Add latest changes from gitlab-org/gitlab@master

2 files changed, 246 insertions, 172 deletions

diff --git a/doc/development/architecture.md b/doc/development/architecture.md
index f1801320ae0..b5caa1d223d 100644
--- a/doc/development/architecture.md
+++ b/doc/development/architecture.md
@@ -123,44 +123,53 @@ Component statuses are linked to configuration documentation for each component.
 
 ### Component list
 
-| Component | Description | [Omnibus GitLab](https://docs.gitlab.com/omnibus/) | [GitLab chart](https://docs.gitlab.com/charts/) | [Minikube Minimal](https://docs.gitlab.com/charts/development/minikube/#deploying-gitlab-with-minimal-settings) | [GitLab.com](https://gitlab.com) | [Source](../install/installation.md) | [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit) | CE/EE |
-| --------- | ----------- |:--------------------:|:------------------:|:-----:|:--------:|:--------:|:-------:|:-------:|
-| [NGINX](#nginx) | Routes requests to appropriate components, terminates SSL | [✅][nginx-omnibus] | [✅][nginx-charts] | [⚙][nginx-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture) | [⤓][nginx-source] | ❌ | CE & EE |
-| [Unicorn (GitLab Rails)](#unicorn) | Handles requests for the web interface and API | [✅][unicorn-omnibus] | [✅][unicorn-charts] | [✅][unicorn-charts] | [✅](../user/gitlab_com/index.md#unicorn) | [⚙][unicorn-source] | [✅][gitlab-yml] | CE & EE |
-| [Sidekiq](#sidekiq) | Background jobs processor | [✅][sidekiq-omnibus] | [✅][sidekiq-charts] | [✅](https://docs.gitlab.com/charts/charts/gitlab/sidekiq/index.html) | [✅](../user/gitlab_com/index.md#sidekiq) | [✅][gitlab-yml] | [✅][gitlab-yml] | CE & EE |
-| [Gitaly](#gitaly) | Git RPC service for handling all Git calls made by GitLab | [✅][gitaly-omnibus] | [✅][gitaly-charts] | [✅][gitaly-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture) | [⚙][gitaly-source] | ✅ | CE & EE |
-| [Praefect](#praefect) | A transparent proxy between any Git client and Gitaly storage nodes. | [✅][gitaly-omnibus] | [❌][gitaly-charts] | [❌][gitaly-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture) | [⚙][praefect-source] | ✅ | CE & EE |
-| [GitLab Workhorse](#gitlab-workhorse) | Smart reverse proxy, handles large HTTP requests | [✅][workhorse-omnibus] | [✅][workhorse-charts] | [✅][workhorse-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture) | [⚙][workhorse-source] | ✅ | CE & EE |
-| [GitLab Shell](#gitlab-shell) | Handles `git` over SSH sessions | [✅][shell-omnibus] | [✅][shell-charts] | [✅][shell-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture) | [⚙][shell-source] | [✅][gitlab-yml] | CE & EE |
-| [GitLab Pages](#gitlab-pages) | Hosts static websites | [⚙][pages-omnibus] | [❌][pages-charts] | [❌][pages-charts] | [✅](../user/gitlab_com/index.md#gitlab-pages) | [⚙][pages-source] | [⚙][pages-gdk] | CE & EE  |
-| [Registry](#registry) | Container registry, allows pushing and pulling of images | [⚙][registry-omnibus] | [✅][registry-charts] | [✅][registry-charts] | [✅](../user/packages/container_registry/index.md#build-and-push-images-using-gitlab-cicd) | [⤓][registry-source] | [⚙][registry-gdk] | CE & EE  |
-| [Redis](#redis) | Caching service | [✅][redis-omnibus] | [✅][redis-omnibus] | [✅][redis-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture) | [⤓][redis-source] | ✅ | CE & EE |
-| [PostgreSQL](#postgresql) | Database | [✅][postgres-omnibus] | [✅][postgres-charts] | [✅][postgres-charts] | [✅](../user/gitlab_com/index.md#postgresql) | [⤓][postgres-source] | ✅ | CE & EE |
-| [PgBouncer](#pgbouncer) | Database connection pooling, failover | [⚙][pgbouncer-omnibus] | [❌][pgbouncer-charts] | [❌][pgbouncer-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#database-architecture) | ❌ | ❌ | EE Only |
-| [Consul](#consul) | Database node discovery, failover | [⚙][consul-omnibus] | [❌][consul-charts] | [❌][consul-charts] | [✅](../user/gitlab_com/index.md#consul) | ❌ | ❌ | EE Only |
-| [GitLab self-monitoring: Prometheus](#prometheus) | Time-series database, metrics collection, and query service | [✅][prometheus-omnibus] | [✅][prometheus-charts] | [⚙][prometheus-charts] | [✅](../user/gitlab_com/index.md#prometheus) | ❌ | ❌ | CE & EE |
-| [GitLab self-monitoring: Alertmanager](#alertmanager) | Deduplicates, groups, and routes alerts from Prometheus | [⚙][alertmanager-omnibus] | [✅][alertmanager-charts] |  [⚙][alertmanager-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
-| [GitLab self-monitoring: Grafana](#grafana) | Metrics dashboard | [✅][grafana-omnibus] | [⤓][grafana-charts] |  [⤓][grafana-charts] | [✅](https://dashboards.gitlab.com/d/RZmbBr7mk/gitlab-triage?refresh=30s) | ❌ | ❌ | CE & EE |
-| [GitLab self-monitoring: Sentry](#sentry) | Track errors generated by the GitLab instance | [⤓][sentry-omnibus] | [❌][sentry-charts] | [❌][sentry-charts] | [✅](https://about.gitlab.com/handbook/support/workflows/500_errors.html#searching-sentry) | [⤓][gitlab-yml] | [⤓][gitlab-yml] | CE & EE |
-| [GitLab self-monitoring: Jaeger](#jaeger) | View traces generated by the GitLab instance | [❌][jaeger-omnibus] | [❌][jaeger-charts] | [❌][jaeger-charts] | [❌](https://gitlab.com/gitlab-org/omnibus-gitlab/issues/4104) | [⤓][jaeger-source] | [⚙][jaeger-gdk] | CE & EE |
-| [Redis Exporter](#redis-exporter) | Prometheus endpoint with Redis metrics | [✅][redis-exporter-omnibus] | [✅][redis-exporter-charts] | [✅][redis-exporter-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
-| [PostgreSQL Exporter](#postgresql-exporter) | Prometheus endpoint with PostgreSQL metrics | [✅][postgres-exporter-omnibus] | [✅][postgres-exporter-charts] | [✅][postgres-exporter-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
-| [PgBouncer Exporter](#pgbouncer-exporter) | Prometheus endpoint with PgBouncer metrics | [⚙][pgbouncer-exporter-omnibus] | [❌][pgbouncer-exporter-charts] | [❌][pgbouncer-exporter-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
-| [GitLab Exporter](#gitlab-exporter) | Generates a variety of GitLab metrics | [✅][gitlab-exporter-omnibus] | [✅][gitlab-exporter-charts] | [✅][gitlab-exporter-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
