huawei-cloud-swr-image-management

Huawei Cloud SWR (Software Repository for Container) image lifecycle management skill using hcloud CLI. Use this skill when the user wants to: (1) manage SWR namespaces (organizations) - create/query/delete, (2) manage image repositories - create/query/update/delete, (3) manage image tags/versions - query/create/delete, (4) obtain docker login credentials for SWR, (5) check SWR quotas and usage limits. Trigger: user mentions "SWR image management", "SWR 镜像管理", "container image", "镜像仓库", "SWR 组织", "SWR namespace", "镜像版本", "docker login", "SWR 配额", "SWR tag", "容器镜像", "镜像生命周期", "SWR repository", "SWR 登录", "SWR quota"

Overview

This skill provides lifecycle management capabilities for Huawei Cloud SWR (Software Repository for Container) images using the hcloud CLI.

Architecture: hcloud CLI → SWR Service API → Namespace/Repository/Tag/Auth/Quota resources

• Create and manage SWR namespaces (organizations)
• Create and manage image repositories with public/private settings
• Query and manage image tags/versions
• Obtain docker login credentials (temporary and long-term)
• Check SWR resource quotas

Typical Use Cases:

• "Create a SWR namespace for my project"
• "List all image repositories in namespace 'group-dev'"
• "Query image tags for repository 'nginx' in namespace 'group-dev'"
• "Get docker login command for SWR"
• "Delete an old image tag to clean up storage"
• "Check my SWR quota usage"
• "Create a private repository for my custom image"
• "Update repository description and visibility"

工作流

1. Parse user request — identify the SWR operation (namespace, repository, tag, auth, quota)
2. Verify prerequisites — check hcloud CLI installation and credential configuration
3. Confirm parameters — display the operation, target resources, and parameters to the user for confirmation
4. Execute read operations — for query operations (Show, List), run hcloud CLI directly
5. Confirm write operations — for write operations (Create, Update, Delete), prompt user confirmation before execution (see 参数确认)
6. Parse and format output — extract relevant fields, format as table or structured output
7. Report results — present results with context (e.g., namespace created, repository visibility changed)
8. Suggest next actions — recommend related operations (e.g., after creating namespace, suggest creating a repository)

参数确认

All write operations (Create, Update, Delete) require explicit user confirmation before execution.

Before executing any write operation, the skill must:

1. Display the exact hcloud command to be executed
2. Show the target resource (namespace, repository, tag, etc.)
3. Show the change to be applied (create, delete, visibility change)
4. Wait for user confirmation ("yes" / "确认") before proceeding
5. If user declines, abort the operation and return to step 1

Write operations requiring confirmation:

Operation	Command	Risk Level	Description
Create namespace	CreateNamespace	Medium	Creates a new SWR namespace (consumes quota)
Create repository	CreateRepo	Medium	Creates a new image repository
Update repository	UpdateRepo	Medium	Changes repository visibility (public/private)
Delete namespace	DeleteNamespaces	High	Deletes namespace AND all repos/images under it
Delete repository	DeleteRepo	High	Deletes repository AND all image tags permanently
Delete tag	DeleteRepoTag	High	Deletes image tag permanently (irreversible)

Prerequisites

1. hcloud CLI Requirements (MANDATORY)

• hcloud CLI installed (version >= 7.2.2)
• Run hcloud version to verify installation
• First-time usage: printf "y\n" | hcloud version to accept privacy statement

2. Credential Configuration

hcloud CLI supports two credential modes via environment variables, automatically detected at runtime:

Mode A — Long-term AK/SK (permanent access):

bash

export HUAWEI_CLOUD_AK=<your-ak>
export HUAWEI_CLOUD_SK=<your-sk>
export HUAWEI_CLOUD_REGION=cn-north-4

Mode B — Temporary AK/SK + SecurityToken (recommended for temporary or delegated access):

bash

export HUAWEI_CLOUD_AK=<your-temp-ak>
export HUAWEI_CLOUD_SK=<your-temp-sk>
export HUAWEI_CLOUD_SECURITY_TOKEN=<your-security-token>
export HUAWEI_CLOUD_REGION=cn-north-4

When HUAWEI_CLOUD_SECURITY_TOKEN is present, hcloud CLI automatically uses temporary credential authentication. When only AK/SK are set, it uses long-term credential authentication.

