229 lines
6.6 KiB
YAML
229 lines
6.6 KiB
YAML
## Install and configure krb5-kdc-ldap (if not done yet),
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## run most tasks only on krb5-kdc-ldap installation.
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---
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- name: check that domain name is available
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fail: msg="The machine's domain must not be empty."
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when: ansible_domain | length == 0
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- name: check if krb5kdc is already there
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stat: path=/usr/sbin/krb5kdc
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register: krb5kdc
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- name: prepare krb5.conf
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template:
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src: krb5.conf.j2
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dest: /etc/krb5.conf
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mode: 0644
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- name: make sure krb5kdc exists
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file:
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path: /etc/krb5kdc
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state: directory
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recurse: true
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mode: 0755
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- name: prepare kdc.conf
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template:
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src: kdc.conf.j2
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dest: /etc/krb5kdc/kdc.conf
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mode: 0644
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- name: prepare kadm5.acl
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template:
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src: kadm5.acl.j2
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dest: /etc/krb5kdc/kadm5.acl
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mode: 0644
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notify: "restart krb5-admin-server"
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- name: install krb5-kdc-ldap and krb5-admin-server
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apt:
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name:
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- krb5-kdc-ldap
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- krb5-admin-server
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state: latest # noqa package-latest
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- name: prepare kerberos.openldap.ldif
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shell: gunzip -c /usr/share/doc/krb5-kdc-ldap/kerberos.openldap.ldif.gz > /etc/ldap/schema/kerberos.openldap.ldif
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args:
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creates: /etc/ldap/schema/kerberos.openldap.ldif
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- name: activate kerberos.openldap.ldif schema
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command: ldapadd -Y EXTERNAL -H ldapi:/// -f /etc/ldap/schema/kerberos.openldap.ldif
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when: not krb5kdc.stat.exists
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- name: make sure we have a kerberos container
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ldap_entry:
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dn: "cn=kerberos,{{ basedn }}"
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objectClass: krbContainer
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bind_dn: "cn=admin,{{ basedn }}"
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bind_pw: "{{ ldap_admin_pwd['content'] | b64decode | replace('\n', '') }}"
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- name: make sure we have a kdc object
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ldap_entry:
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dn: "cn=kdc,cn=kerberos,{{ basedn }}"
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objectClass:
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- organizationalRole
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- simpleSecurityObject
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attributes:
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userPassword: "{{ kdc_service_pwd }}"
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bind_dn: "cn=admin,{{ basedn }}"
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bind_pw: "{{ ldap_admin_pwd['content'] | b64decode | replace('\n', '') }}"
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- name: make sure we have a kadmin object
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ldap_entry:
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dn: "cn=kadmin,cn=kerberos,{{ basedn }}"
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objectClass:
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- organizationalRole
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- simpleSecurityObject
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attributes:
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userPassword: "{{ kadmin_service_pwd }}"
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bind_dn: "cn=admin,{{ basedn }}"
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bind_pw: "{{ ldap_admin_pwd['content'] | b64decode | replace('\n', '') }}"
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- name: modify ACLs to account for KDC
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ldap_attr:
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dn: "olcDatabase={1}mdb,cn=config"
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name: olcAccess
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values:
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- >-
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to attrs=userPassword
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by self write
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by anonymous auth
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by * none
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- >-
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to attrs=shadowLastChange
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by self write
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by * read
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- >-
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to dn.subtree="cn=kerberos,{{ basedn }}"
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by dn.exact="cn=kdc,cn=kerberos,{{ basedn }}" read
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by dn.exact="cn=kadmin,cn=kerberos,{{ basedn }}" write
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by * none
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- >-
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to attrs=krbPrincipalName,krbLastPwdChange,krbPrincipalKey,krbExtraData
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by dn.exact="cn=kdc,cn=kerberos,{{ basedn }}" read
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by dn.exact="cn=kadmin,cn=kerberos,{{ basedn }}" write
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by self read
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by * auth
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- >-
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to *
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by dn.exact="cn=kadmin,cn=kerberos,{{ basedn }}" write
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by * read
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state: exact
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when: not krb5kdc.stat.exists
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- name: add KDC indexes to LDAP
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ldap_attr:
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dn: "olcDatabase={1}mdb,cn=config"
