This allows build chains to be traced in the common case where
an upstream job calls `laminarc queue' instead of `laminarc start'.
Incomplete job runs now have database entries, which requires
some adjustments in queries. Queued jobs can now be viewed in
the frontend and there is a corresponding status icon.
When triggering a run, the job is first added to a queue of upcoming tasks. If the server is busy, the job may wait in this queue for a while. It will only be assigned a job number when it leaves this queue and starts executing. The job number may be useful to the client that triggers the run, so there are a few ways to trigger a run.
To add the `hello` job to the queue ("fire-and-forget"), execute
To queue execution of the `hello` job, run
```bash
laminarc queue hello
```
In this case, laminarc returns immediately, with its error code indicating whether adding the job to the queue was sucessful.
In this case, `laminarc` returns immediately, with its error code indicating whether adding the job to the queue was sucessful. The run number will be printed to standard output.
To queue the job and wait until it leaves the queue and starts executing, use
If the server is busy, a run may wait in the queue for some time. To have `laminarc` instead block until the run leaves the queue and starts executing, use
```bash
laminarc start hello
```
In this case, laminarc blocks until the job starts executing, or returns immediately if queueing failed. The run number will be printed to standard output.
In this case, `laminarc` blocks until the job starts executing, or returns immediately if queueing failed. The run number will be printed to standard output.
To launch and run the `hello` job to completion, execute
Finally, to launch and run the `hello` job to completion, execute
```bash
laminarc run hello
```
In this case, laminarc's return value indicates whether the run completed successfully.
In all cases, a started run means the `/var/lib/laminar/cfg/jobs/hello.run` script will be executed, with a working directory of `/var/lib/laminar/run/hello/1` (or current run number)
The result and log output should be visible in the Web UI at http://localhost:8080/jobs/hello/1
db->stmt("SELECT name,number,startedAt,completedAt,result FROM builds b JOIN (SELECT name n,MAX(number) l FROM builds GROUP BY n) q ON b.name = q.n AND b.number = q.l")
db->stmt("SELECT name,number,startedAt,completedAt,result FROM builds b "
"JOIN (SELECT name n,MAX(number) latest FROM builds WHERE result IS NOT NULL GROUP BY n) q "
Oliver Giles
4 years ago