add setting to give all jobs a unique name

README.md

@@ -375,6 +375,13 @@ package repositories. Typically these settings are set in the prologue of a
 Slurm job. However, when entering the [EESSI compatibility layer](https://www.eessi.io/docs/compatibility_layer),
 most environment settings are cleared. Hence, they need to be set again at a later stage.
 
+```
+job_name = JOB_NAME
+```
+Replace `JOB_NAME` with a string of at least 3 characters that is used as job
+name when a job is submitted. This is used to filter jobs, e.g., should be used
+to make sure that multiple bot instances can run in the same Slurm environment.
+
 ```
 jobs_base_dir = PATH_TO_JOBS_BASE_DIR
 ```

app.cfg.example

@@ -87,6 +87,10 @@ container_cachedir = PATH_TO_SHARED_DIRECTORY
 # http_proxy = http://PROXY_DNS:3128/
 # https_proxy = http://PROXY_DNS:3128/
 
+# Used to give all jobs of a bot instance the same name. Can be used to allow
+# multiple bot instances running on the same Slurm cluster.
+job_name = prod
+
 # directory under which the bot prepares directories per job
 #   structure created is as follows: YYYY.MM/pr_PR_NUMBER/event_EVENT_ID/run_RUN_NUMBER/OS+SUBDIR
 jobs_base_dir = $HOME/jobs

eessi_bot_event_handler.py

@@ -51,6 +51,7 @@
         # config.BUILDENV_SETTING_CVMFS_CUSTOMIZATIONS,              # optional
         # config.BUILDENV_SETTING_HTTPS_PROXY,                       # optional
         # config.BUILDENV_SETTING_HTTP_PROXY,                        # optional
+        config.BUILDENV_SETTING_JOB_NAME,                          # required
         config.BUILDENV_SETTING_JOBS_BASE_DIR,                     # required
         # config.BUILDENV_SETTING_LOAD_MODULES,                      # optional
         config.BUILDENV_SETTING_LOCAL_TMP,                         # required

eessi_bot_job_manager.py

@@ -50,6 +50,8 @@
 
 # settings that are required in 'app.cfg'
 REQUIRED_CONFIG = {
+    config.SECTION_BUILDENV: [
+        config.BUILDENV_SETTING_JOB_NAME],                            # required
     config.SECTION_FINISHED_JOB_COMMENTS: [
         config.FINISHED_JOB_COMMENTS_SETTING_JOB_RESULT_UNKNOWN_FMT,  # required
         config.FINISHED_JOB_COMMENTS_SETTING_JOB_TEST_UNKNOWN_FMT],   # required
@@ -85,6 +87,10 @@ def __init__(self):
         cfg = config.read_config()
         job_manager_cfg = cfg[config.SECTION_JOB_MANAGER]
         self.logfile = job_manager_cfg.get(config.JOB_MANAGER_SETTING_LOG_PATH)
+        buildenv_cfg = cfg[config.SECTION_BUILDENV]
+        self.job_name = buildenv_cfg.get(config.BUILDENV_SETTING_JOB_NAME)
+        if self.job_name and len(self.job_name) < 3:
+            raise Exception(f"job name ({self.job_name}) is shorter than 3 characters")
 
     def get_current_jobs(self):
         """
@@ -106,6 +112,8 @@ def get_current_jobs(self):
             raise Exception("Unable to find username")
 
         squeue_cmd = "%s --long --noheader --user=%s" % (self.poll_command, username)
+        if self.job_name:
+            squeue_cmd += " --name='%s'" % self.job_name
         squeue_output, squeue_err, squeue_exitcode = run_cmd(
             squeue_cmd,
             "get_current_jobs(): squeue command",

tasks/build.py

@@ -67,6 +67,10 @@ def get_build_env_cfg(cfg):
 
     buildenv = cfg[config.SECTION_BUILDENV]
 
+    job_name = buildenv.get(config.BUILDENV_SETTING_JOB_NAME)
+    log(f"{fn}(): job_name '{job_name}'")
+    config_data = {config.BUILDENV_SETTING_JOB_NAME: job_name}
+
     jobs_base_dir = buildenv.get(config.BUILDENV_SETTING_JOBS_BASE_DIR)
     log(f"{fn}(): jobs_base_dir '{jobs_base_dir}'")
     config_data = {config.BUILDENV_SETTING_JOBS_BASE_DIR: jobs_base_dir}
@@ -640,6 +644,10 @@ def submit_job(job, cfg):
 
     build_env_cfg = get_build_env_cfg(cfg)
 
+    # the job_name is used to filter jobs in case multiple bot
+    # instances run on the same system
+    job_name = cfg[config.SECTION_BUILDENV].get(config.BUILDENV_SETTING_JOB_NAME)
+
     # add a default time limit of 24h to the job submit command if no other time
     # limit is specified already
     all_opts_str = " ".join([build_env_cfg[config.BUILDENV_SETTING_SLURM_PARAMS], job.slurm_opts])
@@ -653,9 +661,9 @@ def submit_job(job, cfg):
         build_env_cfg[config.BUILDENV_SETTING_SUBMIT_COMMAND],
         build_env_cfg[config.BUILDENV_SETTING_SLURM_PARAMS],
         time_limit,
-        job.slurm_opts,
-        build_env_cfg[config.BUILDENV_SETTING_BUILD_JOB_SCRIPT],
-    ])
+        job.slurm_opts] +
+        ([f"--job-name='{job_name}'"] if job_name else []) +
+        [build_env_cfg[config.BUILDENV_SETTING_BUILD_JOB_SCRIPT]])
 
     cmdline_output, cmdline_error, cmdline_exit_code = run_cmd(command_line,
                                                                "submit job for target '%s'" % job.arch_target,

tests/test_app.cfg

@@ -11,6 +11,8 @@
 
 # sample config file for tests (some functions run config.read_config()
 # which reads app.cfg by default)
+[buildenv]
+
 [job_manager]
 
 # variable 'comment' under 'submitted_job_comments' should not be changed as there are regular expression patterns matching it

tools/config.py

@@ -43,6 +43,7 @@
 BUILDENV_SETTING_CVMFS_CUSTOMIZATIONS = 'cvmfs_customizations'
 BUILDENV_SETTING_HTTPS_PROXY = 'https_proxy'
 BUILDENV_SETTING_HTTP_PROXY = 'http_proxy'
+BUILDENV_SETTING_JOB_NAME = 'job_name'
 BUILDENV_SETTING_JOBS_BASE_DIR = 'jobs_base_dir'
 BUILDENV_SETTING_LOAD_MODULES = 'load_modules'
 BUILDENV_SETTING_LOCAL_TMP = 'local_tmp'