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#! /usr/bin/env bash
set -o nounset -o errexit -o pipefail
usage () {
cat << EOM
Usage:
$( basename $0 )
$( basename $0 )
| -c | --cred-id | -l | --labels | -u | --user-id | -p | --password | -h | --help ]
Options:
-j, --jenkins-url Jenkins base URL.
-d, --desc Description.
-n, --node-name Node name.
-s, --slave-home Remote FS home.
-e, --executors No. of executors. Defaults to 1.
-sh, --ssh-host SSH host.
-sp, --ssh-port SSH port. Defaults to 22.
-c, --cred-id Credentials Id to use for SSH authentication.
-l, --labels Labels.
-u, --user-id Username for Jenkins authentication (and crumb retrieval).
-p, --password Password (or token) for Jenkins authentication (and crumb retrieval).
-h, --help Show usage.
Example:
$( basename $0 )
EOM
exit 1
}
# Handle opts
[[ $# == 0 ]] && usage
while [[ $# > 0 ]]
do
key=" $1 "
case ${key} in
-j|--jenkins-url)
JENKINS_URL=" ${2} "
shift
;;
-n|--node-name)
NODE_NAME=" ${2} "
shift
;;
-d|--desc)
DESC=" ${2} "
shift
;;
-s|--slave-home)
NODE_SLAVE_HOME=" ${2} "
shift
;;
-e|--executors)
EXECUTORS=" ${2} "
shift
;;
-sh|--ssh-host)
SSH_HOST=" ${2} "
shift
;;
-sp|--ssh-port)
SSH_PORT=" ${2} "
shift
;;
-c|--cred-id)
CRED_ID=" ${2} "
shift
;;
-l|--labels)
LABELS=" ${2} "
shift
;;
-u|--user-id)
USER_ID=" ${2} "
shift
;;
-p|--password)
PASSWORD=" ${2} "
shift
;;
-h|--help)
usage
;;
* )
echo " Error: Unknown arg: [${key} ]"
usage
;;
esac
shift
done
# Defaults
EXECUTORS=${EXECUTORS:- 1}
SSH_PORT=${SSH_PORT:- 22}
DESC=${DESC:- " "
# Print values
printf " \nSelected values:\n"
_body=" "
_body=" ${_body} \n JENKINS_URL \t: ${JENKINS_URL} "
_body=" ${_body} \n NODE_NAME \t: ${NODE_NAME} "
_body=" ${_body} \n DESC \t: ${DESC} "
_body=" ${_body} \n NODE_SLAVE_HOME \t: ${NODE_SLAVE_HOME} "
_body=" ${_body} \n EXECUTORS \t: ${EXECUTORS} "
_body=" ${_body} \n SSH_HOST \t: ${SSH_HOST} "
_body=" ${_body} \n SSH_PORT \t: ${SSH_PORT} "
_body=" ${_body} \n CRED_ID \t: ${CRED_ID} "
_body=" ${_body} \n LABELS \t: ${LABELS} "
_body=" ${_body} \n USER_ID \t: ${USER_ID} "
_body=" ${_body} \n PASSWORD \t: ${PASSWORD} "
echo " $( printf " ${_body} " ) " | column -s $' \t ' 2> /dev/null
# Confirm
read -r -p " Are you sure? [y/N]"
case ${response} in
[yY][eE][sS]|[yY])
printf " \nConfirmed.\n"
;;
* )
printf " \nAborting!\n"
exit 0
;;
esac
# Check crumb
echo " Checking for CSRF..."
CRUMB_HEADER=" "
CRUMB=$( curl --fail -0 -u " ${USER_ID} :${PASSWORD} " ' ' ${JENKINS_URL} ' /crumbIssuer/api/xml?xpath=concat(//crumbRequestField,":",//crumb)' 2> /dev/null || echo " N/A" )
if [[ ${CRUMB} != " N/A" ; then
echo " CSRF Enabled."
CRUMB_HEADER=" -H \" ${CRUMB} \" "
else
echo " CSRF not enabled."
fi
# Create node (doCreateItem)
RESPONSE=$(curl -L -s -o /dev/null -w "%{http_code}" -u "${USER_ID}:${PASSWORD}" -H "Content-Type:application/x-www-form-urlencoded" -H "$CRUMB" -X POST -d 'json={"name": "'"$NODE_NAME"'", "nodeDescription": "'"$DESC"'", "numExecutors": "'"$EXECUTORS"'", "remoteFS": "'"$NODE_SLAVE_HOME"'", "labelString": "'"$LABELS"'", "mode": "NORMAL", "": ["hudson.plugins.sshslaves.SSHLauncher", "hudson.slaves.RetentionStrategy$Always"], "launcher": {"stapler-class": "hudson.plugins.sshslaves.SSHLauncher", "$class": "hudson.plugins.sshslaves.SSHLauncher", "host": "'"$SSH_HOST"'", "credentialsId": "'"$CRED_ID"'", "port": "'"$SSH_PORT"'", "javaPath": "", "jvmOptions": "", "prefixStartSlaveCmd": "", "suffixStartSlaveCmd": "", "launchTimeoutSeconds": "", "maxNumRetries": "", "retryWaitTime": ""}, "retentionStrategy": {"stapler-class": "hudson.slaves.RetentionStrategy$Always", "$class": "hudson.slaves.RetentionStrategy$Always"}, "nodeProperties": {"stapler-class-bag": "true"}, "type": "hudson.slaves.DumbSlave", "crumb": "'"$CRUMB"'"}' "http://localhost:8080/computer/doCreateItem?name=${NODE_NAME}&type=hudson.slaves.DumbSlave")
if [[ ${RESPONSE} == " 200" ; then
echo " SUCCESS"
else
echo " ERROR: Failed to create node. Response code: [${RESPONSE} ]"
exit 1
fi
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