Try to fix mysql for github actions

.github/workflows/tests.yml

@@ -33,13 +33,12 @@ jobs:
           --health-retries 5
 
       mysql:
-        image: mysql:5.7
+        image: mysql:8.0
         env:
-          MYSQL_USER: root
-          MYSQL_PASSWORD: ''
-          MYSQL_ALLOW_EMPTY_PASSWORD: yes
+          MYSQL_ROOT_PASSWORD: 'BestPasswordEver'
         ports:
-          - 3306:3306
+          # will assign a random free host port
+          - 3306/tcp
         options: >-
           --health-cmd="mysqladmin ping"
           --health-interval=10s
@@ -49,7 +48,7 @@ jobs:
     steps:
       - name: Verify MySQL connection from host
         run: |
-          mysql --host 127.0.0.1 --port 3306 -uroot -e "SHOW DATABASES"
+          mysql --host 127.0.0.1 --port ${{ job.services.mysql.ports[3306] }} -uroot -pBestPasswordEver -e "SHOW DATABASES"
         if: matrix.db == 'mysql'
 
       - name: Checkout Redmine
@@ -99,6 +98,7 @@ jobs:
       - name: Run Redmine rake tasks
         env:
           RAILS_ENV: test
+          MYSQL_PORT: ${{ job.services.mysql.ports[3306] }}
         working-directory: redmine
         run: |
           bundle exec rake generate_secret_token
@@ -108,14 +108,14 @@ jobs:
       - name: Run tests
         env:
           RAILS_ENV: test
-          REDMINE_VERSION: ${{ matrix.redmine }}
+          MYSQL_PORT: ${{ job.services.mysql.ports[3306] }}
         working-directory: redmine
         run: bundle exec rake redmine:plugins:test NAME=additionals RUBYOPT="-W0"
 
       - name: Run uninstall test
         env:
           RAILS_ENV: test
-          REDMINE_VERSION: ${{ matrix.redmine }}
+          MYSQL_PORT: ${{ job.services.mysql.ports[3306] }}
         working-directory: redmine
         run: bundle exec rake redmine:plugins:migrate NAME=additionals VERSION=0
 

test/support/database-mysql.yml

@@ -1,26 +1,8 @@
-production:
-  adapter: mysql2
-  database: redmine
-  host: 127.0.0.1
-  port: 3306
-  username: root
-  password:
-  encoding: utf8mb4
-
-development:
-  adapter: mysql2
-  database: redmine
-  port: 3306
-  host: 127.0.0.1
-  username: root
-  password:
-  encoding: utf8mb4
-
 test:
   adapter: mysql2
   database: redmine
-  port: 3306
+  port: <%= ENV["MYSQL_PORT"] %>
   host: 127.0.0.1
   username: root
-  password:
+  password: BestPasswordEver
   encoding: utf8mb4