graphql-engine/packaging/cli-migrations/v3/README.md

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# CLI Migrations
This docker image provides a method to run migrations and metadata at docker entrypoint. A temporary server is booted,
with the migrations API allowed, securely through localhost. Once migrations and metadata have been applied, the server
will reboot in a secure mode for inbound graphql usage.
See [./docker-entrypoint.sh](docker-entrypoint.sh)
- [CLI Migrations](#cli-migrations)
- [Examples](#examples)
- [Local](#local)
- [Configuration](#configuration)
- [Migrations Directory (Optional)](#migrations-directory-optional)
- [Metadata Directory (Optional)](#metadata-directory-optional)
- [Database (One of required)](#database-one-of-them-required)
- [GraphQL Server (Optional)](#graphql-server-optional)
## Examples
It is used in a docker file as:
```dockerfile
FROM hasura/graphql-engine:<version>.cli-migrations-v3
CMD graphql-engine \
--metadata-database-url $METADATA_DATABASE_URL \
serve \
--server-port $PORT \
--enable-console
```
### Local
This is covered in the documentation here:
https://hasura.io/docs/latest/graphql/core/migrations/auto-apply-migrations.html The below
[Configuration](#configuration) will also be applicable.
## Configuration
You may set the following environment variables to configure the way this image is run.
### Migrations Directory (Optional)
Migrations are either mounted or built into the image.
If it has been stored in a directory other than the default then it can be configured using the following:
- `HASURA_GRAPHQL_MIGRATIONS_DIR` (default=`/hasura-migrations`)
A path to the migrations directory.
### Metadata Directory (Optional)
Metadata are either mounted or built into the image.
If it has been stored in a directory other than the default then it can be configured using the following:
- `HASURA_GRAPHQL_METADATA_DIR` (default=`/hasura-metadata`)
A path to the metadata directory.
### GraphQL Server (Optional)
Optional configuration for the server which boots during migrations.
- `HASURA_GRAPHQL_MIGRATIONS_SERVER_PORT` (default=`9691`)
Specify the port running the graphql server during execution of the migration script. It is advised that you do not
specify a PORT that may be open e.g. 80/443 and the default should rarely require changing.
- `HASURA_GRAPHQL_MIGRATIONS_SERVER_TIMEOUT` (default=`30s`)
Specify the server timeout threshold.