Bitbucket Pipelines SSH credentials do not work

[ArtuOn]

I followed this instruction

https://confluence.atlassian.com/bitbucket/use-ssh-keys-in-bitbucket-
pipelines-847452940.html

and I made:

1. I created SSH key using in Settings -> Pipelines - SSH Keys.
2. I copied this public key to ~/.ssh/authorized_keys on the remote host.
3. I added the IP of my server toKnown hosts.

I have such bitbucket-pipelines.yml:

image: php:7.1.1

pipelines:
  custom: # Pipelines that are triggered manually
    deployment-to-prod:
      - step:
          script:
            - apt-get update && apt-get install -y unzip
            - apt-get -y install openssh-server
            - ssh webmaster@XXX.XXX.XX.XX sh /home/webmaster/scripts/update_live.sh

When I run this pipeline I have:

apt-get update && apt-get install -y unzip15s

apt-get -y install openssh-server2m 43s

ssh webmaster@XXX.XXX.XX.XX sh /home/webmaster/scripts/update_live.sh<1s

+ ssh webmaster@XXX.XXX.XX.XX sh /home/webmaster/scripts/update_live.sh 
Permission denied, please try again.
Permission denied, please try again.
Permission denied (public key, password).

My questions:

1. Why my Docker machine cannot establish SSH connection (Permission denied)?
2. Do I really have to install openssh-server? Without it 'ssh' command cannot be recognized (No such file or directory).

[Bjørn Ole]

I have the same issue. Where you able to solve this problem?

[Bhaskarreddy]

Have you resolved this Issue?