Get rid of mysql/auth.env

For simplification, we move the environment variables away from the
auth.env file.

tutor/templates/apps/mysql/auth.env

@@ -1 +0,0 @@
-MYSQL_ROOT_PASSWORD={{ MYSQL_ROOT_PASSWORD }}

tutor/templates/k8s/deployments.yml

@@ -320,10 +320,7 @@ spec:
           args: ["mysqld", "--character-set-server=utf8", "--collation-server=utf8_general_ci"]
           env:
             - name: MYSQL_ROOT_PASSWORD
-              valueFrom:
-                configMapKeyRef:
-                  name: mysql-config
-                  key: MYSQL_ROOT_PASSWORD
+              value: "{{ MYSQL_ROOT_PASSWORD }}"
           ports:
             - containerPort: 3306
           volumeMounts:

tutor/templates/kustomization.yml

@@ -35,8 +35,6 @@ configMapGenerator:
 - name: nginx-config
   files:{% for file in "apps/nginx"|walk_templates %}
   - {{ file }}{% endfor %}
-- name: mysql-config
-  env: apps/mysql/auth.env
 {{ patch("kustomization-configmapgenerator") }}
 
 {{ patch("kustomization") }}

tutor/templates/local/docker-compose.yml

@@ -26,7 +26,8 @@ services:
     restart: unless-stopped
     volumes:
       - ../../data/mysql:/var/lib/mysql
-    env_file: ../apps/mysql/auth.env
+    environment:
+      MYSQL_ROOT_PASSWORD: "{{ MYSQL_ROOT_PASSWORD }}"
   {% endif %}
 
   {% if ACTIVATE_ELASTICSEARCH %}