Component logs
The calico/node container
The components in the calico/node
container all log to the directories under
/var/log/calico
inside the container. By default this is mapped to the
/var/log/calico
directory on the host but can be changed by specifying a
--log-dir
parameter on the calicoctl node run
command.
Each component (described below) logs to its own directory. Files are
automatically rotated, and by default 10 files of 1MB each are kept. The
current log file is called current
and rotated files have @ followed by a
timestamp detailing when the files was rotated in tai64n format.
All logging is done using svlogd.
Each component can be configured by dropping a file named config
into that
component’s logging directory.
svlogd can be configured to forward logs to syslog, to prefix each line and to filter logs. See the documentation for further details.
e.g. to configure bird to only log 4 files of 10KB each, create a file called config
in the /var/log/calico/bird
directory containing
e.g. to configure bird to drop logs with the suffix Netlink: File exists
, create a file called config
in the /var/log/calico/bird
directory containing
See the following subsections for details on configuring the log level for
each calico/node
component.
Bird/Bird6
Bird and Bird6 are used for distributing IPv4 and IPv6 routes between Calico
enabled hosts. The logs are output in the bird
and bird6
sub-directories
of the calico/node
logging directory.
- The Debug level enables “debug all” logging for bird.
- The Info level (default) only enabled “debug {states}” logging. This is for protocol state changes (protocol going up, down, starting, stopping etc.)
- The Warning, Error and Fatal levels all turn off bird debug logging completely.
See BGP Configuration Resource for details on how to modify the logging level. For example:
-
Get the current bgpconfig settings.
-
Modify logSeverityScreen to desired value.
Tip: For a global change set the name to “default”. For a node-specific change set the name to the node name prefixed with “node.”, e.g., “node.node-1”.
-
Replace the current bgpconfig settings.
Felix
Felix is the primary Calico agent that runs on each machine that hosts
endpoints. Felix is responsible for the programming of iptables rules on the
host. The logs are output in the felix
sub-directory of the calico/node
logging directory.
-
Get the current felixconfig settings.
-
Modify logSeverityScreen to desired value.
Tip: For a global change set the name to “default”. For a node-specific change set the name to the node name, e.g., “Calico-Node-1”.
-
Replace the current felixconfig settings.
confd
The confd agent generates configuration files for Felix and Bird using
configuration data present in the etcd datastore. The logs are output in the
confd
sub-directory of the calico/node
logging directory.
By default, the confd logging level is “debug” and cannot be changed without editing configuration within the node image.
For more information on the allowed levels, see the documentation