Include basic python selenium tests inside the image + Travis

Author: elgalu

.travis.yml

@@ -0,0 +1,36 @@
+sudo: required
+
+services:
+  - docker
+
+env:
+  - TEST_SLEEPS="0.7"
+
+# Note: When I try to map ports `-p ${SELENIUM_HUB_PORT}:${SELENIUM_HUB_PORT}`
+#   I get Error response from daemon: Cannot start container 9da9d7a1176:
+#   failed: iptables --wait -t filter -A DOCKER ! -i docker0 -o docker0
+#   -p tcp -d 172.17.0.1 --dport 24444 -j ACCEPT:
+#   iptables: No chain/target/match by that name. (exit status 1)
+before_install:
+  - docker build -t selenium .
+
+install:
+  - docker run --name=grid -d -e VIDEO=true -v /dev/shm:/dev/shm selenium
+  - docker exec -ti grid wait_all_done 40s
+  - docker exec grid versions
+  - docker exec grid errors || true
+  - docker logs grid
+
+# Note: If we try to use `--net` Travis fails with System error: permission denied
+# Note: If we try to use `--link` Selenium fails with ConnectionRefusedError after
+#  connect to selenium at http://172.17.0.4:24444/wd/hub
+# Unless, we use `--privileged` trick by Hiro Asari from Travis Corp.
+script:
+  - docker exec -ti grid test
+  - docker cp grid:/test/console.png images/grid_console.png
+
+# cleanup though doesn't seem to be necessary in Travis infra
+after_script:
+  - docker exec grid stop || true
+  - docker stop grid || true
+  - docker rm grid || true