PR #128 looks up the root credential with account_host = 'localhost',
which never matches under the single root@% account model. Widen the
lookup to account_host IN ('%', 'localhost'), consistent with the
compatibility strategy in deploymentCredentialVars.
- CreateTask now accepts only mysql_root_password; drop
mysql_admin_password and the paired root/admin validation,
keeping the >=16-char length and alphanumeric-only checks
- deploymentCredentialVars extracts mysql_root_password only,
remaining compatible with legacy root@localhost records
- Both delivery playbooks drop xinfra_admin provisioning and
the mysql_admin_password assertion, creating 'root'@'%'
as the remote admin account instead
Wrap task creation in a transaction that locks the business line row (SELECT ... FOR UPDATE) so concurrent requests cannot both pass the availability check. A name is considered occupied by in-flight or retained tasks (pending through registering, finished, register_failed, canceling, rollback_pending/rolling_back/rollback_failed) and by active deployment results; it becomes reusable only after rollback or explicit cleanup releases it.
Introduce a compensating workflow that launches the dedicated AWX
rollback template when a deployment cannot be started or fails midway.
- add task states: rollback_pending, rolling_back, rolled_back,
rollback_failed, rollback_acknowledged
- add RollbackJob model to track the compensating AWX run separately
from the deploy run, preserving both job IDs for audit
- hold resource reservations in 'rollback' status until cleanup
succeeds so a failed cleanup cannot be masked by a later delivery
- poll rollback jobs with a 2-minute launch timeout; an unknown launch
result surfaces as a recoverable failure instead of re-launching
- protect finished/register_failed/rolled-back tasks from rollback;
register_failed keeps the healthy instance and its resource usage
- add DELIVERY_ROLLBACK_TEMPLATE_ID config; without it, failures are
marked rollback_failed and require manual cleanup
- use unique pending-<task_id> placeholder for executor job IDs
- Per-host instance limit (DELIVERY_HOST_INSTANCE_LIMIT, default 4)
- Optional target_host to pin a host from the candidate pool
- Regenerate swagger docs
- 8.0 from Ubuntu archive, 8.4 from MySQL official APT repo
- 5.6/5.7 not supported for now; enforce one MySQL series per host
- Sync Go version whitelist with the playbook package map
- Add topology/port/data_disk, DB options and 8 advanced parameters
with whitelist validation, rendered via extra_vars into the playbook
- Hybrid port allocation over pool 13306-13999
- Tighten bounds: memory 2048-65536 MiB, storage 20-2000 GiB
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