-| [Node Exporter](#node-exporter) | Prometheus endpoint with system metrics | [✅][node-exporter-omnibus] | [N/A][node-exporter-charts] | [N/A][node-exporter-charts] | [✅](https://about.gitlab.com/handbook/engineering/monitoring/) | ❌ | ❌ | CE & EE |
-| [Mattermost](#mattermost) | Open-source Slack alternative | [⚙][mattermost-omnibus] | [⤓][mattermost-charts] | [⤓][mattermost-charts] | [⤓](../user/project/integrations/mattermost.md) | ❌ | ❌ | CE & EE |
-| [MinIO](#minio) | Object storage service | [⤓][minio-omnibus] | [✅][minio-charts] | [✅][minio-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#storage-architecture) | ❌ | [⚙][minio-gdk] | CE & EE |
-| [Runner](#gitlab-runner) | Executes GitLab CI/CD jobs | [⤓][runner-omnibus] | [✅][runner-charts] | [⚙][runner-charts] | [✅](../user/gitlab_com/index.md#shared-runners) | [⚙][runner-source] | [⚙][runner-gdk] | CE & EE |
-| [Database Migrations](#database-migrations) | Database migrations | [✅][database-migrations-omnibus] | [✅][database-migrations-charts] | [✅][database-migrations-charts] | ✅ | [⚙][database-migrations-source] | ✅ | CE & EE |
-| [Certificate Management](#certificate-management) | TLS Settings, Let's Encrypt | [✅][certificate-management-omnibus] | [✅][certificate-management-charts] | [⚙][certificate-management-charts] | [✅](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#secrets-management) | [⚙][certificate-management-source] | [⚙][certificate-management-gdk] | CE & EE |
-| [GitLab Geo Node](#gitlab-geo) | Geographically distributed GitLab nodes | [⚙][geo-omnibus] | [❌][geo-charts] | [❌][geo-charts] | ✅ | ❌ | [⚙][geo-gdk] | EE Only |
-| [LDAP Authentication](#ldap-authentication) | Authenticate users against centralized LDAP directory | [⤓][ldap-omnibus] | [⤓][ldap-charts] | [⤓][ldap-charts] | [❌](https://about.gitlab.com/pricing/#gitlab-com) | [⤓][gitlab-yml] | [⤓][ldap-gdk] | CE & EE |
-| [Outbound email (SMTP)](#outbound-email) | Send email messages to users | [⤓][outbound-email-omnibus] | [⤓][outbound-email-charts] | [⤓][outbound-email-charts] | [✅](../user/gitlab_com/index.md#mail-configuration) | [⤓][gitlab-yml] | [⤓][gitlab-yml] | CE & EE |
-| [Inbound email (SMTP)](#inbound-email) | Receive messages to update issues | [⤓][inbound-email-omnibus] | [⤓][inbound-email-charts] | [⤓][inbound-email-charts] | [✅](../user/gitlab_com/index.md#mail-configuration) | [⤓][gitlab-yml] | [⤓][gitlab-yml] |  CE & EE |
-| [Elasticsearch](#elasticsearch) | Improved search within GitLab | [⤓][elasticsearch-omnibus] | [⤓][elasticsearch-charts] | [⤓][elasticsearch-charts] | [❌](https://gitlab.com/groups/gitlab-org/-/epics/153) | [⤓][elasticsearch-source] | [⤓][elasticsearch-gdk] | EE Only |
-| [Sentry integration](#sentry) | Error tracking for deployed apps | [⤓][sentry-integration] | [⤓][sentry-integration] | [⤓][sentry-integration] | [⤓][sentry-integration] | [⤓][sentry-integration] | [⤓][sentry-integration] | CE & EE |
-| [Jaeger integration](#jaeger) | Distributed tracing for deployed apps | [⤓][jaeger-integration] | [⤓][jaeger-integration] | [⤓][jaeger-integration] | [⤓][jaeger-integration] | [⤓][jaeger-integration] | [⤓][jaeger-integration] | EE Only |
-| [GitLab Managed Apps](#gitlab-managed-apps) | Deploy [Helm](https://helm.sh/docs/), [Ingress](https://kubernetes.io/docs/concepts/services-networking/ingress/), [Cert-Manager](https://cert-manager.io/docs/), [Prometheus](https://prometheus.io/docs/introduction/overview/), a [Runner](https://docs.gitlab.com/runner/), [JupyterHub](https://jupyter.org), [Knative](https://cloud.google.com/knative/) to a cluster | [⤓][managed-k8s-apps] | [⤓][managed-k8s-apps] | [⤓][managed-k8s-apps] | [⤓][managed-k8s-apps] | [⤓][managed-k8s-apps] | [⤓][managed-k8s-apps] | CE & EE |
+Table description links:
+
+- [Omnibus GitLab](https://docs.gitlab.com/omnibus/)
+- [GitLab chart](https://docs.gitlab.com/charts/)
+- [Minikube Minimal](https://docs.gitlab.com/charts/development/minikube/#deploying-gitlab-with-minimal-settings)
+- [GitLab.com](https://gitlab.com)
+- [Source](../install/installation.md)
+- [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit)
+
+| Component                                             | Description                                                          | Omnibus GitLab | GitLab chart | Minikube Minimal | GitLab.com | Source | GDK |  CE/EE  |
+|-------------------------------------------------------|----------------------------------------------------------------------|:--------------:|:------------:|:----------------:|:----------:|:------:|:---:|:-------:|
+| [Certificate Management](#certificate-management)     | TLS Settings, Let's Encrypt                                          |       ✅        |      ✅       |        ⚙         |     ✅      |   ⚙    |  ⚙  | CE & EE |
+| [Consul](#consul)                                     | Database node discovery, failover                                    |       ⚙        |      ❌       |        ❌         |     ✅      |   ❌    |  ❌  | EE Only |
+| [Database Migrations](#database-migrations)           | Database migrations                                                  |       ✅        |      ✅       |        ✅         |     ✅      |   ⚙    |  ✅  | CE & EE |
+| [Elasticsearch](#elasticsearch)                       | Improved search within GitLab                                        |       ⤓        |      ⤓       |        ⤓         |     ❌      |   ⤓    |  ⤓  | EE Only |
+| [Gitaly](#gitaly)                                     | Git RPC service for handling all Git calls made by GitLab            |       ✅        |      ✅       |        ✅         |     ✅      |   ⚙    |  ✅  | CE & EE |
+| [GitLab Exporter](#gitlab-exporter)                   | Generates a variety of GitLab metrics                                |       ✅        |      ✅       |        ✅         |     ✅      |   ❌    |  ❌  | CE & EE |
+| [GitLab Geo Node](#gitlab-geo)                        | Geographically distributed GitLab nodes                              |       ⚙        |      ❌       |        ❌         |     ✅      |   ❌    |  ⚙  | EE Only |
+| [GitLab Managed Apps](#gitlab-managed-apps)           | Deploy Helm, Ingress, Cert-Manager, Prometheus, a Runner, JupyterHub, or Knative to a cluster |  ⤓  |  ⤓  |      ⤓       |     ⤓      |   ⤓    |  ⤓  | CE & EE |
