Add backup/restore integration tests (#2012)

* add backup/restore integration tests

_integration-test/ensure-backup-restore-works.sh

@@ -0,0 +1,34 @@
+#!/usr/bin/env bash
+set -ex
+
+source install/_lib.sh
+source install/dc-detect-version.sh
+
+echo "${_group}Test that backup/restore works..."
+echo "Creating backup..."
+# Docker was giving me permissioning issues when trying to create this file and write to it even after giving read + write access
+# to group and owner. Instead, try creating the empty file and then give everyone write access to the backup file
+touch $(pwd)/sentry/backup.json
+chmod 666 $(pwd)/sentry/backup.json
+# Command here matches exactly what we have in our docs https://develop.sentry.dev/self-hosted/backup/#backup
+docker-compose run -v $(pwd)/sentry:/sentry-data/backup --rm -T -e SENTRY_LOG_LEVEL=CRITICAL web export /sentry-data/backup/backup.json
+# Check to make sure there is content in the file
+if [ ! -s "$(pwd)/sentry/backup.json" ]; then
+  echo "Backup file is empty"
+  exit 1
+fi
+
+# Bring postgres down and recreate the docker volume
+docker-compose stop postgres
+sleep 5
+docker-compose rm -f -v postgres
+docker volume rm sentry-postgres
+export SKIP_USER_CREATION=1
+source install/create-docker-volumes.sh
+source install/set-up-and-migrate-database.sh
+docker-compose up -d
+
+echo "Importing backup..."
+docker-compose run --rm -T web import /etc/sentry/backup.json
+
+rm $(pwd)/sentry/backup.json

integration-test.sh

@@ -10,6 +10,7 @@ echo "Testing initial install"
 ./install.sh
 _integration-test/run.sh
 _integration-test/ensure-customizations-not-present.sh
+_integration-test/ensure-backup-restore-works.sh
 
 echo "Make customizations"
 cat <<EOT >sentry/enhance-image.sh
@@ -25,3 +26,4 @@ echo "Testing in-place upgrade and customizations"
 ./install.sh --minimize-downtime
 _integration-test/run.sh
 _integration-test/ensure-customizations-work.sh
+_integration-test/ensure-backup-restore-works.sh