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https://github.com/buluma/ansible-role-openssh

Install and configure openssh on your system.
https://github.com/buluma/ansible-role-openssh

ansible ansible-role molecule openssh playbook tox

Last synced: 7 days ago
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Install and configure openssh on your system.

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# Ansible role [openssh](https://galaxy.ansible.com/ui/standalone/roles/buluma/openssh/documentation)

Install and configure openssh on your system.

|GitHub|Version|Issues|Pull Requests|Downloads|
|------|-------|------|-------------|---------|
|[![github](https://github.com/buluma/ansible-role-openssh/actions/workflows/molecule.yml/badge.svg)](https://github.com/buluma/ansible-role-openssh/actions/workflows/molecule.yml)|[![Version](https://img.shields.io/github/release/buluma/ansible-role-openssh.svg)](https://github.com/buluma/ansible-role-openssh/releases/)|[![Issues](https://img.shields.io/github/issues/buluma/ansible-role-openssh.svg)](https://github.com/buluma/ansible-role-openssh/issues/)|[![PullRequests](https://img.shields.io/github/issues-pr-closed-raw/buluma/ansible-role-openssh.svg)](https://github.com/buluma/ansible-role-openssh/pulls/)|[![Ansible Role](https://img.shields.io/ansible/role/d/buluma/openssh)](https://galaxy.ansible.com/ui/standalone/roles/buluma/openssh/documentation)|

## [Example Playbook](#example-playbook)

This example is taken from [`molecule/default/converge.yml`](https://github.com/buluma/ansible-role-openssh/blob/master/molecule/default/converge.yml) and is tested on each push, pull request and release.

```yaml
---
- name: Converge
hosts: all
become: true
gather_facts: true

roles:
- role: buluma.openssh
openssh_allow_users:
- root
openssh_allow_groups:
- root
```

The machine needs to be prepared. In CI this is done using [`molecule/default/prepare.yml`](https://github.com/buluma/ansible-role-openssh/blob/master/molecule/default/prepare.yml):

```yaml
---
- name: Prepare
hosts: all
become: true
gather_facts: false

roles:
- role: buluma.bootstrap
- role: buluma.selinux
```

Also see a [full explanation and example](https://buluma.github.io/how-to-use-these-roles.html) on how to use these roles.

## [Role Variables](#role-variables)

The default values for the variables are set in [`defaults/main.yml`](https://github.com/buluma/ansible-role-openssh/blob/master/defaults/main.yml):

```yaml
---
# defaults file for openssh

# The tcp port ssh should listen on.
openssh_port: 22

openssh_address_family: any

openssh_listen_addresses:
- "0.0.0.0"
- "::"

openssh_host_keys:
- /etc/ssh/ssh_host_rsa_key
- /etc/ssh/ssh_host_ecdsa_key
- /etc/ssh/ssh_host_ed25519_key

openssh_rekey_limit: default none

openssh_syslog_facility: AUTH

openssh_loglevel: INFO

openssh_login_grace_time: 2m
openssh_permit_root_login: "yes"
openssh_strict_modes: "yes"
openssh_max_auth_tries: 6
openssh_max_sessions: 10

openssh_pub_key_authentication: "yes"

openssh_authorized_key_file: ".ssh/authorized_keys"

openssh_authorized_prinicpals_file: none
openssh_authorized_keys_command: none
openssh_authorized_keys_command_user: nobody

openssh_host_based_authentication: "no"
openssh_ignore_user_known_hosts: "no"
openssh_ignore_rhosts: "yes"

openssh_permit_empty_passwords: "no"
openssh_password_authentication: "yes"

openssh_challenge_response_authentication: "no"

openssh_gssapi_authentication: "yes"
openssh_gssapi_cleanup_credentials: "no"
openssh_gssapi_strict_acceptor_check: "yes"
openssh_gssapi_key_exchange: "no"
openssh_gssaip_enable_k5_users: "no"

openssh_use_pam: "yes"

openssh_allow_agent_forwarding: "yes"
openssh_allow_tcp_forwarding: "yes"
openssh_gateway_ports: "no"
openssh_x11_forwarding: "yes"
openssh_x11_display_offset: 10
openssh_x11_use_localhost: "yes"
openssh_permit_tty: "yes"

openssh_print_motd: "no"

openssh_print_last_log: "yes"
openssh_tcp_keep_alive: "yes"
openssh_permit_user_environment: "no"
openssh_compression: delayed
openssh_client_alive_interval: 30
openssh_client_alive_count_max: 3
openssh_show_patch_level: "no"
openssh_use_dns: "no"
openssh_pid_file: /var/run/sshd.pid
openssh_max_startups: "10:30:100"
openssh_permit_tunnel: "no"
openssh_chroot_directory: none
openssh_version_addendum: none

openssh_banner: none

openssh_accept_envs:
- LANG
- LANGUAGE
- LC_ADDRESS
- LC_ALL
- LC_COLLATE
- LC_CTYPE
- LC_IDENTIFICATION
- LC_MEASUREMENT
- LC_MESSAGES
- LC_MONETARY
- LC_NAME
- LC_NUMERIC
- LC_PAPER
- LC_TELEPHONE
- LC_TIME
- XMODIFIERS

openssh_subsystem: sftp {{ openssh_sftp_server }}

# Specifies a file containing public keys of certificate authorities that are
# trusted to sign user certificates for authentication, or none to not use one.
openssh_trusted_user_ca_keys: none

# Restrict access to this (space separated list) of users or groups.
# For example: "openssh_allow_users: root my_user"
# openssh_allow_users:
# - root

# For example: "openssh_allow_groups: wheel my_group"
# openssh_allow_groups: wheel

# The key exchange methods that are used to generate per-connection keys
# openssh_kexalgorithms:
# - curve25519-sha256
# - [email protected]
# - ecdh-sha2-nistp256
# - ecdh-sha2-nistp384
# - ecdh-sha2-nistp521
# - diffie-hellman-group-exchange-sha256
# - diffie-hellman-group16-sha512
# - diffie-hellman-group18-sha512
# - diffie-hellman-group14-sha256

# The public key algorithms accepted for an SSH server to authenticate itself to an SSH client
# openssh_hostkey_algorithms:
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - ecdsa-sha2-nistp256
# - ecdsa-sha2-nistp384
# - ecdsa-sha2-nistp521
# - [email protected]
# - ssh-ed25519
# - [email protected]
# - rsa-sha2-512
# - rsa-sha2-256
# - ssh-rsa

# The ciphers to encrypt the connection
# openssh_ciphers:
# - [email protected]
# - aes128-ctr
# - aes192-ctr
# - aes256-ctr
# - [email protected]
# - [email protected]

# The message authentication codes used to detect traffic modification
# openssh_macs:
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - [email protected]
# - hmac-sha2-256
# - hmac-sha2-512
# - hmac-sha1
# openssh_allow_groups:
# - wheel
```

