atproto_hub.yaml

# https://cloud.google.com/appengine/docs/flexible/reference/app-yaml?tab=python
#
# gcloud -q app deploy --project bridgy-federated hub.yaml

# application: bridgy-federated

service: atproto-hub
env: flex
runtime: python
runtime_config:
    operating_system: ubuntu22
    runtime_version: "3.12"

resources:
  cpu: 2
  # steady state memory usage is only .5-2G, but spikes when we're working
  # through a backlog of commits
  # https://github.com/snarfed/bridgy-fed/issues/1266#issuecomment-2321863960
  memory_gb: 6.0

network:
  # run in default VPC for this project
  # https://cloud.google.com/appengine/docs/flexible/using-shared-vpc
  # https://cloud.google.com/appengine/docs/flexible/reference/app-yaml#network_settings
  # https://cloud.google.com/vpc/docs/serverless-vpc-access#supported_services
  name: projects/bridgy-federated/global/networks/default
  # can't be internal because Bluesky relay(s) need to be able to connect to us
  # over websocket for subscribeRepos
  instance_ip_mode: external

env_variables:
  PDS_HOST: atproto.brid.gy
  PLC_HOST: plc.directory
  APPVIEW_HOST: api.bsky.app
  BGS_HOST: bsky.network
  MOD_SERVICE_HOST: mod.bsky.app
  MOD_SERVICE_DID: did:plc:ar7c4by46qjdydhdevvrndac
  # ...or test against labeler.dholms.xyz / did:plc:vzxheqfwpbi3lxbgdh22js66
  MEMCACHE_HOST: '10.126.144.3'
  ROLLBACK_WINDOW: 50000
  SUBSCRIBE_REPOS_BATCH_DELAY: 10

  # https://github.com/googleapis/python-ndb/blob/c55ec62b5153787404488b046c4bf6ffa02fee64/google/cloud/ndb/utils.py#L78-L81
  # NDB_DEBUG: true

# need only one instance so that new commits can be delivered to subscribeRepos
# subscribers in memory
manual_scaling:
  instances: 1

liveness_check:
  # default 300; does lowering this speed up deploy? seems like maybe, a bit?
  # https://cloud.google.com/appengine/docs/flexible/reference/app-yaml?tab=python#liveness_checks
  initial_delay_sec: 30

# https://cloud.google.com/appengine/docs/flexible/python/runtime#application_startup
# https://docs.gunicorn.org/en/latest/settings.html#timeout
# TODO: try asyncio w/eventlet workers
entrypoint: gunicorn --workers 1 --threads 25 -b :$PORT atproto_hub:app