pigeonhole plugin with ldap support

Dockerfile

@@ -1,6 +1,14 @@
 FROM thallian/confd-env:latest
 
-RUN	apk add --no-cache dovecot dovecot-ldap dovecot-pigeonhole-plugin ssmtp
+RUN	apk add --no-cache dovecot dovecot-ldap ssmtp g++ openldap-dev dovecot-dev make
+
+RUN mkdir /tmp/pigeonhole
+RUN wget -qO- http://pigeonhole.dovecot.org/releases/2.2/dovecot-2.2-pigeonhole-0.4.15.tar.gz | tar -xz -C /tmp/pigeonhole --strip 1
+WORKDIR /tmp/pigeonhole
+RUN ./configure --with-ldap=yes --with-dovecot=/usr/lib/dovecot
+RUN make && make install
+
+RUN apk del g++ openldap-dev dovecot-dev make
 
 RUN addgroup -g 1111 vmail
 RUN adduser -u 1111 -h /var/lib/vmail -D -G vmail vmail

rootfs/etc/confd/conf.d/sieve-ldap.conf.toml

@@ -0,0 +1,3 @@
+[template]
+src = "sieve-ldap.conf.tmpl"
+dest = "/etc/dovecot/sieve-ldap.conf"

rootfs/etc/confd/templates/90-sieve.conf.tmpl

@@ -3,6 +3,6 @@ protocol sieve {
 }
 
 plugin {
-  sieve = file:~/sieve;active=~/.dovecot.sieve
+  sieve = ldap:/etc/dovecot/sieve-ldap.conf;bindir=~/.sieve-bin/
   sieve_after = /var/lib/vmail/sieve-after/
 }

rootfs/etc/confd/templates/sieve-ldap.conf.tmpl

@@ -0,0 +1,12 @@
+hosts = {{getenv "LDAPSIEVEHOST"}}
+dn = {{getenv "LDAPBINDDN"}}
+dnpass = {{getenv "LDAPBINDPASSWORD"}}
+sasl_bind = no
+tls = {{getenv "LDAPUSETLS"}}
+ldap_version = 3
+base = {{getenv "LDAPBASEDN"}}
+deref = never
+scope = subtree
+sieve_ldap_filter = {{getenv "LDAPUSERFILTER"}}
+sieve_ldap_script_attr = {{getenv "LDAPSIEVEATTRIBUTE"}}
+sieve_ldap_mod_attr = modifyTimestamp