## [Requirements](#requirements)

- pip packages listed in [requirements.txt](https://github.com/buluma/ansible-role-openssh/blob/master/requirements.txt).

## [State of used roles](#state-of-used-roles)

The following roles are used to prepare a system. You can prepare your system in another way.

| Requirement | GitHub | Version |
|-------------|--------|--------|
|[buluma.bootstrap](https://galaxy.ansible.com/buluma/bootstrap)|[![Ansible Molecule](https://github.com/buluma/ansible-role-bootstrap/actions/workflows/molecule.yml/badge.svg)](https://github.com/buluma/ansible-role-bootstrap/actions/workflows/molecule.yml)|[![Version](https://img.shields.io/github/release/buluma/ansible-role-bootstrap.svg)](https://github.com/shadowwalker/ansible-role-bootstrap)|
|[buluma.selinux](https://galaxy.ansible.com/buluma/selinux)|[![Ansible Molecule](https://github.com/buluma/ansible-role-selinux/actions/workflows/molecule.yml/badge.svg)](https://github.com/buluma/ansible-role-selinux/actions/workflows/molecule.yml)|[![Version](https://img.shields.io/github/release/buluma/ansible-role-selinux.svg)](https://github.com/shadowwalker/ansible-role-selinux)|

## [Context](#context)

This role is a part of many compatible roles. Have a look at [the documentation of these roles](https://buluma.github.io/) for further information.

Here is an overview of related roles:

![dependencies](https://raw.githubusercontent.com/buluma/ansible-role-openssh/png/requirements.png "Dependencies")

## [Compatibility](#compatibility)

This role has been tested on these [container images](https://hub.docker.com/u/buluma):

|container|tags|
|---------|----|
|[Alpine](https://hub.docker.com/r/buluma/alpine)|all|
|[Amazon](https://hub.docker.com/r/buluma/amazonlinux)|Candidate|
|[EL](https://hub.docker.com/r/buluma/enterpriselinux)|8, 9|
|[Debian](https://hub.docker.com/r/buluma/debian)|all|
|[Fedora](https://hub.docker.com/r/buluma/fedora)|all|
|[opensuse](https://hub.docker.com/r/buluma/opensuse)|all|
|[Ubuntu](https://hub.docker.com/r/buluma/ubuntu)|focal, jammy, bionic|

The minimum version of Ansible required is 2.12, tests have been done to:

- The previous version.
- The current version.
- The development version.

If you find issues, please register them in [GitHub](https://github.com/buluma/ansible-role-openssh/issues)

## [Changelog](#changelog)

[Role History](https://github.com/buluma/ansible-role-openssh/blob/master/CHANGELOG.md)

## [License](#license)

[Apache-2.0](https://github.com/buluma/ansible-role-openssh/blob/master/LICENSE)

## [Author Information](#author-information)

[Shadow Walker](https://buluma.github.io/)