pipeline {
  agent {
    kubernetes {
      label '********-' + UUID.randomUUID().toString()
      yaml """
apiVersion: v1
kind: Pod
spec:
  securityContext:
    runAsUser: 0
    fsGroup: 0
  containers:
  - name: aws
    image: amazon/aws-cli
    tty: true
    command: ["cat"]
  - name: docker
    image: docker:stable-git
    tty: true
    command: ["cat"]
    volumeMounts:
    - mountPath: /var/run/docker.sock
      name: docker-socket
  volumes:
  - name: docker-socket
    hostPath:
      path: /var/run/docker.sock
"""
    }
  }

  parameters {
    string(name: 'SOURCE_BRANCH', defaultValue: '*********', description: '**********')
  }

  environment {
    DEPLOY_SOURCE         = "git@bitbucket.org:***********/************.git"
  }

  stages {
    stage('SSH Prep') {
      steps {
        container('docker') {
          sh 'mkdir -p ~/.ssh && chmod 700 ~/.ssh'
          sh 'for i in 1 2 3 4 5; do ssh-keyscan -t rsa bitbucket.org >> ~/.ssh/known_hosts && break; done'
          sh 'ssh-keyscan -t rsa ************* >> ~/.ssh/known_hosts'
        }
      }
    }
    stage('Clone Source') {
      steps {
        container('docker') {
          sshagent (credentials: ['id_rsa_to_bitbucket_org']) {
            sh 'git clone -b $SOURCE_BRANCH $DEPLOY_SOURCE source'
          }
        }
      }
    }
  }
}

[Pipeline] container
[Pipeline] {
[Pipeline] sshagent
[ssh-agent] Using credentials ******** (******** Private Key (for Git to Bitbucket Server).)
[ssh-agent] Looking for ssh-agent implementation...
ERROR: Timeout after 1 minutes
[ssh-agent]   Exec ssh-agent (binary ssh-agent on a remote machine)
Executing sh script inside container docker of pod ********-ca487127-2c12-4fa4-bef6-db46df3736ec-gvnmh-w1927
Executing command: "ssh-agent" 
exit

: No such file or directory
sh: exit
: not found
ERROR: Timeout after 1 minutes
[ssh-agent] FATAL: Could not find a suitable ssh-agent provider
[ssh-agent] Diagnostic report
[ssh-agent] * Exec ssh-agent (binary ssh-agent on a remote machine)
[ssh-agent]     java.lang.StringIndexOutOfBoundsException: begin 13, end -1, length 50

[ssh-agent]     	at java.base/java.lang.String.checkBoundsBeginEnd(String.java:3319)

[ssh-agent]     	at java.base/java.lang.String.substring(String.java:1874)

[ssh-agent]     	at com.cloudbees.jenkins.plugins.sshagent.exec.ExecRemoteAgent.getAgentValue(ExecRemoteAgent.java:156)