+| [GitLab Pages](#gitlab-pages)                         | Hosts static websites                                                |       ⚙        |      ❌       |        ❌         |     ✅      |   ⚙    |  ⚙  | CE & EE |
+| [GitLab self-monitoring: Alertmanager](#alertmanager) | Deduplicates, groups, and routes alerts from Prometheus              |       ⚙        |      ✅       |        ⚙         |     ✅      |   ❌    |  ❌  | CE & EE |
+| [GitLab self-monitoring: Grafana](#grafana)           | Metrics dashboard                                                    |       ✅        |      ⤓       |        ⤓         |     ✅      |   ❌    |  ❌  | CE & EE |
+| [GitLab self-monitoring: Jaeger](#jaeger)             | View traces generated by the GitLab instance                         |       ❌        |      ❌       |        ❌         |     ❌      |   ⤓    |  ⚙  | CE & EE |
+| [GitLab self-monitoring: Prometheus](#prometheus)     | Time-series database, metrics collection, and query service          |       ✅        |      ✅       |        ⚙         |     ✅      |   ❌    |  ❌  | CE & EE |
+| [GitLab self-monitoring: Sentry](#sentry)             | Track errors generated by the GitLab instance                        |       ⤓        |      ❌       |        ❌         |     ✅      |   ⤓    |  ⤓  | CE & EE |
+| [GitLab Shell](#gitlab-shell)                         | Handles `git` over SSH sessions                                      |       ✅        |      ✅       |        ✅         |     ✅      |   ⚙    |  ✅  | CE & EE |
+| [GitLab Workhorse](#gitlab-workhorse)                 | Smart reverse proxy, handles large HTTP requests                     |       ✅        |      ✅       |        ✅         |     ✅      |   ⚙    |  ✅  | CE & EE |
+| [Inbound email (SMTP)](#inbound-email)                | Receive messages to update issues                                    |       ⤓        |      ⤓       |        ⤓         |     ✅      |   ⤓    |  ⤓  | CE & EE |
+| [Jaeger integration](#jaeger)                         | Distributed tracing for deployed apps                                |       ⤓        |      ⤓       |        ⤓         |     ⤓      |   ⤓    |  ⤓  | EE Only |
+| [LDAP Authentication](#ldap-authentication)           | Authenticate users against centralized LDAP directory                |       ⤓        |      ⤓       |        ⤓         |     ❌      |   ⤓    |  ⤓  | CE & EE |
+| [Mattermost](#mattermost)                             | Open-source Slack alternative                                        |       ⚙        |      ⤓       |        ⤓         |     ⤓      |   ❌    |  ❌  | CE & EE |
+| [MinIO](#minio)                                       | Object storage service                                               |       ⤓        |      ✅       |        ✅         |     ✅      |   ❌    |  ⚙  | CE & EE |
+| [NGINX](#nginx)                                       | Routes requests to appropriate components, terminates SSL            |       ✅        |      ✅       |        ⚙         |     ✅      |   ⤓    |  ❌  | CE & EE |
+| [Node Exporter](#node-exporter)                       | Prometheus endpoint with system metrics                              |       ✅        |     N/A      |       N/A        |     ✅      |   ❌    |  ❌  | CE & EE |
+| [Outbound email (SMTP)](#outbound-email)              | Send email messages to users                                         |       ⤓        |      ⤓       |        ⤓         |     ✅      |   ⤓    |  ⤓  | CE & EE |
+| [PgBouncer Exporter](#pgbouncer-exporter)             | Prometheus endpoint with PgBouncer metrics                           |       ⚙        |      ❌       |        ❌         |     ✅      |   ❌    |  ❌  | CE & EE |
+| [PgBouncer](#pgbouncer)                               | Database connection pooling, failover                                |       ⚙        |      ❌       |        ❌         |     ✅      |   ❌    |  ❌  | EE Only |
+| [PostgreSQL Exporter](#postgresql-exporter)           | Prometheus endpoint with PostgreSQL metrics                          |       ✅        |      ✅       |        ✅         |     ✅      |   ❌    |  ❌  | CE & EE |
+| [PostgreSQL](#postgresql)                             | Database                                                             |       ✅        |      ✅       |        ✅         |     ✅      |   ⤓    |  ✅  | CE & EE |
+| [Praefect](#praefect)                                 | A transparent proxy between any Git client and Gitaly storage nodes. |       ✅        |      ❌       |        ❌         |     ✅      |   ⚙    |  ✅  | CE & EE |
+| [Redis Exporter](#redis-exporter)                     | Prometheus endpoint with Redis metrics                               |       ✅        |      ✅       |        ✅         |     ✅      |   ❌    |  ❌  | CE & EE |
+| [Redis](#redis)                                       | Caching service                                                      |       ✅        |      ✅       |        ✅         |     ✅      |   ⤓    |  ✅  | CE & EE |
+| [Registry](#registry)                                 | Container registry, allows pushing and pulling of images             |       ⚙        |      ✅       |        ✅         |     ✅      |   ⤓    |  ⚙  | CE & EE |
+| [Runner](#gitlab-runner)                              | Executes GitLab CI/CD jobs                                           |       ⤓        |      ✅       |        ⚙         |     ✅      |   ⚙    |  ⚙  | CE & EE |
+| [Sentry integration](#sentry)                         | Error tracking for deployed apps                                     |       ⤓        |      ⤓       |        ⤓         |     ⤓      |   ⤓    |  ⤓  | CE & EE |
+| [Sidekiq](#sidekiq)                                   | Background jobs processor                                            |       ✅        |      ✅       |        ✅         |     ✅      |   ✅    |  ✅  | CE & EE |
+| [Unicorn (GitLab Rails)](#unicorn)                    | Handles requests for the web interface and API                       |       ✅        |      ✅       |        ✅         |     ✅      |   ⚙    |  ✅  | CE & EE |
 
