I have a docker container on Server 1 (image node:latest) and want to scp files that are stored in the docker container to a remote Server 2.
I have generated a separate ssh key (no passphrase for server 2 and registered it successfully). Normal login via terminal works:
ssh -i ss-s1-web firstname.lastname@example.org
The problem is now that within the docker container the following command fails:
$ scp -r -i access/ss-s1-web front root@domain:/home/deploy Host key verification failed. lost connection ERROR: Job failed: exit code 1
What is my misconception about this?
Why does the authentification works from normal terminal but results in a verification fail from within the container?