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name: olcDbIndex
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values:
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- objectClass eq
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- cn,uid eq
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- uidNumber,gidNumber eq
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- member,memberUid eq
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- krbPrincipalName pres,sub,eq
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state: exact
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when: not krb5kdc.stat.exists
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- name: add AuthzRegexp to map access via kerberos/GSSAPI
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ldap_attr:
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dn: "cn=config"
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name: olcAuthzRegexp
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values:
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- "{0}uid=([^,]*),cn=gssapi,cn=auth uid=$1,ou=people,{{ basedn }}"
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- "{1}uid=([^,]*),cn=gs2-iakerb,cn=auth uid=$1,ou=people,{{ basedn }}"
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state: exact
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- name: prepare password for kdc # noqa risky-shell-pipe
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shell: echo "cn=kdc,cn=kerberos,{{ basedn }}#{HEX}$(echo -n {{ kdc_service_pwd }} | xxd -g0 -ps -c 256 | sed 's/0a$//')" > /etc/krb5kdc/service.keyfile
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no_log: true
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when: not krb5kdc.stat.exists
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- name: prepare password for kadmin # noqa risky-shell-pipe
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shell: echo "cn=kadmin,cn=kerberos,{{ basedn }}#{HEX}$(echo -n {{ kadmin_service_pwd }} | xxd -g0 -ps -c 256 | sed 's/0a$//')" >> /etc/krb5kdc/service.keyfile
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no_log: true
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when: not krb5kdc.stat.exists
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- name: dump kdc master password
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shell: echo -n "{{ kdc_master_pwd }}" > "{{ kdc_master_pwd_file }}" ; chmod 0600 "{{ kdc_master_pwd_file }}"
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no_log: true
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when: not krb5kdc.stat.exists
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- name: initialize KDC
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command:
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>-
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kdb5_ldap_util
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-D cn=admin,"{{ basedn }}"
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-w "{{ ldap_admin_pwd['content'] | b64decode | replace('\n', '') }}"
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-H ldapi:///
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create -s -subtrees "{{ basedn }}"
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-P "{{ kdc_master_pwd }}"
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-r "{{ ansible_domain | upper }}"
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no_log: true
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notify: "restart krb5-kdc"
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when: not krb5kdc.stat.exists
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- name: add root/admin as kadmin
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command: kadmin.local -q 'addprinc -pw "{{ kadmin_pwd }}" root/admin'
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when: not krb5kdc.stat.exists
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- name: dump kadmin password
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shell: echo -n "{{ kadmin_pwd }}" > "{{ kadmin_pwd_file }}" ; chmod 0600 "{{ kadmin_pwd_file }}"
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no_log: true
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when: not krb5kdc.stat.exists
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- name: add default policy to silence warning when using kadmin
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command: kadmin.local -q "add_policy default"
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when: not krb5kdc.stat.exists
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- name: create machine principals
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command: kadmin.local -q 'addprinc -randkey {{ item }}/{{ ansible_hostname }}.{{ ansible_domain }}'
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with_items:
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- host
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- ldap
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- HTTP
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when: not krb5kdc.stat.exists
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- name: add principal to the default keytab
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command: kadmin.local -q 'ktadd {{ item }}/{{ ansible_hostname }}.{{ ansible_domain }}'
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with_items:
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- host
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- ldap
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- HTTP
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when: not krb5kdc.stat.exists
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- name: allow slapd to read the keytab
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file:
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path: /etc/krb5.keytab
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owner: root
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group: openldap
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mode: '0640'
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notify: restart slapd
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- name: "make 'kerberos' an alias hostname resolvable from the LAN"
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replace:
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path: /etc/hosts
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regexp: "^({{ ipaddr_lan | ipaddr('address') }}\\s.+)$"
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replace: '\1 kerberos'
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when: not krb5kdc.stat.exists
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########################
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- name: kerberize dummy user foo
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command: kadmin.local -q 'add_principal -pw "{{ foo_pwd }}" -x dn="uid=foo,ou=people,{{ basedn }}" foo'
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register: kerberize_result
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changed_when: kerberize_result.stderr is not search('already exists while creating')
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no_log: true
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when: foo_pwd is defined and foo_pwd | length > 0
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- name: allow services in firewalld
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firewalld:
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zone: internal
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service: "{{ item }}"
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permanent: true
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immediate: true
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state: enabled
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with_items:
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- kerberos
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- kadmin
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- kpasswd
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