 ### Component details
 
@@ -180,76 +189,115 @@ GitLab can be considered to have two layers from a process perspective:
 #### Alertmanager
 
 - [Project page](https://github.com/prometheus/alertmanager/blob/master/README.md)
-- Configuration: [Omnibus][alertmanager-omnibus], [Charts][alertmanager-charts]
+- Configuration:
+  - [Omnibus](https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template)
+  - [Charts](https://github.com/helm/charts/tree/master/stable/prometheus)
 - Layer: Monitoring
 - Process: `alertmanager`
+- GitLab.com: [Monitoring of GitLab.com](https://about.gitlab.com/handbook/engineering/monitoring/)
 
 [Alert manager](https://prometheus.io/docs/alerting/alertmanager/) is a tool provided by Prometheus that _"handles alerts sent by client applications such as the Prometheus server. It takes care of deduplicating, grouping, and routing them to the correct receiver integration such as email, PagerDuty, or OpsGenie. It also takes care of silencing and inhibition of alerts."_ You can read more in [issue #45740](https://gitlab.com/gitlab-org/gitlab-foss/issues/45740) about what we will be alerting on.
 
 #### Certificate management
 
-- Project page: [Omnibus](https://github.com/certbot/certbot/blob/master/README.rst), [Charts](https://github.com/jetstack/cert-manager/blob/master/README.md)
-- Configuration: [Omnibus][certificate-management-omnibus], [Charts][certificate-management-charts], [Source][certificate-management-source], [GDK][certificate-management-gdk]
+- Project page:
+  - [Omnibus](https://github.com/certbot/certbot/blob/master/README.rst)
+  - [Charts](https://github.com/jetstack/cert-manager/blob/master/README.md)
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/settings/ssl.html)
+  - [Charts](https://docs.gitlab.com/charts/installation/tls.html)
+  - [Source](../install/installation.md#using-https)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/https.md)
 - Layer: Core Service (Processor)
+- GitLab.com: [Secrets Management](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#secrets-management)
 
 #### Consul
 
 - [Project page](https://github.com/hashicorp/consul/blob/master/README.md)
-- Configuration: [Omnibus][consul-omnibus], [Charts][consul-charts]
+- Configuration:
+  - [Omnibus](../administration/high_availability/consul.md)
+  - [Charts](https://docs.gitlab.com/charts/installation/deployment.html#postgresql)
 - Layer: Core Service (Data)
+- GitLab.com: [Consul](../user/gitlab_com/index.md#consul)
 
 Consul is a tool for service discovery and configuration. Consul is distributed, highly available, and extremely scalable.
 
 #### Database migrations
 
-- Configuration: [Omnibus][registry-omnibus], [Charts][registry-charts], [Source][database-migrations-source]
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/settings/database.html#disabling-automatic-database-migration)
+  - [Charts](https://docs.gitlab.com/charts/charts/gitlab/migrations/)
+  - [Source](../update/upgrading_from_source.md#13-install-libs-migrations-etc)
 - Layer: Core Service (Data)
 
 #### Elasticsearch
 
 - [Project page](https://github.com/elastic/elasticsearch/)
-- Configuration: [Omnibus][elasticsearch-omnibus], [Charts][elasticsearch-charts], [Source][elasticsearch-source], [GDK][elasticsearch-gdk]
+- Configuration:
+  - [Omnibus](../integration/elasticsearch.md)
+  - [Charts](../integration/elasticsearch.md)
+  - [Source](../integration/elasticsearch.md)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/elasticsearch.md)
 - Layer: Core Service (Data)
+- GitLab.com: [Get Advanced Global Search working on GitLab.com](https://gitlab.com/groups/gitlab-org/-/epics/153) epic.
 
 Elasticsearch is a distributed RESTful search engine built for the cloud.
 
 #### Gitaly
 
 - [Project page](https://gitlab.com/gitlab-org/gitaly/blob/master/README.md)
-- Configuration: [Omnibus][gitaly-omnibus], [Charts][gitaly-charts], [Source][gitaly-source]
+- Configuration:
+  - [Omnibus](../administration/gitaly/index.md)
+  - [Charts](https://docs.gitlab.com/charts/charts/gitlab/gitaly/)
+  - [Source](../install/installation.md#install-gitaly)
 - Layer: Core Service (Data)
 - Process: `gitaly`
+- GitLab.com: [Service Architecture](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture)
 
 Gitaly is a service designed by GitLab to remove our need for NFS for Git storage in distributed deployments of GitLab (think GitLab.com or High Availability Deployments). As of 11.3.0, this service handles all Git level access in GitLab. You can read more about the project [in the project's readme](https://gitlab.com/gitlab-org/gitaly).
 
 #### Praefect
 
 - [Project page](https://gitlab.com/gitlab-org/gitaly/blob/master/README.md)
-- Configuration: [Omnibus][gitaly-omnibus], [Source][praefect-source]
+- Configuration:
+  - [Omnibus](../administration/gitaly/index.md)
+  - [Source](../install/installation.md#install-gitaly)
 - Layer: Core Service (Data)
 - Process: `praefect`
+- GitLab.com: [Service Architecture](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture)
 
 Praefect is a transparent proxy between each Git client and the Gitaly coordinating the replication of
 repository updates to secondary nodes.
 
 #### GitLab Geo
 
-- Configuration: [Omnibus][geo-omnibus], [Charts][geo-charts], [GDK][geo-gdk]
+- Configuration:
+  - [Omnibus](../administration/geo/replication/index.md#setup-instructions)
+  - [Charts](https://gitlab.com/gitlab-org/charts/gitlab/issues/8)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/geo.md)
 - Layer: Core Service (Processor)
 
 #### GitLab Exporter
 
 - [Project page](https://gitlab.com/gitlab-org/gitlab-exporter)
-- Configuration: [Omnibus][gitlab-exporter-omnibus], [Charts][gitlab-exporter-charts]
+- Configuration:
+  - [Omnibus](../administration/monitoring/prometheus/gitlab_exporter.md)
+  - [Charts](https://docs.gitlab.com/charts/charts/gitlab/gitlab-exporter/index.html)
 - Layer: Monitoring
 - Process: `gitlab-exporter`
+- GitLab.com: [Monitoring of GitLab.com](https://about.gitlab.com/handbook/engineering/monitoring/)
 
 GitLab Exporter is a process designed in house that allows us to export metrics about GitLab application internals to Prometheus. You can read more [in the project's readme](https://gitlab.com/gitlab-org/gitlab-exporter).
 
 #### GitLab Pages
 
-- Configuration: [Omnibus][pages-omnibus], [Charts][pages-charts], [Source][pages-source], [GDK][pages-gdk]
+- Configuration:
+  - [Omnibus](../administration/pages/index.md)
+  - [Charts](https://gitlab.com/gitlab-org/charts/gitlab/issues/37)
+  - [Source](../install/installation.md#install-gitlab-pages)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/pages.md)
 - Layer: Core Service (Processor)
+- GitLab.com: [GitLab Pages](../user/gitlab_com/index.md#gitlab-pages)
 
 GitLab Pages is a feature that allows you to publish static websites directly from a repository in GitLab.
 
@@ -258,8 +306,13 @@ You can use it either for personal or business websites, such as portfolios, doc
 #### GitLab Runner
 
 - [Project page](https://gitlab.com/gitlab-org/gitlab-runner/blob/master/README.md)
-- Configuration: [Omnibus][runner-omnibus], [Charts][runner-charts], [Source][runner-source], [GDK][runner-gdk]
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/runner/)
+  - [Charts](https://docs.gitlab.com/runner/install/kubernetes.html)
+  - [Source](https://docs.gitlab.com/runner/)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/runner.md)
 - Layer: Core Service (Processor)
+- GitLab.com: [Runner](../user/gitlab_com/index.md#shared-runners)
 
 GitLab Runner runs tests and sends the results to GitLab.
 
