Run shippable tests in unprivileged containers. (#16481)

* Run shippable tests in unprivileged containers.

shippable.yml

@@ -22,8 +22,8 @@ matrix:
     - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:fedora-rawhide
     - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:fedora23
     - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:opensuseleap
-    - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:ubuntu1204 PRIVILEGED=true
-    - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:ubuntu1404 PRIVILEGED=true
+    - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:ubuntu1204
+    - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:ubuntu1404
     - env: TEST=integration TARGET=non_destructive IMAGE=ansible/ansible:ubuntu1604
 
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:centos6
@@ -31,8 +31,8 @@ matrix:
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:fedora-rawhide
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:fedora23
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:opensuseleap
-    - env: TEST=integration TARGET=other IMAGE=ansible/ansible:ubuntu1204 PRIVILEGED=true
-    - env: TEST=integration TARGET=other IMAGE=ansible/ansible:ubuntu1404 PRIVILEGED=true
+    - env: TEST=integration TARGET=other IMAGE=ansible/ansible:ubuntu1204
+    - env: TEST=integration TARGET=other IMAGE=ansible/ansible:ubuntu1404
     - env: TEST=integration TARGET=other IMAGE=ansible/ansible:ubuntu1604
 
     - env: TEST=sanity INSTALL_DEPS=1 TOXENV=py24
@@ -49,6 +49,8 @@ matrix:
     - env: TEST=code-smell INSTALL_DEPS=1
       python: 2.7
 build:
+  pre_ci_boot:
+    options: "--privileged=false --net=bridge"
   ci:
     - test/utils/shippable/ci.sh