The `cloudflared update` command is used to update the `cloudflared` daemon to the latest available version. This command checks for a newer version of `cloudflared` from Cloudflare's official repositories and, if found, downloads and replaces the currently running executable.
cloudflared update [flags]When `cloudflared update` is executed, it performs the following steps:
1. **Checks for New Version**: It contacts Cloudflare's update servers to determine the latest stable release version of `cloudflared` compatible with your operating system and architecture.
2. **Downloads Update**: If a newer version is available, it downloads the new `cloudflared` binary.
3. **Replaces Executable**: It replaces the currently running `cloudflared` executable with the newly downloaded version.
4. **Restarts (Optional/Manual)**: The `cloudflared update` command itself does *not* automatically restart the running `cloudflared` service or daemon. After a successful update, you will typically need to manually restart your `cloudflared` service (e.g., `systemctl restart cloudflared` on Linux, or similar for other OS) to ensure that the new version is active. If you are running `cloudflared` in a terminal directly, you would need to stop it and start it again.
This command is crucial for maintaining security and ensuring you have access to the latest features and bug fixes.
While `cloudflared update` often works without specific flags, here are some that might be relevant or generally applicable in `cloudflared` context (though specific to `update` might be limited):
* `--help`, `-h`: Shows help for the `update` command.
#### 1. Basic Update
This is the most common way to update `cloudflared`. It will check for and apply the latest stable update.
sudo cloudflared update* **Explanation**: It's generally recommended to run this with `sudo` or as an administrator because `cloudflared` is often installed in a system-wide location (like `/usr/local/bin` or `/usr/bin`) that requires elevated privileges to modify.
#### 2. After a successful update, restarting the service
After running `cloudflared update`, you typically need to restart the `cloudflared` service to ensure the new version is loaded. The method for restarting depends on how you are running `cloudflared`.
**If running as a systemd service (common on Linux):**
sudo systemctl restart cloudflared**If running manually in a terminal:**
First, stop the current process (e.g., by pressing `Ctrl+C` in the terminal where it's running), then start it again:
cloudflared tunnel run <TUNNEL_NAME_OR_UUID>(Replace `<TUNNEL_NAME_OR_UUID>` with your actual tunnel identifier).
* **Permissions**: Ensure you have the necessary permissions (e.g., `sudo` on Linux/macOS, Administrator on Windows) to write to the directory where `cloudflared` is installed.
* **Service Restart**: Always remember to restart your `cloudflared` service after an update to apply the changes.
* **Rollback**: The `cloudflared update` command does not provide a built-in rollback mechanism. If a new version introduces an issue, you would typically need to manually download and install an older version from Cloudflare's releases page.
* **Automated Updates**: For production environments, consider how updates are managed. While manual updates are straightforward, some users might integrate `cloudflared update` into their CI/CD pipelines or use configuration management tools to ensure consistent versions across deployments.