Overview
CCE provides multiple types of add-ons to extend cluster functions and meet feature requirements. You can install add-ons as required.
CCE uses Helm charts to deploy add-ons. To modify or upgrade an add-on, perform operations on the Add-ons page or use open add-on management APIs. Do not directly modify resources related to add-ons in the background. Otherwise, add-on exceptions or other unexpected problems may occur.
Scheduling and Elasticity Add-ons
Add-on Name |
Description |
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This add-on is a scheduler for general-purpose, high-performance computing such as job scheduling, heterogeneous chip management, and job running management, serving end users through computing frameworks for different industries such as AI, big data, gene sequencing, and rendering. |
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This add-on resizes a cluster based on pod scheduling status and resource usage. |
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This add-on is developed by CCE. It can be used to flexibly scale in or out Deployments based on metrics such as CPU usage and memory usage. |
Cloud Native Observability Add-ons
Add-on Name |
Description |
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This add-on uses Prometheus-operator and Prometheus to provide easy-to-use, end-to-end Kubernetes cluster monitoring. |
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This add-on collects logs and is built based on open source Fluent Bit and OpenTelemetry. It supports CRD-based log collection policies. It collects and forwards stdout logs, container file logs, node logs, and Kubernetes event logs in a cluster based on configured policies. |
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This add-on monitors abnormal events of cluster nodes and connects to a third-party monitoring platform. It is a daemon running on each node. It collects node issues from different daemons and reports them to the API server. It can run as a DaemonSet or a daemon. |
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This add-on monitors and manages container network traffic. It collects how many IPv4 packets and bytes are received and sent (including those sent to the Internet) and allows you to obtain pod labels. It supports multiple monitoring tasks, allows you to select monitoring metrics, and uses a PodSelector to select monitoring backends. The monitoring information has been adapted to Prometheus. You can call the Prometheus API to view monitoring data. |
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This add-on is an aggregator for monitoring data of core cluster resources. |
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This add-on is an open source visualized data monitoring platform. It provides you with various charts and panels for real-time monitoring, analysis, and visualization of various metrics and data sources. |
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This add-on is an open-source system monitoring and alerting framework. CCE allows you to quickly install Prometheus as an add-on. |
Cloud Native Heterogeneous Computing Add-ons
Add-on Name |
Description |
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NVIDIA GPU is a device management add-on that supports GPUs in containers. It supports only NVIDIA drivers. |
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Ascend NPU is a device management add-on that supports Huawei NPUs in containers. |
Container Network Add-ons
Add-on Name |
Description |
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CoreDNS is a DNS server that provides domain name resolution for Kubernetes clusters through a chain add-on. |
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This add-on forwards application data such as the data of virtual hosts, load balancers, SSL proxy, and HTTP routing for Services that can be directly accessed outside a cluster. |
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NodeLocal DNSCache improves cluster DNS performance by running DNS cache proxies as DaemonSets on cluster nodes. |
Container Storage Add-on
Add-on Name |
Description |
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This add-on is a cloud native container storage system, which enables clusters of Kubernetes v1.15.6 or later to use cloud storage through the Container Storage Interface (CSI). |
Container Security Add-on
Add-on Name |
Description |
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This add-on is used to interconnect with Data Encryption Workshop (DEW), which allows you to mount secrets stored outside a cluster (DEW for storing sensitive information) to pods. In this way, sensitive information can be decoupled from the cluster environment, which prevents information leakage caused by program hardcoding or plaintext configuration. |
Other Add-ons
Add-on Name |
Description |
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This add-on is a general-purpose, web-based UI for Kubernetes clusters and integrates all commands that can be used in the CLI. It allows users to manage applications running in a cluster and troubleshoot faults, as well as manage the cluster itself. |
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This add-on allows you to use kubectl on a web UI. It can connect to Linux by using WebSocket through a browser and provides APIs for integration into independent systems. It can be directly used as a service to obtain information through the configuration management database (CMDB) and log in to the server. |
Add-on Lifecycle
An add-on lifecycle involves all the statuses of the add-on from installation to uninstallation.
Status |
Attribute |
Description |
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Running |
Stable state |
The add-on is running properly, all add-on instances are deployed properly, and the add-on can be used properly. |
Partially ready |
Stable state |
The add-on is running properly, but some add-on instances are not properly deployed. In this state, the add-on functions may be unavailable. |
Unavailable |
Stable state |
The add-on malfunctions, and all add-on instances are not properly deployed. |
Installing |
Intermediate state |
The add-on is being deployed. If all instances cannot be scheduled due to incorrect add-on configuration or insufficient resources, the system sets the add-on status to Unavailable 10 minutes later. |
Installation failed |
Stable state |
Install add-on failed. Uninstall it and try again. |
Upgrading |
Intermediate state |
The add-on is being upgraded. |
Upgrade failed |
Stable state |
Upgrade add-on failed. Upgrade it again, or uninstall it and try again. |
Rolling back |
Intermediate state |
The add-on is rolling back. |
Rollback failed |
Stable state |
The add-on rollback failed. Retry the rollback, or uninstall it and try again. |
Deleting |
Intermediate state |
The add-on is being deleted. If this state stays for a long time, an exception occurred. |
Deletion failed |
Stable state |
Delete add-on failed. Try again. |
Unknown |
Stable state |
No add-on chart found. |
When an add-on is in an intermediate state such as Installing or Deleting, you are not allowed to edit or uninstall the add-on.
If the add-on status is unknown and the returned status.Reason is "don't install the addon in this cluster", the secret associated with the Helm release of the add-on in the cluster is typically deleted by mistake. In this case, uninstall the add-on and reinstall it with the same configurations.
Related Operations
Operation |
Description |
Procedure |
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Install |
Install a specified add-on. |
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Upgrade |
Upgrade an add-on to the new version. |
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Edit |
Edit add-on parameters. |
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Uninstall |
Uninstall an add-on from the cluster. |
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Roll back |
Roll back an add-on to the source version.
NOTE:
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Add-on rollback is supported in certain add-on versions.
- CoreDNS: 1.25.11 and later versions
- Everest: 2.1.19 and later versions
- Autoscaler:
- v1.21 clusters: v1.21.22 and later versions
- v1.23 clusters: v1.23.24 and later versions
- v1.25 clusters: v1.25.14 and later versions
- kube-prometheus-stack: v3.7.2 and later versions
- Volcano: 1.11.4 and later versions
- NPD: 1.18.22 and later versions
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