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Delete GCP resources #402

Delete GCP resources

Delete GCP resources #402

# This workflow is designed to delete old Google Cloud Platform (GCP) resources to save on costs.
#
# 1. Deletes specific instances in GCP older than a defined number of days.
# 2. Deletes instance templates older than a set number of days.
# 3. Deletes older disks not currently in use, with certain ones prefixed by commit hashes or "zebrad-".
# 4. Deletes cache images from GCP, retaining a specified number of the latest images for certain types like zebrad checkpoint cache, zebrad tip cache, and lightwalletd + zebrad tip cache.
# 5. Deletes unused artifacts from Google Artifact Registry older than a defined number of hours while retaining the latest few.
#
# It uses the gcloud CLI for most of its operations and also leverages specific GitHub Actions like the gcr-cleaner for deleting old images from the Google Artifact Registry.
# The workflow is scheduled to run daily at 0700 UTC.
name: Delete GCP resources
on:
# Run daily, when most devs aren't working
# 0700 UTC is after AEST working hours but before ET working hours
schedule:
- cron: "0 7 * * *"
workflow_dispatch:
env:
# Delete all resources created before $DELETE_INSTANCE_DAYS days ago.
# We keep this short to reduce CPU, RAM, and storage costs.
DELETE_INSTANCE_DAYS: 3
# Delete all other resources created before $DELETE_AGE_DAYS days ago.
# We keep this short to reduce storage costs.
DELETE_AGE_DAYS: 2
# But keep the latest $KEEP_LATEST_IMAGE_COUNT images of each type.
# We keep this small to reduce storage costs.
KEEP_LATEST_IMAGE_COUNT: 2
# Delete all artifacts in registry created before $DELETE_IMAGE_HOURS hours ago.
# We keep this long enough for PRs that are still on the same commit can re-run with the same image.
DELETE_IMAGE_HOURS: 504h # 21 days
jobs:
delete-resources:
name: Delete old GCP resources
runs-on: ubuntu-latest
permissions:
contents: 'read'
id-token: 'write'
steps:
- uses: actions/[email protected]
with:
persist-credentials: false
# Setup gcloud CLI
- name: Authenticate to Google Cloud
id: auth
uses: google-github-actions/[email protected]
with:
workload_identity_provider: '${{ vars.GCP_WIF }}'
service_account: '${{ vars.GCP_DEPLOYMENTS_SA }}'
- name: Set up Cloud SDK
uses: google-github-actions/[email protected]
# Deletes all mainnet and testnet instances older than $DELETE_INSTANCE_DAYS days.
#
# We only delete instances that end in 7 or more hex characters,
# to avoid deleting managed instance groups and manually created instances.
#
# ${INSTANCE_AND_ZONE} expands to:
# <instance-name> --zone=<zone-name>
# so it can't be shell-quoted.
- name: Delete old instances
run: |
./.github/workflows/scripts/gcp-delete-old-instances.sh
# Deletes all the instance templates older than $DELETE_AGE_DAYS days.
- name: Delete old instance templates
run: |
./.github/workflows/scripts/gcp-delete-old-templates.sh
# Deletes all mainnet and testnet disks older than $DELETE_AGE_DAYS days.
#
# Disks that are attached to an instance template can't be deleted, so it is safe to try to delete all disks here.
#
# ${DISK_AND_LOCATION} expands to:
# <disk-name> --[zone|region]=<location-name>
# so it can't be shell-quoted.
- name: Delete old disks
run: |
./.github/workflows/scripts/gcp-delete-old-disks.sh
# Deletes mainnet and testnet cache images older than $DELETE_AGE_DAYS days.
#
# Keeps all images younger than $DELETE_AGE_DAYS.
# Also keeps $KEEP_LATEST_IMAGE_COUNT older images of each type, for each network:
# - zebrad checkpoint cache
# - zebrad tip cache
# - lightwalletd + zebrad tip cache
#
# TODO:
# - refactor out repeated shell script code
- name: Delete old cache images
run: |
./.github/workflows/scripts/gcp-delete-old-cache-images.sh
# We're using a generic approach here, which allows multiple registries to be included,
# even those not related to GCP. Enough reason to create a separate job.
#
# The same artifacts are used for both mainnet and testnet.
clean-registries:
name: Delete unused artifacts in registry
runs-on: ubuntu-latest
permissions:
contents: 'read'
id-token: 'write'
steps:
- uses: actions/[email protected]
with:
persist-credentials: false
# Setup gcloud CLI
- name: Authenticate to Google Cloud
id: auth
uses: google-github-actions/[email protected]
with:
workload_identity_provider: '${{ vars.GCP_WIF }}'
service_account: '${{ vars.GCP_DEPLOYMENTS_SA }}'
token_format: 'access_token'
- name: Login to Google Artifact Registry
uses: docker/[email protected]
with:
registry: us-docker.pkg.dev
username: oauth2accesstoken
password: ${{ steps.auth.outputs.access_token }}
# Deletes all images older than $DELETE_IMAGE_HOURS days.
- uses: 'docker://us-docker.pkg.dev/gcr-cleaner/gcr-cleaner/gcr-cleaner-cli'
continue-on-error: true # TODO: remove after fixig https://github.com/ZcashFoundation/zebra/issues/5933
# Refer to the official documentation to understand available arguments:
# https://github.com/GoogleCloudPlatform/gcr-cleaner
with:
args: >-
-repo=us-docker.pkg.dev/${{ vars.GCP_PROJECT }}/zebra/zebrad-test
-grace=${{ env.DELETE_IMAGE_HOURS }}
-keep=${{ env.KEEP_LATEST_IMAGE_COUNT }}