• Security Rules:
  • 🚫 Never expose AK/SK/SecurityToken values in code, conversation, or commands
  • 🚫 Never use echo $HUAWEI_CLOUD_AK or echo $HUAWEI_CLOUD_SK to check credentials
  • ✅ Use environment variables: HUAWEI_CLOUD_AK, HUAWEI_CLOUD_SK, HUAWEI_CLOUD_REGION, HUAWEI_CLOUD_SECURITY_TOKEN
  • ✅ Prefer IAM users over root account for cloud operations
  • ✅ Enable MFA for sensitive operations

⚠️ Important Security Notes:

• Never commit credentials to version control
• Use IAM users with minimal required permissions
• Enable MFA for sensitive operations
• Rotate AK/SK regularly

3. IAM Permission Requirements

API Action	Permission	Purpose
swr:namespace:create	Create namespace	Create SWR organizations
swr:namespace:list	List namespaces	Query all namespaces
swr:namespace:get	Get namespace	View individual namespace information
swr:namespace:delete	Delete namespace	Remove organizations
swr:repository:create	Create repo	Create image repositories
swr:repository:list	List repos	Query image repositories
swr:repository:get	Get repo	View repository details
swr:repository:update	Update repo	Modify repository properties
swr:repository:delete	Delete repo	Remove image repositories
swr:tag:list	List tags	Query image tags/versions
swr:tag:get	Get tag	View specific tag details
swr:tag:create	Create tag	Create image tag
swr:tag:delete	Delete tag	Remove image tag
swr:login:get	Get login token	Obtain docker login credentials
swr:quota:get	Get quota	Check resource quotas

See IAM Permission Policies for complete policy JSON.

Permission Failure Handling:

1. When any command fails due to permission errors, read references/iam-policies.md
2. Display the required permission list and policy JSON to the user
3. Guide the user to create a custom policy in the IAM console and grant authorization
4. Pause execution and wait for user confirmation that permissions have been granted

KooCLI命令格式标准

All commands follow the standard hcloud KooCLI format:

bash

hcloud SWR <Operation> --param1=value1 --param2=value2 --cli-region=<region>

Key conventions:

• Service name: SWR (uppercase, matches KooCLI Services listing)
• Operation name: PascalCase (e.g., ShowNamespace, CreateRepo, ListRepoTags)
• Region parameter: --cli-region=<value> (default: cn-north-4, or HUAWEI_CLOUD_REGION env var)
• Output format: --cli-output=json (for agent processing)
• JMESPath filtering: --cli-query="<expression>" (to reduce output)
• Object-type parameters: JSON string format --key={subkey:value}

Example — read operation:

bash

hcloud SWR ShowNamespace --namespace=pancake --cli-region=cn-north-4 --cli-output=json

Example — write operation (requires user confirmation):

bash

# Step 1: Display command and parameters for user confirmation
# Step 2: After user confirms, execute:
hcloud SWR CreateNamespace --namespace=my-project --cli-region=cn-north-4

Core Commands

1. Namespace (Organization) Management

See Task: Namespace Management for detailed workflows.

bash

# List all namespaces
hcloud SWR ListNamespaces --cli-region=cn-north-4

# List namespaces with filter
hcloud SWR ListNamespaces --filter="namespace::group-dev|mode::visible" --cli-region=cn-north-4

# Show namespace details
hcloud SWR ShowNamespace --namespace=group-dev --cli-region=cn-north-4

# Create a namespace
hcloud SWR CreateNamespace --namespace=group-dev --cli-region=cn-north-4

# Delete a namespace (CAUTION: removes all repos under it)
hcloud SWR DeleteNamespaces --namespace=group-dev --cli-region=cn-north-4

Namespace Naming Rules:

• Start with lowercase letter
• Followed by lowercase letters, digits, dots, underscores, or hyphens
• Max 2 consecutive underscores
• Dots, underscores, hyphens cannot be directly connected
• End with lowercase letter or digit
• Length: 1-64 characters

2. Repository (Image Repository) Management

See Task: Repository Management for detailed workflows.

