Huawei Cloud EIP Cost Optimizer

Overview

This skill provides batch management and cost optimization capabilities for Huawei Cloud Elastic Public IPs (EIPs).

Architecture: Shell + hcloud CLI (KooCLI) → EIP Service API → VPC/Bandwidth resources

Related Skills: For broader cost optimization across all resource types (ECS, EVS, OBS, etc.), see the archived

huaweicloud-cost-optimizer

skill. This skill focuses exclusively on EIP optimization with deeper functionality and 100% hcloud CLI compliance.

Periodic cleanup of idle EIPs to reduce holding costs
Cost analysis and optimization recommendations
Multi-region unified management
Automated monitoring and alerting for idle resources
Operation audit logging for compliance

Typical Use Cases:

"Help me identify idle EIPs and generate an optimization report"
"Generate an EIP cost analysis report to identify high-cost resources"
"Set up idle EIP monitoring with automatic alerts via webhook or email"
"View EIP distribution and status summary across all regions"
"Show audit logs for EIP operations in the last 30 days"
"List all EIPs in cn-north-4 with detailed information"

Prerequisites

1. CLI Environment Requirements (MANDATORY)

hcloud CLI (KooCLI) v7.0+ — Huawei Cloud command-line tool
jq — JSON processor for parsing API responses
bc — Arbitrary precision calculator for cost estimation
curl — HTTP client for webhook notifications

Install hcloud CLI:

bash

# Linux/macOS one-click install
curl -sSL https://hwcloudcli.obs.cn-north-1.myhuaweicloud.com/cli/latest/hcloud_install.sh | bash

# Verify installation
hcloud --version

Install jq, bc, curl:

bash

# Ubuntu/Debian
sudo apt install -y jq bc curl

# CentOS/RHEL
sudo yum install -y jq bc curl

# macOS
brew install jq bc curl

Available Shell Scripts:

```
scripts/config.sh
```
- Shared configuration (credentials, regions, proxy)
```
scripts/list_eips.sh
```
- List all EIPs in a region (supports filtering and summary)
```
scripts/analyze_idle_eips.sh
```
- Analyze idle EIPs and generate optimization reports (read-only)
```
scripts/eip_cost_report.sh
```
- Generate EIP cost analysis reports (text/HTML/JSON)
```
scripts/monitor_idle_eips.sh
```
- Monitor idle EIPs with webhook/email alerts and cron support
```
scripts/check_env.sh
```
- Environment check and validation (hcloud CLI + tools + API)
```
scripts/eip_audit_log.sh
```
- Operation audit logging (JSONL + CSV/JSON export)

Note: All scripts are READ-ONLY. This skill does NOT perform bandwidth adjustment, tag management, or EIP release/deletion.

2. Authentication Configuration

This skill supports one authentication path via environment variables:

Environment Variables

bash

export HW_ACCESS_KEY=<your-ak>
export HW_SECRET_KEY=<your-sk>
export HW_REGION_NAME=cn-north-4

Note: If you have already configured
hcloud configure
interactively (entering credentials via prompts, not command-line arguments), the skill will also detect and use those credentials.

Environment Variables:

Variable	Required	Description
`HW_ACCESS_KEY`	Optional	Huawei Cloud Access Key ID (required only if hcloud configure not set)
`HW_SECRET_KEY`	Optional	Huawei Cloud Secret Access Key (required only if hcloud configure not set)
`HW_REGION_NAME`	Optional	Default region (default: `cn-north-4` )
`HW_SECURITY_TOKEN`	Optional	Security token for temporary credentials

Security Notes:

Never commit credentials to version control
Never expose AK/SK values in code, conversation, or commands
Never pass AK/SK values as command-line arguments (exposes credentials in shell history and
```
ps aux
```
)
Use IAM users with minimal required permissions
Enable MFA for sensitive operations
Rotate AK/SK regularly
Use
```
./scripts/check_env.sh
```
to validate credentials before running scripts

3. Quick Start

bash

# Step 1: Configure authentication via environment variables
export HW_ACCESS_KEY=<your-ak>
export HW_SECRET_KEY=<your-sk>
export HW_REGION_NAME=cn-north-4

# Step 2: Run environment check
bash scripts/check_env.sh

# Step 3: Run scripts
bash scripts/list_eips.sh --region cn-north-4
bash scripts/analyze_idle_eips.sh --idle-days 7
bash scripts/eip_cost_report.sh --format html

4. IAM Permission Requirements

Note: This skill is READ-ONLY for EIP resources. It does NOT perform any write operations.

