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- Notice on nginx-ingress Security Vulnerabilities (CVE-2021-25745 and CVE-2021-25746)
- Notice on the containerd Process Privilege Escalation Vulnerability (CVE-2022-24769)
- Notice on CRI-O Container Runtime Engine Arbitrary Code Execution Vulnerability (CVE-2022-0811)
- Notice on the Container Escape Vulnerability Caused by the Linux Kernel (CVE-2022-0492)
- Notice on the Non-Security Handling Vulnerability of containerd Image Volumes (CVE-2022-23648)
- Linux Kernel Integer Overflow Vulnerability (CVE-2022-0185)
- Linux Polkit Privilege Escalation Vulnerability (CVE-2021-4034)
- Notice on the Vulnerability of Kubernetes subPath Symlink Exchange (CVE-2021-25741)
- Notice of runC Vulnerability That Allows a Container Filesystem Breakout via Directory Traversal (CVE-2021-30465)
- Notice on the Docker Resource Management Vulnerability (CVE-2021-21285)
- Notice of NVIDIA GPU Driver Vulnerability (CVE-2021-1056)
- Notice on the Sudo Buffer Vulnerability (CVE-2021-3156)
- Notice on the Kubernetes Security Vulnerability (CVE-2020-8554)
- Notice of Apache containerd Security Vulnerability (CVE-2020-15257)
- Notice on the Docker Engine Input Verification Vulnerability (CVE-2020-13401)
- Notice of Kubernetes kube-apiserver Input Verification Vulnerability (CVE-2020-8559)
- Notice on the Kubernetes kubelet Resource Management Vulnerability (CVE-2020-8557)
- Notice on the Kubernetes kubelet and kube-proxy Authorization Vulnerability (CVE-2020-8558)
- Notice on Fixing Kubernetes HTTP/2 Vulnerability
- Notice on Fixing Linux Kernel SACK Vulnerabilities
- Notice on Fixing the Docker Command Injection Vulnerability (CVE-2019-5736)
- Notice on Fixing the Kubernetes Permission and Access Control Vulnerability (CVE-2018-1002105)
- Notice of Fixing the Kubernetes Dashboard Security Vulnerability (CVE-2018-18264)
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Product Release Notes
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Add-on Versions
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Cluster Versions
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User Guide
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Clusters
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Cluster Overview
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Kubernetes Version Release Notes
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- Buying a Cluster
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Managing a Cluster
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Upgrading a Cluster
- Process and Method of Upgrading a Cluster
- Before You Start
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Troubleshooting for Pre-upgrade Check Exceptions
- Pre-upgrade Check
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Cluster Overview
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Nodes
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Management Nodes
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Node O&M
- Node Resource Reservation Policy
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- Differences in kubelet and Runtime Component Configurations Between CCE and the Native Community
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Workloads
- Overview
- Creating a Workload
-
Configuring a Workload
- Configuring Time Zone Synchronization
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Network
- Overview
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Container Network
- Overview
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Cloud Native Network 2.0 Settings
- Cloud Native 2.0 Network Model
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Service
- Overview
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LoadBalancer
- Creating a LoadBalancer Service
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- Configuring Passthrough Networking for a LoadBalancer Service
- Setting the Pod Ready Status Through the ELB Health Check
- Headless Services
-
Ingresses
- Overview
-
LoadBalancer Ingresses
- Creating a LoadBalancer Ingress on the Console
- Creating a LoadBalancer Ingress Using kubectl
- Annotations for Configuring LoadBalancer Ingresses
-
Advanced Setting Examples of LoadBalancer Ingresses
- Configuring an HTTPS Certificate for a LoadBalancer Ingress
- Configuring SNI for a LoadBalancer Ingress
- Configuring Multiple Forwarding Policies for a LoadBalancer Ingress
- Configuring HTTP/2 for a LoadBalancer Ingress
- Configuring HTTPS Backend Services for a LoadBalancer Ingress
- Configuring Timeout for a LoadBalancer Ingress
- Configuring a Slow Start for a LoadBalancer Ingress
- Configuring a Range of Listening Ports for a LoadBalancer Ingress
- Nginx Ingresses
- DNS
- Configuring Intra-VPC Access
- Accessing the Internet from a Container
- Storage
- Observability
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- Settings
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Old Console
- What Is Cloud Container Engine?
