more or less working entrypoint
This commit is contained in:
Mauro Torrez
parent
0244610e28
commit
214e40f367
39
Dockerfile
39
Dockerfile
@ -1,27 +1,40 @@
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FROM eumau/debian:buster-slim
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ENV OPENLDAP_ADMIN_PASSWORD="root"
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ENV LDAP_ADMIN_CN="admin"
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# admin CN, DN => cn=%%ADMIN_DN%%,%%DOMAIN_DN%%
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ENV LDAP_ADMIN_PASSWORD="admin"
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# password for cn=%%ADMIN_DN%%,%%DOMAIN_DN%%
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ENV LDAP_CONFIG_PASSWORD="${LDAP_ADMIN_PASSWORD}"
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# password for cn=admin,cn=config
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ENV LDAP_DOMAIN=""
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# domain O (example.org)
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ENV LDAP_DOMAIN_ACCESS="{0}to attrs=userPassword by self write by anonymous auth by * none\n{1}to attrs=shadowLastChange by self write by * read\n{2}to * by * read"
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# olcDbAccess attribute for domain entry (newline-separated)
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ENV LDAP_DOMAIN_DN=""
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# domain DN (dc=example,dc=org)
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ENV LDAP_DOMAIN_INDEX="cn,uid eq\nmember,memberUid eq\nobjectClass eq\nuidNumber,gidNumber eq"
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# olcDbIndex attribute for domain entry (newline-separated)
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ENV LDAP_DOMAIN_OUS="People Alias Group"
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# domain OUs (space-separated)
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ENV LDAP_MEMBEROF="true"
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# enable memberOf module
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ENV LDAP_SCHEMAS="core cosine inetorgperson misc nis"
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# space-separated list of schemas to load
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# space-separated list of schemas
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ENV OPENLDAP_SCHEMAS="misc"
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RUN apt-get update && \
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DEBIAN_FRONTEND=noninteractive apt-get install -y \
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RUN apt-get update \
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&& DEBIAN_FRONTEND=noninteractive apt-get install -y \
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slapd \
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ldap-utils && \
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apt-get clean && \
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rm -rf /var/lib/apt/lists/* /tmp/* /var/tmp/*
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COPY entrypoint.sh /entrypoint.sh
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# ADD my_custom_schema: install by setting OPENLDAP_SCHEMAS=my_custom_schema
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# COPY my_custom_schema.ldif /etc/ldap/schema/my_custom_schema.ldif
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ADD entrypoint.sh /
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EXPOSE 389
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VOLUME ["/etc/ldap/slapd.d", "/var/lib/ldap", "/var/backups/ldap"]
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VOLUME ["/etc/ldap/schema", "/etc/ldap/slapd.d", "/var/lib/ldap", "/var/backups/ldap"]
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ENTRYPOINT ["/entrypoint.sh"]
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ENTRYPOINT ["/bin/bash", "/entrypoint.sh"]
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# log level info:
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CMD ["slapd", "-d", "32768", "-u", "openldap", "-g", "openldap"]
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202
entrypoint.sh
202
entrypoint.sh
@ -1,28 +1,25 @@
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#!/bin/bash
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msg(){ ${VERBOSE:-true} && echo ${@} ; }
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assert(){ [[ $? -eq 0 ]] || { [[ -n ${1} ]] && msg ${@} ; exit 1 ; } }
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assert(){ [[ $? -eq 0 ]] || { [[ -n ${1} ]] && echo ${@} ; exit 1 ; } }
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# from https://github.com/dinkel/docker-openldap/blob/master/entrypoint.sh:
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# When not limiting the open file descritors limit, the memory consumption of
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# slapd is absurdly high. See https://github.com/docker/docker/issues/8231
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ulimit -n 8192
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msg "I: running slapd for initial setup..."
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echo "I: running slapd for initial setup..."
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slapd -u openldap -g openldap -h ldapi:///
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assert "E: openldap died unexpectedly!"
