Merge pull request yunionio#15558 from silence934/automated-cherry-pi…

…ck-of-#15557-upstream-release-3.10

Automated cherry pick of yunionio#15557: fix(cloudmon): collectStatsMetrics ret is nil

Merge pull request yunionio#15558 from silence934/automated-cherry-pi…

…ck-of-#15557-upstream-release-3.10

Automated cherry pick of yunionio#15557: fix(cloudmon): collectStatsMetrics ret is nil

Merge pull request yunionio#15524 from gouqi11/automated-cherry-pick-…

…of-#15514-upstream-release-3.10

Automated cherry pick of yunionio#15514: fix(cloudmon):add cloudpods metric GetDelayDuration

branch: release/3.9, date: 22120716

branch: release/3.9, date: 22120619

branch: release/3.8, date: 22120609

fix: allow baremetal to specify external tftp server and file (yunion…

…io#15491)

Co-authored-by: Qiu Jian <[email protected]>

branch: release/3.8, date: 22110717

branch: release/3.9, date: 22102816

branch: release/3.9, date: 22102115