Switch to bitnami/mariadb, which allows for in initContainer phase.

@@ -14,7 +14,7 @@ environments:
           user: CHANGEME
         images:
           debian: "debian:bullseye-20211220"
-          mariadb: "mariadb"
+          mariadb: "bitnami/mariadb:10.3.32-debian-10-r67"
 
 ---
 

@@ -13,4 +13,6 @@ configMapGenerator:
       - ./scripts/wait-for-file
       - ./scripts/mariadb-is-ready
       - ./scripts/restore-from-empty
+      - ./scripts/bitnami-mariadb-entrypoint-container.sh
+      - ./scripts/bitnami-mariadb-entrypoint-initContainer.sh
 

@@ -53,6 +53,8 @@ spec:
             secretName: mariadb-secret
         - name: database-restore
           emptyDir: {}
+        - name: etc
+          emptyDir: {}
 
       initContainers:
         - name: wait-for-file
@@ -67,18 +69,22 @@ spec:
             - name: WAIT_FOR_FILE
               value: /docker-entrypoint-initdb.d/.restored
 
-      containers:
-        - name: mariadb
+        - name: init-mariadb
           image: mariadb
+          command: ["/var/scripts/bitnami-mariadb-entrypoint-initContainer.sh"]
           volumeMounts:
+            - name: mariadb-scripts
+              mountPath: /var/scripts
             - name: mariadb-data
-              mountPath: /var/lib/mysql
+              mountPath: /bitnami/mariadb
             - name: mariadb-config
               mountPath: /var/mariadb-config
             - name: mariadb-secret
               mountPath: /var/mariadb-secret
             - name: mariadb-entrypoint-initdb
               mountPath: /docker-entrypoint-initdb.d
+            - name: etc
+              mountPath: /runtime-etc
           env:
             - name: MARIADB_DATABASE_FILE
               value: /var/mariadb-config/MARIADB_DATABASE
@@ -89,3 +95,19 @@ spec:
             - name: MARIADB_ROOT_PASSWORD_FILE
               value: /var/mariadb-secret/MARIADB_ROOT_PASSWORD
 
+      containers:
+        - name: mariadb
+          image: mariadb
+          #securityContext:
+          #  runAsUser: 1001
+          #  runAsGroup: 1001
+          command: ["/var/scripts/bitnami-mariadb-entrypoint-container.sh"]
+          args: ["/opt/bitnami/scripts/mariadb/run.sh"]
+          volumeMounts:
+            - name: mariadb-scripts
+              mountPath: /var/scripts
+            - name: mariadb-data
+              mountPath: /bitnami/mariadb
+            - name: etc
+              mountPath: /etc
+

+#!/bin/bash
+
+# shellcheck disable=SC1091
+
+set -o errexit
+set -o nounset
+set -o pipefail
+# set -o xtrace # Uncomment this line for debugging purposes
+
+# Load libraries
+. /opt/bitnami/scripts/libbitnami.sh
+. /opt/bitnami/scripts/libmariadb.sh
+
+# Load MySQL environment variables
+. /opt/bitnami/scripts/mariadb-env.sh
+
+print_welcome_page
+
+set -x
+id
+cat /etc/passwd
+ls -la /bitnami/mariadb /bitnami/mariadb/data/ /opt/bitnami/mariadb/
+chown -R $DB_DAEMON_USER:$DB_DAEMON_GROUP /opt/bitnami/mariadb/tmp /opt/bitnami/mariadb/logs
+exec bash -x "$@"

+#!/bin/bash
+
+# shellcheck disable=SC1091
+
+set -o errexit
+set -o nounset
+set -o pipefail
+# set -o xtrace # Uncomment this line for debugging purposes
+
+# Load libraries
+. /opt/bitnami/scripts/libbitnami.sh
+. /opt/bitnami/scripts/libmariadb.sh
+
+# Load MySQL environment variables
+. /opt/bitnami/scripts/mariadb-env.sh
+
+print_welcome_page
+
+info "** Starting MariaDB setup **"
+/opt/bitnami/scripts/mariadb/setup.sh
+info "** MariaDB setup finished! **"
+ls -la /bitnami/mariadb /bitnami/mariadb/data/ /opt/bitnami/mariadb/
+cp -a /etc/* /runtime-etc/
+cat /etc/passwd