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- Clusters
-
Nodes
- Overview
- Buying a Node
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- Synchronizing Node Data
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- Stopping a Node
- Performing Rolling Upgrade for Nodes
- Formula for Calculating the Reserved Resources of a Node
- Creating a Linux LVM Disk Partition for Docker
- Data Disk Space Allocation
- Adding a Second Data Disk to a Node in a CCE Cluster
- Node Pools
-
Workloads
- Overview
- Creating a Deployment
- Creating a StatefulSet
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-
Configuring a Container
- Using a Third-Party Image
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- Cloud Trace Service (CTS)
-
Best Practices
- Checklist for Deploying Containerized Applications in the Cloud
- Containerization
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Security
- Configuration Suggestions on CCE Cluster Security
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-
API Reference
- Before You Start
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APIs
- API URL
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Cluster Management
- Creating a Cluster
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- Configuring Cluster Logs
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- Node Management
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- Add-on Management
-
Cluster Upgrade
- Upgrading a Cluster
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- Continuing to Execute a Cluster Upgrade Task (Deprecated)
- Obtaining a List of Cluster Upgrade Task Details
- Pre-upgrade Check
- Obtaining Details About a Pre-upgrade Check Task of a Cluster
- Obtaining a List of Pre-upgrade Check Tasks of a Cluster
- Post-upgrade Check
- Cluster Backup
- Obtaining a List of Cluster Backup Task Details
- Obtaining the Cluster Upgrade Information
- Obtaining a Cluster Upgrade Path
- Obtaining the Configuration of Cluster Upgrade Feature Gates
- Enabling the Cluster Upgrade Process Booting Task
- Obtaining a List of Upgrade Workflows
- Obtaining Details About a Specified Cluster Upgrade Task
- Updating the Status of a Specified Cluster Upgrade Booting Task
- Quota Management
- API Versions
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-
Chart Management
- Uploading a Chart
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- Obtaining a Chart
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- Downloading a Chart
- Obtaining a Release
- Obtaining Chart Values
- Obtaining Historical Records of a Release
- Obtaining the Quota of a User Chart
- Kubernetes APIs
- Permissions and Supported Actions
-
Appendix
- Status Code
- Error Codes
- Obtaining a Project ID
- Obtaining an Account ID
- Specifying Add-ons to Be Installed During Cluster Creation
- How to Obtain Parameters in the API URI
- Creating a VPC and Subnet
- Creating a Key Pair
- Node Flavor Description
- Adding a Salt in the password Field When Creating a Node
- Maximum Number of Pods That Can Be Created on a Node
- Node OS
- Data Disk Space Allocation
- Attaching Disks to a Node
- SDK Reference
-
FAQs
- Common FAQ
- Billing
- Cluster
-
Node
- Node Creation
-
Node Running
- What Should I Do If a Cluster Is Available But Some Nodes Are Unavailable?
- How Do I Log In to a Node Using a Password and Reset the Password?
- How Do I Collect Logs of Nodes in a CCE Cluster?
- What Should I Do If the vdb Disk of a Node Is Damaged and the Node Cannot Be Recovered After Reset?
- What Should I Do If I/O Suspension Occasionally Occurs When SCSI EVS Disks Are Used?
- How Do I Fix an Abnormal Container or Node Due to No Thin Pool Disk Space?
- How Do I Rectify Failures When the NVIDIA Driver Is Used to Start Containers on GPU Nodes?
- Specification Change
- OSs
- Node Pool
-
Workload
-
Workload Exception Troubleshooting
- How Can I Find the Fault for an Abnormal Workload?
- What Should I Do If Pod Scheduling Fails?
- What Should I Do If a Pod Fails to Pull the Image?
- What Should I Do If Container Startup Fails?
- What Should I Do If a Pod Fails to Be Evicted?
- What Should I Do If a Storage Volume Cannot Be Mounted or the Mounting Times Out?
- What Should I Do If a Workload Remains in the Creating State?
- What Should I Do If a Pod Remains in the Terminating State?
- What Should I Do If a Workload Is Stopped Caused by Pod Deletion?
- What Should I Do If an Error Occurs When I Deploy a Service on the GPU Node?
- How Can I Locate Faults Using an Exit Code?
- Container Configuration
- Scheduling Policies
-
Others
- What Should I Do If a Cron Job Cannot Be Restarted After Being Stopped for a Period of Time?
- What Is a Headless Service When I Create a StatefulSet?
- What Should I Do If Error Message "Auth is empty" Is Displayed When a Private Image Is Pulled?
- What Is the Image Pull Policy for Containers in a CCE Cluster?
- What Can I Do If a Layer Is Missing During Image Pull?
-
Workload Exception Troubleshooting
-
Networking
-
Network Exception Troubleshooting
- How Do I Locate a Workload Networking Fault?