bash

# List all repositories
hcloud SWR ListReposDetails --cli-region=cn-north-4

# List repositories in a namespace
hcloud SWR ListReposDetails --namespace=group-dev --cli-region=cn-north-4

# List repositories with pagination and sorting
hcloud SWR ListReposDetails --namespace=group-dev --limit=20 --offset=0 --order_column=updated_time --order_type=desc --cli-region=cn-north-4

# List repositories by category
hcloud SWR ListReposDetails --category=database --cli-region=cn-north-4

# Show repository details
hcloud SWR ShowRepository --namespace=group-dev --repository=nginx --cli-region=cn-north-4

# Create a repository
hcloud SWR CreateRepo --namespace=group-dev --repository=my-app --is_public=false --category=other --description="Custom app image" --cli-region=cn-north-4

# Update repository (change visibility, description, category)
hcloud SWR UpdateRepo --namespace=group-dev --repository=my-app --is_public=true --description="Updated description" --cli-region=cn-north-4

# Delete a repository (CAUTION: removes all image tags)
hcloud SWR DeleteRepo --namespace=group-dev --repository=my-app --cli-region=cn-north-4

Repository Naming Rules:

• Start with lowercase letter or digit
• Followed by lowercase letters, digits, dots, slashes, underscores, or hyphens
• Max 2 consecutive underscores
• Dots, slashes, underscores, hyphens cannot be directly connected
• End with lowercase letter or digit
• Length: 1-128 characters

Repository Categories: app_server, linux, framework_app, database, lang, other, windows, arm

3. Image Tag (Version) Management

See Task: Tag Management for detailed workflows.

bash

# List all tags in a repository
hcloud SWR ListRepositoryTags --namespace=group-dev --repository=nginx --cli-region=cn-north-4

# List tags with pagination and sorting
hcloud SWR ListRepositoryTags --namespace=group-dev --repository=nginx --limit=50 --offset=0 --order_column=updated_at --order_type=desc --cli-region=cn-north-4

# Search for a specific tag
hcloud SWR ListRepositoryTags --namespace=group-dev --repository=nginx --filter="tag::v1.0" --cli-region=cn-north-4

# Show tag details (image digest, size, create time)
hcloud SWR ShowRepoTag --namespace=group-dev --repository=nginx --tag=v1.0 --cli-region=cn-north-4

# Create a tag (retag existing image)
hcloud SWR CreateRepoTag --namespace=group-dev --repository=nginx --source_tag=v1.0 --destination_tag=v1.0-stable --override=false --cli-region=cn-north-4

# Delete a tag (CAUTION: removes the image version permanently)
hcloud SWR DeleteRepoTag --namespace=group-dev --repository=nginx --tag=v1.0-old --cli-region=cn-north-4

4. Docker Login & Authentication

See Task: Auth Management for detailed workflows.

bash

# Get temporary docker login credentials (valid for 12 hours)
hcloud SWR CreateAuthorizationToken --cli-region=cn-north-4

# Get long-term docker login credentials (valid for 1 year)
hcloud SWR CreateSecret --cli-region=cn-north-4

Response Format (verified against actual API):

The response returns a Docker auth config object:

json

{
  "auths": {
    "swr.cn-north-4.myhuaweicloud.com": {
      "auth": "base64-encoded-auth-token"
    }
  }
}

• auths: Docker config auth object, registry host as key
• auth: Base64-encoded username:password string

Docker Login Command:

bash

# Decode auth field: echo <auth_value> | base64 -d → username:password
docker login -u <decoded_username> -p <decoded_password> swr.cn-north-4.myhuaweicloud.com

5. Quota Management

See Task: Quota Management for detailed workflows.

bash

# Check SWR quotas
hcloud SWR ListQuotas --cli-region=cn-north-4

Parameter Reference

See Parameter Reference for detailed parameter tables and valid values per command.

Output Format

See Output Format Reference for JSON response formats of all SWR API commands.

Verification

See Verification Method for step-by-step verification.

