docker.errors.DockerException: Error while fetching server API version

######質問した経緯

AWSにて作成/デプロイしたアプリをDockerを用いて環境構築の作成を行っているのですが、
「Dockerfile」「dockercompose」「database.yml」「nginx.conf」を作成した後、
イメージをビルドしようと思い

docker-compose build

を実行すると

docker.errors.DockerException: Error while fetching server API version: ('Connection aborted.', PermissionError(13, 'Permission denied'))
[16526] Failed to execute script docker-compose

とのエラーが発生しました。

作成した「Dockerfile」「dockercompose.yml」「database.yml」「nginx.conf」は下記の通りになります。(FunToDrawはアプリ名になります)

Dockerfile
1FROM ruby:2.6.2
2
3RUN apt-get update -qq && \
4    apt-get install -y build-essential \
5                       libpq-dev \
6                       nodejs \
7                       vim
8
9RUN mkdir /FunToDraw
10
11WORKDIR /FunToDraw
12
13ADD Gemfile /FunToDraw/Gemfile
14ADD Gemfile.lock /FunToDraw/Gemfile.lock
15
16RUN gem install bundler
17RUN bundle install
18
19ADD . /FunToDraw
20
21RUN mkdir -p tmp/sockets
22RUN mkdir -p tmp/pids
23

dockercomposeyml
1version: '3'
2services:
3  # db:
4    # image: mysql:5.7
5    # environment:
6      # MYSQL_ROOT_PASSWORD: password
7      # MYSQL_USER: user
8      # MYSQL_PASSWORD: 1234
9      # MYSQL_DATABASE: FunToDraw_db
10    # volumes:
11      # - mysql-data:/var/lib/mysql
12    # ports:
13      # - "4306:3306"
14
15  app:
16    build: .
17    command: bundle exec puma -C config/puma.rb -e production
18    volumes:
19      - .:/FunToDraw
20      - public-data:/FunToDraw/public
21      - tmp-data:/FunToDraw/tmp
22      - log-data:/FunToDraw/log
23
24  web:
25    build:
26      context: containers/nginx
27    volumes:
28      - public-data:/FunToDraw/public
29      - tmp-data:/FunToDraw/tmp
30    ports:
31      - 80:80
32
33volumes:
34  # mysql-data:
35  public-data:
36  tmp-data:
37  log-data:

databaseyml
1# SQLite version 3.x
2#   gem install sqlite3
3#
4#   Ensure the SQLite 3 gem is defined in your Gemfile
5#   gem 'sqlite3'
6#
7default: &default
8  adapter: mysql2
9  encoding: utf8
10  pool: <%= ENV.fetch("RAILS_MAX_THREADS") { 5 } %>
11  username: <%= ENV.fetch('MYSQL_USER') { 'root' } %>
12  password: <%= ENV.fetch('MYSQL_PASSWORD') { 'password' } %>
13  host: db
14
15development:
16  <<: *default
17  database: myapp_development
18
19test:
20  <<: *default
21  database: myapp_test
22
23production:
24  <<: *default
25  database: <%= ENV['DB_DATABASE'] %>
26  adapter: mysql2
27  encoding: utf8mb4
28  charset: utf8mb4
29  collation: utf8mb4_general_ci
30  host: <%= ENV['DB_HOST'] %>
31  username: <%= ENV['DB_USERNAME'] %>
32  password: <%= ENV['DB_PASSWORD'] %>

eginxconf
1upstream myapp {
2  server unix:///FunToDraw/tmp/sockets/puma.sock;
3}
4
5server {
6  listen 80;
7  server_name localhost;
8
9  access_log /var/log/nginx/access.log;
10  error_log  /var/log/nginx/error.log;
11
12  root /FunToDraw/public;
13
14  client_max_body_size 100m;
15  error_page 404             /404.html;
16  error_page 505 502 503 504 /500.html;
17  try_files  $uri/index.html $uri @FunToDraw;
18  keepalive_timeout 5;
19
20  location @FunToDraw {
21    proxy_set_header X-Real-IP $remote_addr;
22    proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
23    proxy_set_header Host $http_host;
24    proxy_pass http://myFunToDraw;
25  }
26}
27