API Action	Permission	Purpose
`vpc:publicIps:list`	List EIPs	Query all EIPs and their status
`vpc:publicIps:get`	Get EIP details	View individual EIP information

Workflow

Main Steps

Environment Check → Verify hcloud CLI, jq, credentials
EIP Query → List EIPs across regions via hcloud CLI
Idle Analysis → Identify unbound EIPs exceeding idle threshold
Cost Report → Generate HTML/JSON cost analysis report
Monitoring Setup → Configure idle EIP alerts (webhook/email)
Audit Logging → Record operations for compliance

EIP Query Workflow

List EIPs across regions, filter by status, output as JSON/table.

Idle EIP Analysis Workflow

Detect unbound EIPs idle beyond threshold, calculate holding costs, generate optimization report.

Cost Report Workflow

Aggregate EIP cost data, render as HTML or JSON report with savings recommendations.

Idle EIP Monitoring Workflow

Periodically check for idle EIPs, send alerts via webhook or email when detected.

Audit Log Workflow

All EIP operations (list/analyze/report/monitor) automatically write to the audit log file for compliance. Each script records its own action on exit. Query history with

--action query-log --days N

All EIP operations use hcloud CLI commands:

Python SDK Method hcloud CLI Command Description

Python SDK Method	hcloud CLI Command	Description
`EipClient.list_publicips()`	`hcloud EIP ListPublicips/v2 --cli-region=<region>`	List all EIPs
`EipClient.show_publicip()`	`hcloud EIP ShowPublicip/v2 --publicip_id=<id>`	Get EIP details
`IamClient.keystone_list_projects()`	`hcloud IAM KeystoneListProjects`	List projects

EipClient.list_publicips()

hcloud EIP ListPublicips/v2 --cli-region=<region>

List all EIPs

EipClient.show_publicip()

hcloud EIP ShowPublicip/v2 --publicip_id=<id>

Get EIP details

IamClient.keystone_list_projects()

hcloud IAM KeystoneListProjects

List projects

Output format: All commands use

--cli-output=json

for machine-readable output, parsed by

jq

Core Commands

Command	Description	Backend
`list_eips.sh`	List and query EIPs across regions	hcloud CLI
`analyze_idle_eips.sh`	Identify idle/unbound EIPs with cost analysis	hcloud CLI
`eip_cost_report.sh`	Generate HTML/JSON cost analysis reports	hcloud CLI
`monitor_idle_eips.sh`	Set up idle EIP monitoring with alerts	hcloud CLI
`eip_audit_log.sh`	Maintain operation audit logs	Shell
`check_env.sh`	Verify environment prerequisites	Shell
`config.sh`	Load configuration and credentials	Shell

EIP Query

bash

# List all EIPs in a region
bash scripts/list_eips.sh --region cn-north-4

# List EIPs with status filter
bash scripts/list_eips.sh --region cn-north-4 --status DOWN

# List EIPs across multiple regions
bash scripts/list_eips.sh --region cn-north-4,cn-east-3,cn-south-1

Idle EIP Analysis

bash

# Analyze idle EIPs (default threshold: 0 days = all unbound)
bash scripts/analyze_idle_eips.sh

# Custom idle threshold (14 days)
bash scripts/analyze_idle_eips.sh --idle-days 14

# Analyze specific region with JSON output
bash scripts/analyze_idle_eips.sh --region cn-north-4 --idle-days 7 --json

Cost Report

bash

# Generate text cost report (default)
bash scripts/eip_cost_report.sh

# Generate HTML report
bash scripts/eip_cost_report.sh --format html

# Generate JSON report
bash scripts/eip_cost_report.sh --format json

# Custom region
bash scripts/eip_cost_report.sh --region cn-east-3 --format html

Cost Model: Bandwidth-based pricing (~3 CNY/Mbps/month for cn-north-4 on-demand) + IP retain fee (~0.02 CNY/hour for unbound EIPs). API does not return

charge_mode

, so all estimates use bandwidth billing model.

