Merge ~pwlars/snappy-hwe-snaps/+git/jenkins-jobs:sudo-debconf-set-selections into ~snappy-hwe-team/snappy-hwe-snaps/+git/jenkins-jobs:master

[Paul Larson]

oops, sudo needed. This works, for the package install, but I did notice that it seems to fail on the pip stuff later - http_proxy is likely needed for that

[System Enablement Bot (system-enablement-ci-bot)]

PASSED: Continuous integration, rev:cc461799fd4a833d21fc3e2688df415766d5f01b
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1871/
Executed test runs:
    SUCCESS: https://jenkins.canonical.com/system-enablement/job/generic-build-snap-worker/2943
    None: https://jenkins.canonical.com/system-enablement/job/generic-update-snap-mp/1779/console
    SUCCESS: https://jenkins.canonical.com/system-enablement/job/generic-test-snap/3224

Click here to trigger a rebuild:
https://jenkins.canonical.com/system-enablement/job/generic-build-snap/1871/rebuild

review: Approve (continuous-integration)

[Jim Hodapp (jhodapp)]

review: Approve

[Simon Fels (morphis)]

LGTM

review: Approve

diff --git a/jobs/infrastructure/prepare-0-install.sh b/jobs/infrastructure/prepare-0-install.sh
index a41e811..1ec2212 100644
--- a/jobs/infrastructure/prepare-0-install.sh
+++ b/jobs/infrastructure/prepare-0-install.sh
@@ -23,8 +23,8 @@ sudo add-apt-repository --yes ppa:snappy-hwe-team/ci-tools
 
 sudo apt-get update
 
-echo "postfix postfix/mailname string $(hostname)" | debconf-set-selections
-echo  "postfix postfix/main_mailer_type string 'Internet Site'" | debconf-set-selections
+echo "postfix postfix/mailname string $(hostname)" | sudo debconf-set-selections
+echo  "postfix postfix/main_mailer_type string 'Internet Site'" | sudo debconf-set-selections
 
 sudo apt-get install --yes \
     git \