Introduction

• The JS7 offers to perform any operation on orders, workflows, jobs and related objects by the JS7 - REST Web Service API.
  • Note that any operation available with the JOC Cockpit GUI makes use of the REST Web Service API.
  • For detailed information see the Technical Documentation of the REST Web Service API.
• The REST Web Service API can be accessed from Shell utilities such as curl.
• In addition, a PowerShell module is available for simplified access to the REST Web Service API. This is described in the JS7 - PowerShell Module article.

The Job Resource Update Script introduced in this article can be used to update variables in JS7 - Job Resources.

The script can be considered an alternative for use of the respective JS7 PowerShell cmdlets, see JS7 - How to make a global Business Date variable available to jobs.

Job Resource Update Script

The Job Resource Update Script is provided for download and can be used to automate updates of job resources.

• The script is available for Linux and MacOS® using bash, dash, ksh and zsh POSIX-compatible shells.
• The script terminates with exit code 0 to signal success, with exit code 1 for command line argument errors and with exit code 4 for non-recoverable errors.
• The script is intended as a baseline example for customization by JS7 users and by SOS within the scope of professional services.
  

Prerequisites

The Job Resource Update Script makes use of the curl utility.

The Job Resource Update Script requires the jq utility to be available from the operating system. 

jq is ships with the MIT license, see https://opensource.org/licenses/MIT.

Download

The Job Resource Update Script is available from the Encryption Package in the Utilities section of: JS7 - Download

Usage

Invoking the script without arguments displays the usage clause:

Usage: js7_set_job_resource.sh [Options] [Switches]

  Options:
    --url=<url>                   | required: JOC Cockpit URL
    --controller-id=<identifier>  | required: Controller ID
    --user=<account>              | required: JOC Cockpit user account
    --password=<password>         | optional: JOC Cockpit password or Client Keystore password
    --job-resource=<path>         | required: path to job resource
    --key=<identifier>            | required: name of argument in job resource
    --value=<string>              | alternate: value of argument in job resource
    --file=<path>                 | alternate: value of argument in job resource from a file
    --env-var=<identifier>        | optional: name of environment variable in job resource
    --java-home=<directory>       | optional: Java Home directory for use with encryption
    --java-lib=<directory>        | optional: Java library directory for use with encryption, default: /home/sos/encrypt/enc/lib
    --java-options=<options>      | optional: Java Options for use with encryption
    --encrypt-cert=<path>         | optional: path to Agent's certificate or public key used to encrypt value
    --cacert=<path>               | optional: path to Root CA Certificate for HTTPS connections
    --client-cert=<path>          | optional: path to Client Certificate file (PEM) for HTTPS mutual authentication
    --client-key=<path>           | optional: path to Client Private Key file (PEM) for HTTPS mutual authentication
    --client-keystore=<path>      | optional: path to Client Keystore file (PKCS12) holding Private Key/Certificate for HTTPS mutual authentication
    --timeout=<seconds>           | optional: timeout for connections to JOC Cockpit in seconds, default: 15
    --log-dir=<directory>         | optional: log directory for log output of this script

  Switches:
    -h | --help                   | displays usage
    -v | --verbose                | shows verbose log output
    -p | --password               | asks for password
    --show-logs                   | shows log output if --log-dir is used
    --make-dirs                   | creates directories if they do not exist