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PIDFILE=$(ldapsearch -LLL -Y EXTERNAL -H ldapi:/// -b "cn=config" -s base \
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"" olcPidFile | grep olcPidFile | awk "{print $2}")
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msg "I: slapd running with PID ${PIDFILE}"
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echo "I: slapd running with PID ${PIDFILE}"
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[[ -n "${OPENLDAP_ADMIN_PASSWORD}" ]]
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assert "E: please set non-empty password in OPENLDAP_ADMIN_PASSWORD and retry."
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[[ -n "${LDAP_CONFIG_PASSWORD}" ]]
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assert "E: please set non-empty password in LDAP_CONFIG_PASSWORD and retry."
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HASHED_PW=$(slappasswd -h {SSHA} -s "${OPENLDAP_ADMIN_PASSWORD}")
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[[ -n "${HASHED_PW}" ]]
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assert "E: password hash unexpectedly empty!"
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HASHED_PW=$(slappasswd -h "{SSHA}" -s "${LDAP_CONFIG_PASSWORD}")
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msg "I: Setting administrator password..."
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echo "I: Setting administrator password..."
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ldapmodify -Y EXTERNAL -H ldapi:/// <<EOF
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dn: olcDatabase={0}config,cn=config
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changetype: modify
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@ -36,15 +33,15 @@ assert "FATAL: failure setting administrator password!"
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eval "declare -A LOADED_SCHEMAS=( $(ldapsearch -LLL -Y EXTERNAL -H ldapi:/// \
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-b "cn=schema,cn=config" -s one cn \
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| sed -n 's/^cn:.*[{].*[}]\(.*\)$/[\1]=loaded/p') )"
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msg "I: currently loaded schemas: ${!LOADED_SCHEMAS[@]}"
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echo "I: currently loaded schemas: ${!LOADED_SCHEMAS[@]}"
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# load schemas
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# built-in: core, cosine, nis, inetorgperson
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# available: collective, corba, duaconf, dyngroup, java, misc, nis, openldap, pmi, ppolicy
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for schema in ${OPENLDAP_SCHEMAS}
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for schema in ${LDAP_SCHEMAS}
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do
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[[ -z "${LOADED_SCHEMAS[$schema]}" ]] || continue;
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msg "I: loading schema ${schema}..."
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echo "I: loading schema ${schema}..."
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[[ -f /etc/ldap/schema/${schema}.ldif ]]
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assert "E: schema /etc/ldap/schema/${schema}.ldif not found!"
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ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/ldap/schema/${schema}.ldif
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@ -52,9 +49,9 @@ do
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done
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# enable memberof module
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if ${OPENLDAP_ENABLE_MEMBEROF}
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if ${LDAP_MEMBEROF}
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then
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msg "I: enabling memberof module ..."
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echo "I: enabling memberof module ..."
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ldapmodify -Y EXTERNAL -H ldapi:/// <<EOF
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dn: cn=module{0},cn=config
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changetype: modify
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@ -65,21 +62,188 @@ EOF
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RES=$?
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[[ $RES -eq 0 ]] || [[ $RES -eq 20 ]]
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assert "E: failed loading memberof module (${RES})"
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msg "I: module memberof enabled (${RES})"
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echo "I: module memberof enabled (${RES})"
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unset RES
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fi
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# 0. calcular DN a partir del dominio
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# 1.3.0 crear password admin
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ADMIN_PW_HASH=$(slappasswd -h "{SSHA}" -s "${LDAP_ADMIN_PASSWORD}")
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# 1.2 buscar dominio
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if ldapsearch -LLL -H ldapi:/// -Y EXTERNAL -s one -b "cn=config" \
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"(&(olcSuffix=\"${LDAP_DOMAIN_DN}\")(olcDatabase=mdb))" | \
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egrep -q '^dn: '
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then
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echo "Found cn=config entry for ${LDAP_DOMAIN_DN}"
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else
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echo "No cn=config entry for ${LDAP_DOMAIN_DN}."
