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generate ssh-keys (backup and backup.pub) and add better explanation

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Frank Dornheim 2023-03-11 23:16:06 +01:00
parent dc79c0a287
commit 20f5a6f7b2
1 changed files with 16 additions and 11 deletions
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19
tasks/03_create_key.yml
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@ -1,7 +1,10 @@
--- ---
# In this Play an ssh key pair is created for login to the backup server and secure data transfer.
# If you select: "borgmatic_initialization_repo: true",
# the key will automaticly be added to the authorized_keys on the target system.
# We do not want the possibly existing key to be used/distributed,
# so a backup-specific (backup/backup.pub) one is created.
- name: Create ssh-key (if neeeded) for {{ borgbackup_user }} - name: Create ssh-key (if neeeded) for {{ borgbackup_user }}
when:
- backup_id_rsa is not defined or backup_id_rsa | length == 0
tags: tags:
- install_backup - install_backup
block: block:
@ -13,31 +16,33 @@
owner: "{{ borgbackup_user }}" owner: "{{ borgbackup_user }}"
group: "{{ borgbackup_group }}" group: "{{ borgbackup_group }}"
- name: Generate an OpenSSH keypair with the default values (4096 bits, rsa) - name: Generate an OpenSSH keypair
community.crypto.openssh_keypair: community.crypto.openssh_keypair:
path: "{{ backup_user_info.home }}/.ssh/id_rsa" path: "{{ backup_user_info.home }}/.ssh/backup"
mode: "0600" mode: "0600"
type: "{{ borg_ssh_key_type }}"
owner: "{{ borgbackup_user }}" owner: "{{ borgbackup_user }}"
group: "{{ borgbackup_group }}" group: "{{ borgbackup_group }}"
- name: Set key permission - name: Set key permission
ansible.builtin.file: ansible.builtin.file:
path: "{{ backup_user_info.home }}/.ssh/id_rsa.pub" path: "{{ backup_user_info.home }}/.ssh/backup.pub"
mode: "0644" mode: "0644"
owner: "{{ borgbackup_user }}" owner: "{{ borgbackup_user }}"
group: "{{ borgbackup_group }}" group: "{{ borgbackup_group }}"
- name: Read ssh key - name: Read ssh key
ansible.builtin.slurp: ansible.builtin.slurp:
src: "{{ backup_user_info.home }}/.ssh/id_rsa.pub" src: "{{ backup_user_info.home }}/.ssh/backup.pub"
register: backup_local_ssh_key register: backup_local_ssh_key
- name: Set authorized key taken from file - name: Set authorized key taken from file
when: when:
- borgmatic_initialization_repo is defined and borgmatic_initialization_repo - borgmatic_initialization_repo is defined and borgmatic_initialization_repo
ansible.posix.authorized_key: ansible.posix.authorized_key:
# example:
# borg_repository: m5vz9gp4@m5vz9gp4.repo.borgbase.com:repo # borg_repository: m5vz9gp4@m5vz9gp4.repo.borgbase.com:repo
# habe thee parts: "username"@"FQDN":"path/to/store/backup", specific: # have three parts: "username"@"FQDN":"path/to/store/backup", specific:
# a) user: m5vz9gp4 # a) user: m5vz9gp4
# b) fqdn: m5vz9gp4.repo.borgbase.co # b) fqdn: m5vz9gp4.repo.borgbase.co
# c) dir: repo # c) dir: repo