@@ -268,40 +321,61 @@ GitLab CI/CD is the open-source continuous integration service included with Git
 #### GitLab Shell
 
 - [Project page](https://gitlab.com/gitlab-org/gitlab-shell/blob/master/README.md)
-- Configuration: [Omnibus][shell-omnibus], [Charts][shell-charts], [Source][shell-source], [GDK][gitlab-yml]
+- Configuration:
+  - [Omnibus](https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template)
+  - [Charts](https://docs.gitlab.com/charts/charts/gitlab/gitlab-shell/)
+  - [Source](../install/installation.md#install-gitlab-shell)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
 - Layer: Core Service (Processor)
+- GitLab.com: [Service Architecture](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture)
 
 [GitLab Shell](https://gitlab.com/gitlab-org/gitlab-shell) is a program designed at GitLab to handle SSH-based `git` sessions, and modifies the list of authorized keys. GitLab Shell is not a Unix shell nor a replacement for Bash or Zsh.
 
 #### GitLab Workhorse
 
 - [Project page](https://gitlab.com/gitlab-org/gitlab-workhorse/blob/master/README.md)
-- Configuration: [Omnibus][workhorse-omnibus], [Charts][workhorse-charts], [Source][workhorse-source]
+- Configuration:
+  - [Omnibus](https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template)
+  - [Charts](https://docs.gitlab.com/charts/charts/gitlab/unicorn/)
+  - [Source](../install/installation.md#install-gitlab-workhorse)
 - Layer: Core Service (Processor)
 - Process: `gitlab-workhorse`
+- GitLab.com: [Service Architecture](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture)
 
 [GitLab Workhorse](https://gitlab.com/gitlab-org/gitlab-workhorse) is a program designed at GitLab to help alleviate pressure from Unicorn. You can read more about the [historical reasons for developing](https://about.gitlab.com/blog/2016/04/12/a-brief-history-of-gitlab-workhorse/). It's designed to act as a smart reverse proxy to help speed up GitLab as a whole.
 
 #### Grafana
 
 - [Project page](https://github.com/grafana/grafana/blob/master/README.md)
-- Configuration: [Omnibus][grafana-omnibus], [Charts][grafana-charts]
+- Configuration:
+  - [Omnibus](../administration/monitoring/performance/grafana_configuration.md)
+  - [Charts](https://github.com/helm/charts/tree/master/stable/grafana)
 - Layer: Monitoring
+- GitLab.com: [GitLab triage Grafana dashboard](https://dashboards.gitlab.com/d/RZmbBr7mk/gitlab-triage?refresh=30s)
 
 Grafana is an open source, feature rich metrics dashboard and graph editor for Graphite, Elasticsearch, OpenTSDB, Prometheus, and InfluxDB.
 
 #### Jaeger
 
 - [Project page](https://github.com/jaegertracing/jaeger/blob/master/README.md)
-- Configuration: [Omnibus][jaeger-omnibus], [Charts][jaeger-charts], [Source][jaeger-source], [GDK][jaeger-gdk]
+- Configuration:
+  - [Omnibus](https://gitlab.com/gitlab-org/omnibus-gitlab/issues/4104)
+  - [Charts](https://gitlab.com/gitlab-org/charts/gitlab/issues/1320)
+  - [Source](../development/distributed_tracing.md#enabling-distributed-tracing)
+  - [GDK](../development/distributed_tracing.md#using-jaeger-in-the-gitlab-development-kit)
 - Layer: Monitoring
+- GitLab.com: [Configuration to enable Tracing for a GitLab instance](https://gitlab.com/gitlab-org/omnibus-gitlab/issues/4104) issue.
 
-Jaeger, inspired by Dapper and OpenZipkin, is a distributed tracing system. It can be used for monitoring microservices-based distributed systems.
+Jaeger, inspired by Dapper and OpenZipkin, is a distributed tracing system.
+It can be used for monitoring microservices-based distributed systems.
+
+For monitoring deployed apps, see [Jaeger tracing documentation](../user/project/operations/tracing.md)
 
 #### Logrotate
 
 - [Project page](https://github.com/logrotate/logrotate/blob/master/README.md)
-- Configuration: [Omnibus](https://docs.gitlab.com/omnibus/settings/logs.html#logrotate)
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/settings/logs.html#logrotate)
 - Layer: Core Service
 - Process: `logrotate`
 
@@ -310,86 +384,122 @@ GitLab is comprised of a large number of services that all log. We started bundl
 #### Mattermost
 
 - [Project page](https://github.com/mattermost/mattermost-server/blob/master/README.md)
-- Configuration: [Omnibus][mattermost-omnibus], [Charts][mattermost-charts]
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/gitlab-mattermost/)
+  - [Charts](https://docs.mattermost.com/install/install-mmte-helm-gitlab-helm.html)
 - Layer: Core Service (Processor)
+- GitLab.com: [Mattermost](../user/project/integrations/mattermost.md)
 
 Mattermost is an open source, private cloud, Slack-alternative from <https://mattermost.com>.
 
 #### MinIO
 
 - [Project page](https://github.com/minio/minio/blob/master/README.md)
-- Configuration: [Omnibus][minio-omnibus], [Charts][minio-charts], [GDK][minio-gdk]
+- Configuration:
+  - [Omnibus](https://min.io/download)
+  - [Charts](https://docs.gitlab.com/charts/charts/minio/)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/object_storage.md)
 - Layer: Core Service (Data)
+- GitLab.com: [Storage Architecture](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#storage-architecture)
 
 MinIO is an object storage server released under Apache License v2.0. It is compatible with Amazon S3 cloud storage service. It is best suited for storing unstructured data such as photos, videos, log files, backups, and container / VM images. Size of an object can range from a few KBs to a maximum of 5TB.
 
 #### NGINX
 
-- Project page: [Omnibus](https://github.com/nginx/nginx), [Charts](https://github.com/kubernetes/ingress-nginx/blob/master/README.md)
-- Configuration: [Omnibus][nginx-omnibus], [Charts][nginx-charts], [Source][nginx-source]
+- Project page:
+  - [Omnibus](https://github.com/nginx/nginx)
+  - [Charts](https://github.com/kubernetes/ingress-nginx/blob/master/README.md)
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/settings/)
+  - [Charts](https://docs.gitlab.com/charts/charts/nginx/)
+  - [Source](../install/installation.md#9-nginx)
 - Layer: Core Service (Processor)
 - Process: `nginx`
+- GitLab.com: [Service Architecture](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture)
 
 NGINX has an Ingress port for all HTTP requests and routes them to the appropriate sub-systems within GitLab. We are bundling an unmodified version of the popular open source webserver.
 
 #### Node Exporter
 
 - [Project page](https://github.com/prometheus/node_exporter/blob/master/README.md)
-- Configuration: [Omnibus][node-exporter-omnibus], [Charts][node-exporter-charts]
+- Configuration:
+  - [Omnibus](../administration/monitoring/prometheus/node_exporter.md)
+  - [Charts](https://gitlab.com/gitlab-org/charts/gitlab/issues/1332)
 - Layer: Monitoring
 - Process: `node-exporter`
+- GitLab.com: [Monitoring of GitLab.com](https://about.gitlab.com/handbook/engineering/monitoring/)
 
 [Node Exporter](https://github.com/prometheus/node_exporter) is a Prometheus tool that gives us metrics on the underlying machine (think CPU/Disk/Load). It's just a packaged version of the common open source offering from the Prometheus project.
 
