Argo CD OutOfSync status

The live state of the application does not match the desired state defined in Git.

Understanding Argo CD

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. It automates the deployment of the desired application state from a Git repository to a Kubernetes cluster. By continuously monitoring the state of applications, Argo CD ensures that the live state of applications matches the desired state defined in Git.

Identifying the OutOfSync Status

One common issue users encounter with Argo CD is the OutOfSync status. This status indicates that the live state of the application does not match the desired state defined in the Git repository. This discrepancy can lead to unexpected application behavior and potential downtime.

Symptoms of OutOfSync

When an application is OutOfSync, you might notice:

  • The application status in the Argo CD dashboard is marked as OutOfSync.
  • Differences between the live and desired states when inspecting the application details.
  • Unexpected application behavior due to configuration drift.

Exploring the Root Cause

The primary cause of the OutOfSync status is a mismatch between the live state of the application and the desired state defined in Git. This can occur due to:

  • Manual changes made directly to the Kubernetes cluster.
  • Failed or incomplete sync operations.
  • Changes in the Git repository that have not been applied to the cluster.

Investigating the Issue

To diagnose the OutOfSync status, you can:

  • Check the Argo CD dashboard for detailed information about the differences.
  • Use the argocd app diff command to see the specific differences between the live and desired states.

Resolving the OutOfSync Status

To resolve the OutOfSync status, follow these steps:

Step 1: Perform a Manual Sync

Initiate a manual sync to reconcile the differences:

argocd app sync <app-name>

This command will apply the changes from the Git repository to the Kubernetes cluster, aligning the live state with the desired state.

Step 2: Investigate Persistent Issues

If the application remains OutOfSync after a manual sync, investigate further:

  • Review the application logs for any errors or warnings.
  • Check for any network or permission issues that might prevent successful syncing.

Additional Resources

For more information on resolving OutOfSync issues, consider the following resources:

By following these steps and utilizing the resources provided, you can effectively manage and resolve OutOfSync issues in Argo CD, ensuring your applications remain in the desired state.

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MORE ISSUES

Argo CD Argo CD application sync operation cancelled
The sync operation was cancelled due to user intervention or errors.
Argo CD Argo CD application resource not ready
Resources in the application are not in a ready state, preventing successful sync.
Argo CD Argo CD application sync operation timeout
The sync operation timed out due to long-running processes or resource constraints.
Argo CD Argo CD application sync operation failed
The sync operation failed due to errors in the application manifest or resource conflicts.
Argo CD Argo CD application sync operation pending
The sync operation is pending due to resource constraints or configuration issues.
Argo CD Argo CD application sync retry limit exceeded
The application sync process has exceeded the maximum number of retries.
Argo CD Argo CD server high memory usage
High memory usage due to resource-intensive operations or misconfigurations.
Argo CD Argo CD application not syncing
The application is not syncing due to incorrect sync policy or configuration issues.
Argo CD Argo CD application sync failed
The application sync process failed due to errors in the manifest or resource conflicts.
Argo CD Argo CD application controller not running
The application controller is not running due to crashes or configuration issues.
Argo CD Argo CD server disk space full
The disk space on the Argo CD server is full, preventing normal operations.
Argo CD Argo CD application sync hook error
Errors in the sync hooks prevent the application from syncing successfully.
Argo CD Application resource limit exceeded
The application exceeds the resource limits set in the namespace.
Argo CD Argo CD repository cache error
Errors in the repository cache prevent Argo CD from accessing the latest repository state.
Argo CD Git repository webhook secret mismatch
The webhook secret configured in Argo CD does not match the one in the Git repository.
Argo CD Argo CD repository authentication error
Authentication issues prevent Argo CD from accessing the Git repository.
Argo CD Argo CD server certificate expired
The TLS certificate for the Argo CD server has expired.
Argo CD Argo CD application not found
The specified application does not exist in Argo CD.
Argo CD Application resource drift
Resources in the cluster have drifted from the desired state defined in Git.
Argo CD Argo CD CLI authentication error
Authentication issues prevent the CLI from accessing the Argo CD server.
Argo CD Argo CD server memory leak
Memory leak in the Argo CD server due to application bugs or misconfigurations.
Argo CD Argo CD application controller crash
The application controller crashes due to resource constraints or configuration errors.
Argo CD Application sync policy misconfiguration
Incorrect sync policy settings prevent the application from syncing as expected.
Argo CD Argo CD server high CPU usage
High CPU usage due to resource-intensive operations or misconfigurations.
Argo CD Resource deletion error
Resources cannot be deleted due to finalizer issues or dependencies.
Argo CD Argo CD repository certificate error
Certificate issues prevent Argo CD from accessing the Git repository.
Argo CD Application sync timeout
The application sync process takes too long and times out.
Argo CD Users are unable to access Argo CD resources due to permission errors.
Incorrect RBAC settings prevent users from accessing Argo CD resources.
Argo CD Git repository branch not found
The specified branch in the Git repository does not exist.
Argo CD Application health check failed
The application health checks are failing due to misconfigurations or resource issues.
Argo CD Argo CD API rate limit exceeded
Too many API requests are being made, exceeding the rate limit.
Argo CD Webhooks not triggering
Webhooks are not configured correctly or network issues prevent them from reaching Argo CD.
Argo CD Application rollback error
The application cannot be rolled back due to missing previous versions or errors in the rollback process.
Argo CD Invalid SSH key error
The SSH key used for Git repository access is invalid or incorrectly configured.
Argo CD Resource version conflict
Concurrent updates to a resource result in version conflicts.
Argo CD Argo CD UI not loading
Issues with the Argo CD server or frontend service configuration.
Argo CD Application deletion error
The application cannot be deleted due to finalizer issues or resource dependencies.
Argo CD Argo CD server not reachable
Network issues or incorrect service configuration prevent access to the Argo CD server.
Argo CD Image pull error
The container image cannot be pulled due to incorrect image name or registry access issues.
Argo CD Resource quota exceeded
The application exceeds the resource quotas set in the namespace.
Argo CD Application stuck in 'Progressing' state
The application is unable to complete the sync process due to pending resources or errors.
Argo CD Git repository access error
Argo CD cannot access the specified Git repository due to incorrect credentials or network issues.
Argo CD TLS handshake error
TLS handshake failure between Argo CD and the cluster or Git repository.
Argo CD Helm chart not found
The specified Helm chart repository or chart version is unavailable.
Argo CD Resource not found error
A specified resource in the application manifest does not exist in the cluster.
Argo CD OutOfSync status
The live state of the application does not match the desired state defined in Git.
Argo CD Cluster connection error
Argo CD cannot connect to the Kubernetes cluster due to incorrect cluster configuration or network issues.
Argo CD Unauthorized error
Argo CD does not have the necessary permissions to perform actions on the cluster.
Argo CD Application sync error
The application cannot be synced due to resource conflicts or missing resources.
Argo CD Invalid manifest error
The application manifest contains syntax errors or invalid configurations.

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