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Commit 80fd7014 authored by Aakriti Gupta's avatar Aakriti Gupta Committed by Achilleas Pipinellis
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Geo: Add steps for adding verification states to a separate table

parent 12d18b33
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.gitlab/issue_templates/Geo Replicate a new Git repository type.md
View file @ 80fd7014
......@@ -342,39 +342,6 @@ That's all of the required database changes.
- [ ] Implement `CoolWidget.replicables_for_current_secondary` above.
- [ ] Ensure `CoolWidget.replicables_for_current_secondary` is well-tested. Search the codebase for `replicables_for_current_secondary` to find examples of parameterized table specs. You may need to add more `FactoryBot` traits.
- [ ] If you are using a separate table `cool_widget_states` to track verification state on the Geo primary site, then:
- [ ] Do not include `::Gitlab::Geo::VerificationState` on the `CoolWidget` class.
- [ ] Add the following lines to the `cool_widget_state.rb` model:
```ruby
class CoolWidgetState < ApplicationRecord
...
self.primary_key = :cool_widget_id
include ::Gitlab::Geo::VerificationState
belongs_to :cool_widget, inverse_of: :cool_widget_state
...
end
```
- [ ] Add the following lines to the `cool_widget` model:
```ruby
class CoolWidget < ApplicationRecord
...
has_one :cool_widget_state, inverse_of: :cool_widget
delegate :verification_retry_at, :verification_retry_at=,
:verified_at, :verified_at=,
:verification_checksum, :verification_checksum=,
:verification_failure, :verification_failure=,
:verification_retry_count, :verification_retry_count=,
to: :cool_widget_state
...
end
```
- [ ] Create `ee/app/replicators/geo/cool_widget_replicator.rb`. Implement the `#repository` method which should return a `<Repository>` instance, and implement the class method `.model` to return the `CoolWidget` class:
```ruby
......@@ -542,6 +509,73 @@ That's all of the required database changes.
end
```
##### If you added verification state fields to a separate table (option 2 above), then you need to make additional model changes
If you did not add verification state fields to a separate table, `cool_widget_states`, then skip to [Step 2. Implement metrics gathering](#step-2-implement-metrics-gathering).
Otherwise, you can follow [the example of Merge Request Diffs](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/63309).
- [ ] Add the following lines to the `cool_widget_state.rb` model:
``` ruby
class CoolWidgetState < ApplicationRecord
self.primary_key = :cool_widget_id
belongs_to :cool_widget, inverse_of: :cool_widget_state
end
```
- [ ] Add the following lines to the `cool_widget` model to accomplish some important tasks:
- Include the `::Gitlab::Geo::VerificationState` concern.
- Delegate verification related methods to the `cool_widget_state` model.
- Override some scopes to use the `cool_widget_states` table instead of the model table, for verification.
- Override some methods to use the `cool_widget_states` table in verification related queries.
```ruby
class CoolWidget < ApplicationRecord
...
include ::Gitlab::Geo::VerificationState
has_one :cool_widget_state, autosave: true, inverse_of: :cool_widget
delegate :verification_retry_at, :verification_retry_at=,
:verified_at, :verified_at=,
:verification_checksum, :verification_checksum=,
:verification_failure, :verification_failure=,
:verification_retry_count, :verification_retry_count=,
:verification_state=, :verification_state,
:verification_started_at=, :verification_started_at,
to: :cool_widget_state
...
scope :with_verification_state, ->(state) { joins(:cool_widget_state).where(cool_widget_states: { verification_state: verification_state_value(state) }) }
scope :checksummed, -> { joins(:cool_widget_state).where.not(cool_widget_states: { verification_checksum: nil } ) }
scope :not_checksummed, -> { joins(:cool_widget_state).where(cool_widget_states: { verification_checksum: nil } ) }
...
class_methods do
extend ::Gitlab::Utils::Override
...
override :verification_state_table_name
def verification_state_table_name
'cool_widget_states'
end
override :verification_state_model_key
def verification_state_model_key
'cool_widget_id'
end
override :verification_arel_table
def verification_arel_table
CoolWidgetState.arel_table
end
end
...
end
```
#### Step 2. Implement metrics gathering
Metrics are gathered by `Geo::MetricsUpdateWorker`, persisted in `GeoNodeStatus` for display in the UI, and sent to Prometheus:
......
