NetworkChaos on all address of DNS lookup result

[YangKeao]

Signed-off-by: Yang Keao [email protected]

What problem does this PR solve?

Fix #692

What is changed and how does it work?

Return all results from dns lookup in ResolveCidr

Check List

Tests

• Manual test

Code changes

• Has Go code change

[codecov-commenter]

Codecov Report

Merging #693 into master will decrease coverage by 1.24%.
The diff coverage is 36.12%.

@@            Coverage Diff             @@
##           master     #693      +/-   ##
==========================================
- Coverage   55.78%   54.53%   -1.25%     
==========================================
  Files          68       69       +1     
  Lines        4383     4652     +269     
==========================================
+ Hits         2445     2537      +92     
- Misses       1768     1926     +158     
- Partials      170      189      +19     

Impacted Files	Coverage Δ
api/v1alpha1/networkchaos_types.go	22.98% <ø> (ø)
api/v1alpha1/podchaos_types.go	37.14% <ø> (ø)
controllers/networkchaos/netem/utils.go	0.00% <0.00%> (ø)
pkg/chaosdaemon/netlink_linux.go	0.00% <0.00%> (ø)
pkg/chaosdaemon/stress_server_linux.go	0.00% <0.00%> (ø)
pkg/chaosdaemon/tc_linux.go	42.85% <0.00%> (ø)
pkg/utils/chaosdaemon.go	51.21% <0.00%> (ø)
pkg/utils/grpc.go	0.00% <0.00%> (ø)
pkg/webhook/inject/inject.go	73.49% <0.00%> (-0.68%)	⬇️
pkg/chaosdaemon/util.go	72.48% <9.09%> (-10.60%)	⬇️
... and 15 more

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[zhouqiang-cl]

LGTM

[cwen0]

LGTM

[cwen0]

/merge

[ti-srebot]

/run-all-tests