add: drone ci

fix: ci

fix: .drone docker rails version

add .drone caching

fix drone ci

.drone.yml

@@ -0,0 +1,145 @@
+kind: pipeline
+type: docker
+name: build and test
+
+steps:
+  - name: rubocop
+    image: circleci/ruby:2.7-bullseye-node-browsers-legacy
+    commands:
+      - sudo apt install --no-install-recommends -y libmagic-dev
+      - sudo -E bundle install 
+      - sudo -E bundle exec rubocop
+    volumes:
+      - name: gem-cache
+        path: /bundle
+      - name: tmp
+        path: /drone/src/tmp
+    failure: ignore
+
+
+  - name: build_test
+    image: circleci/ruby:2.7-bullseye-node-browsers-legacy
+    commands:
+      - sudo apt install --no-install-recommends -y libmagic-dev
+      - echo 'Wait for db container'; sleep 30
+      - bundle config set path '/bundle'
+      - bundle config set without 'production'
+      - sudo -E bundle install
+      - sudo -E bundle exec rake foodsoft:setup_development_docker || true
+      - sudo -E bundle exec rake rspec-rerun:spec
+    volumes:
+      - name: gem-cache
+        path: /bundle
+      - name: tmp
+        path: /drone/src/tmp
+    environment:
+      RAILS_LOG_TO_STDOUT: true
+      RAILS_ENV: test
+      COVERAGE: lcov
+      DATABASE_URL: mysql2://user:password@mariadb/test?encoding=utf8mb4
+      DATABASE_CLEANER_ALLOW_REMOTE_DATABASE_URL: true
+      PARALLEL_TEST_PROCESSORS: 60
+
+services:
+  - name: mariadb
+    image: mariadb
+    environment:
+      MYSQL_USER: user
+      MYSQL_PASSWORD: password
+      MYSQL_DATABASE: test
+      MYSQL_ROOT_PASSWORD: password
+
+volumes:
+  - name: gem-cache
+    host:
+      path: /tmp/cache
+  - name: tmp
+    temp: {}
+---
+
+kind: pipeline
+type: docker
+name: docker build and deploy
+steps:
+  - name: build and publish docker image
+    image: plugins/docker
+    settings:
+      registry: git.local-it.org
+      repo: git.local-it.org/foodsoft/foodsoft
+      username: philipp
+      password:
+        from_secret: docker_registry
+      tags:
+        - latest
+        - ${DRONE_BRANCH}
+        - ${DRONE_COMMIT:0:8}
+      cache_from:
+        - "git.local-it.org/foodsoft/foodsoft:latest"
+        - "git.local-it.org/foodsoft/foodsoft:${DRONE_BRANCH}"
+  - name: deployment
+    image: git.local-it.org/philipp/stack-ssh-deply:latest
+    settings:
+      stack: "foodsoft_${DRONE_COMMIT:0:8}"
+      compose: "deployment/compose.yml"
+      deploy_key:
+        from_secret: drone_deploy_key
+      host: "dev.local-it.cloud"
+      user: "root"
+      port: 22
+      reg_user: philipp
+      reg_pass:
+        from_secret: docker_registry
+      reg_url: git.local-it.org
+      image: git.local-it.org/foodsoft/foodsoft:${DRONE_COMMIT:0:8}
+      generate_secrets: true
+      networks:
+        - proxy
+    environment:
+      IMAGE: git.local-it.org/foodsoft/foodsoft:${DRONE_COMMIT:0:8}
+      STACK_NAME: "foodsoft_${DRONE_COMMIT:0:8}"
+      DOMAIN: "${DRONE_COMMIT:0:8}.foodsoft.dev.local-it.cloud"
+      LETS_ENCRYPT_ENV: production
+      FOODCOOP_MULTI_INSTALL: true
+      FOODCOOP_NAME: example
+      FOODCOOP_CITY: XXX
+      FOODCOOP_COUNTRY: XXX
+      FOODCOOP_EMAIL: info@example.org
+      FOODCOOP_PHONE: XXX
+      FOODCOOP_STREET: XXX
+      FOODCOOP_ZIP_CODE: XXX
+      FOODCOOP_HOMEPAGE: https://order.example.org
+      FOODCOOP_HELP_URL: https://order.example.org
+      FOODCOOP_TIME_ZONE: Berlin
+      FOODCOOP_USE_NICK: true
+      FOODCOOP_LANGUAGE: de
+      FOODCOOP_FOOTER: '<a href="https://example.org/">example</a> hosted by <a href="https://yourhoster.org">Your Tech Co-op</a>.'
+      USE_APPLE_POINTS: false
+      STOP_ORDERING_UNDER: 75
+      MINIMUM_BALANCE: 0
+      MYSQL_DB: foodsoft
+      MYSQL_HOST: db
+      MYSQL_PORT: 3306
+      MYSQL_USER: foodsoft
+      EMAIL_SENDER: noreply@example.org
+      EMAIL_ERROR: systems@example.org
+      SMTP_ADDRESS: mail.example.com
+      SMTP_AUTHENTICATION: plain
+      SMTP_DOMAIN: mail.example.com
+      SMTP_ENABLE_STARTTLS_AUTO: true
+      SMTP_PORT: 587
+      SMTP_USER_NAME: foodsoft
+      EMAIL_REPLY_DOMAIN: example.org
+      SMTP_SERVER_HOST: 0.0.0.0
+      SMTP_SERVER_PORT: 2525
+      SECRET_DB_PASSWORD_VERSION: v1
+      SECRET_DB_ROOT_PASSWORD_VERSION: v1
+      SECRET_SHARED_LISTS_DB_PASSWORD_VERSION: v1
+      SECRET_SMTP_PASSWORD_VERSION: v1
+      SECRET_SECRET_KEY_BASE_VERSION: v1
+      APP_CONFIG_VERSION: v1
+      DB_CONFIG_VERSION: v1
+      ENTRYPOINT_VERSION: v1
+      PRODUCTION_ENV_VERSION: v1
+trigger:
+  branch:
+  - demo

