Upgrade Rancher Cluster with Amazon EC2 Run Command

document.json

{
    "schemaVersion":"1.2",
    "description":"Upgrade Rancher cluster to specified version",
    "parameters":{
        "version":{
            "type":"String",
            "description":"(Required) The version to upgrade to.",
            "maxChars":4096
        }
    },
    "runtimeConfig":{
        "aws:runShellScript":{
            "properties":[
                {
                    "runCommand": [
                        "docker pull rancher/server:{{version}}",
                        "docker rm -f $(sudo docker ps -a | grep rancher | awk {'print $1'}) ",
                        "/var/lib/rancher/bin/rancher-ha-start.sh rancher/server:{{version}}"
                    ]
                }
            ]
        }
    }
}