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echo "Creating directory /var/lib/ldap/${LDAP_DOMAIN_DN}"
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mkdir "/var/lib/ldap/${LDAP_DOMAIN_DN}"
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chown -R openldap:openldap "/var/lib/ldap/${LDAP_DOMAIN_DN}"
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echo "Creating cn=config entry for ${LDAP_DOMAIN_DN}"
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ldapadd -Y EXTERNAL -H ldapi:/// <<EOF
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dn: olcDatabase=mdb,cn=config
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objectClass: olcDatabaseConfig
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objectClass: olcMdbConfig
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olcDbMaxSize: 1073741824
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olcSuffix: ${LDAP_DOMAIN_DN}
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olcDbDirectory: /var/lib/ldap/${LDAP_DOMAIN_DN}
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olcRootDN: cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN}
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olcRootPW: ${ADMIN_PW_HASH}
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$(echo -ne "${LDAP_DOMAIN_ACCESS}" | sed -e 's/^/olcAccess: /g')
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olcDbCheckpoint: 512 30
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olcLastMod: TRUE
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$(echo -ne "${LDAP_DOMAIN_INDEX}" | sed -e 's/^/olcDbIndex: /g')
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$(echo -ne "${LDAP_DOMAIN_LIMITS}" | sed -e 's/^/olcLimits: /g')
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EOF
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fi
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echo "Get DN of cn=config entry for ${LDAP_DOMAIN_DN}"
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CN_CONFIG_DN=$(ldapsearch -LLL -H ldapi:/// -Y EXTERNAL -s one -b cn=config "(&(olcSuffix=${LDAP_DOMAIN_DN})(olcDatabase=mdb))" | egrep '^dn: ' | sed -e 's/^dn: //g')
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if [[ -n ${CN_CONFIG_DN} ]]
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then echo "Found DN = ${CN_CONFIG_DN}"
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else
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echo "FATAL: could not find cn=config entry for ${LDAP_DOMAIN_DN}"
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echo "PLEASE NOTE: only MDB database format is supported (PR welcome :)"
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exit 1
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fi
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# 2. olcovrlay memberof
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if [[ ${LDAP_MEMBEROF} ]]
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then
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echo "Check if memberOf is enabled"
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MEMBEROF_DN=$(ldapsearch -LLL -H ldapi:/// -Y EXTERNAL -s one -b "${CN_CONFIG_DN}" "(olcOverlay=memberOf)" | egrep '^dn: ' | sed -e 's/^dn: //g')
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if [[ -n ${MEMBEROF_DN} ]]
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then echo "memberOf overlay already enabled for ${CN_CONFIG_DN}"
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else
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echo "Enabling memberOf overlay"
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ldapadd -Y EXTERNAL -H ldapi:/// <<EOF
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dn: olcOverlay=memberof,${CN_CONFIG_DN}
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objectClass: olcOverlayConfig
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objectClass: olcConfig
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objectClass: olcMemberOf
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olcMemberOfDangling: ignore
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olcMemberOfRefInt: FALSE
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olcMemberOfGroupOC: groupOfNames
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olcMemberOfMemberAD: member
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olcMemberOfMemberOfAD: memberOf
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EOF
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fi
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fi
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[[ -n "${LDAP_ADMIN_PASSWORD}" ]]
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assert "E: please set non-empty password in LDAP_ADMIN_PASSWORD and retry."
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HASHED_PW=$(slappasswd -h "{SSHA}" -s "${LDAP_ADMIN_PASSWORD}")
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echo "I: Setting domain administrator password..."
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ldapmodify -Y EXTERNAL -H ldapi:/// <<EOF
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dn: ${CN_CONFIG_DN}
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changetype: modify
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replace: olcRootPW
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olcRootPW: ${HASHED_PW}
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EOF
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assert "FATAL: failure setting administrator password!"