Best Practices

1. Namespace Organization: Use descriptive namespace names following team/project naming (e.g., team-backend, proj-ai)
2. Repository Visibility: Set is_public=false for internal images; only set is_public=true for images intended for public sharing
3. Tag Naming Convention: Use semantic versioning (e.g., v1.0, v1.0-stable, latest) and avoid ambiguous tags
4. Regular Cleanup: Periodically delete outdated tags to manage storage quotas
5. Retag Instead of Re-push: Use CreateRepoTag to create version aliases rather than pushing the same image multiple times
6. Long-term Login for CI/CD: Use CreateSecret for automation pipelines; use CreateAuthorizationToken for temporary access
7. Delete with Caution: Deleting a namespace removes ALL repositories under it; deleting a repository removes ALL tags

Reference Documents

Document	Description
SWR API Guide	hcloud SWR API reference
Parameter Reference	Parameter tables and region IDs
Output Format	JSON response formats
IAM Permission Policies	Required permissions and policy JSON
Verification Method	Step-by-step verification
Common Pitfalls	Troubleshooting guides
Task: Namespace Management	Namespace workflows
Task: Repository Management	Repository workflows
Task: Tag Management	Tag workflows
Task: Auth Management	Login credential workflows
Task: Quota Management	Quota check workflows
CLI Installation Guide	hcloud install, config, verify
Acceptance Criteria	Correct/error pattern comparison

Unsupported Operations

This skill manages SWR namespaces, repositories, tags, auth credentials, and quotas via the hcloud CLI. The following operations are not supported by this skill:

Push/Pull Images (docker CLI operations)

This skill provides docker login credentials via CreateAuthorizationToken or CreateSecret, but does not execute docker push or docker pull. After obtaining credentials, use docker CLI directly:

bash

# Step 1: Get login credentials from this skill
hcloud SWR CreateAuthorizationToken --cli-region=cn-north-4
# Decode the auth field to get username:password

# Step 2: Login and push/pull with docker CLI
docker login -u <user> -p <pass> swr.cn-north-4.myhuaweicloud.com
docker push swr.cn-north-4.myhuaweicloud.com/<namespace>/<repo>:<tag>
docker pull swr.cn-north-4.myhuaweicloud.com/<namespace>/<repo>:<tag>

Image Security Scanning

Image security scanning is not provided by this skill. It strongly depends on Huawei Cloud HSS (Host Security Service) and requires an enterprise SWR instance. The StartManualScanning API is only available in enterprise SWR instances, not in basic SWR. This skill covers basic SWR management only and does not include image scanning capabilities.

Build History

The SWR API does not provide build history commands. Image build functionality is available only in the SWR Web Console. Use the Huawei Cloud console at https://console.huawei.com/swr to view build history.

External Image Import

The SWR API does not provide an image import operation. To import an external image (e.g., from Docker Hub):

bash

# Step 1: Pull the external image
docker pull docker.io/library/nginx:latest

# Step 2: Get SWR login credentials from this skill
hcloud SWR CreateAuthorizationToken --cli-region=cn-north-4

# Step 3: Tag and push to SWR
docker tag docker.io/library/nginx:latest swr.cn-north-4.myhuaweicloud.com/<namespace>/nginx:latest
docker push swr.cn-north-4.myhuaweicloud.com/<namespace>/nginx:latest

Write Operation Return Values

See Verification Method for write operation return values and post-write verification steps.

Pagination Parameter Scope

See SWR API Guide for pagination parameter scope details.

Notes

• Namespace deletion is irreversible — removes all repositories and images under it
• Repository deletion is irreversible — removes all image tags permanently
• Tag deletion is irreversible — the image version cannot be recovered
• AK/SK must never be hardcoded — credentials should only be obtained via environment variables
• hcloud CLI is the only supported method — all operations use hcloud SWR <Operation> format
• Pagination required for large datasets — use --limit and --offset for repositories and tags listing

Common Pitfalls

See Common Pitfalls & Solutions for detailed troubleshooting guides.

Quick Reference:

Pitfall	Symptom	Quick Fix
Invalid namespace name	400 Bad Request	Follow naming rules: lowercase, 1-64 chars
Namespace not found	404 Not Found	Verify namespace exists with ShowNamespace
Repo already exists	409 Conflict	Use ShowRepository to check first
Tag digest mismatch	Retag fails	Verify source_tag exists with ShowRepoTag
Quota exceeded	403 Quota limit	Check quotas with ListQuotas
Auth token expired	Docker login fails	Regenerate with CreateAuthorizationToken
Tag field name	Tag query returns unexpected structure	Use Tag (capital T) not name
num_images not tag_count	Repo listing field mismatch	Response uses num_images; --order_column uses tag_count