$ echo "$SSH_PRIVATE_KEY" | tr -d '\r' | ssh-add -
Identity added: (stdin) (luoqi_14@126.com)
$ mkdir -p ~/.ssh
$ chmod 700 ~/.ssh
$ echo "$SSH_KNOWN_HOSTS" > ~/.ssh/known_hosts
$ chmod 644 ~/.ssh/known_hosts
$ ssh -p $SSH_PORT $SSH_USER@$SSH_HOST " # collapsed multi-line command
ssh: connect to host 47.251.104.47 port 19822: Connection timed out
section_end:1756462976:build_script
section_start:1756462976:after_script
section_end:1756462976:after_script
ERROR: Job failed: exit status 1