build: Optimize Docker file

.onedev-buildspec.yml

-version: 25
-jobs:
-- name: Git Sync Push
-  steps:
-  - !PushRepository
-    name: Push to gitlab.fachschaften.org
-    remoteUrl: https://gitlab.fachschaften.org/tobiasff3200/django-core.git
-    userName: Tobias
-    passwordSecret: GitLab.Fachschaften.org_Sync_Token
-    force: false
-    condition: ALL_PREVIOUS_STEPS_WERE_SUCCESSFUL
-  triggers:
-  - !BranchUpdateTrigger {}
-  - !TagCreateTrigger {}
-  retryCondition: never
-  maxRetries: 3
-  retryDelay: 30
-  timeout: 3600
-- name: Git Sync Pull
-  steps:
-  - !PullRepository
-    name: Pull from gitlab.fachschaften.org
-    remoteUrl: https://gitlab.fachschaften.org/tobiasff3200/django-core.git
-    syncToChildProject: false
-    userName: Tobias
-    passwordSecret: GitLab.Fachschaften.org_Sync_Token
-    refs: refs/heads/* refs/tags/*
-    withLfs: true
-    force: false
-    condition: ALL_PREVIOUS_STEPS_WERE_SUCCESSFUL
-  triggers:
-  - !ScheduleTrigger
-    cronExpression: 0 0 7/12 * * ? *
-  retryCondition: never
-  maxRetries: 3
-  retryDelay: 30
-  timeout: 3600

Dockerfile

@@ -2,11 +2,9 @@ FROM python:3.12
 
 WORKDIR /app
 COPY requirements.txt requirements.txt
-RUN pip install -r requirements.txt
-RUN rm requirements.txt
+RUN pip install --no-cache-dir -r requirements.txt && rm requirements.txt
 
 COPY . /app
-RUN mkdir -p /app/db/
-RUN chmod +x /app/start.sh
+RUN mkdir -p /app/db/ && chmod +x /app/start.sh
 EXPOSE 8000
 ENTRYPOINT ["./start.sh"]