NTP client/server, prepare slapd

Signed-off-by: Yohann D'ANELLO <ynerant@crans.org>

group_vars/all/ntp.yml

@@ -0,0 +1,3 @@
+glob_ntp_client:
+  servers:
+    - ntp.crans.org

group_vars/slapd.yml

@@ -0,0 +1,7 @@
+---
+glob_slapd:
+  master_ip: "{{ query('ldap', 'ip', 'tealc', 'adm') | ipv4 | first }}"
+  regex: "^(role:(dhcp|dns|dns-primary|dns-secondary|ftp|gitlab|miroir|ntp|pve|radius|backup)|ecdsa-sha2-nistp256:.*|ssh-(ed25519|dss|rsa):.*)$"
+  replication_credentials: "{{ vault.ldap_replication_credentials }}"
+  private_key: "{{ vault.ldap_private_key }}"
+  certificate: "{{ vault.ldap_certificate }}"

hosts

@@ -13,6 +13,9 @@ localhost
 templier.adh.crans.org
 dt.adh.crans.org
 
+[slapd]
+dt.adh.crans.org
+
 [virtu]
 dt.adh.crans.org
 

plays/base.yml

@@ -2,6 +2,7 @@
 ---
 
 - import_playbook: apt.yml
+- import_playbook: ntp.yml
 
 - hosts: all
   roles:
@@ -20,7 +21,7 @@
     - sudo
     - systemd
     - pacman
-    - ntp
+    - ntp-client-arch
     - texlive
     - xorg
     - i3

plays/ntp.yml

@@ -0,0 +1,13 @@
+#!/usr/bin/env ansible-playbook
+---
+- hosts: ntp_server
+  vars:
+    ntp_server: '{{ glob_ntp_server | combine(loc_ntp_server | default({})) }}'
+  roles:
+    - ntp-server
+
+- hosts: debian
+  vars:
+    ntp_client: '{{ glob_ntp_client | combine(loc_ntp_client | default({})) }}'
+  roles:
+    - ntp-client

roles/ntp-client/handlers/main.yml

@@ -0,0 +1,5 @@
+---
+- name: Restart systemd-timesyncd
+  service:
+    name: systemd-timesyncd
+    state: restarted

roles/ntp-client/tasks/main.yml

@@ -0,0 +1,29 @@
+---
+- name: Clean up ntp
+  apt:
+    state: absent
+    name: ntp
+    purge: true
+  register: apt_result
+  retries: 3
+  until: apt_result is succeeded
+  when: "'ntp_server' not in group_names"
+
+- name: Install systemd-timesyncd (bullseye)
+  apt:
+    name: systemd-timesyncd
+    update_cache: true
+    install_recommends: false
+  register: apt_result
+  retries: 3
+  until: apt_result is succeeded
+  when:
+    - "'ntp_server' not in group_names"
+    - ansible_distribution_release == "bullseye"
+
+- name: Configure NTP
+  template:
+    src: systemd/timesyncd.conf.j2
+    dest: /etc/systemd/timesyncd.conf
+  notify: Restart systemd-timesyncd
+  when: "'ntp_server' not in group_names"

roles/ntp-client/templates/systemd/timesyncd.conf.j2

@@ -0,0 +1,2 @@
+[Time]
+NTP={{ ntp_client.servers | join(' ') }}

roles/ntp-server/tasks/main.yml

@@ -0,0 +1,27 @@
+---
+- name: Install NTP
+  apt:
+    update_cache: true
+    name: ntp
+  register: apt_result
+  retries: 3
+  until: apt_result is succeeded
+
+- name: Configure NTP daemon
+  lineinfile:
+    path: /etc/default/ntp
+    regexp: '^NTPD_OPTS'
+    line: NTPD_OPTS='-g -x'
+  check_mode: no
+
+- name: Configure NTP
+  template:
+    src: ntp.conf.j2
+    dest: /etc/ntp.conf
+    mode: 0644
+
+- name: Start ntp service
+  systemd:
+    name: ntp
+    enabled: true
+    state: started