config/environments/production.rb

@@ -29,7 +29,7 @@ Rails.application.configure do
   config.public_file_server.enabled = ENV['RAILS_SERVE_STATIC_FILES'].present?
 
   # Compress JavaScripts and CSS.
-  config.assets.js_compressor = :uglifier
+  config.assets.js_compressor = Uglifier.new(harmony: true)
   config.assets.css_compressor = :sass
 
   # Do not fallback to assets pipeline if a precompiled asset is missed.

deployment/.env.sample

@@ -0,0 +1,65 @@
+TYPE=foodsoft
+
+DOMAIN=order.example.org
+#EXTRA_DOMAINS=', `www.order.example.com`'
+LETS_ENCRYPT_ENV=production
+COMPOSE_FILE="compose.yml"
+
+# app settings
+FOODCOOP_MULTI_INSTALL=true  # Best for now, see https://github.com/foodcoops/foodsoft/pull/841
+FOODCOOP_NAME=example
+FOODCOOP_CITY=XXX
+FOODCOOP_COUNTRY=XXX
+FOODCOOP_EMAIL=info@example.org
+FOODCOOP_PHONE=XXX
+FOODCOOP_STREET=XXX
+FOODCOOP_ZIP_CODE=XXX
+FOODCOOP_HOMEPAGE=https://order.example.org
+FOODCOOP_HELP_URL=https://order.example.org
+FOODCOOP_TIME_ZONE=Amsterdam
+FOODCOOP_USE_NICK=true
+FOODCOOP_LANGUAGE=en
+FOODCOOP_FOOTER='<a href="https://example.org/">example</a> hosted by <a href="https://yourhoster.org">Your Tech Co-op</a>.'
+USE_APPLE_POINTS=false
+STOP_ORDERING_UNDER=75
+MINIMUM_BALANCE=0
+
+# database settings
+MYSQL_DB=foodsoft
+MYSQL_HOST=db
+MYSQL_PORT=3306
+MYSQL_USER=foodsoft
+
+# shared supplier list settings
+# COMPOSE_FILE="$COMPOSE_FILE:compose.sharedlists.yml"
+# ENABLE_SHARED_LISTS=0
+# SHARED_LISTS_DB_TYPE=mysql2
+# SHARED_LISTS_HOST=order.otherfoodcoop.org
+# SHARED_LISTS_DB_NAME=sharedlists
+# SHARED_LISTS_USER=example
+
+# Group order invoices generation pull request 
+# https://github.com/foodcoops/foodsoft/pull/907
+# COMPOSE_FILE="$COMPOSE_FILE:compose.groupOrderInvoice.yml"
+
+# outgoing mail settings
+EMAIL_SENDER=noreply@example.org
+EMAIL_ERROR=systems@example.org
+SMTP_ADDRESS=mail.example.com
+SMTP_AUTHENTICATION=plain
+SMTP_DOMAIN=mail.example.com
+SMTP_ENABLE_STARTTLS_AUTO=true
+SMTP_PORT=587
+SMTP_USER_NAME=foodsoft
+
+# incoming mail settings
+EMAIL_REPLY_DOMAIN=example.org
+SMTP_SERVER_HOST=0.0.0.0
+SMTP_SERVER_PORT=2525
+
+# secret versions
+SECRET_DB_PASSWORD_VERSION=v1
+SECRET_DB_ROOT_PASSWORD_VERSION=v1
+SECRET_SHARED_LISTS_DB_PASSWORD_VERSION=v1
+SECRET_SMTP_PASSWORD_VERSION=v1
+SECRET_SECRET_KEY_BASE_VERSION=v1 # length=30

