Optional exporter as some systems do not have /proc/<num>/io (OpenWrt)

Dockerfile

@@ -16,6 +16,7 @@ ENV ADMIN_PASSWORD_SECRET=samba-admin-password \
     WINBIND_USE_DEFAULT_DOMAIN=yes \
     WORKGROUP=AD \
     CUPS_TRUSTED_PROXY= \
+		EXPORTER_ENABLED=true \
 		EXPORTER_LISTEN_ADDRESS=127.0.0.1:9922
 
 COPY *.sh /

supervisord.conf

@@ -38,8 +38,9 @@ redirect_stderr=true
 [program:samba_exporter]
 environment=LANG="C",LC_TIME="c.utf-8",LC_NUMERIC="c.UTF-8"
 command=/usr/bin/samba_exporter -web.listen-address=%(ENV_EXPORTER_LISTEN_ADDRESS)s
+autostart=%(ENV_EXPORTER_ENABLED)s
 
 [program:samba_statusd]
 environment=LANG="C",LC_TIME="c.utf-8",LC_NUMERIC="c.UTF-8"
 command=/usr/bin/start_samba_statusd
-
+autostart=%(ENV_EXPORTER_ENABLED)s