Add timescaledb to infrastructure

.rubocop.yml

@@ -11,7 +11,7 @@ AllCops:
   Exclude:
     - config/initializers/forbidden_yaml.rb
     - app/helpers/dynamic_errors_helper.rb
-    - !ruby/regexp /(vendor|bundle|bin|db/(migrate/|schema\.rb)|tmp|server)($|\/.*)/
+    - !ruby/regexp /(vendor|bundle|bin|db/(migrate/|schema\.rb|downloads_schema\.rb)|tmp|server)($|\/.*)/
   DisplayCopNames: true
   DisplayStyleGuide: true
   TargetRubyVersion: 3.3

CONTRIBUTING.md

@@ -218,6 +218,20 @@ RSTUF_API_URL="http://localhost:80" bin/rails s
 When everything is set up, start the web server with `rails server` and browse to
 [localhost:3000](http://localhost:3000)!
 
+#### Running with local Timescale
+
+There is early and experimental [TimescaleDB](https://docs.timescale.com/self-hosted/latest/) support in RubyGems.org for downloads statistics. When secondary `downloads` database is configured (using `database.yml` or by providing `DOWNLOADS_DATABASE_URL` environment variable), experimental features are automatically enabled.
+
+Localy, the easiest way is to run TimescaleDB using `docker-compose.yml` and configure using `database.yml.ts-sample`.
+
+```bash
+cp config/database.yml.ts-sample config/database.yml
+docker compose up -d db cache search # run required dependencies
+docker compose up -d downloads-db # run optional TimescaleDB dependency
+bin/rails db:setup # setup all databases, including optional Timescale one
+bin/rails s # start rails server as ususal
+```
+
 Database Layout
 ---------------
 

Gemfile

@@ -57,6 +57,7 @@ gem "phlex-rails", "~> 1.2"
 gem "discard", "~> 1.3"
 gem "user_agent_parser", "~> 2.18"
 gem "pghero", "~> 3.5"
+gem "timescaledb", "~> 0.2"
 
 # Admin dashboard
 gem "avo", "~> 2.51"

Gemfile.lock

@@ -702,6 +702,10 @@ GEM
     thor (1.3.1)
     tilt (2.3.0)
     timeout (0.4.1)
+    timescaledb (0.2.9)
+      activerecord
+      activesupport
+      pg (~> 1.2)
     toxiproxy (2.0.2)
     tpm-key_attestation (0.12.0)
       bindata (~> 2.4)
@@ -864,6 +868,7 @@ DEPENDENCIES
   strong_migrations (~> 1.8)
   tailwindcss-rails (~> 2.6)
   terser (~> 1.2)
+  timescaledb (~> 0.2)
   toxiproxy (~> 2.0)
   unpwn (~> 1.0)
   user_agent_parser (~> 2.18)
@@ -1139,6 +1144,7 @@ CHECKSUMS
   thor (1.3.1) sha256=fa7e3471d4f6a27138e3d9c9b0d4daac9c3d7383927667ae83e9ab42ae7401ef
   tilt (2.3.0) sha256=82dd903d61213c63679d28e404ee8e10d1b0fdf5270f1ad0898ec314cc3e745c
   timeout (0.4.1) sha256=6f1f4edd4bca28cffa59501733a94215407c6960bd2107331f0280d4abdebb9a
+  timescaledb (0.2.9) sha256=1d1382d5b889bf8ec6bcdcbf061c8e28234bc343911c81d48a9dfb22d9d5cfdc
   toxiproxy (2.0.2) sha256=2e3b53604fb921d40da3db8f78a52b3133fcae33e93d440725335b15974e440a
   tpm-key_attestation (0.12.0) sha256=e133d80cf24fef0e7a7dfad00fd6aeff01fc79875fbfc66cd8537bbd622b1e6d
   turbo-rails (1.5.0) sha256=b426cc762fb0940277729b3f1751a9f0bd269f5613c1d62ac73e5f0be7c7a83e

config/database.yml.ts-sample

@@ -0,0 +1,60 @@
+default: &default
+  adapter: postgresql
+  encoding: utf8
+  username: postgres
+  prepared_statements: false
+
+timescale: &timescale
+  adapter: postgresql
+  encoding: utf8
+  username: postgres
+  migrations_paths: db/downloads_migrate
+  port: 5434
+
+development:
+  primary:
+    <<: *default
+    database: rubygems_development
+    host: localhost
+    password: devpassword
+    pool: 5
+    timeout: 5000
+  downloads:
+    <<: *timescale
+    database: rubygems_tsdb_development
+    host: localhost
+    password: devpassword
+    pool: 5
+    timeout: 5000
+
+test:
+  primary:
+    <<: *default
+    database: rubygems_test
+    host: localhost
+    min_messages: warning
+    password: testpassword
+    pool: 5
+    timeout: 5000
+  downloads:
+    <<: *timescale
+    database: rubygems_tsdb_test
+    host: localhost
+    min_messages: warning
+    password: testpassword
+    pool: 5
+    timeout: 5000
+
+production:
+  primary:
+    <<: *default
+    database: rubygems_production
+    min_messages: error
+    pool: 30
+    reconnect: true
+  downloads:
+    <<: *timescale
+    database: rubygems_tsdb_production
+    min_messages: error
+    pool: 30
+    reconnect: true

db/downloads_schema.rb

@@ -0,0 +1,18 @@
+# This file is auto-generated from the current state of the database. Instead
+# of editing this file, please use the migrations feature of Active Record to
+# incrementally modify your database, and then regenerate this schema definition.
+#
+# This file is the source Rails uses to define your schema when running `bin/rails
+# db:schema:load`. When creating a new database, `bin/rails db:schema:load` tends to
+# be faster and is potentially less error prone than running all of your
+# migrations from scratch. Old migrations may fail to apply correctly if those
+# migrations use external dependencies or application code.
+#
+# It's strongly recommended that you check this file into your version control system.
+
+ActiveRecord::Schema[7.1].define(version: 0) do
+  # These are extensions that must be enabled in order to support this database
+  enable_extension "plpgsql"
+  enable_extension "timescaledb"
+
+end

docker-compose.yml

@@ -5,6 +5,12 @@ services:
       - "5432:5432"
     environment:
       - POSTGRES_HOST_AUTH_METHOD=trust
+  downloads-db:
+    image: timescale/timescaledb:2.15.1-pg16
+    ports:
+      - "5434:5432"
+    environment:
+      - POSTGRES_HOST_AUTH_METHOD=trust
   cache:
     image: memcached:1.4.39
     ports: