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  Platform.sh DevRel

  February 19, 2021 10:56

  Your application is trying to write on a read-only filesystem.
  The filesystem is writable only during the build hook. Everything happening after that point will be limited to read-only.
  If you need to be able to perform post build hook write operations, you will have to use mounts.
  You can find more information about this in the storage section of our documentation.

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• 

  vakaramoko kamate

  February 19, 2021 11:09

  To tell the truth, I’m a beginner, so I only have the default configuration proposed.
  my .platform.app.yaml

  name: app
  
  # The runtime the application uses. The 'type' key defines the base container
  # image that will be used to run the application. There is a separate base
  # container image for each primary language for the application,
  # in multiple versions. Check the Ruby documentation
  # (https://docs.platform.sh/languages/ruby.html#supported-versions)
  # to find the supported versions for the 'ruby' type.
  type: 'ruby:2.7'
  
  # The relationships of the application with services or other applications.
  #
  # The left-hand side is the name of the relationship as it will be exposed
  # to the application in the PLATFORM_RELATIONSHIPS variable. The right-hand
  # side is in the form <service name>:<endpoint name>.
  relationships:
      postgresdatabase: 'dbpostgres:postgresql'
  
  # The size of the persistent disk of the application (in MB).
  disk: 1024
  
  hooks:
      build: |
        gem install bundler:2.2.8
        bundle install --without development test
      deploy: |
        RACK_ENV=production 
        bundle exec rake db:migrate
  
  # The following block defines a single writable directory, 'web/uploads'
  # The 'source' specifies where the writable mount is. The 'local' source
  # indicates that the mount point will point to a local directory on the
  # application container. The 'source_path' specifies the subdirectory
  # from within the source that the mount should point at. 
  mounts:
    'web/uploads':
      source: local
      source_path: uploads
  
  web:
    upstream: 
      socket_family: "unix"
    commands: 
      start: "\"unicorn -l $SOCKET -E production config.ru\""
    locations: 
      '/': 
        root: "\"public\""
        passthru: true
        expires: "1h"
        allow: true
  

  0
• 

  Platform.sh DevRel

  February 19, 2021 13:31

  You are missing /tmp in your mounts:

      tmp:
          source: local
          source_path: tmp
  

  This makes the /tmp directory writable.
  To get a better understanding of how to configure your application, you can take a look at our ruby documentation page
  Especially step 5, where mounts are setup.

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• 

  vakaramoko kamate

  February 19, 2021 17:39

  thank you for your interest…
  but after incorporating your recommendation,
  I have always errors with APP, but I see Something interest on the connection to the database.

  look at the build log:

      W: /app/.global/gems/bundler-2.2.8/lib/bundler/cli.rb:494:in `exec'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/vendor/thor/lib/thor.rb:392:in `dispatch'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/cli.rb:30:in `dispatch'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/vendor/thor/lib/thor/base.rb:485:in `start'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/cli.rb:24:in `start'
      W: /app/.global/gems/bundler-2.2.8/exe/bundle:49:in `block in <top (required)>'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/friendly_errors.rb:130:in `with_friendly_errors'
      W: /app/.global/gems/bundler-2.2.8/exe/bundle:37:in `<top (required)>'
      W: /app/.global/bin/bundle:23:in `load'
      W: /app/.global/bin/bundle:23:in `<main>'
      W: 
      W: Caused by:
      W: PG::ConnectionBad: could not connect to server: Connection refused
      W: 	Is the server running on host "localhost" (127.0.0.1) and accepting
      W: 	TCP/IP connections on port 5432?
      W: /app/.global/gems/pg-1.2.3/lib/pg.rb:58:in `initialize'
      W: /app/.global/gems/pg-1.2.3/lib/pg.rb:58:in `new'
      W: /app/.global/gems/pg-1.2.3/lib/pg.rb:58:in `connect'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/postgresql_adapter.rb:46:in `postgresql_connection'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:887:in `new_connection'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:931:in `checkout_new_connection'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:910:in `try_to_checkout_new_connection'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:871:in `acquire_connection'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:593:in `checkout'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:437:in `connection'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_adapters/abstract/connection_pool.rb:1119:in `retrieve_connection'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_handling.rb:221:in `retrieve_connection'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/connection_handling.rb:189:in `connection'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/tasks/database_tasks.rb:238:in `migrate'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/railties/databases.rake:86:in `block (3 levels) in <main>'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/railties/databases.rake:84:in `each'
      W: /app/.global/gems/activerecord-6.0.3.4/lib/active_record/railties/databases.rake:84:in `block (2 levels) in <main>'
      W: /app/.global/gems/rake-13.0.3/exe/rake:27:in `<top (required)>'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/cli/exec.rb:63:in `load'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/cli/exec.rb:63:in `kernel_load'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/cli/exec.rb:28:in `run'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/cli.rb:494:in `exec'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/vendor/thor/lib/thor/command.rb:27:in `run'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/vendor/thor/lib/thor/invocation.rb:127:in `invoke_command'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/vendor/thor/lib/thor.rb:392:in `dispatch'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/cli.rb:30:in `dispatch'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/vendor/thor/lib/thor/base.rb:485:in `start'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/cli.rb:24:in `start'
      W: /app/.global/gems/bundler-2.2.8/exe/bundle:49:in `block in <top (required)>'
      W: /app/.global/gems/bundler-2.2.8/lib/bundler/friendly_errors.rb:130:in `with_friendly_errors'
      W: /app/.global/gems/bundler-2.2.8/exe/bundle:37:in `<top (required)>'
      W: /app/.global/bin/bundle:23:in `load'
      W: /app/.global/bin/bundle:23:in `<main>'
      W: Tasks: TOP => db:migrate
      W: (See full trace by running task with --trace)
  
    Opening environment
    Environment configuration
      app (type: ruby:2.7, size: M, disk: 1024)
      dbpostgres (type: postgresql:13, size: M, disk: 9216)
  

  my configuration of DATABASE.YML parameters in config:
  config/database.yml

  
  production:
    adapter: postgresql
    encoding: unicode
    host: localhost
    port: 5432
    pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
    url: <%= ENV['DATABASE_URL'] %>
    database: <%= ENV['DATABASE_NAME'] %>
    username: <%= ENV['DATABASE_USERNAME'] %>
    password: <%= ENV['DATABASE_PASSWORD'] %>
  
  

  the variables defined in credentials.yml.enc

  
  production:
    database_url: postgresdatabase.internal
    database_name: production
    database_username: main
    database_password: main
  

  my .platform/services.yaml

  # The name given to the PostgreSQL service (lowercase alphanumeric only).
  dbpostgres:
      # The type of your service (postgresql), which uses the format
      # 'type:version'. Be sure to consult the PostgreSQL documentation
      # (https://docs.platform.sh/configuration/services/postgresql.html#supported-versions)
      # when choosing a version. If you specify a version number which is not available,
      # the CLI will return an error.
      type: postgresql:13
       # The disk attribute is the size of the persistent disk (in MB) allocated to the service.
      disk: 9216
      configuration:
        extensions:
          - plpgsql
          - pgcrypto
          - uuid-ossp
  

  if can you help to understand it.

  0

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