Added 'config core' and 'show cores' CLI commands

config/coredump.py

@@ -0,0 +1,30 @@
+import os
+import click
+import utilities_common.cli as clicommon
+from swsssdk import ConfigDBConnector
+
+@click.group(cls=clicommon.AbbreviationGroup, name="coredump")
+def coredump():
+    """ Configure coredump """
+    if os.geteuid() != 0:
+        exit("Root privileges are required for this operation")
+
+@coredump.command()
+@click.argument('disable', required=False)
+def disable(disable):
+    """Administratively Disable coredump generation"""
+    config_db = ConfigDBConnector()
+    config_db.connect()
+    table = "COREDUMP"
+    key = "config"
+    config_db.set_entry(table, key, {"enabled": "false"})
+
+@coredump.command()
+@click.argument('enable', required=False)
+def enable(enable):
+    """Administratively Enable coredump generation"""
+    config_db = ConfigDBConnector()
+    config_db.connect()
+    table = "COREDUMP"
+    key = "config"
+    config_db.set_entry(table, key, {"enabled": "true"})

config/main.py

@@ -27,6 +27,7 @@
 from . import aaa
 from . import chassis_modules
 from . import console
+from . import coredump
 from . import feature
 from . import kube
 from . import mlnx
@@ -877,6 +878,7 @@ def config(ctx):
 config.add_command(aaa.tacacs)
 config.add_command(chassis_modules.chassis_modules)
 config.add_command(console.console)
+config.add_command(coredump.coredump)
 config.add_command(feature.feature)
 config.add_command(kube.kubernetes)
 config.add_command(muxcable.muxcable)

show/coredump.py

@@ -0,0 +1,75 @@
+import os
+import click
+import utilities_common.cli as clicommon
+from swsssdk import ConfigDBConnector
+
+#
+# 'coredumpctl' group ("show coredump")
+#
+
+@click.group(cls=clicommon.AliasedGroup, name="coredump")
+def coredump():
+    """Show core dump events encountered"""
+    pass
+
+# 'config' subcommand ("show coredump config")
+@coredump.command('config')
+@click.option('--verbose', is_flag=True, help="Enable verbose output")
+def core_config(verbose):
+    """ Show coredump configuration """
+    # Default admin mode
+    admin_mode = True
+    # Obtain config from Config DB
+    config_db = ConfigDBConnector()
+    if config_db is not None:
+        config_db.connect()
+        table_data = config_db.get_table('COREDUMP')
+        if table_data is not None:
+            config_data = table_data.get('config')
+            if config_data is not None:
+                admin_mode = config_data.get('enabled')
+                if admin_mode is not None and admin_mode.lower() == 'false':
+                    admin_mode = False
+
+    # Core dump administrative mode
+    if admin_mode:
+        click.echo('Coredump : %s' % 'Enabled')
+    else:
+        click.echo('Coredump : %s' % 'Disabled')
+
+# 'list' subcommand ("show coredump list")
+@coredump.command('list')
+@click.argument('pattern', required=False)
+@click.option('--verbose', is_flag=True, help="Enable verbose output")
+def core_list(verbose, pattern):
+    """ List available coredumps """
+
+    if not os.geteuid()==0:
+        click.echo("Note: To list all the core files please run the command with root privileges\n")
+
+    if os.path.exists("/usr/bin/coredumpctl"):
+        cmd = "coredumpctl list"
+        if pattern is not None:
+            cmd = cmd + " " + pattern
+        clicommon.run_command(cmd, display_cmd=verbose)
+    else:
+        exit("Note: Install systemd-coredump package to run this command")
+
+# 'info' subcommand ("show coredump info")
+@coredump.command('info')
+@click.argument('pattern', required=False)
+@click.option('--verbose', is_flag=True, help="Enable verbose output")
+def core_info(verbose, pattern):
+    """ Show information about one or more coredumps """
+
+    if not os.geteuid()==0:
+        click.echo("Note: To view all the core files please run the command with root privileges\n")
+
+    if os.path.exists("/usr/bin/coredumpctl"):
+        cmd = "coredumpctl info"
+        if pattern is not None:
+            cmd = cmd + " " + pattern
+        clicommon.run_command(cmd, display_cmd=verbose)
+    else:
+        exit("Note: Install systemd-coredump package to run this command")
+

show/main.py

@@ -18,6 +18,7 @@
 
 from . import bgp_common 
 from . import chassis_modules
+from . import coredump
 from . import feature
 from . import fgnhg
 from . import interfaces
@@ -129,6 +130,7 @@ def cli(ctx):
 
 # Add groups from other modules
 cli.add_command(chassis_modules.chassis_modules)
+cli.add_command(coredump.coredump)
 cli.add_command(feature.feature)
 cli.add_command(fgnhg.fgnhg)
 cli.add_command(interfaces.interfaces)
@@ -1423,6 +1425,7 @@ def system_memory(verbose):
     cmd = "free -m"
     run_command(cmd, display_cmd=verbose)
 
+
 #
 # 'kdump command ("show kdump ...")
 #