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###Required vars:
- openshift_hosted_logging_hostname: kibana.example.com
- openshift_hosted_logging_elasticsearch_cluster_size: 1
- openshift_hosted_logging_master_public_url: https://localhost:8443
###Optional vars:
- openshift_hosted_logging_image_prefix: logging image prefix. No default. Use this to specify an alternate image repository e.g. my.private.repo:5000/private_openshift/
- target_registry: DEPRECATED - use openshift_hosted_logging_image_prefix instead
- openshift_hosted_logging_image_version: logging image version suffix. Defaults to the current version of the deployed software.
- openshift_hosted_logging_secret_vars: (defaults to nothing=/dev/null) kibana.crt=/etc/origin/master/ca.crt kibana.key=/etc/origin/master/ca.key ca.crt=/etc/origin/master/ca.crt ca.key=/etc/origin/master/ca.key
- openshift_hosted_logging_fluentd_replicas: (defaults to 1) 3
- openshift_hosted_logging_cleanup: (defaults to no) Set this to 'yes' in order to cleanup logging components instead of deploying.
- openshift_hosted_logging_elasticsearch_instance_ram: Amount of RAM to reserve per ElasticSearch instance (e.g. 1024M, 2G). Defaults to 8GiB; must be at least 512M (Ref.: [ElasticSearch documentation](https://www.elastic.co/guide/en/elasticsearch/guide/current/hardware.html\#\_memory).
- openshift_hosted_logging_elasticsearch_pvc_size: Size of the PersistentVolumeClaim to create per ElasticSearch ops instance, e.g. 100G. If empty, no PVCs will be created and emptyDir volumes are used instead.
- openshift_hosted_logging_elasticsearch_pvc_prefix: Prefix for the names of PersistentVolumeClaims to be created; a number will be appended per instance. If they don't already exist, they will be created with size `openshift_hosted_logging_elasticsearch_pvc_size`.
- openshift_hosted_logging_elasticsearch_pvc_dynamic: Set to `true` to have created PersistentVolumeClaims annotated such that their backing storage can be dynamically provisioned (if that is available for your cluster).
- openshift_hosted_logging_elasticsearch_storage_group: Number of a supplemental group ID for access to Elasticsearch storage volumes; backing volumes should allow access by this group ID (defaults to 65534).
- openshift_hosted_logging_elasticsearch_nodeselector: Specify the nodeSelector that Elasticsearch should be use (label=value)
- openshift_hosted_logging_fluentd_nodeselector: The nodeSelector used to determine which nodes to apply the `openshift_hosted_logging_fluentd_nodeselector_label` label to.
- openshift_hosted_logging_fluentd_nodeselector_label: The label applied to nodes included in the Fluentd DaemonSet. Defaults to "logging-infra-fluentd=true".
- openshift_hosted_logging_kibana_nodeselector: Specify the nodeSelector that Kibana should be use (label=value)
- openshift_hosted_logging_curator_nodeselector: Specify the nodeSelector that Curator should be use (label=value)
- openshift_hosted_logging_enable_ops_cluster: If "true", configure a second ES cluster and Kibana for ops logs.
- openshift_hosted_logging_use_journal: If this is unset or empty, logging will try to figure out from docker which log driver it is using (json-file or journald). You can set this param to "true" or "false" to force logging to use journal or not (but make sure you are sure which one docker is using).
- openshift_hosted_logging_journal_source: By default, if this param is unset or empty, logging will use `/var/log/journal` if it exists, or `/run/log/journal` if not. You can use this param to force logging to use a different location.
- openshift_hosted_logging_journal_read_from_head: Set to `true` to have fluentd read from the beginning of the journal, to get historical log data. Default is `false`. *WARNING* Using `true` may take several minutes or even hours, depending on the size of the journal, until any new records show up in Elasticsearch, and will cause fluentd to consume a lot of CPU and RAM resources.
When `openshift_hosted_logging_enable_ops_cluster` is `True`, there are some
additional vars. These work the same as above for their non-ops counterparts,
but apply to the OPS cluster instance:
- openshift_hosted_logging_ops_hostname: kibana-ops.example.com
- openshift_hosted_logging_elasticsearch_ops_cluster_size
- openshift_hosted_logging_elasticsearch_ops_instance_ram
- openshift_hosted_logging_elasticsearch_ops_pvc_size
- openshift_hosted_logging_elasticsearch_ops_pvc_prefix
- openshift_hosted_logging_elasticsearch_ops_pvc_dynamic
- openshift_hosted_logging_elasticsearch_ops_nodeselector
- openshift_hosted_logging_kibana_ops_nodeselector
- openshift_hosted_logging_curator_ops_nodeselector
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