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119 lines
3.0 KiB
Markdown
119 lines
3.0 KiB
Markdown
# `rcloud-base`
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This repository contains all the rcloud-system components that are the backbone for ztka and gitops.
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## Prerequisites
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- [Postgres](https://github.com/postgres/postgres): Primary database
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- [Ory Kratos](https://www.ory.sh/kratos): API for user management
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- [Elasticsearch](https://www.elastic.co/elasticsearch/): Storage for audit logs
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> You can use the
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> [bitnami/charts](https://github.com/bitnami/charts/tree/master/bitnami/postgresql/#installing-the-chart)
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> for postgres and
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> [elastic/helm-charts](https://github.com/elastic/helm-charts) for
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> elasticsearch.
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## Development setup
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### Using `docker-compose`
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Run following Docker Compose command to setup all requirements like
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Postgres db, Kratos etc. for the rcloud-base.
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_This will start up postgres and elasticsearch as well as kratos and
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run the kratos migrations. It will also run all the necessary
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migrations. It also starts up a mail slurper for you to use Kratos._
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```bash
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docker-compose up -d
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```
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Start rcloud-base:
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```bash
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go run github.com/RafaySystems/rcloud-base
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```
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### Manual
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#### Start databases
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##### Postgres
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```bash
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docker run --network host \
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--env POSTGRES_HOST_AUTH_METHOD=trust \
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-v pgdata:/var/lib/postgresql/data \
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-it postgres
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```
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##### Elasticsearch
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```bash
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docker run --network host \
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-v elastic-data:/usr/share/elasticsearch/data \
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-e "discovery.type=single-node" \
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-e "xpack.security.enabled=false" \
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-it docker.elastic.co/elasticsearch/elasticsearch:8.0.0
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```
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#### Create the initial db/user
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Scripts for `admindb`:
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```sql
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create database admindb;
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CREATE ROLE admindbuser WITH LOGIN PASSWORD '<your_password>';
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GRANT ALL PRIVILEGES ON DATABASE admindb to admindbuser;
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```
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Now in the newly created db:
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```sql
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CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
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grant execute on function uuid_generate_v4() to admindbuser;
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```
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Scripts for `clusterdb`:
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```sql
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create database clusterdb;
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CREATE ROLE clusterdbuser WITH LOGIN PASSWORD '<your_password>';
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GRANT ALL PRIVILEGES ON DATABASE clusterdb to clusterdbuser;
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```
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Now in the newly created db:
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```sql
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CREATE EXTENSION IF NOT EXISTS "uuid-ossp";
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grant execute on function uuid_generate_v4() to clusterdbuser;
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```
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_This will grant the necessary permission to the newly created user to run uuid_generate_v4()_
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#### Run application migrations
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We use [`golang-migrate`](https://github.com/golang-migrate/migrate) to perform migrations.
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##### Install [`golang-migrate`](https://github.com/golang-migrate/migrate)
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```shell
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go install -tags 'postgres' github.com/golang-migrate/migrate/v4/cmd/migrate@latest
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```
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_`-tags 'postgres'` is important as otherwise it compiles without postgres support_
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You can refer to the [guide](https://github.com/golang-migrate/migrate/tree/master/cmd/migrate) for full details.
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##### Run migrations
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Example for `admindb`:
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```shell
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export POSTGRESQL_URL='postgres://<user>:<pass>@<host>:<port>/admindb?sslmode=disable'
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migrate -path ./persistence/migrations/admindb -database "$POSTGRESQL_URL" up
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```
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See [cli-usage](https://github.com/golang-migrate/migrate#cli-usage) for more info.
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