Expanding tests for le-auto, adding Ubuntu test suite (#2548)

* Adding Ubuntu Wily to LEA testing

* Setting up certs correctly for Ubuntu 15.10

* Adding 12.04

* Removing redundant update-ca-certificates from 12.04 le-auto testing script

* Fixing OpenSSL on Precise

* Adding Vivid to le_auto tests

* Cleaning up LEA tests configuration for Trusty

* Ordering LEA test entries in .travis.yml and renaming them correctly

* Removing Ubuntu Vivid

* Refining comments

* Removing Ubuntu Wily since it reached EOL

* Removing .travis.yml duplicates

* Fixing nits

letsencrypt-auto-source/Dockerfile.trusty

@@ -0,0 +1,32 @@
+# For running tests, build a docker image with a passwordless sudo and a trust
+# store we can manipulate.
+
+FROM ubuntu:trusty
+
+# Add an unprivileged user:
+RUN useradd --create-home --home-dir /home/lea --shell /bin/bash --groups sudo --uid 1000 lea
+
+# Let that user sudo:
+RUN sed -i.bkp -e \
+      's/%sudo\s\+ALL=(ALL\(:ALL\)\?)\s\+ALL/%sudo ALL=NOPASSWD:ALL/g' \
+      /etc/sudoers
+
+# Install pip and nose:
+RUN apt-get update && \
+    apt-get -q -y install python-pip && \
+    apt-get clean
+RUN pip install nose
+
+RUN mkdir -p /home/lea/certbot
+
+# Install fake testing CA:
+COPY ./tests/certs/ca/my-root-ca.crt.pem /usr/local/share/ca-certificates/
+RUN update-ca-certificates
+
+# Copy code:
+COPY . /home/lea/certbot/letsencrypt-auto-source
+
+USER lea
+WORKDIR /home/lea
+
+CMD ["nosetests", "-v", "-s", "certbot/letsencrypt-auto-source/tests"]