 #### PgBouncer
 
 - [Project page](https://github.com/pgbouncer/pgbouncer/blob/master/README.md)
-- Configuration: [Omnibus][pgbouncer-omnibus], [Charts][pgbouncer-charts]
+- Configuration:
+  - [Omnibus](../administration/high_availability/pgbouncer.md)
+  - [Charts](https://docs.gitlab.com/charts/installation/deployment.html#postgresql)
 - Layer: Core Service (Data)
+- GitLab.com: [Database Architecture](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#database-architecture)
 
 Lightweight connection pooler for PostgreSQL.
 
 #### PgBouncer Exporter
 
 - [Project page](https://github.com/stanhu/pgbouncer_exporter/blob/master/README.md)
-- Configuration: [Omnibus][pgbouncer-exporter-omnibus], [Charts][pgbouncer-exporter-charts]
+- Configuration:
+  - [Omnibus](../administration/monitoring/prometheus/pgbouncer_exporter.md)
+  - [Charts](https://docs.gitlab.com/charts/installation/deployment.html#postgresql)
 - Layer: Monitoring
+- GitLab.com: [Monitoring of GitLab.com](https://about.gitlab.com/handbook/engineering/monitoring/)
 
 Prometheus exporter for PgBouncer. Exports metrics at 9127/metrics.
 
 #### PostgreSQL
 
 - [Project page](https://github.com/postgres/postgres/blob/master/README)
-- Configuration: [Omnibus][postgres-omnibus], [Charts][postgres-charts], [Source][postgres-source]
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/settings/database.html)
+  - [Charts](https://github.com/helm/charts/tree/master/stable/postgresql)
+  - [Source](../install/installation.md#6-database)
 - Layer: Core Service (Data)
 - Process: `postgresql`
+- GitLab.com: [PostgreSQL](../user/gitlab_com/index.md#postgresql)
 
 GitLab packages the popular Database to provide storage for Application meta data and user information.
 
 #### PostgreSQL Exporter
 
 - [Project page](https://github.com/wrouesnel/postgres_exporter/blob/master/README.md)
-- Configuration: [Omnibus][postgres-exporter-omnibus], [Charts][postgres-exporter-charts]
+- Configuration:
+  - [Omnibus](../administration/monitoring/prometheus/postgres_exporter.md)
+  - [Charts](https://github.com/helm/charts/tree/master/stable/postgresql)
 - Layer: Monitoring
 - Process: `postgres-exporter`
+- GitLab.com: [Monitoring of GitLab.com](https://about.gitlab.com/handbook/engineering/monitoring/)
 
 [`postgres_exporter`](https://github.com/wrouesnel/postgres_exporter) is the community provided Prometheus exporter that will deliver data about PostgreSQL to Prometheus for use in Grafana Dashboards.
 
 #### Prometheus
 
 - [Project page](https://github.com/prometheus/prometheus/blob/master/README.md)
-- Configuration: [Omnibus][prometheus-omnibus], [Charts][prometheus-charts]
+- Configuration:
+  - [Omnibus](../administration/monitoring/prometheus/index.md)
+  - [Charts](https://github.com/helm/charts/tree/master/stable/prometheus)
 - Layer: Monitoring
 - Process: `prometheus`
+- GitLab.com: [Prometheus](../user/gitlab_com/index.md#prometheus)
 
 Prometheus is a time-series tool that helps GitLab administrators expose metrics about the individual processes used to provide GitLab the service.
 
 #### Redis
 
 - [Project page](https://github.com/antirez/redis/blob/unstable/README.md)
-- Configuration: [Omnibus][redis-omnibus], [Charts][redis-charts], [Source][redis-source]
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/settings/redis.html)
+  - [Charts](https://docs.gitlab.com/charts/charts/redis/)
+  - [Source](../install/installation.md#7-redis)
 - Layer: Core Service (Data)
 - Process: `redis`
+- GitLab.com: [Service Architecture](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/#service-architecture)
 
 Redis is packaged to provide a place to store:
 
@@ -400,17 +510,25 @@ Redis is packaged to provide a place to store:
 #### Redis Exporter
 
 - [Project page](https://github.com/oliver006/redis_exporter/blob/master/README.md)
-- Configuration: [Omnibus][redis-exporter-omnibus], [Charts][redis-exporter-charts]
+- Configuration:
+  - [Omnibus](../administration/monitoring/prometheus/redis_exporter.md)
+  - [Charts](https://docs.gitlab.com/charts/charts/redis/)
 - Layer: Monitoring
 - Process: `redis-exporter`
+- GitLab.com: [Monitoring of GitLab.com](https://about.gitlab.com/handbook/engineering/monitoring/)
 
 [Redis Exporter](https://github.com/oliver006/redis_exporter) is designed to give specific metrics about the Redis process to Prometheus so that we can graph these metrics in Grafana.
 
 #### Registry
 
 - [Project page](https://github.com/docker/distribution/blob/master/README.md)
-- Configuration: [Omnibus][registry-omnibus], [Charts][registry-charts], [Source][registry-source], [GDK][registry-gdk]
+- Configuration:
+  - [Omnibus](../update/upgrading_from_source.md#13-install-libs-migrations-etc)
+  - [Charts](https://docs.gitlab.com/charts/charts/registry/)
+  - [Source](../administration/packages/container_registry.md#enable-the-container-registry)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/registry.md)
 - Layer: Core Service (Processor)
+- GitLab.com: [GitLab Container Registry](../user/packages/container_registry/index.md#build-and-push-images-using-gitlab-cicd)
 
 The registry is what users use to store their own Docker images. The bundled
 registry uses NGINX as a load balancer and GitLab as an authentication manager.
@@ -425,50 +543,99 @@ An external registry can also be configured to use GitLab as an auth endpoint.
 #### Sentry
 
 - [Project page](https://github.com/getsentry/sentry/)
-- Configuration: [Omnibus][sentry-omnibus], [Charts][sentry-charts], [Source][gitlab-yml], [GDK][gitlab-yml]
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/settings/configuration.html#error-reporting-and-logging-with-sentry)
+  - [Charts](https://gitlab.com/gitlab-org/charts/gitlab/issues/1319)
+  - [Source](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
 - Layer: Monitoring
+- GitLab.com: [Searching Sentry](https://about.gitlab.com/handbook/support/workflows/500_errors.html#searching-sentry)
+
+Sentry fundamentally is a service that helps you monitor and fix crashes in realtime.
+The server is in Python, but it contains a full API for sending events from any language, in any application.
 