Idle EIP Monitoring

bash

# Monitor idle EIPs (default threshold: 7 days)
bash scripts/monitor_idle_eips.sh

# Custom threshold
bash scripts/monitor_idle_eips.sh --idle-days 14

# Monitor with webhook alert (only DingTalk/WeCom/Slack HTTPS URLs are allowed)
bash scripts/monitor_idle_eips.sh --idle-days 7 --webhook "https://oapi.dingtalk.com/robot/send?access_token=YOUR_ACCESS_TOKEN"

# Monitor with email alert
bash scripts/monitor_idle_eips.sh --idle-days 7 --email admin@example.com

# Set up daily cron job (9:00 AM) - REQUIRES webhook or email, otherwise it's rejected.
# The cron line embeds the alert parameters so scheduled runs actually notify.
bash scripts/monitor_idle_eips.sh --region cn-north-4 --idle-days 7 --setup-cron \
  --webhook "https://oapi.dingtalk.com/robot/send?access_token=YOUR_ACCESS_TOKEN"

# Remove cron job
bash scripts/monitor_idle_eips.sh --remove-cron

Environment Check

bash

# Full environment validation (CLI + tools + API)
bash scripts/check_env.sh

# Verbose mode (show versions)
bash scripts/check_env.sh --verbose

# Auto-fix missing dependencies
bash scripts/check_env.sh --fix

Operation Audit Logging

bash

# Log an EIP list operation
bash scripts/eip_audit_log.sh --action list --detail "Queried all EIPs"

# Log an analyze operation
bash scripts/eip_audit_log.sh --action analyze --detail "Idle EIP analysis for cn-north-4"

# Export audit logs to CSV
bash scripts/eip_audit_log.sh --action list --export csv

# Export audit logs to JSON
bash scripts/eip_audit_log.sh --action list --export json

# Custom log directory (must NOT be a system dir; will be created if missing)
bash scripts/eip_audit_log.sh --action list --log-dir ~/eip_audit_logs

# Query audit history for the last 30 days
bash scripts/eip_audit_log.sh --action query-log --days 30

# Query audit history for a specific action type
bash scripts/eip_audit_log.sh --action query-log --days 7

Audit Log Entry Format (JSONL, timezone-aware timestamps):

json

{
  "timestamp": "2026-07-16T10:30:00+08:00",
  "region": "cn-north-4",
  "action": "list",
  "detail": "Queried all EIPs",
  "user": "root"
}

KooCLI Command Format

bash

# General format
hcloud <Service> <Operation> --cli-region=<region> --param1=value1 --param2=value2

# EIP list example
hcloud EIP ListPublicips/v2 --cli-region=cn-north-4

# EIP show detail
hcloud EIP ShowPublicip/v2 --cli-region=cn-north-4 --publicip_id=<id>

| Feature | Description | Example | |---------|-------------|---------|| | Service name | Uppercase PascalCase |