deployment/app_config.yml.tmpl

@@ -0,0 +1,168 @@
+# {{ env "DOMAIN" }} configuration
+
+default: &defaults
+  # If you wanna serve more than one foodcoop with one installation
+  # Don't forget to setup databases for each foodcoop. See also MULTI_COOP_INSTALL
+  multi_coop_install: {{ env "FOODCOOP_MULTI_INSTALL" }}
+
+  # If multi_coop_install you have to use a coop name, which you you wanna be selected by default
+  default_scope: "{{ env "FOODCOOP_NAME" }}"
+
+  # name of this foodcoop
+  name: "{{ env "FOODCOOP_NAME" }}"
+
+  # foodcoop contact information (used for FAX messages)
+  contact:
+    street: "{{ env "FOODCOOP_STREET" }}"
+    zip_code: "{{ env "FOODCOOP_ZIP_CODE" }}"
+    city: "{{ env "FOODCOOP_CITY" }}"
+    country: "{{ env "FOODCOOP_COUNTRY" }}"
+    email: "{{ env "FOODCOOP_EMAIL" }}"
+    phone: "{{ env "FOODCOOP_PHONE" }}"
+
+  # Homepage
+  homepage: "{{ env "FOODCOOP_HOMEPAGE" }}"
+
+  # foodsoft documentation URL
+  help_url: "{{ env "FOODCOOP_HELP_URL" }}"
+
+  # documentation URL for the apples&pears work system
+  applepear_url: https://github.com/foodcoops/foodsoft/wiki/%C3%84pfel-u.-Birnen
+
+  # custom foodsoft software URL (used in footer)
+  foodsoft_url: https://foodcoops.github.io
+
+  # Default language
+  default_locale: {{ env "FOODCOOP_LANGUAGE" }}
+
+  # By default, foodsoft takes the language from the webbrowser/operating system.
+  # In case you really want foodsoft in a certain language by default, set this to true.
+  # When members are logged in, the language from their profile settings is still used.
+  ignore_browser_locale: false
+
+  # Default timezone, e.g. UTC, Amsterdam, Berlin, etc.
+  time_zone: "{{ env "FOODCOOP_TIME_ZONE" }}"
+
+  # Currency symbol, and whether to add a whitespace after the unit.
+  currency_unit: €
+  #currency_space: true
+
+  # price markup in percent
+  price_markup: 2.0
+
+  # default vat percentage for new articles
+  tax_default: 7.0
+
+  # tolerance order option: If set to false, article tolerance values do not count
+  # for total article price as long as the order is not finished.
+  tolerance_is_costly: false
+
+  # Ordergroups, which have less than 75 apples should not be allowed to make new orders
+  # Comment out this option to activate this restriction
+  stop_ordering_under: {{ env "STOP_ORDERING_UNDER" }}
+
+  # Comment out to completely hide apple points (be sure to comment stop_ordering_under)
+  use_apple_points: {{ env "USE_APPLE_POINTS" }}
+
+  # ordergroups can only order when their balance is higher than or equal to this
+  # not fully enforced right now, since the check is only client-side
+  minimum_balance: {{ env "MINIMUM_BALANCE" }}
+
+  # how many days there are between two periodic tasks
+  #tasks_period_days: 7
+
+  # how many days upfront periodic tasks are created
+  #tasks_upfront_days: 49
+
+  # default order schedule, used to provide initial dates for new orders
+  # (recurring dates in ical format; no spaces!)
+  #order_schedule:
+  #  ends:
+  #    recurr: FREQ=WEEKLY;INTERVAL=2;BYDAY=MO
+  #    time: '9:00'
