Inheritance isn't working

[davidpelaez]

I tried using inheritance but I cannot make it work. I even made the file the smallest possible, here's what I have in ~/.ssh/assh.yml

hosts:

  common:
    IdentityFile: ~/.ssh/production.pem
    HostName: 1.2.3.4

  aloha:
    User: ubuntu
    Inherits:
    - common

aash build:

# ssh config generated by advanced-ssh-config

# host-based configuration
Host aloha
  User ubuntu

Host common
  HostName 1.2.3.4
  IdentityFile ~/.ssh/production.pem

# global configuration
Host *
  ProxyCommand assh proxy %h %p

and ssh aloha results in ssh: Could not resolve hostname aloha: nodename nor servname provided, or not known

I checked for syntactical error in the yaml file but I cannot see anything, is this a bug or an error of mine? :(

[moul]

Actually, the inheritance isn't exported to ~/.ssh/config, it's only used when proxying to an host

I will try to export inheritances to ~/.ssh/config, I just need to benchmark it before :)

[davidpelaez]

It's ok that it's not exported, but the proxy doesn't seem to be using it either because I don't reach the connection point. Or is it because of the lack of a HostName that I never reaches the proxy? Is there a current way you would recommend to make the sample config work?

[moul]

Using the latest commit, you can see the computed host:

$ assh -D proxy test-bbb
DEBU[0000] Loading config file '/Users/moul/.ssh/assh.yml'
DEBU[0000] Loading config file '/Users/moul/.ssh/assh.d/hosts.yml'
DEBU[0000] Loading config file '/Users/moul/.ssh/assh.d/test.yml'
INFO[0000] Host test-bbb
INFO[0000]   ControlMaster auto
INFO[0000]   ControlPath ~/tmp/.ssh/cm/%h-%p-%r.sock
INFO[0000]   ControlPersist yes
INFO[0000]   HostName 1.2.3.4
INFO[0000]   IdentityFile ~/.ssh/id_rsa
INFO[0000]   Port 22
INFO[0000]   PreferredAuthentications hostbased,publickey,keyboard-interactive,password
INFO[0000]   PubkeyAuthentication yes
INFO[0000]   ServerAliveCountMax 5
INFO[0000]   TCPKeepAlive yes
INFO[0000]   User ubuntu
INFO[0000]   VisualHostKey yes
DEBU[0000] Writing SSH config file to "/Users/moul/.ssh/config"
DEBU[0000] Trying gateways: [direct]
DEBU[0000] Connecting to 1.2.3.4:22

hosts:
  test-aaa:
    HostName: 1.2.3.4
    IdentityFile: ~/.ssh/id_rsa

  test-bbb:
    User: ubuntu
    Inherits:
    - test-aaa

defaults:
  ControlMaster: auto
  ControlPath: ~/tmp/.ssh/cm/%h-%p-%r.sock
  ControlPersist: yes
  EscapeChar: ~
  GSSAPIKeyExchange: no
  Gateways:
    - direct
  IdentifyFile: ~/.ssh/id_rsa
  Port: 22
  PreferredAuthentications: hostbased,publickey,keyboard-interactive,password
  PubkeyAuthentication: yes
  ServerAliveCountMax: 5
  ServerAliveInterval: 30
  TCPKeepAlive: yes
  User: root
  VisualHostKey: yes

Haha, I just discovered some new ignored keys because of case sensitivity :)

However, inheritance seams to works quite well, can you run: assh -D proxy aloha ?

[moul]

Hum, I found the issue, the inheritance correctly work in assh, however, some settings are needed in the .ssh/config file, i.e: User, IdentityFile, basically everything not related to HostName, Port, Gateway, etc

So I will finally need to compute each host before saving the ~/.ssh/config file :)