Next is the V2 of Skygear that aim to follow

Support multi tenant at core, make cloud deploy scalable at first day.
Simplify deployment.
Give back application lifecycle to cloud code developer and skygear developer.
Drop zmq and model against HTTP semantics.
Drop v1 Record class

Project structure

.
├── pkg
│   ├── server    <-- original skygear-server code
│   ├── auth
│   ├── gateway
│   └── core
└── cmd
    ├── auth
    │   └── main.go
    └── gateway
        └── main.go

Troubleshooting

If you encounter a build error look like invalid flag in pkg-config --cflags: -Xpreprocessor, export CGO_CFLAGS_ALLOW=-Xpreprocessor.

Dependencies

If you plan to build and run locally, you need to install the following dependencies.

pkgconfig
vips >= 8.7

If you are on macOS and user of homebrew, you can install them by

brew install pkgconfig vips

Gateway

Migration

See DB migration, use gateway for module.

To add a new gear

Add db migration to config db
- Add enabled column to plan table
- Add version column to app table
Update pkg/gateway/model/app.go with new gear in Gear, App and GetGearVersion.
Update GetAppByDomain in pkg/gateway/db/app.go with the new gear version column.
Update Plan struct and CanAccessGear func in pkg/gateway/model/plan.go
Update GearURLConfig and GetGearURL func in pkg/gateway/config/config.go

DB migration

The following part is about gateway and gears db migration.

If you come from skygear-server 0.x to 1.x, the biggest difference is that gears in skygear next would not support auto db migration in server boot time.

DB migration must be run before server boot up. And since we do not have a full featured db management tool for skygear yet, here is a general guide for new comers of skygear next user.

Create a schema for common gateway.
Create a schema for your app.
Run core and gear(s) migration.

For example, the app name is helloworld and you want to run auth gear .

# Base app_config schema for core gateway
CREATE SCHEMA app_config;
# Create shared schema for apps
# Run the following SQL in any postgresql client, like Postico
CREATE SCHEMA app;

# If you have psql cli
$ psql ${DATABASE_URL} -c "CREATE SCHEMA app;"

# Run core and auth migration
$ make -C migrate migrate MIGRATE_CMD=up DATABASE_URL=${DATABASE_URL} SCHEMA=app

See below sections for more commands about db migration.

Commands

Add a version

# MODULE can be gateway, core, auth...
$ export MODULE=<module_name>
$ export REVISION=<revision_description>
$ make -C migrate add-version MODULE=${MODULE} REVISION=${REVISION}

Check current db version

$ make -C migrate

Dry run the migration

Transaction will be rollback

$ make -C migrate MIGRATE_CMD=up DRY_RUN=1

Run the migration with github source

$ make -C migrate migrate \
    CORE_SOURCE=github://:@skygeario/skygear-server/migrations/core#6918eed \
    AUTH_SOURCE=github://:@skygeario/skygear-server/migrations/auth#6918eed \
    MIGRATE_CMD=up

Running db migration to all apps in cluster (multi-tenant mode)

Run core and auth migrations to apps which auth version in live

$ make -C migrate migrate \
    APP_FILTER_KEY=auth_version \
    APP_FILTER_VALUE=live \
    CONFIG_DATABASE=postgres://postgres:@localhost/postgres?sslmode=disable \
    HOSTNAME_OVERRIDE=localhost \
    MIGRATE_CMD=up

Start migration server in http server mode

To start the migration server

$ make -C migrate http

Calling the migration server

POST /migrate

Request example

{
    "migration": "auth",
    "schema": "app_config",
    "database": "postgres://postgres:@localhost:5432/postgres?sslmode=disable",
    "command": "version"
}

Response example

{
    "result":"1563434450"
}

License & Copyright

Copyright (c) 2015-present, Oursky Ltd.
All rights reserved.

This source code is licensed under the Apache License version 2.0
found in the LICENSE file in the root directory of this source tree.
An additional grant of patent rights can be found in the PATENTS
file in the same directory.

License

SkygearIO/skygear-server

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