Remove db connection check (#299)

This will remove the db connection check, which has caused some trouble in the past.

It will now simply run _gitea migrate_ and output a message, if the database is not available.

Co-authored-by: Lucas Hahn <lucas.hahn@novum-rgi.de>
Co-authored-by: Lunny Xiao <xiaolunwen@gmail.com>
Reviewed-on: https://gitea.com/gitea/helm-chart/pulls/299
Reviewed-by: justusbunsi <justusbunsi@noreply.gitea.io>
Reviewed-by: Lunny Xiao <xiaolunwen@gmail.com>
Co-authored-by: luhahn <luhahn@noreply.gitea.io>
Co-committed-by: luhahn <luhahn@noreply.gitea.io>

templates/gitea/init.yaml

@@ -40,31 +40,15 @@ stringData:
 
     set -euo pipefail
 
-    {{- if include "db.servicename" . }}
-    # Connection retry inspired by https://gist.github.com/dublx/e99ea94858c07d2ca6de
-    function test_db_connection() {
-      local RETRY=0
-      local MAX=30
-
-      echo 'Wait for database to become avialable...'
-      until [ "${RETRY}" -ge "${MAX}" ]; do
-        nc -vz -w2 {{ include "db.servicename" . }} {{ include "db.port" . }} && break
-        RETRY=$[${RETRY}+1]
-        echo "...not ready yet (${RETRY}/${MAX})"
-      done
-
-      if [ "${RETRY}" -ge "${MAX}" ]; then
-        echo "Database not reachable after '${MAX}' attempts!"
-        exit 1
-      fi
-    }
-
-    test_db_connection
-    {{- end }}
-
     echo '==== BEGIN GITEA CONFIGURATION ===='
 
-    gitea migrate
+    { # try
+      gitea migrate
+    } || { # catch
+      echo "Gitea migrate might fail due to database connection...This init-container will try again in a few seconds"
+      exit 1
+    }
+    
 
     {{- if or .Values.gitea.admin.existingSecret (and .Values.gitea.admin.username .Values.gitea.admin.password) }}
     function configure_admin_user() {