ansible-sshd/tasks/install.yml

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---
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- name: OS is supported
meta: end_host
when:
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- not __sshd_os_supported|bool
- name: Install ssh packages
package:
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name: "{{ sshd_packages }}"
state: present
- name: Sysconfig configuration
template:
src: sysconfig.j2
dest: "/etc/sysconfig/sshd"
owner: "root"
group: "root"
mode: "600"
backup: "{{ sshd_backup }}"
when:
- sshd_sysconfig|bool
- __sshd_sysconfig_supports_use_strong_rng or __sshd_sysconfig_supports_crypto_policy
notify: reload_sshd
- name: Make sure hostkeys are available and have expected permissions
vars: &share_vars
# This mimics the macro body_option() in sshd_config.j2
# The explicit to_json filter is needed for Python 2 compatibility
__sshd_hostkeys_from_config: >-
{% if sshd_HostKey is defined %}
{{ sshd_HostKey | to_json }}
{% elif sshd['HostKey'] is defined %}
{{ sshd['HostKey'] | to_json }}
{% elif __sshd_defaults['HostKey'] is defined and not sshd_skip_defaults %}
{{ __sshd_defaults['HostKey'] | to_json }}
{% else %}
[]
{% endif %}
__sshd_verify_hostkeys: >-
{% if not sshd_verify_hostkeys %}
[]
{% elif sshd_verify_hostkeys == 'auto' %}
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{% if sshd_HostKey is string %}
[ {{ __sshd_hostkeys_from_config }} ]
{% else %}
{{ __sshd_hostkeys_from_config }}
{% endif %}
{% else %}
{{ sshd_verify_hostkeys | to_json }}
{% endif %}
block:
- name: Make sure hostkeys are available
shell: |
set -eu
if set -o | grep pipefail 2>&1 /dev/null ; then
set -o pipefail
fi
{% if sshd_sysconfig %}
source /etc/sysconfig/sshd
{% endif %}
ssh-keygen -q -t {{ item | regex_search('(rsa|dsa|ecdsa|ed25519)') }} -f {{ item }} -C '' -N ''
args:
creates: "{{ item }}"
loop: "{{ __sshd_verify_hostkeys | from_json | list }}"
changed_when: false
- name: Make sure private hostkeys have expected permissions
file:
path: "{{ item }}"
owner: "{{ sshd_hostkey_owner }}"
group: "{{ sshd_hostkey_group }}"
mode: "{{ sshd_hostkey_mode }}"
loop: "{{ __sshd_verify_hostkeys | from_json | list }}"
- name: Apply configuration
vars:
<<: *share_vars
block:
- name: Create a temporary hostkey for syntax verification if needed
tempfile:
state: directory
register: sshd_test_hostkey
changed_when: false
when:
- __sshd_hostkeys_from_config | from_json == []
- sshd_config_file != "/etc/ssh/sshd_config"
- name: Generate temporary hostkey
command: >
ssh-keygen -q -t rsa -f '{{ sshd_test_hostkey.path }}/rsa_key' -C '' -N ''
changed_when: false
when: sshd_test_hostkey.path is defined
- name: Make sure sshd runtime directory is present
file:
path: "{{ __sshd_runtime_directory }}"
state: directory
owner: root
group: root
mode: "{{ __sshd_runtime_directory_mode }}"
when:
- __sshd_runtime_directory | d(false) | bool
- name: Create the complete configuration file
template:
src: sshd_config_snippet.j2
dest: "{{ sshd_config_file }}"
owner: "{{ sshd_config_owner }}"
group: "{{ sshd_config_group }}"
mode: "{{ sshd_config_mode }}"
validate: >-
{% if sshd_test_hostkey is defined and sshd_test_hostkey.path is defined %}
{{ sshd_binary }} -t -f %s -h {{ sshd_test_hostkey.path }}/rsa_key
{% else %}
{{ sshd_binary }} -t -f %s
{% endif %}
backup: "{{ sshd_backup }}"
notify: reload_sshd
when: sshd_namespace_append is none
- name: Update configuration file snippet
blockinfile:
path: "{{ sshd_config_file }}"
owner: "{{ sshd_config_owner }}"
group: "{{ sshd_config_group }}"
mode: "{{ sshd_config_mode }}"
block: |
Match all
{{ lookup('template', 'sshd_config_snippet.j2') }}
create: yes
marker: "# {mark} sshd system role managed block: namespace {{ sshd_namespace_append }}"
validate: >-
{% if sshd_test_hostkey is defined and sshd_test_hostkey.path is defined %}
{{ sshd_binary }} -t -f %s -h {{ sshd_test_hostkey.path }}/rsa_key
{% else %}
{{ sshd_binary }} -t -f %s
{% endif %}
backup: "{{ sshd_backup }}"
notify: reload_sshd
when: sshd_namespace_append is not none
rescue:
- name: re-raise the error
fail:
msg: "{{ ansible_failed_result }}"
always:
- name: Remove temporary host keys
file:
path: "{{ sshd_test_hostkey.path }}"
state: absent
changed_when: false
when: sshd_test_hostkey.path is defined
- name: Install systemd service files
block:
- name: Install service unit file
template:
src: "{{ sshd_service_template_service }}"
dest: "/etc/systemd/system/{{ sshd_service }}.service"
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owner: root
group: root
mode: "0644"
notify: reload_sshd
- name: Install instanced service unit file
template:
src: "{{ sshd_service_template_at_service }}"
dest: "/etc/systemd/system/{{ sshd_service }}@.service"
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owner: root
group: root
mode: "0644"
notify: reload_sshd
- name: Install socket unit file
template:
src: "{{ sshd_service_template_socket }}"
dest: "/etc/systemd/system/{{ sshd_service }}.socket"
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owner: root
group: root
mode: "0644"
notify: reload_sshd
when: sshd_install_service|bool
- name: Service enabled and running
service:
name: "{{ sshd_service }}"
enabled: true
state: started
when:
- sshd_manage_service|bool
- ansible_virtualization_type|default(None) != 'docker'
- ansible_virtualization_type|default(None) != 'podman'
- ansible_virtualization_type|default(None) != 'containerd'
- ansible_virtualization_type|default(None) != 'VirtualPC' # for Github Actions
- ansible_connection != 'chroot'
# Due to ansible bug 21026, cannot use service module on RHEL 7
- name: Enable service in chroot
command: systemctl enable {{ sshd_service }} # noqa 303
when:
- ansible_connection == 'chroot'
- ansible_os_family == 'RedHat'
- ansible_distribution_major_version|int >= 7
- name: Register that this role has run
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set_fact:
sshd_has_run: true
when: sshd_has_run is not defined