Use builded 16.04 image

.travis.yml

@@ -6,19 +6,18 @@ sudo: required
 language: python
 python:
   - "2.7"
-  - "3.6"
 env:
   - >
     DISTRIBUTION=ubuntu
-    DIST_VERSION=16.04
+    DIST_VERSION=16_04-builded
     MONGODB_VERSION=3.6
   - >
     DISTRIBUTION=ubuntu
-    DIST_VERSION=16.04
+    DIST_VERSION=16_04-builded
     MONGODB_VERSION=3.4
   - >
     DISTRIBUTION=ubuntu
-    DIST_VERSION=16.04
+    DIST_VERSION=16_04-builded
     MONGODB_VERSION=3.2
   - >
     DISTRIBUTION=ubuntu-upstart

tests/Dockerfile.ubuntu_16_04-builded

@@ -0,0 +1,7 @@
+FROM ubuntu:16.04
+
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt update && \
+    apt install --yes python-minimal && \
+    rm /lib/systemd/system/getty@.service

tests/site.yml

@@ -17,14 +17,6 @@
         - mongo2
         - mongo3
 
-- hosts: "{{ target }}"
-  gather_facts: false
-  tasks:
-    - name: Install Python 2.x
-      raw: test -e /usr/bin/python || (apt update && apt install -y python-minimal) || true
-      register: test
-      changed_when: test.stdout
-
 - hosts: "{{ target }}"
   become: no
   gather_facts: yes