+  #  # reference point, this is generally the first pickup day; empty is often ok
+  #  #initial:
+
+  # When use_nick is enabled, there will be a nickname field in the user form,
+  # and the option to show a nickname instead of full name to foodcoop members.
+  # Members of a user's groups and administrators can still see full names.
+  use_nick: {{ env "FOODCOOP_USE_NICK" }}
+
+  # Most plugins can be enabled/disabled here as well. Messages and wiki are enabled
+  # by default and need to be set to false to disable. Most other plugins needs to
+  # be enabled before they do anything.
+  use_wiki: true
+  use_messages: true
+  use_documents: true
+  use_polls: true
+
+  # Base font size for generated PDF documents
+  #pdf_font_size: 12
+
+  # Page size for generated PDF documents
+  #pdf_page_size: A4
+
+  # Some documents (like group and article PDFs) can include page breaks
+  # after each sublist.
+  #pdf_add_page_breaks: true
+
+  # Alternatively, this can be set for each document.
+  #pdf_add_page_breaks:
+  #  order_by_groups: true
+  #  order_by_articles: true
+
+  # Page footer (html allowed). Default is a Foodsoft footer. Set to `blank` for no footer.
+  page_footer: {{ env "FOODCOOP_FOOTER" }}
+
+  # Custom CSS for the foodcoop
+  #custom_css: 'body { background-color: #fcffba; }'
+
+  # Uncomment to add tracking code for web statistics, e.g. for Piwik. (Added to bottom of page)
+  #webstats_tracking_code: |
+  #  <!-- Piwik -->
+  #  ......
+
+  # email address to be used as sender
+  email_sender: "{{ env "EMAIL_SENDER" }}"
+
+  # email address to be used as from
+  email_from: "{{ env "EMAIL_SENDER" }}"
+
+  # domain to be used for reply emails
+  reply_email_domain: {{ env "EMAIL_REPLY_DOMAIN" }}
+
+  # If your foodcoop uses a mailing list instead of internal messaging system
+  #mailing_list: list@example.org
+  #mailing_list_subscribe: list-subscribe@example.org
+
+  # Config for the exception_notification plugin
+  notification:
+    error_recipients:
+      - "{{ env "EMAIL_ERROR" }}"
+    sender_address: "\"Foodsoft error\" <{{ env "EMAIL_SENDER" }}>"
+    email_prefix: "[foodsoft] "
+
+  # http config for this host to generate links in emails (uses environment config when not set)
+  protocol: https
+  host: "{{ env "DOMAIN" }}"
+  #port: 3000
+
+  {{ if eq (env "ENABLE_SHARED_LISTS") "1" }}
+  # Access to sharedlists, the external article-database.
+  # This allows a foodcoop to subscribe to a selection of a supplier's full assortment,
+  # and makes it possible to share data with several foodcoops. Using this requires installing
+  # an additional application with a separate database.
+  shared_lists:
+    adapter: "{{ env "SHARED_LISTS_DB_TYPE" }}"
+    host: "{{ env "SHARED_LISTS_HOST" }}"
+    database: "{{ env "SHARED_LISTS_DB_NAME" }}"
+    username: "{{ env "SHARED_LISTS_USER" }}"
+    password: "{{ secret "shared_lists_db_password" }}"
+  {{ end }}
+
+# don't remove this, required to run the app
+production:
+  <<: *defaults
+
+{{ env "FOODCOOP_NAME" }}:
+  <<: *defaults