- Why Does the Browser Return Error Code 404 When I Access a Deployed Application?
- What Should I Do If a Container Fails to Access the Internet?
- What Should I Do If a Node Fails to Connect to the Internet (Public Network)?
- What Should I Do If Nginx Ingress Access in the Cluster Is Abnormal After the NGINX Ingress Controller Add-on Is Upgraded?
- What Could Cause Access Exceptions After Configuring an HTTPS Certificate for a LoadBalancer Ingress?
- Network Planning
- Security Hardening
-
Network Configuration
- How Can Container IP Addresses Survive a Container Restart?
- How Can I Check Whether an ENI Is Used by a Cluster?
- How Can I Delete a Security Group Rule Associated with a Deleted Subnet?
- How Can I Synchronize Certificates When Multiple Ingresses in Different Namespaces Share a Listener?
- How Can I Determine Which Ingress the Listener Settings Have Been Applied To?
-
Network Exception Troubleshooting
-
Storage
- How Do I Expand the Storage Capacity of a Container?
- What Are the Differences Among CCE Storage Classes in Terms of Persistent Storage and Multi-Node Mounting?
- Can I Create a CCE Node Without Adding a Data Disk to the Node?
- What Should I Do If the Host Cannot Be Found When Files Need to Be Uploaded to OBS During the Access to the CCE Service from a Public Network?
- How Can I Achieve Compatibility Between ExtendPathMode and Kubernetes client-go?
- Can CCE PVCs Detect Underlying Storage Faults?
- What Should I Do If a Yearly/Monthly EVS Disk Cannot Be Automatically Created?
- Namespace
-
Chart and Add-on
- What Should I Do If Installation of an Add-on Fails and "The release name is already exist" Is Displayed?
- How Do I Configure the Add-on Resource Quotas Based on Cluster Scale?
- How Can I Clean Up Residual Resources After the NGINX Ingress Controller Add-on in the Unknown State Is Deleted?
- Why TLS v1.0 and v1.1 Cannot Be Used After the NGINX Ingress Controller Add-on Is Upgraded?
-
API & kubectl FAQs
- How Can I Access a Cluster API Server?
- Can the Resources Created Using APIs or kubectl Be Displayed on the CCE Console?
- How Do I Download kubeconfig for Connecting to a Cluster Using kubectl?
- How Do I Rectify the Error Reported When Running the kubectl top node Command?
- Why Is "Error from server (Forbidden)" Displayed When I Use kubectl?
- DNS FAQs
- Image Repository FAQs
- Permissions
- Videos
Granting Cluster Permissions to an IAM User
CCE cluster-level permissions are assigned based on IAM system policies and custom policies. You can use user groups to assign permissions to IAM users.
- Cluster permissions are granted to users for operating cluster-related resources only (such as clusters and nodes). To operate Kubernetes resources like workloads and Services, you must be granted the namespace permissions as well.
- When viewing a cluster on the CCE console, the information displayed depends on the namespace permissions. If you have no namespace permissions, you cannot view the resources in the cluster. For details, see Permission Dependency of the CCE Console.
Prerequisites
- A user with the Security Administrator role (for example, your account) has all IAM permissions except role switching. Only these users can view user groups and their permissions on the Permissions page on the CCE console.
Configuration
On the CCE console, when you choose Permissions > Cluster-Level Permissions to create a user group, you will be directed to the IAM console to complete the process. After the user group is created and its permissions are configured, you can view the information on the Cluster-Level Permissions tab page. This section describes the operations in IAM.
Process Flow
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- Create a user group and assign permissions to it.
Create a user group on the IAM console, and assign CCE permissions, for example, the CCE ReadOnlyAccess policy to the group.
NOTE:
CCE is deployed by region. On the IAM console, select Region-specific projects when assigning CCE permissions.
- Create a user and add it to a user group.
Create a user on the IAM console and add the user to the group created in 1.
NOTICE:
IAM users need programmatic and management console access to use CCE.
- Log in and verify permissions.
Log in to the management console as the user you created, and verify that the user has the assigned permissions.
- Log in to the management console, switch to the CCE console, and buy a cluster. If you fail to do so (assuming that only the CCE ReadOnlyAccess permission is assigned), the CCE ReadOnlyAccess policy has already taken effect.
- Switch to the console of any other service. If a message appears indicating that you do not have the required permissions for accessing the service, the CCE ReadOnlyAccess policy has already taken effect.
System-defined Roles
Roles are a type of coarse-grained authorization mechanism that defines service-level permissions based on user responsibilities. Only a limited number of service-level roles are available for authorization. Roles are not ideal for fine-grained authorization and least privilege access.