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# -------------------------------------------
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# create base dn
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echo "Check if ${LDAP_DOMAIN_DN} exists"
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DOM_DN=$(ldapsearch -LLL -H ldapi:/// -D cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN} -w "${LDAP_ADMIN_PASSWORD}" -s base -b "${LDAP_DOMAIN_DN}" "(objectClass=*)" | egrep '^dn: ' | sed -e 's/^dn: //g')
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if [[ -n ${DOM_DN} ]]
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then echo "${LDAP_DOMAIN_DN} already present"
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else
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cat <<EOF
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dn: ${LDAP_DOMAIN_DN}
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objectClass: dcObject
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objectClass: organization
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objectClass: top
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dc: $(echo -n "${LDAP_DOMAIN_DN#dc=}" | sed 's/,.*$//g')
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o: ${LDAP_DOMAIN}
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EOF
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echo "Creating ${LDAP_DOMAIN_DN}"
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ldapadd -H ldapi:/// -D cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN} -w "${LDAP_ADMIN_PASSWORD}" <<EOF
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dn: ${LDAP_DOMAIN_DN}
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objectClass: dcObject
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objectClass: organization
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objectClass: top
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dc: $(echo -n "${LDAP_DOMAIN_DN#dc=}" | sed 's/,.*$//g')
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o: ${LDAP_DOMAIN}
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EOF
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fi
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# create admin user
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echo "Check if cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN} exists"
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ADM_DN=$(ldapsearch -LLL -H ldapi:/// -D cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN} -w "${LDAP_ADMIN_PASSWORD}" -s base -b "cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN}" "(objectClass=*)" | egrep '^dn: ' | sed -e 's/^dn: //g')
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if [[ -n ${ADM_DN} ]]
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then echo "cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN} already present"
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else
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echo "Creating cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN}"
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ldapadd -H ldapi:/// -D cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN} -w "${LDAP_ADMIN_PASSWORD}" <<EOF
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dn: cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN}
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objectClass: organizationalRole
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objectClass: simpleSecurityObject
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cn: ${LDAP_ADMIN_CN}
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description: LDAP Administrator role for domain ${LDAP_DOMAIN}
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userPassword: ${ADMIN_PW_HASH}
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EOF
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fi
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# update admin password
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# TODO
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# create OUs
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for OU in ${LDAP_DOMAIN_OUS}
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do
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echo "Check if ou=${OU},${LDAP_DOMAIN_DN} exists"
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OU_DN=$(ldapsearch -LLL -H ldapi:/// -D cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN} -w "${LDAP_ADMIN_PASSWORD}" -s base -b "ou=${OU},${LDAP_DOMAIN_DN}" "(objectClass=*)" | egrep '^dn: ' | sed -e 's/^dn: //g')
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if [[ -n ${OU_DN} ]]
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then echo "ou=${OU} already present in ${LDAP_DOMAIN_DN}"
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else
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echo "Creating ou=${OU},${LDAP_DOMAIN_DN}"
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ldapadd -H ldapi:/// -D cn=${LDAP_ADMIN_CN},${LDAP_DOMAIN_DN} -w "${LDAP_ADMIN_PASSWORD}" <<EOF
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dn: ou=${OU},${LDAP_DOMAIN_DN}
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objectClass: organizationalUnit
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objectClass: top
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ou: ${OU}
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EOF
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fi
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done
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# -------------------------------------------
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# kill slapd after initial setup
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msg "I: killing initial server..."
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echo "I: killing initial server..."
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kill -INT $(cat ${PIDFILE})
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# unset sensitive variables
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unset OPENLDAP_ROOT_PASSWORD
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unset OPENLDAP_ADMIN_PASSWORD
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unset HASHED_PW
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unset LOADED_SCHEMAS
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unset PIDFILE
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# run Dockerfile CMD
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msg "I: running CMD $@"
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echo "I: running CMD $@"
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set -e
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exec "$@"
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