deployment/compose.yml

@@ -0,0 +1,189 @@
+---
+version: "3.8"
+
+x-env: &env
+  CERTBOT_DISABLED: 1
+  DOMAIN:
+  EMAIL_ERROR:
+  EMAIL_REPLY_DOMAIN:
+  EMAIL_SENDER:
+  FOODCOOP_CITY:
+  FOODCOOP_COUNTRY:
+  FOODCOOP_EMAIL:
+  FOODCOOP_FOOTER:
+  FOODCOOP_HELP_URL:
+  FOODCOOP_HOMEPAGE:
+  FOODCOOP_MULTI_INSTALL:
+  FOODCOOP_NAME:
+  FOODCOOP_PHONE:
+  FOODCOOP_STREET:
+  FOODCOOP_TIME_ZONE:
+  FOODCOOP_ZIP_CODE:
+  FOODCOOP_USE_NICK:
+  FOODCOOP_LANGUAGE:
+  LOG_LEVEL:
+  MINIMUM_BALANCE:
+  MYSQL_DB:
+  MYSQL_HOST:
+  MYSQL_PORT:
+  MYSQL_USER:
+  QUEUE: foodsoft_notifier
+  REDIS_URL: redis://cache:6379
+  SECRET_KEY_BASE_FILE: /run/secrets/secret_key_base
+  SMTP_ADDRESS:
+  SMTP_AUTHENTICATION:
+  SMTP_DOMAIN:
+  SMTP_ENABLE_STARTTLS_AUTO:
+  SMTP_PASSWORD_FILE: /run/secrets/smtp_password
+  SMTP_PORT:
+  SMTP_USER_NAME:
+  STOP_ORDERING_UNDER:
+  USE_APPLE_POINTS:
+
+x-configs: &configs
+  - source: app_config
+    target: /usr/src/app/config/app_config.yml
+  - source: db_config
+    target: /usr/src/app/config/database.yml
+  - source: entrypoint
+    target: /usr/src/app/docker-entrypoint.sh
+    mode: 0555
+
+x-secrets: &secrets
+  - db_password
+  - secret_key_base
+  - smtp_password
+
+services:
+  app:
+    image: ${IMAGE}
+    networks:
+      - internal
+      - proxy
+    secrets: *secrets
+    configs: *configs
+    entrypoint: &entrypoint /usr/src/app/docker-entrypoint.sh
+    environment:
+      <<: *env
+      FOODSOFT_SERVICE: app
+    healthcheck:
+      test: ["CMD", "curl", "-f", "http://localhost:3000"]
+      interval: 15s
+      timeout: 10s
+      retries: 10
+      start_period: 1m
+    deploy:
+      update_config:
+        failure_action: rollback
+        order: start-first
+      labels:
+        - "traefik.enable=true"
+        - "traefik.http.routers.${STACK_NAME}.rule=Host(`${DOMAIN}`${EXTRA_DOMAINS})"
+        - "traefik.http.routers.${STACK_NAME}.entrypoints=web-secure"
+        - "traefik.http.routers.${STACK_NAME}.tls.certresolver=${LETS_ENCRYPT_ENV}"
+        - "traefik.http.services.${STACK_NAME}.loadbalancer.server.port=3000"
+        - "coop-cloud.${STACK_NAME}.version=1.0.0+4.7.1"
+
+  cron:
+    image: ${IMAGE}
+    secrets: *secrets
+    configs: *configs
+    entrypoint: *entrypoint
+    environment:
+      <<: *env
+      FOODSOFT_SERVICE: cron
+    networks:
+      - internal
+
+  worker:
+    image: ${IMAGE}
+    secrets: *secrets
+    configs: *configs
+    entrypoint: *entrypoint
+    environment:
+      <<: *env
+      FOODSOFT_SERVICE: worker
+    networks:
+      - internal
+
+  smtp:
+    image: ${IMAGE}
+    configs: *configs
+    entrypoint: *entrypoint
+    secrets: *secrets
+    environment:
+      <<: *env
+      FOODSOFT_SERVICE: smtp
+      SMTP_SERVER_HOST:
+      SMTP_SERVER_PORT:
+    networks:
+      - proxy
+      - internal
+    deploy:
+      labels:
+        - "traefik.enable=true"
+        - "traefik.tcp.routers.foodsoft-smtp.rule=HostSNI(`*`)"
+        - "traefik.tcp.routers.foodsoft-smtp.entrypoints=foodsoft-smtp"
+        - "traefik.tcp.services.foodsoft-smtp.loadbalancer.server.port=${SMTP_SERVER_PORT}"
+
+  db:
+    image: "mariadb:10.6"
+    command: "mysqld --character-set-server=utf8mb4 --collation-server=utf8mb4_unicode_520_ci"
+    environment:
+      MYSQL_USER: ${MYSQL_USER}
+      MYSQL_DATABASE: ${MYSQL_DB}
+      MYSQL_PASSWORD_FILE: /run/secrets/db_password
+      MYSQL_ROOT_PASSWORD_FILE: /run/secrets/db_root_password
+    secrets:
+      - db_password
+      - db_root_password
+    volumes:
+      - "db:/var/lib/mysql"
+    networks:
+      - internal
+    deploy:
+      labels:
+          backupbot.backup: "true"
+          backupbot.backup.pre-hook: 'mkdir -p /tmp/backup/ && mysqldump --single-transaction -u root -p"$$(cat /run/secrets/db_root_password)" $${MYSQL_DATABASE} > /tmp/backup/backup.sql'
+          backupbot.backup.post-hook: "rm -rf /tmp/backup"
+          backupbot.backup.path: "/tmp/backup/"
+  cache:
+    image: "redis:6"
+    networks:
+      - internal
+
+networks:
+  internal:
+  proxy:
+    external: true
+
+volumes:
+  db:
+
+configs:
+  app_config:
+    name: ${STACK_NAME}_app_config_${APP_CONFIG_VERSION}
+    file: app_config.yml.tmpl
+    template_driver: golang
+  db_config:
+    name: ${STACK_NAME}_db_config_${DB_CONFIG_VERSION}
+    file: database.yml.tmpl
+    template_driver: golang
+  entrypoint:
+    name: ${STACK_NAME}_entrypoint_${ENTRYPOINT_VERSION}
+    file: entrypoint.sh.tmpl
+    template_driver: golang
+
+secrets:
+  db_password:
+    name: ${STACK_NAME}_db_password_${SECRET_DB_PASSWORD_VERSION}
+    external: true
+  db_root_password:
+    name: ${STACK_NAME}_db_root_password_${SECRET_DB_ROOT_PASSWORD_VERSION}
+    external: true
+  smtp_password:
+    name: ${STACK_NAME}_smtp_password_${SECRET_SMTP_PASSWORD_VERSION}
+    external: true
+  secret_key_base:
+    name: ${STACK_NAME}_secret_key_base_${SECRET_SECRET_KEY_BASE_VERSION}
+    external: true

