✨ Commits existing images to git

- Implemented sync-roles.sh to synchronize Active Directory group memberships as MariaDB roles and user accounts.
- Created Containerfile for building a custom ldap2pg image with patched YAML decoding.
- Added provision-user-db.sh for provisioning user databases and roles based on LDAP synchronization.
- Introduced a new Containerfile for MariaDB with PAM authentication via pam_ldap.
- Configured PAM service for MariaDB logins and added necessary plugins for LDAP authentication.
- Implemented health checks and entrypoint scripts for MariaDB and pgpool containers.
- Enhanced PostgreSQL image with additional extensions and custom pg_hba.conf for improved security and functionality.

database/ldap2mariadb/Containerfile

@@ -0,0 +1,16 @@
+ARG ALPINE=latest
+FROM alpine:${ALPINE}
+
+RUN apk add --no-cache \
+    bash \
+    openldap-clients \
+    mariadb-client \
+    ca-certificates \
+    && update-ca-certificates
+
+WORKDIR /workspace
+COPY --chmod=0755 sync-roles.sh        /workspace/sync-roles.sh
+COPY --chmod=0755 provision-user-db.sh /workspace/provision-user-db.sh
+
+ENTRYPOINT ["/bin/bash"]
+CMD ["sync-roles.sh"]