Update Dockerfile

fix alpine cve

Author: jfv-orange

Dockerfile

@@ -8,9 +8,11 @@ ENV ROOT_PW="GoodNewsEveryone"
 
 ENV LOG_LEVEL="stats"
 
-RUN apk add gettext openldap openldap-clients openldap-back-mdb openldap-passwd-pbkdf2 openldap-overlay-memberof openldap-overlay-ppolicy openldap-overlay-refint && \
-    mkdir -p /run/openldap /var/lib/openldap/openldap-data && \
-    rm -rf /var/cache/apk/*
+RUN apk update \
+ && apk upgrade \
+ && apk add gettext openldap openldap-clients openldap-back-mdb openldap-passwd-pbkdf2 openldap-overlay-memberof openldap-overlay-ppolicy openldap-overlay-refint \
+ && mkdir -p /run/openldap /var/lib/openldap/openldap-data \
+ && rm -rf /var/cache/apk/*
 
 COPY scripts/* /etc/openldap/
 COPY ldif /ldif
@@ -20,4 +22,4 @@ COPY docker-entrypoint.sh /
 EXPOSE 389
 EXPOSE 636
 
-ENTRYPOINT ["/docker-entrypoint.sh"]
+ENTRYPOINT ["/docker-entrypoint.sh"]