Fixes lp:1638706 azure tests fail on non amd64
Fixes lp:1638706 azure tests fail on non amd64

(cherry picked from commit cd17ec25af0f9dde0bd600a3f28bb4ad074ac793)

mikemccracken/juju,ericsnowcurrently/juju,reedobrien/juju,mjs/juju,ericsnowcurrently/juju,waigani/juju,mjs/juju,anastasiamac/juju,bac/juju,ericsnowcurrently/juju,marcmolla/juju,marcmolla/juju,mjs/juju,ericsnowcurrently/juju,alesstimec/juju,anastasiamac/juju,mjs/juju,bac/juju,anastasiamac/juju,bac/juju,frankban/juju,mjs/juju,mjs/juju,anastasiamac/juju,bac/juju,marcmolla/juju,mikemccracken/juju,alesstimec/juju,alesstimec/juju,marcmolla/juju,AdamIsrael/juju,alesstimec/juju,mikemccracken/juju,reedobrien/juju,reedobrien/juju,anastasiamac/juju,AdamIsrael/juju,frankban/juju,mikemccracken/juju,bac/juju,AdamIsrael/juju,waigani/juju,waigani/juju,waigani/juju,reedobrien/juju,mjs/juju,frankban/juju,frankban/juju,marcmolla/juju,ericsnowcurrently/juju,AdamIsrael/juju,mikemccracken/juju,frankban/juju,reedobrien/juju,alesstimec/juju