refactor(aio): enable `-u` flag on preview server scripts

aio/aio-builds-setup/dockerbuild/scripts-sh/clean-up.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 # Set up env variables
 export AIO_GITHUB_TOKEN=$(head -c -1 /aio-secrets/GITHUB_TOKEN 2>/dev/null)

aio/aio-builds-setup/dockerbuild/scripts-sh/health-check.sh

@@ -1,5 +1,6 @@
 #!/bin/bash
-set +e -o pipefail
+# Using `+e` so that all checks are run and we get a complete report (even if some checks failed).
+set +e -u -o pipefail
 
 
 # Variables

aio/aio-builds-setup/dockerbuild/scripts-sh/init.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 exec >> /var/log/aio/init.log
 exec 2>&1

aio/aio-builds-setup/dockerbuild/scripts-sh/upload-server-prod.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 # Set up env variables for production
 export AIO_GITHUB_TOKEN=$(head -c -1 /aio-secrets/GITHUB_TOKEN 2>/dev/null)

aio/aio-builds-setup/dockerbuild/scripts-sh/upload-server-test.sh

@@ -1,12 +1,11 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 # Set up env variables for testing
 export AIO_BUILDS_DIR=$TEST_AIO_BUILDS_DIR
 export AIO_DOMAIN_NAME=$TEST_AIO_DOMAIN_NAME
 export AIO_GITHUB_ORGANIZATION=$TEST_AIO_GITHUB_ORGANIZATION
 export AIO_GITHUB_TEAM_SLUGS=$TEST_AIO_GITHUB_TEAM_SLUGS
-export AIO_PREVIEW_DEPLOYMENT_TOKEN=$TEST_AIO_PREVIEW_DEPLOYMENT_TOKEN
 export AIO_REPO_SLUG=$TEST_AIO_REPO_SLUG
 export AIO_TRUSTED_PR_LABEL=$TEST_AIO_TRUSTED_PR_LABEL
 export AIO_UPLOAD_HOSTNAME=$TEST_AIO_UPLOAD_HOSTNAME

aio/aio-builds-setup/dockerbuild/scripts-sh/verify-setup.sh

@@ -1,5 +1,5 @@
 #!/bin/bash
-set -e -o pipefail
+set -eu -o pipefail
 
 logFile=/var/log/aio/verify-setup.log
 uploadServerLogFile=/var/log/aio/upload-server-verify-setup.log