Airflow bastion ssh config

A sample config for connecting to Airflow UIs using a bastion host in the middle.

ssh config :

Host dev-bastion
 HostName 10.69.7.20
 User rchamarthi
 PreferredAuthentications publickey
 IdentityFile ~/.ssh/rchamarthi.pem

Host dev-airflow-rchamarthi
 HostName 10.69.1.245
 User rchamarthi
 PreferredAuthentications publickey
 IdentityFile ~/.ssh/rchamarthi.pem
 ServerAliveInterval 15
 TCPKeepAlive yes
 Protocol 2,1
 # redis
 LocalForward 16379 localhost:6379
 # airflow ui
 LocalForward 18081 localhost:8081
 # airflow ui rchamart
 LocalForward 18082 localhost:8082
 # flower ui
 LocalForward 15555 localhost:5555
 ProxyCommand ssh dev-bastion -W %h:%p

If you are on windows.

convert your pem file to ppk using putty gen. Load pem and then click “save private key” an save the file as .ppk

Don’t forget to save your session after you load your key.
Click yes to continue to cache the key.

Now the actual server that you want to connect to by hopping on to Bastion 👍

C:\Program Files\PuTTY\plink.exe” dev-bastion -agent -nc %host:%port