provision/docker: fix variable shadowing
provision/docker: fix variable shadowing

cezarsa/tsuru,ggarnier/tsuru,ggarnier/tsuru,tsuru/tsuru,ArxdSilva/tsuru,guilhermebr/tsuru,guilhermebr/tsuru,ggarnier/tsuru,ArxdSilva/tsuru,tsuru/tsuru,tsuru/tsuru,ArxdSilva/tsuru,tsuru/tsuru,cezarsa/tsuru,ggarnier/tsuru,guilhermebr/tsuru,ArxdSilva/tsuru,cezarsa/tsuru,guilhermebr/tsuru,cezarsa/tsuru