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feat: implement heroku's postdeploy deployment task

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This occurs during the postdeploy on the first deploy of an app, mimicking heroku. It currently happens _after_ the `postdeploy` and `release` deploy tasks.
This commit is contained in:
Jose Diaz-Gonzalez
2021-02-21 21:00:14 -05:00
parent 4d13e0c2f6
commit f98e7702fb
6 changed files with 70 additions and 20 deletions
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10
docs/advanced-usage/deployment-tasks.md
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@@ -24,6 +24,12 @@ Each "phase" has different expectations and limitations:
- Example use-cases
- Notifying slack that your app is deployed
- Coordinating traffic routing with a central load balancer
- `app.json`: `scripts.postdeploy`
- When to use: This should be used when you wish to run a command _once_, after the app is created and not on subsequent deploys to the app.
- Are changes committed to the image at this phase: No
- Example use-cases
- Setting up OAuth clients and DNS
- Loading seed/test data into the app’s test database
- `Procfile`: `release`
- When to use: This should be used in conjunction with external systems to signal the completion of your app image build.
- Are changes committed to the image at this phase: No
@@ -44,6 +50,7 @@ Dokku provides limited support for the `app.json` manifest from Heroku (document
- `scripts.dokku.predeploy`: This is run _after_ an app's docker image is built, but _before_ any containers are scheduled. Changes made to your image are committed at this phase.
- `scripts.dokku.postdeploy`: This is run _after_ an app's containers are scheduled. Changes made to your image are *not* committed at this phase.
- `scripts.postdeploy`: This is run _after_ an app's containers are scheduled. Changes made to your image are *not* committed at this phase.
For buildpack-based deployments, the location of the `app.json` file should be at the root of your repository. Dockerfile-based app deploys should have the `app.json` in the configured `WORKDIR` directory; otherwise Dokku defaults to the buildpack app behavior of looking in `/app`.
@@ -57,7 +64,8 @@ The following is an example `app.json` file. Please note that only the `scripts.
"dokku": {
"predeploy": "touch /app/predeploy.test",
"postdeploy": "curl https://some.external.api.service.com/deployment?state=success"
}
},
"postdeploy": "curl https://some.external.api.service.com/created?state=success"
}
}
```