Ansible inventory file to ssh config

This is a Python tool for updating the SSH config from the Ansible inventory file.

Dependencies

• ansible>=2.10.7
• sshconf==0.2.5

Install

[!WARNING] This project would install Ansible with the specified version metioned above, be careful that might conflict with the version you are using currently. You might need a separated env for this tool, for example:

$ mkdir foo;cd foo
foo$ pyenv virtualenv 3.11.4 bar;pyenv local bar
(bar)foo$

$ pip install ansible-inventory-to-ssh-config

From Github:

$ pip install git+https://github.com/yioda/ansible-inventory-to-ssh-config

Local install

$ git clone https://github.com/yioda/ansible-inventory-to-ssh-config.git
$ pip install .

Usage

$ aitsc -h # or ansible-inventory-to-ssh-config -h
usage: aitsc [-h] [-v] [-o OUTPUT] [-d] [-b] [-O] inventory_file

positional arguments:
  inventory_file        ansible inventory file

options:
  -h, --help            show this help message and exit
  -v, --version         show program version number and exit
  -o OUTPUT, --output OUTPUT
                        ssh config output path (default: ~/.ssh/config.ansible)
  -d, --dry-run         show new configurations without updating file
  -b, --with-backup     update with backup
  -O, --override        override whole config, this would remove those hosts undefined in playbook


# Update ~/.ssh/config.ansible from specified inventory file
$ aitsc $INVENTORY_FILE

# Update with backup
$ aitsc $INVENTORY_FILE --with-backup

# Output as a new file
$ aitsc $INVENTORY_FILE -o new_ssh_config

# Show content without output
$ aitsc $INVENTORY_FILE -d

# Override while config
$ aitsc $INVENTORY_FILE -O

Example

# Input (Inventory File)
$ cat hosts

[group_1]
node1 ansible_ssh_host=192.168.0.5
node2 ansible_ssh_host=192.168.0.6

[group_2]
node3 ansible_host=192.168.0.7 ansible_ssh_private_key_file=~/.ssh/id_rsa_for_ansible
node4 ansible_host=192.168.0.8 ansible_port=10422 ansible_user=foo

# Commnad
$ aitsc hosts -o newconfig
Inventory: hosts
Target: newconfig

# Output (SSH Config Format)
$ cat new_ssh_config

Host node1
  HostName 192.168.0.5


Host node2
  HostName 192.168.0.6


Host node3
  HostName 192.168.0.7
  IdentityFile ~/.ssh/id_rsa_for_ansible


Host node4
  HostName 192.168.0.8
  Port 10422
  User foo