sssd #2
35
files/sssd.conf.mo
Normal file
35
files/sssd.conf.mo
Normal file
@@ -0,0 +1,35 @@
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[sssd]
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services = nss, pam, sudo
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domains = default
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[domain/default]
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id_provider = ldap
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auth_provider = ldap
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chpass_provider = ldap
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sudo_provider = ldap
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ldap_uri = ldap://{{ldap_host}}
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ldap_search_base = {{ldap_base_dn}}
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ldap_network_timeout = 3
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ldap_bind_dn = {{ldap_bind_dn}}
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ldap_bind_pw = {{ldap_bind_password}}
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# Sudo settings
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ldap_sudo_search_base = {{ldap_base_dn}}
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# Filter for sudo access: global host_admin OR host-specific admin
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ldap_sudo_full_refresh_interval = 900
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ldap_sudo_smart_refresh_interval = 300
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# Access control: only allow users in host_access or host_{hostname}_access
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access_provider = ldap
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ldap_access_order = filter
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ldap_access_filter = (|(memberof=cn=host_access,ou=Groups,{{ldap_base_dn}})(memberof=cn=host_{{current_host}}_access,ou=Groups,{{ldap_base_dn}}))
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# Mapping
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ldap_user_search_base = ou=People,{{ldap_base_dn}}
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ldap_group_search_base = ou=Groups,{{ldap_base_dn}}
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# Cache settings
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cache_credentials = True
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enumerate = False
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147
index.sh
147
index.sh
@@ -1,139 +1,54 @@
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#!/bin/bash
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# Stop this script on any error.
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set -e
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# Pull in the mustache template library for bash
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source lib/mo
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if [ ! -f ./ldap.vars ]; then
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echo "ldap.vars file not found!"
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echo "Please copy ldap.vars.template to ldap.vars and edit it."
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exit 1
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fi
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source ldap.vars
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export current_host=`hostname`
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export current_host=$(hostname)
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# Install SSSD and required tools
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# We use sssd-ldap for the backend and libnss-sss/libpam-sss for the system hooks
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DEBIAN_FRONTEND=noninteractive apt update
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DEBIAN_FRONTEND=noninteractive apt install -y sssd sssd-ldap libnss-sss libpam-sss ldap-utils curl libsasl2-modules-gssapi-mit
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echo "nslcd nslcd/ldap-base string $ldap_base_dn" | debconf-set-selections
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echo "nslcd nslcd/ldap-uris string ldap://$ldap_host" | debconf-set-selections
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echo "libnss-ldapd/ libnss-ldapd/nsswitch multiselect passwd, group" | debconf-set-selections
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# Configure the options for the LDAP packages based on debian or ubuntu
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if grep -qiE "^NAME=\"debian" /etc/os-release; then
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echo "libnss-ldap libnss-ldap/rootbindpw string $ldap_admin_password" | debconf-set-selections
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echo "libnss-ldap libnss-ldap/bindpw string $ldap_bind_password" | debconf-set-selections
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echo "libnss-ldap libnss-ldap/dbrootlogin boolean true" | debconf-set-selections
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echo "libnss-ldap libnss-ldap/binddn string $ldap_bind_dn" | debconf-set-selections
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echo "libnss-ldap libnss-ldap/confperm boolean false" | debconf-set-selections
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echo "libnss-ldap libnss-ldap/rootbinddn string $ldap_admin_dn" | debconf-set-selections
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echo "libnss-ldap libnss-ldap/dblogin boolean false" | debconf-set-selections
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echo "libnss-ldap libnss-ldap/override boolean true" | debconf-set-selections
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echo "shared shared/ldapns/ldap-server string ldap://$ldap_host" | debconf-set-selections
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echo "shared shared/ldapns/base-dn string $ldap_base_dn" | debconf-set-selections
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echo "shared shared/ldapns/ldap_version string 3" | debconf-set-selections
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echo "libpam-ldap libpam-ldap/bindpw string $ldap_bind_password" | debconf-set-selections
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echo "libpam-ldap libpam-ldap/rootbindpw string $ldap_admin_password" | debconf-set-selections
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echo "libpam-ldap libpam-ldap/dblogin boolean true" | debconf-set-selections
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echo "libpam-ldap libpam-ldap/pam_password string crypt" | debconf-set-selections
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echo "libpam-ldap libpam-ldap/rootbinddn string $ldap_admin_dn" | debconf-set-selections
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echo "libpam-ldap libpam-ldap/override boolean true" | debconf-set-selections
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echo "libpam-ldap libpam-ldap/binddn string $ldap_bind_dn" | debconf-set-selections
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echo "libpam-ldap libpam-ldap/dbrootlogin boolean true" | debconf-set-selections
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# Create the SSSD configuration from template
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mkdir -p /etc/sssd
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cat files/sssd.conf.mo | mo > /etc/sssd/sssd.conf
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chmod 600 /etc/sssd/sssd.conf
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# Ensure nsswitch uses sss for passwd, group, and sudoers
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sed -i 's/^passwd:.*/passwd: files sss/' /etc/nsswitch.conf
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sed -i 's/^group:.*/group: files sss/' /etc/nsswitch.conf
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if ! grep -q "sudoers:" /etc/nsswitch.conf; then
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echo "sudoers: files sss" >> /etc/nsswitch.conf
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else
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# Debian
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echo "ldap-auth-config ldap-auth-config/ldapns/ldap-server string ldap://$ldap_host" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/bindpw string $ldap_bind_password" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/rootbindpw string $ldap_admin_password" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/dbrootlogin boolean true" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/dblogin boolean true" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/ldapns/ldap_version string 3" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/pam_password string md5" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/ldapns/base-dn string $ldap_base_dn" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/move-to-debconf boolean true" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/rootbinddn string $ldap_admin_dn" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/binddn string $ldap_bind_dn" | debconf-set-selections
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echo "ldap-auth-config ldap-auth-config/override boolean true" | debconf-set-selections
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sed -i 's/^sudoers:.*/sudoers: files sss/' /etc/nsswitch.conf
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fi
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# Install the requires packages for LDAP PAM telling apt to ignore any interactive options
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DEBIAN_FRONTEND=noninteractive apt install -y libnss-ldap libpam-ldap ldap-utils nscd curl
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# Configure the system to use LDAP for PAM. Some versions include `auth-client-config` and others dont.
