Cleanup script for Google Cloud Functions with Redis and VPC Connector example

delete-redis-vpc-cloud-function.sh

#!/usr/bin/env bash

# Reference: https://gist.github.com/mikesparr/8985378640242d8e453cc2212509814d 

# set these to your specific environment
export PROJECT_ID=db-cluster-tests
export REDIS_INSTANCE=myinstance
export REDIS_VERSION="redis_4_0"
export GCP_REGION=us-central1
export GCP_NETWORK=default
export VPC_CONNECTOR=redis-vpc-conn
export VPC_RANGE="10.8.0.0/28"
export FUNCTION_NAME=visit_count
export STORAGE_ROLE=simpleStorageRole

# fetch the project number to use in IAM bindings
export PROJECT_NUM=$(gcloud projects describe $PROJECT_ID --format="value(projectNumber)")
echo "Project number: $PROJECT_NUM"

# delete function
gcloud beta functions delete $FUNCTION_NAME \
    --region $GCP_REGION

# remove IAM bindings (replace project number with one you fetched)
gcloud projects remove-iam-policy-binding $PROJECT_ID \
    --member=serviceAccount:service-$PROJECT_NUM@gcf-admin-robot.iam.gserviceaccount.com \
    --role=roles/viewer

gcloud projects remove-iam-policy-binding $PROJECT_ID \
    --member=serviceAccount:service-$PROJECT_NUM@gcf-admin-robot.iam.gserviceaccount.com \
    --role=roles/compute.networkUser

gcloud projects remove-iam-policy-binding $PROJECT_ID \
    --member=serviceAccount:service-$PROJECT_NUM@gcf-admin-robot.iam.gserviceaccount.com \
    --role=$STORAGE_ROLE_NAME

# delete custom role for storage permissions
gcloud iam roles delete $STORAGE_ROLE \
    --project $PROJECT_ID

# delete VPC connector (use the network name [not full path] and region from above)
gcloud compute networks vpc-access connectors delete $VPC_CONNECTOR \
    --region $GCP_REGION

# delete redis cluster
gcloud redis instances delete $REDIS_INSTANCE \
    --region $GCP_REGION

# remember to delete downloaded git repository too!