fixes https://github.com/TryGhost/Team/issues/834
- see referenced issue for context
- there are times when `parentPort` can be null and the job crashes
because `parentPort.postMessage` won't work
- this commit adds guards around `parentPort`, or moves code inside
existing guards, to protect against this
refs https://github.com/TryGhost/Ghost/issues/12496
- Using ghost-ignition logging caused file handle leaks. As there is no straight-forward way to handle write streams with bunyan (ghost-ignition's underlying logging library) this method of logging was chosen as an alternative to keep the amount of open file handles to minimum
- The follow up changes will include custom formatter for jobs service which should make logging match the same format as has been used inside the jobs
refs #12402
- With bumped version of job-manager it offloads job procesing into separate worker thread. Having jobs run out of main Ghost process even loop allows for safe job execution, which does not block Ghost from serving requests or performing other functions without a delay
- Added experimental data access to 'testmode' jobs. This should serve as an illustration of how to access data from the job layer
no issue
- These changes should allow easy testing of scheduled jobs and provide an implementation example for future jobs within Ghost
- Added experimental support to run jobs based on functions defined in modules
- Extendeded testmode "schedule" endpoint with an optional job name parameter which picks up job from "jobs" folder
- Adjusted scheduleJob method use and passed "schedule" as first parameter
- Bumped job-manager version to allow for all new functionality
no issue
- Living in separate folder will allow adding more testmode specific modules (for example test jobs)
- Mimicks the folder structure of how v2/canary routes are structured better
