yurtappdaemon control null process

[huiwq1990]

Signed-off-by: huiwq1990 huiwq1990@163.com

What type of PR is this?

Uncomment only one /kind <> line, hit enter to put that in a new line, and remove leading whitespace from that line: /kind bug /kind documentation /kind enhancement /kind good-first-issue /kind feature /kind question /kind design /sig ai /sig iot /sig network /sig storage /sig storage

What this PR does / why we need it:

As we currently not support statefulset, the control of statefulset template maybe nil.

Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?

other Note

[codecov[bot]]

Codecov Report

Merging #84 (d1fa0f2) into master (cdd3a0c) will not change coverage. The diff coverage is n/a.

@@          Coverage Diff           @@
##           master     #84   +/-   ##
======================================
  Coverage    7.78%   7.78%           
======================================
  Files          17      17           
  Lines        1901    1901           
======================================
  Hits          148     148           
  Misses       1724    1724           
  Partials       29      29           

Flag	Coverage Δ
unittests	7.78% <ø> (ø)

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[rambohe-ch]

/lgtm /approve

[openyurt-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: huiwq1990, rambohe-ch

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Needs approval from an approver in each of these files: - ~~[OWNERS](https://github.com/openyurtio/yurt-app-manager/blob/master/OWNERS)~~ [rambohe-ch] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment