Enable Azure integration test on Travis CI

Note: the tests are run against the Azurite [1] local emulator for Azure
Blob Storage and not against a live service.

[1] https://github.com/azure/azurite

scripts/ci/before_install.sh

@@ -17,3 +17,10 @@ ssh-keyscan 0.0.0.0 >> ~/.ssh/known_hosts
 ssh 0.0.0.0 ls &> /dev/null
 ssh 127.0.0.1 ls &> /dev/null
 ssh localhost ls &> /dev/null
+
+scriptdir="$(dirname $0)"
+
+if [ -n "$TRAVIS_OS_NAME" ] && [ "$TRAVIS_OS_NAME" != "osx" ]; then
+  bash "$scriptdir/install_azurite.sh"
+  source ~/.bashrc
+fi

scripts/ci/install_azurite.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+set -euo pipefail
+
+# install docker
+export DEBIAN_FRONTEND=noninteractive
+curl -fsSL https://download.docker.com/linux/ubuntu/gpg | sudo apt-key add -
+sudo add-apt-repository "deb [arch=amd64] https://download.docker.com/linux/ubuntu $(lsb_release -cs) stable"
+sudo apt-get update
+sudo apt-get install -y docker-ce
+
+# run azurite
+sudo docker run --restart always -e executable=blob -p 10000:10000 --tmpfs /opt/azurite/folder -d arafato/azurite:2.6.5
+
+# save secrets
+echo "export AZURE_STORAGE_CONTAINER_NAME='travis-tests'" >> ~/.bashrc
+echo "export AZURE_STORAGE_CONNECTION_STRING='DefaultEndpointsProtocol=http;AccountName=devstoreaccount1;AccountKey=Eby8vdM02xNOcqFlqUwJPLlmEtlCDXJ1OUzFT50uSRZ6IFsuFq2UVErCz4I6tq/K1SZFPTOtr/KBHBeksoGMGw==;BlobEndpoint=http://127.0.0.1:10000/devstoreaccount1;'" >> ~/.bashrc