The preset system role for CCE in IAM is CCE Administrator. When assigning this role to a user group, you must also select other roles and policies on which this role depends, such as Tenant Guest, Server Administrator, ELB Administrator, OBS Administrator, SFS Administrator, SWR Admin, and APM FullAccess.
System-defined Policies
The system policies preset for CCE in IAM are CCE FullAccess and CCE ReadOnlyAccess.
- CCE FullAccess: common operation permissions on CCE cluster resources, excluding the namespace-level permissions for the clusters (with Kubernetes RBAC enabled) and the privileged administrator operations, such as agency configuration and cluster certificate generation
- CCE ReadOnlyAccess: permissions to view CCE cluster resources, excluding the namespace-level permissions of the clusters (with Kubernetes RBAC enabled)
When purchasing a cluster or node that is billed on a yearly/monthly basis, add custom policies and configure payment permissions such as bss:*:* for the Billing Center.
Custom Policies
Custom policies can be created as a supplement to the system-defined policies of CCE.
You can create custom policies in either of the following ways:
- Visual editor: Select cloud services, actions, resources, and request conditions. This does not require knowledge of policy syntax.
- JSON: Edit JSON policies from scratch or based on an existing policy.
This section provides examples of common custom CCE policies.
Example Custom Policies:
- Example 1: Creating a cluster named test
{ "Version": "1.1", "Statement": [ { "Effect": "Allow", "Action": [ "cce:cluster:create" ] } ] }
- Example 2: Denying node deletion
A policy with only "Deny" permissions must be used with other policies. If the permissions assigned to a user contain both "Allow" and "Deny", the "Deny" permissions take precedence over the "Allow" permissions.
The following method can be used if you need to assign permissions of the CCEFullAccess policy to a user but you want to prevent the user from deleting nodes (cce:node:delete). Create a custom policy for denying node deletion, and attach both policies to the group to which the user belongs. Then, the user can perform all operations on CCE except deleting nodes. The following is an example of a deny policy:
{ "Version": "1.1", "Statement": [ { "Effect": "Deny", "Action": [ "cce:node:delete" ] } ] }
- Example 3: Defining permissions for multiple services in a policy
A custom policy can contain the actions of multiple services that are of the global or project-level type. The following is an example policy containing actions of multiple services:
{ "Version": "1.1", "Statement": [ { "Action": [ "ecs:cloudServers:resize", "ecs:cloudServers:delete", "ecs:cloudServers:delete", "ims:images:list", "ims:serverImages:create" ], "Effect": "Allow" } ] }
CCE Cluster Permissions and Enterprise Projects
CCE supports resource management and permission allocation by cluster and enterprise project.
Note that:
- IAM projects are based on physical isolation of resources, whereas enterprise projects provide global logical groups of resources, which better meet the actual requirements of enterprises. In addition, IAM policies can be managed based on enterprise projects. Therefore, use enterprise projects for permissions management.
- When there are both IAM projects and enterprise projects, IAM preferentially matches the IAM project policies.
- When creating a cluster or node using purchased cloud resources, ensure that IAM users have been granted the required permissions in the enterprise project to use these resources. Otherwise, the cluster or node may fail to be created.
- If a resource does not support enterprise projects, the permissions granted to the resource will not take effect.
Resource Type
Resource Name
Description
Supporting enterprise projects
cluster
Cluster
node
Node
nodepool
Node pool
job
Job
tag
Cluster label
addonInstance
Add-on instance
release
Helm release
storage
Storage
Not supporting enterprise projects
quota
Cluster quota
chart
Chart
addonTemplate
Add-on template
CCE Cluster Permissions and IAM RBAC
CCE is compatible with IAM system roles for permissions management. Use fine-grained policies provided by IAM to simplify permissions management.
CCE supports the following roles:
- Basic IAM roles:
- te_admin (Tenant Administrator): Users with this role can call all APIs of all services except IAM.
- readonly (Tenant Guest): Users with this role can call APIs with the read-only permissions of all services except IAM.
- Custom CCE administrator role: CCE Administrator
If a user has the Tenant Administrator or CCE Administrator system role, the user has the cluster-admin permissions in Kubernetes RBAC and the permissions cannot be removed after the cluster is created.
- Method 1: Choose Permissions Management > Namespace-Level Permissions > Delete in the same role as cluster-creator on the CCE console.
- Method 2: Delete ClusterRoleBinding: cluster-creator through the API or kubectl.
When RBAC and IAM policies co-exist, the backend authentication logic for open APIs or console operations on CCE is as follows.
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