Support OAuth and update Reboot API alerts

Bumps reboot-api version and adjusts reboot e2e test alerts (#792)
Allow redirection to all .measurementlab.net domains (#793)

v2.48.2

Changes:

• Scrape platform-cluster Prometheus on the prometheus-platform-cluster-basicauth URL

Weekly release

v2.48.0...v2.48.1

• Adds new alert for when a machine has not been rebooted for more than 90d.
• Configures kubernetes-pods scrape job to honor any prometheus.io/port=<port> annotation, which happens to also fix the scrape job for github-receiver so that it only attempts a scrape on port 9990.

Weekly release

• Add wehe dashboard
• Fixes to the pipeline dashboard
• Add NDT access control dashboard
• Add oauth2-proxy and OAuth authentication
• Move HTTP basic authentication for Prometheus to prometheus-basicauth.$PROJECT.measurementlab.net
• Update Rebot version to use the new Prometheus URL

Weekly release

v2.47.5...v2.47.6

• Adds trailing dot to all BBE scrape target to try to avoid the ndots:5 issue.
• Two small alert tweaks.

Weekly release

v2.47.4...v2.47.5

• Upgrades Grafana to v7.3.5
• Restricts OAuth login to Grafana via Google to domains measurementlab.net and google.com

Update reboot-api to v0.6.0

v2.47.4

Bump reboot-api to v0.6.0 (#768)

Weekly release

v2.47.2...v2.47.3

• Configures the reboot-api to connect to DRACs on port 22 (instead of 806).

Weekly release

v2.47.1...v2.47.2

• Adds new stackdriver-exporter deployment that collects and exports user defined logs-based metrics from each project.

Weekly release

• Adds link to alert description on how to resize Prom VM's disk. (#762)
• Fixes various alert descriptions to use valid markdown