Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. It automates the deployment of desired application states to Kubernetes clusters, ensuring that the live state matches the desired state defined in Git repositories. This tool is essential for managing and automating application deployments, making it easier for developers to maintain consistency across environments.
When using the Argo CD CLI, you might encounter an authentication error that prevents you from accessing the Argo CD server. This issue typically manifests as an error message indicating that the CLI cannot authenticate with the server, which can halt your deployment processes and disrupt your workflow.
FATA[0000] rpc error: code = Unauthenticated desc = invalid sessionFATA[0000] failed to authenticate: invalid username or passwordThe primary cause of this issue is incorrect or outdated authentication credentials being used by the CLI to connect to the Argo CD server. This can occur if the credentials have been changed, expired, or were never correctly configured. Additionally, network issues or server misconfigurations can also lead to authentication failures.
To resolve the Argo CD CLI authentication error, follow these steps:
argocd login --username --password
argocd login --auth-token
ping or curl to test connectivity to the server.For more detailed information, refer to the official Argo CD CLI Usage Guide and the Argo CD Troubleshooting Guide.
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