Dockerでデータベースの作成ができない

Question

Docker初心者です

docker-compose run web bundle exec rake db:create
するとこのようにエラーが出ます

ERROR: pull access denied for mysql2, repository does not exist or may require 'docker login': denied: requested access to the resource is denied

docker login
は成功するのに何故か作れません。

リポジトリも作成しているのになぜでしょうか

user@fukusyun-2 Books % docker-compose run web bundle exec rake db:create
Pulling db (mysql2:0.4.4)...
ERROR: pull access denied for mysql2, repository does not exist or may require 'docker login': denied: requested access to the resource is denied

user@fukusyun-2 Books %  docker login
Authenticating with existing credentials...
Login Succeeded

user@fukusyun-2 Books % docker search registry
NAME                                 DESCRIPTION                                     STARS               OFFICIAL            AUTOMATED
registry                             The Docker Registry 2.0 implementation for s…   3066                [OK]                
distribution/registry                WARNING: NOT the registry official image!!! …   57                                      [OK]
stefanscherer/registry-windows       Containerized docker registry for Windows Se…   32                                      
budry/registry-arm                   Docker registry build for Raspberry PI 2 and…   18                                      
deis/registry                        Docker image registry for the Deis open sour…   12                                      
jc21/registry-ui                     A nice web interface for managing your Docke…   12                                      
anoxis/registry-cli                  You can list and delete tags from your priva…   10                                      [OK]
allingeek/registry                   A specialization of registry:2 configured fo…   4                                       [OK]
pallet/registry-swift                Add swift storage support to the official do…   4                                       [OK]
arm32v6/registry                     The Docker Registry 2.0 implementation for s…   3                                       
goharbor/registry-photon                                                             2                                       
webhippie/registry                   Docker images for Registry                      1                                       [OK]
conjurinc/registry-oauth-server      Docker registry authn/authz server backed by…   1                                       
ibmcom/registry                      Docker Image for IBM Cloud private-CE (Commu…   1                                       
concourse/registry-image-resource                                                    1                                       
metadata/registry                    Metadata Registry is a tool which helps you …   1                                       [OK]
upmcenterprises/registry-creds                                                       0                                       
kontena/registry                     Kontena Registry                                0                                       
dwpdigital/registry-image-resource   Concourse resource type                         0                                       
gisjedi/registry-proxy               Reverse proxy of registry mirror image gisje…   0                                       
lorieri/registry-ceph                Ceph Rados Gateway (and any other S3 compati…   0                                       
convox/registry                                                                      0                                       
digillect/registry-cleaner           Tool to remove unused images from Docker reg…   0                                       [OK]
pivnet/registry-gcloud-image                                                         0                                       
deepsecurity/registryviews           Deep Security Smart Check                       0    

webpacker.yml
# Note: You must restart bin/webpack-dev-server for changes to take effect

default: &default
  source_path: app/javascript
  source_entry_path: packs
  public_root_path: public
  public_output_path: packs
  cache_path: tmp/cache/webpacker
  check_yarn_integrity: false  ここでエラー
  webpack_compile_output: true

  # Additional paths webpack should lookup modules
  # ['app/assets', 'engine/foo/app/assets']
  resolved_paths: []

  # Reload manifest.json on all requests so we reload latest compiled packs
  cache_manifest: false

  # Extract and emit a css file
  extract_css: false

  static_assets_extensions:
    - .jpg
    - .jpeg
    - .png
    - .gif
    - .tiff
    - .ico
    - .svg
    - .eot
    - .otf
    - .ttf
    - .woff
    - .woff2

  extensions:
    - .mjs
    - .js
    - .sass
    - .scss
    - .css
    - .module.sass
    - .module.scss
    - .module.css
    - .png
    - .svg
    - .gif
    - .jpeg
    - .jpg

development:
  <<: *default
  compile: true

  # Verifies that correct packages and versions are installed by inspecting package.json, yarn.lock, and node_modules
  check_yarn_integrity: true

  # Reference: https://webpack.js.org/configuration/dev-server/
  dev_server:
    https: false
    host: localhost
    port: 3035
    public: localhost:3035
    hmr: false
    # Inline should be set to true if using HMR
    inline: true
    overlay: true
    compress: true
    disable_host_check: true
    use_local_ip: false
    quiet: false
    pretty: false
    headers:
      'Access-Control-Allow-Origin': '*'
    watch_options:
      ignored: '**/node_modules/**'


test:
  <<: *default
  compile: true

  # Compile test packs to a separate directory
  public_output_path: packs-test

production:
  <<: *default

  # Production depends on precompilation of packs prior to booting for performance.
  compile: false

  # Extract and emit a css file
  extract_css: true

  # Cache manifest.json for performance
  cache_manifest: true

web_1  | => Booting Puma
web_1  | => Rails 6.0.3.2 application starting in development 
web_1  | => Run `rails server --help` for more startup options
web_1  | sh: 1: yarn: not found
web_1  | 
web_1  | 
web_1  | ========================================
web_1  |   Your Yarn packages are out of date!
web_1  |   Please run `yarn install --check-files` to update.
web_1  | ========================================
web_1  | 
web_1  | 
web_1  | To disable this check, please change `check_yarn_integrity`
web_1  | to `false` in your webpacker config file (config/webpacker.yml).
web_1  | 
web_1  | 
web_1  | 
web_1  | 
web_1  | 
web_1  | Exiting
books_web_1 exited with code 1

Answer 1

docker-compose.yml で次のように定義していませんか？

services:
  db:
    image: mysql2:0.4.4

もし上記のように定義している場合、
Docker Hub には mysql2 というイメージは公開されていません

もし、MySQL のコンテナーを起動したいのであれば、
例えば次のように記述します:

services:
  db:
    command: --default-authentication-plugin=mysql_native_password
    restart: always
    environment:
      MYSQL_ROOT_PASSWORD: example
    image: mysql

参考: mysql - Docker Hub

詳しい mysql イメージの使い方は、上記参考の公式の解説を参照します

Comments

[tomsuma]

ご回答ありがとうございます
また違うエラーに悩んでいます
docker-compose up
をするとどうしてもエラーが起きてしまいます

[tomsuma]

yarn upgradeもしてます

[y_shinoda]

内容が完全に別の問題なので、新たに質問を投稿お願いします

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[tomsuma]

そうなんですね
使い始めて一ヶ月立っていないのでよくわかっていませんでした。、、
ありがとうございます。