Calico

Introduction

Calico is an open-source project that provides networking and security for Kubernetes. It’s a plug-in that implements the Kubernetes Container Network Interface (CNI).

Usually it exposes Prometheus metrics via two main components:

Felix (for smaller cluster)
Typha (for large cluster)

Kubernetes 2.0 ConfigMap

Users should update or append the existing ConfigMap named opsramp-workload-metric-user-config by adding application-specific fields. These fields may include authentication credentials, collection frequency, and other relevant configurations.

apiVersion: v1
kind: ConfigMap
metadata:
  name: opsramp-workload-metric-user-config
  namespace: opsramp-agent
data:
  workloads: |
    calico:
    - name: calico
      collectionFrequency: 59s
      port: 9091
      filters: # optional
        - regex: 'felix_cluster_num_hosts'
          action: exclude
        - regex: 'felix_ipset_lines_executed'
          action: include
      targetPodSelector:
        matchLabels:
          - key: k8s-app
            operator: ==
            value:
              - calico-node

Supported Metrics

Supported metrics for this workload as provided by the Kubernetes 2.0 Agent.

Metric	Description
felix_iptables_restore_errors	Total number of errors encountered during the iptables restore process in Felix.
felix_iptables_save_calls	Total number of calls made to save iptables rules in Felix.
felix_active_local_endpoints	Total number of active local endpoints managed by Felix.
felix_int_dataplane_addr_msg_batch_size	Batch size for address messages sent in the internal dataplane in Felix.
felix_int_dataplane_apply_time_seconds	Time (in seconds) spent applying changes to the internal dataplane in Felix.
felix_log_errors	Total number of error logs generated by Felix.
felix_bpf_happy_dataplane_endpoints	Number of endpoints in the BPF dataplane that are considered happy (in a good state) in Felix.
felix_host	The hostname of the machine running the Felix agent.
felix_int_dataplane_msg_batch_size	Batch size for messages sent within the internal dataplane in Felix.
felix_logs_dropped	Total number of logs dropped by Felix due to system limitations or issues.
felix_iptables_save_errors	Total number of errors encountered during the iptables save process in Felix.
felix_resyncs_started	Total number of resync operations started by Felix to reconcile state.
felix_route_table_list_seconds	Time (in seconds) taken to list the route table entries in Felix.
felix_active_local_policies	Total number of active local policies applied by Felix.
felix_active_local_selectors	Total number of active local selectors in use by Felix.
felix_calc_graph_update_time_seconds	Time (in seconds) spent calculating the graph updates for network policies in Felix.
felix_cluster_num_workload_endpoints	Total number of workload endpoints in the Felix-managed cluster.
felix_int_dataplane_failures	Total number of failures occurring in the internal dataplane in Felix.
felix_cluster_num_hosts	Total number of hosts in the Felix-managed cluster.
felix_ipsets_calico	Total number of Calico IP sets used by Felix.
felix_iptables_lines_executed	Total number of iptables lines executed by Felix.
felix_iptables_lock_retries	Total number of retries to acquire the iptables lock in Felix.
felix_route_table_per_iface_sync_seconds	Time (in seconds) spent synchronizing the route table per network interface in Felix.
felix_ipset_errors	Total number of errors encountered while managing IP sets in Felix.
felix_ipset_lines_executed	Total number of ipset lines executed by Felix.
felix_ipsets_total	Total number of IP sets managed by Felix.
felix_calc_graph_updates_processed	Total number of graph updates processed by Felix for network policies.
felix_iptables_rules	Total number of iptables rules applied by Felix.
felix_cluster_num_policies	Total number of policies applied in the Felix-managed cluster.
felix_int_dataplane_iface_msg_batch_size	Batch size for interface messages in the internal dataplane of Felix.
felix_iptables_restore_calls	Total number of iptables restore calls made by Felix.
felix_cluster_num_host_endpoints	Total number of host endpoints in the Felix-managed cluster.
felix_iptables_chains	Total number of iptables chains created and managed by Felix.
felix_exec_time_micros	Total execution time (in microseconds) for Felix operations.
felix_ipset_calls	Total number of calls made to manage IP sets in Felix.
felix_iptables_lock_acquire_secs	Total time (in seconds) spent acquiring the iptables lock in Felix.
felix_bpf_num_ip_sets	Number of IP sets used by the BPF dataplane in Felix.
felix_calc_graph_output_events	Total number of events generated by the calculation of the graph for network policies in Felix.
felix_cluster_num_profiles	Total number of profiles in the Felix-managed cluster.
felix_bpf_dataplane_endpoints	Total number of endpoints in the BPF dataplane managed by Felix.
felix_resync_state	Current state of the resynchronization process in Felix.
felix_bpf_dirty_dataplane_endpoints	Number of dirty (not synchronized) endpoints in the BPF dataplane in Felix.
felix_int_dataplane_messages	Total number of messages processed by the internal dataplane in Felix.