Category: service

Application Load Balancer (ALB)

Use this skill for end-to-end ALB operations via local Python scripts and OpenAPI-compatible workflows.

Validation

mkdir -p output/alicloud-network-alb for f in skills/network/slb/alicloud-network-alb/scripts/*.py; do python3 -m py_compile "$f" done echo "py_compile_ok" > output/alicloud-network-alb/validate.txt

Pass criteria: command exits 0 and output/alicloud-network-alb/validate.txt is generated.

Output And Evidence

• Save all command outputs, request parameters, and API responses under output/alicloud-network-alb/ .

• For change operations, keep before/after snapshots plus health-check results.

Prerequisites

pip install alibabacloud_alb20200616 alibabacloud_tea_openapi alibabacloud_credentials

Credential priority:

• ALICLOUD_ACCESS_KEY_ID / ALICLOUD_ACCESS_KEY_SECRET

• Optional STS token: ALICLOUD_SECURITY_TOKEN

• Shared config: ~/.alibabacloud/credentials

Workflow

• Confirm region, VPC context, target ALB resource IDs, and expected change window.

• Run inventory scripts first (list_* , get_* ) and save baseline outputs.

• Apply one change at a time (listener/server-group/rule/lb lifecycle).

• Wait for async completion when needed (scripts/wait_for_job.py ).

• Validate final state with health checks and state re-query.

Top task playbooks

1. Read-only inventory and quick diagnosis

python3 scripts/list_instances.py --region cn-hangzhou --json --output output/alicloud-network-alb/instances.json python3 scripts/list_server_groups.py --region cn-hangzhou --json --output output/alicloud-network-alb/server-groups.json python3 scripts/list_acls.py --region cn-hangzhou --json --output output/alicloud-network-alb/acls.json

2. Inspect one ALB and listener details

python3 scripts/get_instance_status.py --region cn-hangzhou --lb-id alb-xxx --view detail --output output/alicloud-network-alb/lb-detail.json python3 scripts/list_listeners.py --region cn-hangzhou --lb-id alb-xxx --json --output output/alicloud-network-alb/listeners.json python3 scripts/get_listener_attribute.py --region cn-hangzhou --listener-id lsn-xxx --output output/alicloud-network-alb/listener-attr.json

3. Validate traffic path health

python3 scripts/check_health_status.py --region cn-hangzhou --listener-id lsn-xxx --output output/alicloud-network-alb/health.json python3 scripts/list_server_group_servers.py --region cn-hangzhou --server-group-id sgp-xxx --output output/alicloud-network-alb/server-group-members.json

4. Controlled change flow (example: update listener)

python3 scripts/update_listener.py --region cn-hangzhou --listener-id lsn-xxx --request-timeout 120 --output output/alicloud-network-alb/update-listener.json python3 scripts/check_health_status.py --region cn-hangzhou --listener-id lsn-xxx --output output/alicloud-network-alb/health-after-update.json

5. Resource lifecycle operations

• ALB lifecycle: create_load_balancer.py , delete_load_balancer.py , deletion_protection.py

• Listener lifecycle: create_listener.py , start_listener.py , stop_listener.py , delete_listener.py

• Server-group lifecycle: create_server_group.py , add_servers.py , remove_servers.py , delete_server_group.py

• Rule lifecycle: create_rule.py , update_rule.py , delete_rule.py

References

• API quick map: references/api_quick_map.md

• Script catalog: references/scripts_catalog.md

• Troubleshooting: references/troubleshooting.md

• Logs and analysis: references/log-analysis.md

• Dependencies/order: references/resource-dependencies.md

• Sources: references/sources.md