feat: adjust application variable init

[B15030328]

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[codecov-commenter]

Codecov Report

Merging #708 (2e5eca4) into master (dd467f0) will decrease coverage by 0.10%.
The diff coverage is 100.00%.

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@@            Coverage Diff             @@
##           master     #708      +/-   ##
==========================================
- Coverage   53.42%   53.33%   -0.10%     
==========================================
  Files         191      191              
  Lines       10543    10544       +1     
==========================================
- Hits         5633     5624       -9     
- Misses       4484     4497      +13     
+ Partials      426      423       -3     

Impacted Files	Coverage Δ
pkg/env.go	62.22% <ø> (-0.83%)	⬇️
pkg/pkg.go	57.97% <100.00%> (+2.74%)	⬆️
pkg/util/xdebug/testing.go	19.44% <0.00%> (-22.23%)	⬇️
pkg/util/xstring/json.go	67.85% <0.00%> (-10.72%)	⬇️
pkg/client/redis/client.go	78.02% <0.00%> (-3.30%)	⬇️
pkg/registry/etcdv3/registry.go	72.26% <0.00%> (+1.02%)	⬆️

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