-Sentry fundamentally is a service that helps you monitor and fix crashes in realtime. The server is in Python, but it contains a full API for sending events from any language, in any application.
+For monitoring deployed apps, see the [Sentry integration docs](../user/project/operations/error_tracking.md)
 
 #### Sidekiq
 
 - [Project page](https://github.com/mperham/sidekiq/blob/master/README.md)
-- Configuration: [Omnibus][sidekiq-omnibus], [Charts][sidekiq-charts], [Source][gitlab-yml], [GDK][gitlab-yml]
+- Configuration:
+  - [Omnibus](https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template)
+  - [Charts](https://docs.gitlab.com/charts/charts/gitlab/sidekiq/)
+  - [Minikube Minimal](https://docs.gitlab.com/charts/charts/gitlab/sidekiq/index.html)
+  - [Source](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
 - Layer: Core Service (Processor)
 - Process: `sidekiq`
+- GitLab.com: [Sidekiq](../user/gitlab_com/index.md#Sidekiq)
 
 Sidekiq is a Ruby background job processor that pulls jobs from the Redis queue and processes them. Background jobs allow GitLab to provide a faster request/response cycle by moving work into the background.
 
 #### Unicorn
 
 - [Project page](https://gitlab.com/gitlab-org/gitlab/blob/master/README.md)
-- Configuration: [Omnibus][unicorn-omnibus], [Charts][unicorn-charts], [Source][unicorn-source], [GDK][gitlab-yml]
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/settings/unicorn.html)
+  - [Charts](https://docs.gitlab.com/charts/charts/gitlab/unicorn/)
+  - [Source](../install/installation.md#configure-it)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
 - Layer: Core Service (Processor)
 - Process: `unicorn`
+- GitLab.com: [Unicorn](../user/gitlab_com/index.md#unicorn)
 
 [Unicorn](https://yhbt.net/unicorn/) is a Ruby application server that is used to run the core Rails Application that provides the user facing features in GitLab. Often process output you will see this as `bundle` or `config.ru` depending on the GitLab version.
 
 #### LDAP Authentication
 
-- Configuration: [Omnibus][ldap-omnibus], [Charts][ldap-charts], [Source][gitlab-yml], [GDK][ldap-gdk]
+- Configuration:
+  - [Omnibus](../administration/auth/ldap.md)
+  - [Charts](https://docs.gitlab.com/charts/charts/globals.html#ldap)
+  - [Source](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/ldap.md)
 - Layer: Core Service (Processor)
+- GitLab.com: [Product Tiers](https://about.gitlab.com/pricing/#gitlab-com)
 
 #### Outbound Email
 
-- Configuration: [Omnibus][outbound-email-omnibus], [Charts][outbound-email-charts], [Source][gitlab-yml], [GDK][gitlab-yml]
+- Configuration:
+  - [Omnibus](https://docs.gitlab.com/omnibus/settings/smtp.html)
+  - [Charts](https://docs.gitlab.com/charts/installation/command-line-options.html#outgoing-email-configuration)
+  - [Source](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
 - Layer: Core Service (Processor)
+- GitLab.com: [Mail configuration](../user/gitlab_com/index.md#mail-configuration)
 
 #### Inbound Email
 
-- Configuration: [Omnibus][inbound-email-omnibus], [Charts][inbound-email-charts], [Source][gitlab-yml], [GDK][gitlab-yml]
+- Configuration:
+  - [Omnibus](../administration/incoming_email.md)
+  - [Charts](https://docs.gitlab.com/charts/installation/command-line-options.html#incoming-email-configuration)
+  - [Source](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
+  - [GDK](https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example)
 - Layer: Core Service (Processor)
+- GitLab.com: [Mail configuration](../user/gitlab_com/index.md#mail-configuration)
 
 #### GitLab Managed Apps
 
-- Configuration: [Omnibus][managed-k8s-apps], [Charts][managed-k8s-apps], [Source][managed-k8s-apps], [GDK][managed-k8s-apps]
+- Configuration:
+  - [Omnibus](../user/project/clusters/index.md#installing-applications)
+  - [Charts](../user/project/clusters/index.md#installing-applications)
+  - [Source](../user/project/clusters/index.md#installing-applications)
+  - [GDK](../user/project/clusters/index.md#installing-applications)
 - Layer: Core Service (Processor)
 
-GitLab provides [GitLab Managed Apps](../user/project/clusters/index.md#installing-applications), a one-click install for various applications which can be added directly to your configured cluster. These applications are needed for Review Apps and deployments when using Auto DevOps. You can install them after you create a cluster.
+GitLab provides [GitLab Managed Apps](../user/project/clusters/index.md#installing-applications),
+a one-click install for various applications which can be added directly to your configured cluster.
+These applications are needed for Review Apps and deployments when using Auto DevOps.
+You can install them after you create a cluster. This includes:
+
+- [Helm](https://helm.sh/docs/)
+- [Ingress](https://kubernetes.io/docs/concepts/services-networking/ingress/)
+- [Cert-Manager](https://cert-manager.io/docs/)
+- [Prometheus](https://prometheus.io/docs/introduction/overview/)
+- a [Runner](https://docs.gitlab.com/runner/)
+- [JupyterHub](https://jupyter.org)
+- [Knative](https://cloud.google.com/knative/)
 
 ## GitLab by Request Type
 
@@ -740,96 +907,3 @@ Note: It is recommended to log into the `git` user using `sudo -i -u git` or `su
 ## GitLab.com
 