Options

• --url
  • Specifies the URL by which JOC Cockpit is accessible using <http|https>://<host>:<port>.
  • Example: http://centostest-primary.sos:4446
  • Example: https://centostest-primary.sos:4443
• --controller-id
  • Specifies the Controller ID to which the updated job resource should be deployed.
• --user
  • Specifies the user account for login to JOC Cockpit. Specification of the user account can be omitted if a JS7 - Identity Services is available for Client authentication certificates that are specified with the --client-cert and --client-key options.
• --password
  • For user/password authentication the --password option can be used to specify a password and the -p switch can be used to prompt for secure input of a password.
• --job-resource
  • Specifies the path to the job resource in the JOC Cockpit inventory.
• --key
  • Specifies the name of an argument in the job resource specified with the --job-resource option.
  • Job Resource arguments are case-sensitive.
• --value
  • Specifies the value of the argument in the job resource specified with the --job-resource option.
• --file
  • Job Resources can be used to transfer files to related Agents. The option expects the path to a file that will be added the Job Resource.
  • The --file option is an alternative to use of the --value option.
• --env-var
  • Optionally specifies the name of an environment variable in the job resource specified with the --job-resource option.
  • The environment variable will be assigned a reference to the argument specified by the --key option to hold the same value as the argument.
  • Job Resource environment variables are case-sensitive.
• --java-home
  • Specifies the Java home directory. Java is required if Job Resource values should be encrypted.
• --java-lib
  • Specifies the directory in which Java libraries are available if Job Resource values should be encrypted.
  • The download archive for JS7 Encryption holds the Job Resource Update Script and includes the lib sub-directory with related Java libraries. By default the lib directory will be used assuming that the Job Resource Update Script is located in the bin directory at the same file system hierarchy level.
• --java-options
  • Specifies the Java options that are used if Job Resource values should be encrypted.
  • If more than one Java option is used then the value has to be quoted, for example --java-options="-Xms64m -Xmx128m".
• --encrypt-cert
  • Specifies the path to a certificate file or public key file that will be used to encrypt the value of the Job Resource. This applies to values specified with the --value option and --file option. For details see JS7 - Encryption and Decryption.
  • An Agent holding the matching private key can decrypt the values of encrypted Job Resource variables, for details see JS7 - How to encrypt and decrypt Variables.
  • The Job Resource Update Script will create a one-time symmetric key that is used to encrypt the value of the Job Resource variable. The symmetric key will be encrypted by use of the recipient's certificate/public key. The value of the Job Resource variable will be assigned the following items separated by spaces: the encrypted copy of the symmetric key, an initialization vector and encrypted value. This guarantees that the owner of the private key, typically a JS7 Agent, is the only party able to decrypt the Job Resource variable's value. Encryption is performed by the Job Resource Update Script before the Job Resource is added using the JS7 REST Web Service API.
• --cacert
  • Specifies the path to a .pem file that holds the Root CA Certificate and optionally Intermediate CA Certificates to verify HTTPS connections to JOC Cockpit.
• --client-cert
  • Specifies the path to a .pem file that holds the Client Certificate if HTTPS mutual authentication is used..
• --client-key
  • Specifies the path to a .pem file that holds the Client Private Key if HTTPS mutual authentication is used..
• --client-keystore
  • Specifies the path to a keystore that holds the private key and certificate used for HTTPS mutual authentication. The keystore is expected in PKCS12 format, typically using the .p12 or .pft extension.
  • Use of a keystore is an alternative to specifying the --client-key and --client-cert options.
  • If the keystore is protected then the --password option specifies the password.
• --timeout
  • Specifies the timeout for connecting to JOC Cockpit. If the connection is not established and the timeout is exceeded then the script will be terminated.
  • By default the timeout is 15s.
• --log-dir
  • If a log directory is specified then the script will log information about processing steps to a log file in this directory.
  • File names are created according to the pattern: set_job_resource.<yyyy>-<MM>-<dd>T<hh>-<mm>-<ss>.log
  • For example: set_job_resource.2022-03-19T20-50-45.log

Switches

• -h | --help
  • Displays usage.
• -v | --verbose
  • Displays verbose log output.
• -p | --password
  • Asks for interactive keyboard input for the password as a secure alternative to use of the --password= option
• --show-logs
  • Displays the log output created by the script if the --log-dir option is used.
• --make-dirs
  • If directories are missing that are indicated with the --home, --backup-dir or --log-dir options then they will be created.

Exit Codes

• 1: argument errors
• 4: this exit code is returned if the JS7 REST Web Service is not reachable or reports errors

Examples

The following examples illustrate typical use cases.

