In this post you’ll learn how to setup path redirects for a GCP Global Load balancer using a simple example that can be easily applied to your use case.
Cheat Sheet:
The following commands illustrate the basic steps to pull (export from GCP), edit, and push (import to GCP) your load balancer config.
MY_GLOBAL_LB_NAME=<your-lb-name>
# Step 1: pull the yaml and save it as lb-map-config.yaml
gcloud compute url-maps export $MY_GLOBAL_LB_NAME --destination=lb-map-config.yaml --global
# Step 2: Edit the yaml ... (see example below)
# Step 3: push the yaml back to GCP
gcloud compute url-maps import $MY_GLOBAL_LB_NAME --global --source=lb-map-config.yamlExample with redirects:
defaultService: https://www.googleapis.com/compute/v1/projects/...
hostRules:
- hosts:
- example.com
pathMatcher: path-matcher-2
kind: compute#urlMap
name: my-global-lb
pathMatchers:
- defaultService: https://www.googleapis.com/compute/v1/projects/...
name: path-matcher-2
pathRules:
- paths:
- /hi/*
service: https://www.googleapis.com/compute/v1/projects/...
#######################
### REDIRECTS BEGIN ###
#######################
- paths:
- /hello/*
- /hello
urlRedirect:
pathRedirect: "/hi/"
#####################
### REDIRECTS END ###
#####################
selfLink: https://www.googleapis.com/compute/v1/projects/...References:
The following links will give you some background information.
- https://cloud.google.com/load-balancing/docs/url-map-concepts#url-redirects
- https://cloud.google.com/load-balancing/docs/https/setting-up-global-traffic-mgmt#configure_a_url_redirect
Acknowledgements:
I’d like to acknowledge Joey and Joe for tag teaming with me for the underlying sleuthing.
