fix node e2e test

[zhuangqh]

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

Ⅰ. Describe what this PR did

Ⅱ. Does this pull request fix one issue?

Ⅲ. Why don't you add test cases (unit test/integration test)? (你真的觉得不需要加测试吗？)

Ⅳ. Describe how to verify it

Ⅴ. Special notes for reviews

[pouchrobot]

Thanks for your contribution. 🍻 @zhuangqh
While we thought PR TITLE could be more specific, longer than 20 chars.
Please edit this PR title instead of opening a new one.
More details, please refer to https://github.com/alibaba/pouch/blob/master/CONTRIBUTING.md

[codecov]

Codecov Report

Merging #2991 into master will increase coverage by 1.25%.
The diff coverage is 100%.

@@            Coverage Diff             @@
##           master    #2991      +/-   ##
==========================================
+ Coverage   66.74%   67.99%   +1.25%     
==========================================
  Files         291      291              
  Lines       18655    18660       +5     
==========================================
+ Hits        12451    12688     +237     
+ Misses       4719     4488     -231     
+ Partials     1485     1484       -1

Flag	Coverage Δ
#criv1alpha2_test	34.52% <91.66%> (+0.03%)	⬆️
#integration_test_0	36.4% <91.66%> (+0.02%)	⬆️
#integration_test_1	35.43% <91.66%> (-0.01%)	⬇️
#integration_test_2	36.47% <91.66%> (+0.11%)	⬆️
#integration_test_3	35.79% <91.66%> (-0.01%)	⬇️
#node_e2e_test	33.96% <100%> (?)
#unittest	26.68% <0%> (-0.01%)	⬇️

Impacted Files	Coverage Δ
daemon/mgr/container_utils.go	76.21% <100%> (+1.08%)	⬆️
daemon/logger/jsonfile/utils.go	71.54% <0%> (-1.63%)	⬇️
ctrd/image.go	69.11% <0%> (+0.73%)	⬆️
daemon/mgr/container.go	60.69% <0%> (+0.89%)	⬆️
daemon/mgr/spec_linux.go	79.26% <0%> (+1.33%)	⬆️
daemon/mgr/container_stats.go	71.66% <0%> (+2.22%)	⬆️
daemon/mgr/spec_mount.go	92.3% <0%> (+2.56%)	⬆️
cri/stream/remotecommand/httpstream.go	46.63% <0%> (+2.59%)	⬆️
daemon/logger/jsonfile/encode.go	81.52% <0%> (+3.26%)	⬆️
daemon/logger/crilog/log.go	81.94% <0%> (+5.55%)	⬆️
... and 6 more

[fuweid]

ping @zhuangqh , I think we missing a patch here for nil panic issue. could you update the pr in time? Thanks

panic: interface conversion: interface {} is nil, not *mgr.Container
goroutine 12163 [running]:
github.com/alibaba/pouch/daemon/mgr.(*ContainerManager).container(0xc0003f9680, 0xc001166d00, 0x40, 0x40, 0x2254f60, 0x1)
  /home/travis/gopath/src/github.com/alibaba/pouch/daemon/mgr/container_utils.go:62 +0x2d9
github.com/alibaba/pouch/daemon/mgr.(*ContainerManager).Get(0xc0003f9680, 0x262e4a0, 0xc001bb18c0, 0xc001166d00, 0x40, 0xc0001205a0, 0x0, 0x0)
  /home/travis/gopath/src/github.com/alibaba/pouch/daemon/mgr/container.go:583 +0x6a
github.com/alibaba/pouch/cri/v1alpha2.(*CriManager).ListPodSandbox(0xc0004b1130, 0x262e4a0, 0xc001bb18c0, 0xc0004867f0, 0x0, 0x0, 0x0)
  /home/travis/gopath/src/github.com/alibaba/pouch/cri/v1alpha2/cri.go:697 +0x276
github.com/alibaba/pouch/cri/apis/v1alpha2._RuntimeService_ListPodSandbox_Handler.func1(0x262e4a0, 0xc001bb18c0, 0x223efa0, 0xc0004867f0, 0x23525e1, 0x14, 0x234359f, 0xa)
  /home/travis/gopath/src/github.com/alibaba/pouch/cri/apis/v1alpha2/api.pb.go:4678 +0x86
github.com/alibaba/pouch/pkg/grpc/interceptor.PayloadUnaryServerInterceptor.func1(0x262e4a0, 0xc001bb18c0, 0x223efa0, 0xc0004867f0, 0xc000b7e820, 0xc000b7e840, 0x2388aff, 0x1f, 0x2388b1f, 0xe)
  /home/travis/gopath/src/github

[fuweid]

LGTM