Hooks

Introduction

Hooks allow you to execute a custom command or script before or after specified command is executed.
Example use cases:
- build, validate or lint your application before deployment
- run unit tests on your application before deployment
- execute database migration after deployment
- cleanup database before delete

Usage

Within hook, you can reference scripts specified in scripts section of your config.

Scripts can be referenced in a hook, but they can also be executed manually. Refer to scripts docs to learn more.

During execution the script will get the following environment variables:

STP_HOOK_TYPE - before or after
STP_COMMAND - Stacktape command used

This is in addition to the environment variables specified on the script definition and the environment variables injected when using connectTo.

NamedScriptLifecycleHook API reference

Parent:Hooks

scriptName

Required

skipOnCI

skipOnLocal


Copy
scripts:
  buildWeb:
    type: local-script
    properties:
      executeCommand: npx gatsby build

hooks:
  beforeDeploy:
    - scriptName: buildWeb

Using script in the hook

Hookable events

Hooks API reference

beforeDeploy

afterDeploy

beforeDelete

afterDelete

beforeBucketSync

afterBucketSync

beforeDev

afterDev

Before command hooks

Executed before the command, but AFTER the configuration has been successfully loaded.

Executed only if the configuration was successfully loaded and hooks have been registered. The hook won't be executed if there's an error with your CLI arguments or in your configuration.

After command hooks

Executed after the command has successfully finished.
Most common use case for using after deploy hooks is migration/seeding of the database, or API/endpoint testing.


Copy
scripts:
  migrateDb:
    type: local-script-with-bastion-tunneling
    properties:
      executeScript: migrate.ts
      connectTo:
        - myDatabase

hooks:
  afterDeploy:
    - scriptName: migrateDb

resources:
  myBastion:
    type: bastion

  myDatabase:
    type: relational-database
    properties:
      # database is only accessible from withing VPC
      accessibility:
        accessibilityMode: vpc
      engine:
        type: postgres
        properties:
          primaryInstance:
            instanceSize: db.t3.micro
      credentials:
        masterUserPassword: my_secret_pass

Stacktape config using the migration script with tunneling