EIP

VPC

IAM

| | Operation name | PascalCase with version |

ListPublicips/v2

ShowPublicip/v2

| | Region param |

--cli-region=<value>

--cli-region=cn-north-4

| | Simple param |

--key=value

--publicip_id=xxx

| | Output format |

--cli-output=json

| JSON output for programmatic parsing |

Parameters

Shell Script Parameters

Script	Parameter	Required/Optional	Description	Default
`list_eips.sh`	`--region`	Optional	Region(s), comma-separated	`HW_REGION_NAME` or `cn-north-4`
`list_eips.sh`	`--status`	Optional	Filter by status (ACTIVE/DOWN/ERROR)	All
`analyze_idle_eips.sh`	`--region`	Optional	Target region	`HW_REGION_NAME` or `cn-north-4`
`analyze_idle_eips.sh`	`--idle-days`	Optional	Idle threshold in days	`0` (all unbound)
`analyze_idle_eips.sh`	`--json`	Optional	Output JSON format report	`false`
`eip_cost_report.sh`	`--region`	Optional	Target region	`HW_REGION_NAME` or `cn-north-4`
`eip_cost_report.sh`	`--format`	Optional	Output format: text/html/json	`text`
`monitor_idle_eips.sh`	`--region`	Optional	Target region	`HW_REGION_NAME` or `cn-north-4`
`monitor_idle_eips.sh`	`--idle-days`	Optional	Idle threshold in days	`7`
`monitor_idle_eips.sh`	`--webhook`	Optional	Webhook alert URL	-
`monitor_idle_eips.sh`	`--email`	Optional	Alert email address	-
`monitor_idle_eips.sh`	`--setup-cron`	Optional	Set up cron monitoring	-
`monitor_idle_eips.sh`	`--remove-cron`	Optional	Remove cron monitoring	-
`check_env.sh`	`--verbose`	Optional	Show detailed check info	`false`
`check_env.sh`	`--fix`	Optional	Auto-fix missing dependencies	`false`
`eip_audit_log.sh`	`--action`	Required	Operation type (list/query/analyze/monitor/report)	-
`eip_audit_log.sh`	`--detail`	Optional	Operation detail description	-
`eip_audit_log.sh`	`--export`	Optional	Export format: csv/json	-
`eip_audit_log.sh`	`--log-dir`	Optional	Log directory path	`./eip_audit_logs`

Environment Variables

Variable	Required	Description	Default
`HW_ACCESS_KEY`	Optional*	Huawei Cloud AK (required only if hcloud configure not set)	-
`HW_SECRET_KEY`	Optional*	Huawei Cloud SK (required only if hcloud configure not set)	-
`HW_REGION_NAME`	Optional	Default region	`cn-north-4`
`HW_SECURITY_TOKEN`	Optional	Temporary credential token	-

*When
hcloud configure
is already set up,
HW_ACCESS_KEY
and
HW_SECRET_KEY
are not needed. Environment variables take precedence when both are configured.

Output Format

EIP List Output

text

========================================
Huawei Cloud EIP List (Region: cn-north-4)
========================================
EIP ID: eip-xxx1, IP: 123.45.67.89, BW: 5 Mbps, Status: BOUND (ECS: ecs-xxx)
EIP ID: eip-xxx2, IP: 98.76.54.32, BW: 10 Mbps, Status: UNBOUND ⚠️
========================================
Total: 2 EIPs, Idle: 1

Cost Report Output

Generated by

scripts/eip_cost_report.sh

— includes:

Summary statistics (total EIPs, idle, active, total bandwidth, costs)
Per-EIP detail table with cost estimates
Available in text, HTML, and JSON formats

Pricing Model: Bandwidth-based (~3 CNY/Mbps/month + 0.02 CNY/hr IP retain fee for unbound EIPs)

Verification

Environment Compliance Check

bash

# Run full environment check (CLI + tools + API)
bash scripts/check_env.sh

# Exit codes:
#   0 - All checks passed
#   1 - Missing dependencies or API errors

Best Practices

Use Shell Scripts EXCLUSIVELY: All scripts are Shell + hcloud CLI. No Python SDK dependency.
Regular Monitoring: Set up daily cron jobs with
```
monitor_idle_eips.sh --setup-cron
```
to catch idle EIPs early
Cost Reports: Generate weekly cost reports with
```
eip_cost_report.sh --format html
```
to track optimization progress
Audit Logging: Enable audit logging for all EIP operations using
```
eip_audit_log.sh
```
Multi-Region List:
```
list_eips.sh
```
supports comma-separated regions
```
--region cn-north-4,cn-east-3
```
for cross-region listing. Note:
```
analyze_idle_eips.sh
```
,
```
eip_cost_report.sh
```
, and
```
monitor_idle_eips.sh
```
process a single region each (run once per region for multi-region analysis).
Webhook Alerts: Configure webhooks for real-time idle EIP notifications
Environment Validation: Always run
```
check_env.sh
```
first to verify hcloud CLI and dependencies
Idle Days Consistency: Both
```
analyze_idle_eips.sh
```
and
```
monitor_idle_eips.sh
```
use
```
--idle-days
```
parameter with consistent timezone handling

