI que termina com kubectl apply ou helm upgrade contra o cluster. Isso funciona até o dia em que alguém altera um recurso na mão, o pipeline falha pela metade ou o cluster perde o estado e ninguém sabe qual era a versão "correta". É o chamado configuration drift.

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