forked from hmx/make_users
93 lines
2.4 KiB
Markdown
93 lines
2.4 KiB
Markdown
# How to use:
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## Adding a new user
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To create a ssh key pair on the new users PC.
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ssh-keygen -f new_floss_key
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The 'private' part should NEVER leave the user's PC.
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( It is a good idea to add a keyphrase to protect the key, if the client PC is ever stolen or hacked.)
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you only need: new_floss_key.pub
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open inventory/group_vars/all/users.yaml
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add a new entry:
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- username: alice
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groups:
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- ssh_login
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- floss_sudo
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- floss_admin
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ssh_keys:
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- ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAA... alice@laptop
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- replace this ^^^^ line, with new_floss_key.pub...
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deploy with:
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ansible-playbook site.yaml
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## delete user:
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open inventory/group_vars/all/users.yaml
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add:
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- username: alice
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__state: absent__
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and rerun:
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ansible-playbook site.yaml
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# Troubleshoot:
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## ssh:
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Check permissions in the users home. All files must be owned by the user,
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# sudo find ~alice -ls
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4 drwxr-x--- 6 alice alice 4096 Jul 15 16:59 /home/alice
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4 drwx------ 2 alice alice 4096 Jul 15 16:58 /home/alice/.ssh
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4 -rw------- 1 alice alice 709 Jul 15 16:58 /home/alice/.ssh/authorized_keys
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(only showing the important files ) Note, ssh may fail, if permission are too open, DONT do chmod 777 ...
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check groups: ( look for ssh_login )
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# id alice
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uid=1005(alice) gid=1007(alice) groups=1007(alice),27(sudo),1005(ssh_login),1006(admin),1010(floss_sudo),1011(floss_admin)
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check that sshd is running
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# sudo systemctl status ssh # (or ps -ef | grep sshd )
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and the config is ok:
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# sudo sshd -t ( no output is good )
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restart with:
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# sudo systemctl status ssh
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## sudo:
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check groups ( look for floss_sudo and/or floss_admin )
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check the sudoers file:
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# visudo -cf /etc/sudoers.d/floss-sudo
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/etc/sudoers.d/floss-sudo: parsed OK
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Try to redeploy, if it was changed.
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# About the role:
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# Users Ansible Role
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This role manages local Linux users, groups, SSH access, SSH keys, and sudo permissions.
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The role is designed to be multi-distribution and does not rely on distro-specific groups such as `sudo` or `wheel`.
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## Managed groups
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The role uses these groups:
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| Group | Purpose |
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|---|---|
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| `ssh_login` | Users in this group are allowed to log in via SSH |
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| `floss_sudo` | Users in this group get passwordless sudo/root access |
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| `floss_admin` | Users in this group get limited administrative commands |
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Additional groups can be added as required.
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License
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-------
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BSD
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Author Information
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------------------
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version 1: holger + chatgpt
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