rpmbuilds: dynamically specify tmp_fs size

This moves specifying tmp fs size to rpmbuild from [1] in order to be
able to automatically generate its size for performance builders.

[1] - https://pagure.io/fedora-infra/ansible/blob/main/f/roles/copr/backend/files/provision/files/mock/site-defaults.cfg#_18

See fedora-copr#3268

rpmbuild/copr_rpmbuild/builders/mock.py

@@ -42,6 +42,10 @@ def __init__(self, task, sourcedir, resultdir, config):
         self.macros = macros_for_task(task, config)
         self.uniqueext = get_mock_uniqueext()
         self.allow_user_ssh = task.get("allow_user_ssh")
+        self.tags = task.get("tags", [])
+        self.max_fs_size = "140g"
+        if "on_demand_powerful" in self.tags:
+            self.max_fs_size = "280g"
 
     def run(self):
         open(self.logfile, 'w').close() # truncate logfile
@@ -82,6 +86,7 @@ def render_config_template(self):
             copr_build_id=self.build_id,
             isolation=self.isolation,
             macros=self.macros,
+            max_fs_size=self.max_fs_size,
         )
 
     def produce_srpm(self, spec, sources, resultdir):

rpmbuild/copr_rpmbuild/providers/base.py

@@ -51,6 +51,10 @@ def __init__(self, source_dict, config, macros=None, task=None):
             if e.errno != errno.EEXIST:
                 raise
 
+        self.max_fs_size = "140g"
+        if task is not None and "on_demand_powerful" in task.get("tags", []):
+            self.max_fs_size = "280g"
+
         # Change home directory to workdir and create .rpmmacros there
         os.environ["HOME"] = self.workdir
         self.create_rpmmacros()
@@ -130,7 +134,7 @@ def render_mock_config_template(self, template_name):
         """
         jinja_env = Environment(loader=FileSystemLoader(CONF_DIRS))
         template = jinja_env.get_template(template_name)
-        return template.render(macros=self.macros)
+        return template.render(macros=self.macros, max_fs_size=self.max_fs_size)
 
     def produce_srpm(self):
         """

rpmbuild/copr_rpmbuild/providers/custom.py

@@ -51,6 +51,7 @@ def render_mock_config_template(self, *_args):
             chroot=self.chroot,
             repos=self.repos,
             macros=self.macros,
+            max_fs_size=self.max_fs_size,
         )
 
     def produce_srpm(self):

rpmbuild/mock-custom-build.cfg.j2

@@ -15,6 +15,7 @@ config_opts["root"] = "copr-custom-" + config_opts["root"]
 # Important e.g. to keep '/script' file available across several
 # /bin/mock calls (when tmpfs_enable is on).
 config_opts['plugin_conf']['tmpfs_opts']['keep_mounted'] = True
+config_opts['plugin_conf']['tmpfs_opts']['max_fs_size'] = '{{ max_fs_size }}'
 
 {%- for key, value in macros.items() %}
 config_opts['macros']['{{ key }}'] = '{{ value }}'

rpmbuild/mock.cfg.j2

@@ -3,6 +3,7 @@ include('/etc/mock/{{ chroot }}.cfg')
 config_opts.setdefault('plugin_conf', {})
 config_opts['plugin_conf'].setdefault('tmpfs_opts', {})
 config_opts['plugin_conf']['tmpfs_opts']['keep_mounted'] = True
+config_opts['plugin_conf']['tmpfs_opts']['max_fs_size'] = '{{ max_fs_size }}'
 
 {% if buildroot_pkgs %}
 config_opts['chroot_additional_packages'] = '{{ buildroot_pkgs| join(" ") }}'