References

Document	Description
IAM Permission Policies	Required permissions and policy JSON
EIP API Guide	EIP API reference (hcloud CLI)
CLI Installation Guide	hcloud CLI install, configure, troubleshoot
Verification Method	Step-by-step verification
Acceptance Criteria	Production readiness acceptance tests

Notes

Cost estimates are for reference only — based on cn-north-4 on-demand pricing (bandwidth model: ~3 CNY/Mbps/month + 0.02 CNY/hr IP retain fee). Actual costs may vary by region and billing mode.
API does not return charge_mode — scripts cannot distinguish bandwidth vs traffic billing; all estimates use bandwidth model.
This skill is READ-ONLY — it analyzes and reports idle EIPs but does NOT release or delete any resources. Manual action in the console is required to release EIPs.
EIP release is irreversible — if you choose to release idle EIPs based on the analysis report, the public IP address will be reclaimed and cannot be recovered.
AK/SK must never be hardcoded — credentials should only be obtained via environment variables (
```
HW_ACCESS_KEY
```
,
```
HW_SECRET_KEY
```
) or
```
hcloud configure
```
interactive mode (entering via prompts, not command-line arguments).
hcloud CLI is the only supported method — all scripts use hcloud CLI (KooCLI) natively.
Authentication: Use environment variables (
```
HW_ACCESS_KEY
```
,
```
HW_SECRET_KEY
```
) as the primary method. If
```
hcloud configure
```
is already set up interactively, the skill will detect and use those credentials. Never pass credentials as command-line arguments.
Temporary Credentials Supported: This skill supports temporary AK/SK+Token obtained via IAM STS. Set
```
HW_SECURITY_TOKEN
```
when using temporary credentials.
Environment Variable Standard: Uses
```
HW_*
```
prefix for consistency with other Huawei Cloud skills.
jq is required for all scripts that parse hcloud CLI JSON output.
Idle days calculation is timezone-consistent — both analyze and monitor scripts use
```
date
```
command for epoch calculation, eliminating UTC offset issues.
Audit log timestamps are timezone-aware — format
```
YYYY-MM-DDTHH:MM:SS+HH:MM
```
(e.g.,
```
+08:00
```
), not misleading
```
Z
```
suffix.

Common Pitfalls

Pitfall	Symptom	Quick Fix
hcloud not installed	`command not found: hcloud`	Install KooCLI
jq not installed	JSON parse errors	`sudo apt install jq`
bc not installed	Cost calculation errors	`sudo apt install bc`
AK/SK not set	API 401 / credential error	Export `HW_ACCESS_KEY` / `HW_SECRET_KEY` or configure `hcloud` interactively
Wrong region	`❌ API 返回异常`	Use valid region ID (e.g., `cn-north-4` )
Invalid format	`❌ 不支持的格式`	Use text/html/json for `--format`
API rate limit	`429 Too Many Requests`	Add delay between calls

huawei-cloud-eip-cost-optimizer

NPX Install

Tags

SKILL.md Content

Huawei Cloud EIP Cost Optimizer

Overview

Prerequisites

1. CLI Environment Requirements (MANDATORY)

2. Authentication Configuration

Environment Variables

3. Quick Start

4. IAM Permission Requirements

Workflow

Main Steps

EIP Query Workflow

Idle EIP Analysis Workflow

Cost Report Workflow

Idle EIP Monitoring Workflow

Audit Log Workflow

Core Commands

EIP Query

Idle EIP Analysis

Cost Report

Idle EIP Monitoring

Environment Check

Operation Audit Logging

KooCLI Command Format

Parameters

Shell Script Parameters

Environment Variables

Output Format

EIP List Output

Cost Report Output

Verification

Environment Compliance Check

Best Practices

References

Notes

Common Pitfalls