refactor: correct hard coding in several shell script

[zhuangqh]

Signed-off-by: zhuangqh zhuangqhc@163.com

Ⅰ. Describe what this PR did

Correct hard coding in several shell script, using configurable variable instead.
Fix a minor bug in #1447

Ⅱ. Does this pull request fix one issue?

Ⅲ. Describe how you did it

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[allencloud]

I am wondering if we could directly use CONTAINERD_VERSION rather than REQUIRED_CONTAINERD_VERSION ?

Or add some annotation for both two variables and tell code readers the difference between them.

[zhuangqh]

CONTAINERD_VERSION is the version of containerd installed in this machine, getting from command containerd -v .... If CONTAINERD_VERSION not equals to required version, this script will install the required version.
Maybe we can change CONTAINERD_VERSION to CURRENT_CONTAINERD_VERSION for better semantics? @allencloud

[allencloud]

From your explanation, I have got what you mean. While I think it is OK for the variables, but there is still some comment required in the script. WDYT?

[zhuangqh]

You are right. First reading these code may be confused, I've added a comment in next commit. @allencloud

[allencloud]

It happens to be error exists in critools testing, @starnop . Actually it says that there is one failure in the critools testing. However, I think it is quite hard for me to judge which one is failing. Is there any way for the critools to show explicit error case.

In addition, I retrigger the critools testing to check if this is a flaky test. I have to say in the future we need to pay more attention on the flaky test in CRI part. It is quite important to be related with the stability of Pouchd.

[codecov-io]

Codecov Report

Merging #1452 into master will decrease coverage by 1.5%.
The diff coverage is n/a.

@@            Coverage Diff             @@
##           master    #1452      +/-   ##
==========================================
- Coverage   40.05%   38.54%   -1.51%     
==========================================
  Files         249      250       +1     
  Lines       16179    17057     +878     
==========================================
+ Hits         6480     6575      +95     
- Misses       8880     9635     +755     
- Partials      819      847      +28

Impacted Files	Coverage Δ
apis/server/container_bridge.go	53.8% <0%> (-29.01%)	⬇️
daemon/mgr/container_utils.go	51.07% <0%> (-28.32%)	⬇️
apis/server/volume_bridge.go	63.1% <0%> (-23.38%)	⬇️
apis/server/network_bridge.go	44.87% <0%> (-18.44%)	⬇️
daemon/mgr/container.go	36.27% <0%> (-13.73%)	⬇️
apis/server/utils.go	49.09% <0%> (-12.03%)	⬇️
ctrd/image.go	76.57% <0%> (-2.86%)	⬇️
daemon/containerio/container_io.go	57.79% <0%> (-1.95%)	⬇️
pkg/system/cgroup.go	87.09% <0%> (ø)
daemon/mgr/network.go	69.28% <0%> (+0.49%)	⬆️

[allencloud]

LGTM