Update Job Resource using HTTP Connection

./js7_set_job_resource.sh \
    --url=http://joc-2-0-primary:7446 \
    --controller-id=controller \
    --user=root \
    --password=root \
    --job-resource=/ProductDemo/Variables/pdBusinessDate \
    --key=businessDate \
    --value=$(date +'%Y-%m-%d')

# updates the Job Resource argument "businessDate" from the current date
# the connection to JOC Cockpit is established by HTTP

Update Job Resource using HTTPS Connection

./js7_set_job_resource.sh \
    --url=https://joc-2-0-primary:7443 \
    --cacert=/home/sos/jstest/certs/root-ca.pem \
    --controller-id=controller \
    --user=root \
    -p \
    --job-resource=/ProductDemo/Variables/pdBusinessDate \
    --key=businessDate \
    --env-var=BUSINESS_DATE \
    --value=$(TZ=Europe/London date +'%Y-%m-%d')

# updates the Job Resource argument "businessDate" from the current date
# the environment variable "BUSINESS_DATE" will be assigned the same date from a reference to the argument
# the date is specified from the UK time zone
# the connection to JOC Cockpit is established by HTTPS and the Root CA Certificate is specified from the path to a .pem file
# the user is prompted for input of the password

Authenticate from Client Certificate using HTTPS Connection

./js7_set_job_resource.sh \
    --url=https://joc-2-0-primary:7443 \
    --cacert=$HOME/certs/root-ca.crt \
    --client-key=$HOME/certs/centostest-primary.key \
    --client-cert=$HOME/certs/centostest-primary.crt \
    --controller-id=controller \
    --user=root \
    --job-resource=/ProductDemo/Variables/pdBusinessDate \
    --key=businessDate \
    --value=$(TZ=Europe/London date +'%Y-%m-%d')

# updates the Job Resource argument "businessDate" from the current date in the UK time zone
# the connection to JOC Cockpit is established by HTTPS and is authenticated by Client Key and Client Certificate

Update Job Resource from File

./js7_set_job_resource.sh \
    --url=http://joc-2-0-primary:7446 \
    --controller-id=controller \
    --user=root \
    --password=root \
    --job-resource=/ProductDemo/Variables/pdConfigurationData \
    --key=configurationData \
    --env-var=CONFIGURATION_DATA \
    --file=./config.ini

# updates the Job Resource argument "configurationData" from the file specified
# the "CONFIGURATION_DATA" environment variable will hold the path to the file

Update Job Resource from Encrypted Value

./js7_set_job_resource.sh \
    --url=http://joc-2-0-primary:7446 \
    --controller-id=controller \
    --user=root \
    --password=root \
    --job-resource=/ProductDemo/Variables/pdBusinessSecret \
    --key=businessSecret \
    --value='secret' \
    --encrypt-cert=./agent.crt
 
# updates the Job Resource variable "businessSecret" from some value
# the value of the "businessSecret" variable will be encrypted using an Agent's certificate
# the value of the "businessSecret" variable holds the encrypted symmetric key, initialization vector and encrypted secret

Update Job Resource from Encrypted File

./js7_set_job_resource.sh \
    --url=http://joc-2-0-primary:7446 \
    --controller-id=controller \
    --user=root \
    --password=root \
    --job-resource=/ProductDemo/Variables/pdConfigurationDataSecret \
    --key=configurationDataSecret \
    --env-var=CONFIGURATION_DATA_SECRET \
    --file=./config.ini \
    --encrypt-cert./agent.crt

# updates the Job Resource variable "configurationDataSecret" from the file specified
# the contents of the file will be encrypted using the Agent's certificate
# an additional variable "configurationDateSecret_key" and environment variable "CONFIGURATION_DATA_SECRET_key" will be created that both hold the encrypted symmetric key and initialization vector

Further Resources

• JS7 - Encryption and Decryption
• JS7 - How to encrypt and decrypt Variables