plugin_name: python.d.plugin
modules:
  - meta:
      plugin_name: python.d.plugin
      module_name: bind_rndc
      monitored_instance:
        name: ISC Bind (RNDC)
        link: "https://www.isc.org/bind/"
        categories:
          - data-collection.dns-and-dhcp-servers
        icon_filename: "isc.png"
      related_resources:
        integrations:
          list: []
      info_provided_to_referring_integrations:
        description: ""
      keywords:
        - dns
        - bind
        - server
      most_popular: false
    overview:
      data_collection:
        metrics_description: "Monitor ISCBind (RNDC) performance for optimal DNS server operations. Monitor query rates, response times, and error rates to ensure reliable DNS service delivery."
        method_description: "This collector uses the `rndc` tool to dump (named.stats) statistics then read them to gather Bind Name Server summary performance metrics."
      supported_platforms:
        include: []
        exclude: []
      multi_instance: false
      additional_permissions:
        description: ""
      default_behavior:
        auto_detection:
          description: "If no configuration is given, the collector will attempt to read named.stats file at `/var/log/bind/named.stats`"
        limits:
          description: ""
        performance_impact:
          description: ""
    setup:
      prerequisites:
        list:
          - title: "Minimum bind version and permissions"
            description: "Version of bind must be >=9.6 and the Netdata user must have permissions to run `rndc stats`"
          - title: "Setup log rotate for bind stats"
            description: |
              BIND appends logs at EVERY RUN. It is NOT RECOMMENDED to set `update_every` below 30 sec.
              It is STRONGLY RECOMMENDED to create a `bind-rndc.conf` file for logrotate.
              
              To set up BIND to dump stats do the following:
              
              1. Add to 'named.conf.options' options {}:
              `statistics-file "/var/log/bind/named.stats";`
              
              2. Create bind/ directory in /var/log:
              `cd /var/log/ && mkdir bind`
              
              3. Change owner of directory to 'bind' user:
              `chown bind bind/`
              
              4. RELOAD (NOT restart) BIND:
              `systemctl reload bind9.service`
              
              5. Run as a root 'rndc stats' to dump (BIND will create named.stats in new directory)
              
              To allow Netdata to run 'rndc stats' change '/etc/bind/rndc.key' group to netdata:
              `chown :netdata rndc.key`
              
              Last, BUT NOT least, is to create bind-rndc.conf in logrotate.d/:
              ```
              /var/log/bind/named.stats {
              
                  daily
                  rotate 4
                  compress
                  delaycompress
                  create 0644 bind bind
                  missingok
                  postrotate
                      rndc reload > /dev/null
                  endscript
              }
              ```
              To test your logrotate conf file run as root:
              `logrotate /etc/logrotate.d/bind-rndc -d (debug dry-run mode)`
      configuration:
        file:
          name: python.d/bind_rndc.conf
        options:
          description: |
            There are 2 sections:
            
            * Global variables
            * One or more JOBS that can define multiple different instances to monitor.
            
            The following options can be defined globally: priority, penalty, autodetection_retry, update_every, but can also be defined per JOB to override the global values.
            
            Additionally, the following collapsed table contains all the options that can be configured inside a JOB definition.
            
            Every configuration JOB starts with a `job_name` value which will appear in the dashboard, unless a `name` parameter is specified.
          folding:
            title: "Config options"
            enabled: true
          list:
            - name: update_every
              description: Sets the default data collection frequency.
              default_value: 5
              required: false
            - name: priority
              description: Controls the order of charts at the netdata dashboard.
              default_value: 60000
              required: false
            - name: autodetection_retry
              description: Sets the job re-check interval in seconds.
              default_value: 0
              required: false
            - name: penalty
              description: Indicates whether to apply penalty to update_every in case of failures.
              default_value: yes
              required: false
            - name: name
              description: Job name. This value will overwrite the `job_name` value. JOBS with the same name are mutually exclusive. Only one of them will be allowed running at any time. This allows autodetection to try several alternatives and pick the one that works.
              default_value: ""
              required: false
            - name: named_stats_path
              description: Path to the named stats, after being dumped by `nrdc`
              default_value: "/var/log/bind/named.stats"
              required: false
        examples:
          folding:
            enabled: false
            title: "Config"
          list:
            - name: Local bind stats
              description: Define a local path to bind stats file
              config: |
                local:
                 named_stats_path: '/var/log/bind/named.stats'
    troubleshooting:
      problems:
        list: []
    alerts:
      - name: bind_rndc_stats_file_size
        link: https://github.com/netdata/netdata/blob/master/health/health.d/bind_rndc.conf
        metric: bind_rndc.stats_size
        info: BIND statistics-file size
    metrics:
      folding:
        title: Metrics
        enabled: false
      description: ""
      availability: []
      scopes:
        - name: global
          description: "These metrics refer to the entire monitored application."
          labels: []
          metrics:
            - name: bind_rndc.name_server_statistics
              description: Name Server Statistics
              unit: "stats"
              chart_type: line
              dimensions:
                - name: requests
                - name: rejected_queries
                - name: success
                - name: failure
                - name: responses
                - name: duplicate
                - name: recursion
                - name: nxrrset
                - name: nxdomain
                - name: non_auth_answer
                - name: auth_answer
                - name: dropped_queries
            - name: bind_rndc.incoming_queries
              description: Incoming queries
              unit: "queries"
              chart_type: line
              dimensions:
                - name: a dimension per incoming query type
            - name: bind_rndc.outgoing_queries
              description: Outgoing queries
              unit: "queries"
              chart_type: line
              dimensions:
                - name: a dimension per outgoing query type
            - name: bind_rndc.stats_size
              description: Named Stats File Size
              unit: "MiB"
              chart_type: line
              dimensions:
                - name: stats_size