 We've also detailed [our architecture of GitLab.com](https://about.gitlab.com/handbook/engineering/infrastructure/production/architecture/) but this is probably over the top unless you have millions of users.
-
-[alertmanager-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template
-[alertmanager-charts]: https://github.com/helm/charts/tree/master/stable/prometheus
-[nginx-omnibus]: https://docs.gitlab.com/omnibus/settings/
-[nginx-charts]: https://docs.gitlab.com/charts/charts/nginx/
-[nginx-source]: ../install/installation.md#9-nginx
-[unicorn-omnibus]: https://docs.gitlab.com/omnibus/settings/unicorn.html
-[unicorn-charts]: https://docs.gitlab.com/charts/charts/gitlab/unicorn/
-[unicorn-source]: ../install/installation.md#configure-it
-[gitlab-yml]: https://gitlab.com/gitlab-org/gitlab/blob/master/config/gitlab.yml.example
-[sidekiq-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template
-[sidekiq-charts]: https://docs.gitlab.com/charts/charts/gitlab/sidekiq/
-[gitaly-omnibus]: ../administration/gitaly/index.md
-[gitaly-charts]: https://docs.gitlab.com/charts/charts/gitlab/gitaly/
-[gitaly-source]: ../install/installation.md#install-gitaly
-[praefect-source]: ../install/installation.md#install-gitaly
-[workhorse-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template
-[workhorse-charts]: https://docs.gitlab.com/charts/charts/gitlab/unicorn/
-[workhorse-source]: ../install/installation.md#install-gitlab-workhorse
-[shell-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/blob/master/files/gitlab-config-template/gitlab.rb.template
-[shell-charts]: https://docs.gitlab.com/charts/charts/gitlab/gitlab-shell/
-[shell-source]: ../install/installation.md#install-gitlab-shell
-[pages-omnibus]: ../administration/pages/index.md
-[pages-charts]: https://gitlab.com/gitlab-org/charts/gitlab/issues/37
-[pages-source]: ../install/installation.md#install-gitlab-pages
-[pages-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/pages.md
-[registry-omnibus]: ../administration/packages/container_registry.md#container-registry-domain-configuration
-[registry-charts]: https://docs.gitlab.com/charts/charts/registry/
-[registry-source]: ../administration/packages/container_registry.md#enable-the-container-registry
-[registry-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/registry.md
-[redis-omnibus]: https://docs.gitlab.com/omnibus/settings/redis.html
-[redis-charts]: https://docs.gitlab.com/charts/charts/redis/
-[redis-source]: ../install/installation.md#7-redis
-[postgres-omnibus]: https://docs.gitlab.com/omnibus/settings/database.html
-[postgres-charts]: https://github.com/helm/charts/tree/master/stable/postgresql
-[postgres-source]: ../install/installation.md#6-database
-[pgbouncer-omnibus]: ../administration/high_availability/pgbouncer.md
-[pgbouncer-charts]: https://docs.gitlab.com/charts/installation/deployment.html#postgresql
-[consul-omnibus]: ../administration/high_availability/consul.md
-[consul-charts]: https://docs.gitlab.com/charts/installation/deployment.html#postgresql
-[prometheus-omnibus]: ../administration/monitoring/prometheus/index.md
-[prometheus-charts]: https://github.com/helm/charts/tree/master/stable/prometheus
-[grafana-omnibus]: ../administration/monitoring/performance/grafana_configuration.md
-[grafana-charts]: https://github.com/helm/charts/tree/master/stable/grafana
-[sentry-omnibus]: https://docs.gitlab.com/omnibus/settings/configuration.html#error-reporting-and-logging-with-sentry
-[sentry-charts]: https://gitlab.com/gitlab-org/charts/gitlab/issues/1319
-[jaeger-omnibus]: https://gitlab.com/gitlab-org/omnibus-gitlab/issues/4104
-[jaeger-charts]: https://gitlab.com/gitlab-org/charts/gitlab/issues/1320
-[jaeger-source]: ../development/distributed_tracing.md#enabling-distributed-tracing
-[jaeger-gdk]: ../development/distributed_tracing.html#using-jaeger-in-the-gitlab-development-kit
-[redis-exporter-omnibus]: ../administration/monitoring/prometheus/redis_exporter.md
-[redis-exporter-charts]: https://docs.gitlab.com/charts/charts/redis/
-[postgres-exporter-omnibus]: ../administration/monitoring/prometheus/postgres_exporter.md
-[postgres-exporter-charts]: https://github.com/helm/charts/tree/master/stable/postgresql
-[pgbouncer-exporter-omnibus]: ../administration/monitoring/prometheus/pgbouncer_exporter.md
-[pgbouncer-exporter-charts]: https://docs.gitlab.com/charts/installation/deployment.html#postgresql
-[gitlab-exporter-omnibus]: ../administration/monitoring/prometheus/gitlab_exporter.md
-[gitlab-exporter-charts]: https://docs.gitlab.com/charts/charts/gitlab/gitlab-exporter/index.html
-[node-exporter-omnibus]: ../administration/monitoring/prometheus/node_exporter.md
-[node-exporter-charts]: https://gitlab.com/gitlab-org/charts/gitlab/issues/1332
-[mattermost-omnibus]: https://docs.gitlab.com/omnibus/gitlab-mattermost/
-[mattermost-charts]: https://docs.mattermost.com/install/install-mmte-helm-gitlab-helm.html
-[minio-omnibus]: https://min.io/download
-[minio-charts]: https://docs.gitlab.com/charts/charts/minio/
-[minio-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/object_storage.md
-[runner-omnibus]: https://docs.gitlab.com/runner/
-[runner-charts]: https://docs.gitlab.com/runner/install/kubernetes.html
-[runner-source]: https://docs.gitlab.com/runner/
-[runner-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/runner.md
-[database-migrations-omnibus]: https://docs.gitlab.com/omnibus/settings/database.html#disabling-automatic-database-migration
-[database-migrations-charts]: https://docs.gitlab.com/charts/charts/gitlab/migrations/
-[database-migrations-source]: ../update/upgrading_from_source.md#13-install-libs-migrations-etc
-[certificate-management-omnibus]: https://docs.gitlab.com/omnibus/settings/ssl.html
-[certificate-management-charts]: https://docs.gitlab.com/charts/installation/tls.html
-[certificate-management-source]: ../install/installation.md#using-https
-[certificate-management-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/https.md
-[geo-omnibus]: ../administration/geo/replication/index.md#setup-instructions
-[geo-charts]: https://gitlab.com/gitlab-org/charts/gitlab/issues/8
-[geo-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/geo.md
-[ldap-omnibus]: ../administration/auth/ldap.md
-[ldap-charts]: https://docs.gitlab.com/charts/charts/globals.html#ldap
-[ldap-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/ldap.md
-[outbound-email-omnibus]: https://docs.gitlab.com/omnibus/settings/smtp.html
-[outbound-email-charts]: https://docs.gitlab.com/charts/installation/command-line-options.html#outgoing-email-configuration
-[inbound-email-omnibus]: ../administration/incoming_email.md
-[inbound-email-charts]: https://docs.gitlab.com/charts/installation/command-line-options.html#incoming-email-configuration
-[elasticsearch-omnibus]: ../integration/elasticsearch.md
-[elasticsearch-charts]: ../integration/elasticsearch.md
-[elasticsearch-source]: ../integration/elasticsearch.md
-[elasticsearch-gdk]: https://gitlab.com/gitlab-org/gitlab-development-kit/blob/master/doc/howto/elasticsearch.md
-[sentry-integration]: ../user/project/operations/error_tracking.md
-[jaeger-integration]: ../user/project/operations/tracing.md
-[managed-k8s-apps]: ../user/project/clusters/index.md#installing-applications
diff --git a/doc/development/lfs.md b/doc/development/lfs.md
index 9139bbaca0e..63271531960 100644
--- a/doc/development/lfs.md
+++ b/doc/development/lfs.md
@@ -5,7 +5,7 @@
 In April 2019, Francisco Javier López hosted a [Deep Dive] on GitLab's [Git LFS] implementation to share his domain specific knowledge with anyone who may work in this part of the code base in the future. You can find the [recording on YouTube], and the slides on [Google Slides] and in [PDF]. Everything covered in this deep dive was accurate as of GitLab 11.10, and while specific details may have changed since then, it should still serve as a good introduction.
 
 [Deep Dive]: https://gitlab.com/gitlab-org/create-stage/issues/1
-[Git LFS]: ../administration/lfs/manage_large_binaries_with_git_lfs.md
+[Git LFS]: ../topics/git/lfs/index.md
 [recording on YouTube]: https://www.youtube.com/watch?v=Yyxwcksr0Qc
 [Google Slides]: https://docs.google.com/presentation/d/1E-aw6-z0rYd0346YhIWE7E9A65zISL9iIMAOq2zaw9E/edit
 [PDF]: https://gitlab.com/gitlab-org/create-stage/uploads/07a89257a140db067bdfb484aecd35e1/Git_LFS_Deep_Dive__Create_.pdf