Authentication with ssh private key ( No provider available)

[#1]

Hello,

in order to install a cluster using the CM-Wizard with the private key method i get the following error message:

 No provider available for Unknown key file

I used a custom user and select the respective .ppk file.

If i logged in via ssh from a remote machine with the same credentials, it works.

Do you have any ideas or solution?

Thanks and Regards,

 butkiz

[#2 · Accepted solution]

ppk refers to Putty's custom format. You should use the key format used by
OpenSSH. there are tools to convert between these two formats.
Alternatively, you can use the ssh-keygen tool to create a fresh pair of
keys

[#3]

Hi Gautam

I am using a pem file but still getting the same error.

I also tried to create a open-ssh supported format by using

ssh-keygen -f my.pem -y > my.pub

Could you please help with the correct format that should be used.

Regards,

Harman

[#4]

I am also facing the same problem, m trying to do this in docker containers. I also tried giving private key (id_rsa) but then my browser goes to a freezed state (Pic given below).

It would be really helpful if any one could provide pointers.

[#5]

I'm experiencing this error as well when using the python CM API and calling the host_install command while providing the id_rsa key from the server I'm invoking the python script from.  I tried copying the id_rsa file to the CM server /root/.ssh directory as well, but that didn't help.  Where should the private key be located when referencing from the host_install command in the python CM API?

[#6]

It looks like I solved the issue - it seems the python CM API has now been changed for the host_install command. Before it was taking a file name as the private key and is now expecting it to be a string variable

[#7]

TylerHale - can you expand pls on how you passed in the private key?

I have tried:
cmd = cm.host_install(host_username, host_list, private_key="/home/ec2-user/.ssh/id_rsa", cm_repo_url=cm_repo_url)

I have also tried passing the private key as a string variable. i,e:
cmd = cm.host_install(host_username, host_list, private_key="--begin rsa--.............--end-rsa key--", cm_repo_url=cm_repo_url)

thanks

[#8]

bulmanp - The private_key parameter should be the contents of the private key file (in your case, the 2nd option should have worked).  Here is the working code I use :

f = open("/root/.ssh/id_rsa", "r")
id_rsa = f.read()
#print id_rsa
f.close()

#passwordless certificate login
apicommand = cm.host_install(user_name="root",
                             private_key=id_rsa,
                             host_names=hostIds,
                             cm_repo_url=cm_repo_url,
                             java_install_strategy="NONE",
                             unlimited_jce=True).wait()