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# `auth-client-config` requires python2.x, so support for it is dropping.
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if which auth-client-config >/dev/null; then
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auth-client-config -t nss -p lac_ldap
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else
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sed -i '/passwd/ s/$/ ldap/' /etc/nsswitch.conf
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sed -i '/group/ s/$/ ldap/' /etc/nsswitch.conf
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sed -e s/use_authtok//g -i /etc/pam.d/common-password
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fi
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pam-auth-update --enable ldap
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# Enable the system to create home directories for LDAP users who do not have one on first login
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# Enable home directory creation
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pam-auth-update --enable mkhomedir
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echo "session required pam_mkhomedir.so skel=/etc/skel umask=077" >> /etc/pam.d/common-session
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# Restart SSSD
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systemctl restart sssd
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systemctl enable sssd
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# Restart the Name Service cache daemon, unsure if this is required.
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systemctl restart nscd
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systemctl enable nscd
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# Apply LDAP group filter for PAM LDAP login
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# Different distros/versions read the filter from different places.
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PAM_LDAP_filter="
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pam_password_prohibit_message Please visit $sso_url to change your password.
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nss_base_group ou=Groups,$ldap_base_dn?one
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nss_schema rfc2307
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pam_filter &(|(memberof=cn=host_access,ou=Groups,$ldap_base_dn)(memberof=cn=host_`hostname`_access,ou=Groups,$ldap_base_dn))
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"
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if grep -qiE "^NAME=\"debian" /etc/os-release; then
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touch /etc/pam_ldap.conf
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echo "$PAM_LDAP_filter" >> /etc/pam_ldap.conf
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fi
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if [ -d /etc/ldap/ ]; then
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echo "$PAM_LDAP_filter" >> /etc/ldap/ldap.conf
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fi
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echo "$PAM_LDAP_filter" >> /etc/ldap.conf
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## Set up sudo-ldap
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export SUDO_FORCE_REMOVE=yes
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apt install -y sudo-ldap
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sudo_ldap_template="$(cat files/sudo-ldap.conf)"
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echo "$sudo_ldap_template" | mo > /etc/sudo-ldap.conf
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## Set up SSHkey via LDAP
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sudo_ldap_template="$(cat files/ldap-ssh-key.sh)"
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echo "$sudo_ldap_template" | mo > /usr/local/bin/ldap-ssh-key
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# --- Maintain Custom SSH Key Script ---
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cat files/ldap-ssh-key.sh | mo > /usr/local/bin/ldap-ssh-key
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chmod +x /usr/local/bin/ldap-ssh-key
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echo "AuthorizedKeysCommand /usr/local/bin/ldap-ssh-key" >> /etc/ssh/sshd_config
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echo "AuthorizedKeysCommandUser nobody" >> /etc/ssh/sshd_config
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service ssh restart
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# Update SSHD config if not already present
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if ! grep -q "AuthorizedKeysCommand /usr/local/bin/ldap-ssh-key" /etc/ssh/sshd_config; then
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echo "AuthorizedKeysCommand /usr/local/bin/ldap-ssh-key" >> /etc/ssh/sshd_config
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echo "AuthorizedKeysCommandUser nobody" >> /etc/ssh/sshd_config
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systemctl restart ssh
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fi
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# --- SSO Group Creation API Calls ---
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if [[ -v sso_token ]]; then
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echo "found token"
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curl "${sso_url}/api/group/" \
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-H "auth-token: ${sso_token}" \
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-H "content-type: application/json; charset=UTF-8" \
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--data-binary "{\"name\":\"host_${current_host}_access\",\"description\":\"Access for $current_host\"}"
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curl "${sso_url}/api/group/" \
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-H "auth-token: ${sso_token}" \
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-H "content-type: application/json; charset=UTF-8" \
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--data-binary "{\"name\":\"host_${current_host}_admin\",\"description\":\"sudo for $current_host\"}"
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fi
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echo "Registering host groups via API..."
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# (Existing curl logic remains here)
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fi
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Reference in New Issue
Block a user