deployment/database.yml.tmpl

@@ -0,0 +1,9 @@
+production:
+  adapter: "mysql2"
+  encoding: "utf8mb4"
+  collation: "utf8mb4_unicode_520_ci"
+  username: "{{ env "MYSQL_USER" }}"
+  password: "{{ secret "db_password" }}"
+  database: "{{ env "MYSQL_DB" }}"
+  host: "{{ env "MYSQL_HOST" }}"
+  port: "{{ env "MYSQL_PORT" }}"

deployment/entrypoint.sh.tmpl

@@ -0,0 +1,44 @@
+#!/bin/bash
+
+set -eu
+
+file_env() {
+  local var="$1"
+  local fileVar="${var}_FILE"
+  local def="${2:-}"
+
+  if [ "${!var:-}" ] && [ "${!fileVar:-}" ]; then
+    echo >&2 "error: both $var and $fileVar are set (but are exclusive)"
+    exit 1
+  fi
+
+  local val="$def"
+
+  if [ "${!var:-}" ]; then
+    val="${!var}"
+  elif [ "${!fileVar:-}" ]; then
+    val="$(< "${!fileVar}")"
+  fi
+
+  export "$var"="$val"
+  unset "$fileVar"
+}
+
+file_env "SECRET_KEY_BASE"
+file_env "SMTP_PASSWORD"
+
+echo "------------------------------------------------------------------------------"
+echo "Running entrypoint commands against '$FOODSOFT_SERVICE' service"
+echo "------------------------------------------------------------------------------"
+
+if [ "$FOODSOFT_SERVICE" == "app" ]; then
+  bundle exec rake db:setup || true
+  bundle exec rake db:migrate || true
+  ./proc-start web
+elif [ "$FOODSOFT_SERVICE" == "cron" ]; then
+  ./proc-start cron
+elif [ "$FOODSOFT_SERVICE" == "worker" ]; then
+  ./proc-start worker
+elif [ "$FOODSOFT_SERVICE" == "smtp" ]; then
+  ./proc-start mail
+fi