Git clone with SSH fails on Alpine linux

[Ward Loos]

I'm trying to clone a second repository with deployment config in my pipeline:

script: 
  - git clone git@bitbucket.org:<team>/<repo>.git /<repo>

I followed the steps listed here: https://confluence.atlassian.com/bitbucket/use-ssh-keys-in-bitbucket-pipelines-847452940.html

This works fine when I use a Debian based image (google/cloud-sdk). 

However, when I use an Alpine based image this fails. This is a private image based on devth/helm, I added ssh with:

RUN apk add --no-cache openssh-client

Error:

+ git clone git@bitbucket.org:<team>/<repo>.git /<repo>
Cloning into '/<repo>'...
Host key verification failed.
fatal: Could not read from remote repository.

Please make sure you have the correct access rights
and the repository exists.

 Do I need extra steps to get this to work on Alpine?

[Ward Loos · Accepted solution]

Found that devth/helm changes HOME which seems to interfere with the ssh config. Changed image to google/cloud-sdk:alpine and it works.