roles/ntp-server/templates/ntp.conf.j2

@@ -0,0 +1,62 @@
+{{ ansible_header | comment }}
+# /etc/ntp.conf, configuration for ntpd; see ntp.conf(5) for help
+
+driftfile /var/lib/ntp/ntp.drift
+
+# Leap seconds definition provided by tzdata
+leapfile /usr/share/zoneinfo/leap-seconds.list
+
+# Enable this if you want statistics to be logged.
+#statsdir /var/log/ntpstats/
+
+statistics loopstats peerstats clockstats
+filegen loopstats file loopstats type day enable
+filegen peerstats file peerstats type day enable
+filegen clockstats file clockstats type day enable
+
+
+# pool.ntp.org maps to about 1000 low-stratum NTP servers.  Your server will
+# pick a different set every time it starts up.  Please consider joining the
+# pool: <http://www.pool.ntp.org/join.html>
+pool ntp.crans.org iburst
+pool 0.debian.pool.ntp.org iburst
+pool 1.debian.pool.ntp.org iburst
+pool 2.debian.pool.ntp.org iburst
+pool 3.debian.pool.ntp.org iburst
+
+
+# Access control configuration; see /usr/share/doc/ntp-doc/html/accopt.html for
+# details.  The web page <http://support.ntp.org/bin/view/Support/AccessRestrictions>
+# might also be helpful.
+#
+# Note that "restrict" applies to both servers and clients, so a configuration
+# that might be intended to block requests from certain clients could also end
+# up blocking replies from your own upstream servers.
+
+# By default, exchange time with everybody, but don't allow configuration.
+restrict -4 default kod notrap nomodify nopeer noquery limited
+restrict -6 default kod notrap nomodify nopeer noquery limited
+
+# Local users may interrogate the ntp server more closely.
+restrict 127.0.0.1
+restrict ::1
+
+# Needed for adding pool entries
+restrict source notrap nomodify noquery
+
+# Server on adm can sync
+restrict 172.16.42.0 mask 255.255.255.0 notrap nomodify
+
+# Clients from this (example!) subnet have unlimited access, but only if
+# cryptographically authenticated.
+#restrict 192.168.123.0 mask 255.255.255.0 notrust
+
+
+# If you want to provide time to your local subnet, change the next line.
+# (Again, the address is an example only.)
+#broadcast 192.168.123.255
+
+# If you want to listen to time broadcasts on your local subnet, de-comment the
+# next lines.  Please do this only if you trust everybody on the network!
+#disable auth
+#broadcastclient

roles/slapd/README.md

@@ -0,0 +1,13 @@
+# SLAPD
+
+Deploie un serveur ldap master ou replica
+
+## VARS
+
+slapd:
+  - ip : l'ip sur lequel il va installer le serveur ldap
+  - replica : s'il s'agit d'un master ou d'une replica
+  - replica_rid : le numéro de replica du serveur
+  - master_ip : l'ip du master
+  - replication_credentials : les credientials pour authentifier les replicas
+    auprès du master

roles/slapd/handlers/main.yml

@@ -0,0 +1,6 @@
+---
+
+- name: Restart slapd
+  service:
+    name: slapd.service
+    state: restarted

roles/slapd/tasks/main.yml

@@ -0,0 +1,35 @@
+---
+- name: Install slapd
+  apt:
+    update_cache: true
+    name:
+      - slapd
+  register: apt_result
+  retries: 3
+  until: apt_result is succeeded
+
+- name: Remove slapd config directory
+  file:
+    path: /etc/ldap/slapd.d/
+    state: absent
+
+- name: Deploy slapd configuration
+  template:
+    src: "ldap/{{ item.dest }}.j2"
+    dest: "/etc/ldap/{{ item.dest }}"
+    mode: "{{ item.mode }}"
+    owner: openldap
+    group: openldap
+  loop:
+    - { dest: slapd.conf, mode: "0600" }
+    - { dest: ldap.key, mode: "0600" }
+    - { dest: ldap.pem, mode: "0644" }
+  notify: Restart slapd
+
+- name: Deploy ldap services
+  lineinfile:
+     path: /etc/default/slapd
+     regexp: '^SLAPD_SERVICES='
+     line: 'SLAPD_SERVICES="ldaps://{{ slapd.ip }}/ ldapi:///"'
+  notify: Restart slapd
+  check_mode: no

