simplified DCOS bootstrap deployment

[dmitsh]

• simplified bootstrap deployment
• fixed docker.socket issue on master/agent nodes

[codecov]

Codecov Report

Merging #2864 into master will increase coverage by 0.04%.
The diff coverage is n/a.

@@            Coverage Diff            @@
##           master   #2864      +/-   ##
=========================================
+ Coverage   49.25%   49.3%   +0.04%     
=========================================
  Files          91      91              
  Lines       13823   13803      -20     
=========================================
- Hits         6808    6805       -3     
+ Misses       6384    6368      -16     
+ Partials      631     630       -1

Impacted Files	Coverage Δ
pkg/api/convertertoapi.go	55.73% <0%> (-0.06%)	⬇️
pkg/api/types.go	27.27% <0%> (ø)	⬆️
pkg/api/vlabs/types.go	18.57% <0%> (ø)	⬆️
pkg/openshift/certgen/config.go	40% <0%> (ø)	⬆️
pkg/armhelpers/graph.go	0% <0%> (ø)	⬆️
pkg/api/converterfromapi.go	9.73% <0%> (+0.01%)	⬆️
pkg/acsengine/defaults.go	73.78% <0%> (+0.14%)	⬆️
cmd/deploy.go	25.58% <0%> (+0.98%)	⬆️

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[soccerGB]

The changes look good to me

[soccerGB]

Changes look good to me

[jackfrancis]

lgtm