Added link.
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Google Cloud
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Load balancer
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https://cloud.google.com/load-balancing/docs/https/traffic-management
Traffic management overview for external HTTP(S) load balancers.
https://cloud.google.com/compute/docs/reference/rest/v1/urlMaps
URL map API.
Health check
============
List health checks::
gcloud compute health-checks list --format=yaml
In order for LB to function you need to define health checks. They run outside of intranet so
firewall rules have to be applied to VMs for checks to succeed::
gcloud compute firewall-rules create fw-allow-health-check \
--network=default \
--action=allow \
--direction=ingress \
--source-ranges=130.211.0.0/22,35.191.0.0/16 \
--target-tags=allow-health-check \
--rules=tcp:80
https://cloud.google.com/load-balancing/docs/health-checks
Creating health checks & magical subnets for FW rules.