roles/slapd/templates/ldap/ldap.key.j2

@@ -0,0 +1 @@
+{{ slapd.private_key }}

roles/slapd/templates/ldap/ldap.pem.j2

@@ -0,0 +1 @@
+{{ slapd.certificate }}

roles/slapd/templates/ldap/slapd.conf.j2

@@ -0,0 +1,202 @@
+# This is the main slapd configuration file. See slapd.conf(5) for more
+# info on the configuration options.
+
+#######################################################################
+# Global Directives:
+
+# Schema and objectClass definitions
+include         /etc/ldap/schema/core.schema
+include         /etc/ldap/schema/cosine.schema
+include         /etc/ldap/schema/nis.schema
+include         /etc/ldap/schema/inetorgperson.schema
+
+# Where the pid file is put. The init.d script
+# will not stop the server if you change this.
+pidfile         /var/run/slapd/slapd.pid
+
+# List of arguments that were passed to the server
+argsfile        /var/run/slapd/slapd.args
+
+# Read slapd.conf(5) for possible values
+loglevel        none
+
+# Where the dynamically loaded modules are stored
+modulepath      /usr/lib/ldap
+moduleload      back_mdb
+{% if not slapd.replica %}
+moduleload 		auditlog
+
+overlay 		auditlog
+auditlog 		/var/log/openldap/auditlog.log
+
+moduleload constraint
+overlay constraint
+constraint_attribute description regex {{ slapd.regex }}
+  restrict=ldap:///ou=hosts,dc=ynerant,dc=fr??one?(objectClass=device)
+constraint_attribute uid regex ^_
+  restrict=ldap:///ou=passwd,dc=ynerant,dc=fr??one?(objectClass=posixAccount)
+
+moduleload 		syncprov
+{% endif %}
+
+# TLS Certificates
+#TLSCipherSuite HIGH:MEDIUM:-SSLv2:-SSLv3
+TLSCertificateFile /etc/ldap/ldap.pem
+TLSCertificateKeyFile /etc/ldap/ldap.key
+
+# The maximum number of entries that is returned for a search operation
+sizelimit 500
+
+# The tool-threads parameter sets the actual amount of cpu's that is used
+# for indexing.
+tool-threads 1
+
+#######################################################################
+# Specific Backend Directives for mdb:
+# Backend specific directives apply to this backend until another
+# 'backend' directive occurs
+backend         mdb
+
+#######################################################################
+# Specific Backend Directives for 'other':
+# Backend specific directives apply to this backend until another
+# 'backend' directive occurs
+#backend                <other>
+
+#######################################################################
+# Specific Directives for database #1, of type mdb:
+# Database specific directives apply to this databasse until another
+# 'database' directive occurs
+database        mdb
+
+# The base of your directory in database #1
+suffix          "dc=ynerant,dc=fr"
+
+# rootdn directive for specifying a superuser on the database. This is needed
+# for syncrepl.
+rootdn          "cn=admin,dc=ynerant,dc=fr"
+
+# Where the database file are physically stored for database #1
+directory       "/var/lib/ldap"
+
+# The dbconfig settings are used to generate a DB_CONFIG file the first
+# time slapd starts.  They do NOT override existing an existing DB_CONFIG
+# file.  You should therefore change these settings in DB_CONFIG directly
+# or remove DB_CONFIG and restart slapd for changes to take effect.
+
+# For the Debian package we use 2MB as default but be sure to update this
+# value if you have plenty of RAM
+#dbconfig set_cachesize 0 2097152 0
+
+# Sven Hartge reported that he had to set this value incredibly high
+# to get slapd running at all. See http://bugs.debian.org/303057 for more
+# information.
+
+# Number of objects that can be locked at the same time.
