Argo CD Argo CD server disk space full

What is Argo CD Argo CD server disk space full

Understanding Argo CD

Argo CD is a declarative, GitOps continuous delivery tool for Kubernetes. It automates the deployment of the desired application states in the specified target environments. Argo CD monitors applications and compares the live state against the desired state, allowing for automated synchronization and rollback capabilities.

Identifying the Symptom

One common issue that users may encounter is the Argo CD server running out of disk space. This can manifest as errors in the Argo CD UI, failed deployments, or an inability to perform operations that require disk space.

Observed Errors

When the server disk space is full, you might observe errors such as:

"No space left on device" Failed application syncs Inability to write logs or cache data

Root Cause Analysis

The primary cause of this issue is the exhaustion of available disk space on the server hosting Argo CD. This can occur due to excessive log files, large application manifests, or insufficient initial disk allocation.

Impact on Operations

When disk space is full, Argo CD cannot perform essential operations such as logging, syncing applications, or storing necessary data. This can lead to degraded performance or complete service outages.

Steps to Resolve the Issue

To resolve the issue of full disk space on the Argo CD server, follow these steps:

1. Free Up Disk Space

Start by identifying and removing unnecessary files. You can use the following commands to find large files and directories:

du -ah / | sort -n -r | head -n 20

Remove unnecessary log files or temporary files:

rm -rf /var/log/argo-cd/*.log

2. Increase Disk Capacity

If cleaning up files is not sufficient, consider increasing the disk capacity. This can be done by resizing the disk in your cloud provider's console or adding additional storage volumes.

3. Configure Log Rotation

Implement log rotation to prevent logs from consuming excessive disk space. You can configure logrotate on Linux systems:

/etc/logrotate.d/argo-cd { daily missingok rotate 7 compress delaycompress notifempty create 0640 root root}

Further Reading and Resources

For more information on managing disk space and optimizing Argo CD performance, consider the following resources:

Argo CD Official Documentation Kubernetes Logging Best Practices How to Add Swap Space on Ubuntu