title: Helm Sentry installation failed on deployment: initdb: could not change permissions of directory
body: <p>I have a local Openshift instance where I'm trying to install Sentry using helm as:</p>
  
  <p><code>helm install --name sentry --wait stable/sentry</code>. </p>
  
  <p>All pods are deployed fine other than the <code>PostgreSQL</code> pod also deployed as a dependency for Sentry. 
  This pod's initiliazation fails as a <code>CrashLoopBackOff</code> and the logs show the following:</p>
  
  <pre><code>The files belonging to this database system will be owned by user "postgres".
  This user must also own the server process.
  
  The database cluster will be initialized with locale "en_US.utf8".
  The default database encoding has accordingly been set to "UTF8".
  The default text search configuration will be set to "english".
  
  Data page checksums are disabled.
  
  initdb: could not change permissions of directory "/var/lib/postgresql/data/pgdata": Operation not permitted
  </code></pre>
  
  <p>Not sure where to start to fix this issue so I can get sentry deployed successfully with all its dependencies</p>