.gitlab/issue_templates/Geo Replicate a new blob type.md
View file @ 80fd7014
......@@ -331,39 +331,6 @@ That's all of the required database changes.
- [ ] Implement `CoolWidget.replicables_for_current_secondary` above.
- [ ] Ensure `CoolWidget.replicables_for_current_secondary` is well-tested. Search the codebase for `replicables_for_current_secondary` to find examples of parameterized table specs. You may need to add more `FactoryBot` traits.
- [ ] If you are using a separate table `cool_widget_states` to track verification state on the Geo primary site, then:
- [ ] Do not include `::Gitlab::Geo::VerificationState` on the `CoolWidget` class.
- [ ] Add the following lines to the `cool_widget_state.rb` model:
```ruby
class CoolWidgetState < ApplicationRecord
...
self.primary_key = :cool_widget_id
include ::Gitlab::Geo::VerificationState
belongs_to :cool_widget, inverse_of: :cool_widget_state
...
end
```
- [ ] Add the following lines to the `cool_widget` model:
```ruby
class CoolWidget < ApplicationRecord
...
has_one :cool_widget_state, inverse_of: :cool_widget
delegate :verification_retry_at, :verification_retry_at=,
:verified_at, :verified_at=,
:verification_checksum, :verification_checksum=,
:verification_failure, :verification_failure=,
:verification_retry_count, :verification_retry_count=,
to: :cool_widget_state
...
end
```
- [ ] Create `ee/app/replicators/geo/cool_widget_replicator.rb`. Implement the `#carrierwave_uploader` method which should return a `CarrierWave::Uploader`, and implement the class method `.model` to return the `CoolWidget` class:
```ruby
......@@ -508,6 +475,73 @@ That's all of the required database changes.
end
```
##### If you added verification state fields to a separate table (option 2 above), then you need to make additional model changes
If you did not add verification state fields to a separate table, `cool_widget_states`, then skip to [Step 2. Implement metrics gathering](#step-2-implement-metrics-gathering).
Otherwise, you can follow [the example of Merge Request Diffs](https://gitlab.com/gitlab-org/gitlab/-/merge_requests/63309).
- [ ] Add the following lines to the `cool_widget_state.rb` model:
``` ruby
class CoolWidgetState < ApplicationRecord
self.primary_key = :cool_widget_id
belongs_to :cool_widget, inverse_of: :cool_widget_state
end
```
- [ ] Add the following lines to the `cool_widget` model to accomplish some important tasks:
- Include the `::Gitlab::Geo::VerificationState` concern.
- Delegate verification related methods to the `cool_widget_state` model.
- Override some scopes to use the `cool_widget_states` table instead of the model table, for verification.
- Override some methods to use the `cool_widget_states` table in verification related queries.
```ruby
class CoolWidget < ApplicationRecord
...
include ::Gitlab::Geo::VerificationState
has_one :cool_widget_state, autosave: true, inverse_of: :cool_widget
delegate :verification_retry_at, :verification_retry_at=,
:verified_at, :verified_at=,
:verification_checksum, :verification_checksum=,
:verification_failure, :verification_failure=,
:verification_retry_count, :verification_retry_count=,
:verification_state=, :verification_state,
:verification_started_at=, :verification_started_at,
to: :cool_widget_state
...
scope :with_verification_state, ->(state) { joins(:cool_widget_state).where(cool_widget_states: { verification_state: verification_state_value(state) }) }
scope :checksummed, -> { joins(:cool_widget_state).where.not(cool_widget_states: { verification_checksum: nil } ) }
scope :not_checksummed, -> { joins(:cool_widget_state).where(cool_widget_states: { verification_checksum: nil } ) }
...
class_methods do
extend ::Gitlab::Utils::Override
...
override :verification_state_table_name
def verification_state_table_name
'cool_widget_states'
end
override :verification_state_model_key
def verification_state_model_key
'cool_widget_id'
end
override :verification_arel_table
def verification_arel_table
CoolWidgetState.arel_table
end
end
...
end
```
#### Step 2. Implement metrics gathering
Metrics are gathered by `Geo::MetricsUpdateWorker`, persisted in `GeoNodeStatus` for display in the UI, and sent to Prometheus:
......
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