+#dbconfig set_lk_max_objects 1500
+# Number of locks (both requested and granted)
+#dbconfig set_lk_max_locks 1500
+# Number of lockers
+#dbconfig set_lk_max_lockers 1500
+
+# Indexing options for database #1
+index           objectClass eq
+
+# Save the time that the entry gets modified, for database #1
+lastmod         on
+
+# Checkpoint the BerkeleyDB database periodically in case of system
+# failure and to speed slapd shutdown.
+checkpoint      512 30
+
+{% if slapd.replica %}
+syncrepl
+        rid={{ slapd.replica_rid }}
+        provider=ldaps://{{ slapd.master_ip }}:636
+        bindmethod=simple
+        binddn="cn=replicator,dc=ynerant,dc=fr"
+        credentials={{ slapd.replication_credentials }}
+        searchbase="dc=ynerant,dc=fr"
+        scope=sub
+        schemachecking=on
+        type=refreshAndPersist
+        timeout=0
+        network-timeout=0
+        retry="30 20 300 +"
+        tls_reqcert=allow
+{% endif %}
+
+{% if slapd.replica %}
+# The userPassword by default can be changed
+# by the entry owning it if they are authenticated.
+# Others should not be able to see it, except the
+# admin entry below
+# These access lines apply to database #1 only
+access to attrs=userPassword,shadowLastChange
+        by anonymous auth
+        by * none
+
+# Ensure read access to the base for things like
+# supportedSASLMechanisms.  Without this you may
+# have problems with SASL not knowing what
+# mechanisms are available and the like.
+# Note that this is covered by the 'access to *'
+# ACL below too but if you change that as people
+# are wont to do you'll still need this if you
+# want SASL (and possible other things) to work
+# happily.
+access to dn.base="" by * read
+
+# The admin dn has full write access, everyone else
+# can read everything.
+access to *
+        by * read
+{% else %}
+overlay syncprov
+
+# The userPassword by default can be changed
+# by the entry owning it if they are authenticated.
+# Others should not be able to see it, except the
+# admin entry below
+# These access lines apply to database #1 only
+access to attrs=userPassword,shadowLastChange
+        by anonymous auth
+        by self write
+        by set="[cn=nounou,ou=group,dc=ynerant,dc=fr]/memberUid & user/uid" write
+        by dn="cn=replicator,dc=ynerant,dc=fr" read
+        by * none
+
+access to attrs=loginShell,mail,telephoneNumber
+        by self write
+        by set="[cn=nounou,ou=group,dc=ynerant,dc=fr]/memberUid & user/uid" write
+        by dn="cn=replicator,dc=ynerant,dc=fr" read
+        by * read
+
+# Ensure read access to the base for things like
+# supportedSASLMechanisms.  Without this you may
+# have problems with SASL not knowing what
+# mechanisms are available and the like.
+# Note that this is covered by the 'access to *'
+# ACL below too but if you change that as people
+# are wont to do you'll still need this if you
+# want SASL (and possible other things) to work
+# happily.
+access to dn.base="" by * read
+
+# The admin dn has full write access, everyone else
+# can read everything.
+access to *
+        by set="[cn=nounou,ou=group,dc=ynerant,dc=fr]/memberUid & user/uid" write
+        by dn="cn=replicator,dc=ynerant,dc=fr" read
+        by * read
+{% endif %}
+
+
+#######################################################################
+# Specific Directives for database #2, of type 'other' (can be mdb too):
+# Database specific directives apply to this databasse until another
+# 'database' directive occurs
+#database        <other>
+
+# The base of your directory for database #2
+#suffix         "dc=debian,dc=org"