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Git push in automation

Configure ssh to proceed git push successfully on dispensable automation servers.

By default, ssh prompts message to ask if adding the current server host key into known_hosts when first time connecting a certain server. Read more here.

This could also cause git push failure in automation jobs on a new server/container, if your git repo is configured to push via SSH.

In jenkins job, it usually ends up with such error:

Host key verification failed.
fatal: Could not read from remote repository.

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

even the ssh_key is totally valid and has needed privilege.

So in pipeline, using withEnv to replace GIT_SSH_COMMAND like:

withEnv(['GIT_SSH_COMMAND=ssh -o StrictHostKeyChecking=no']) {
  sshagent(credentials: ['your-git-ssh-key']) {
    // Your git push command
    // sh "git push origin ${some_branch}"

Or set this environment var before your git command in shell:

$ GIT_SSH_COMMAND='ssh -o UserKnownHostsFile=/dev/null -o StrictHostKeyChecking=no' \
  git fetch origin --tags


Written on May 23, 2019