github.com/fafucoder/cilium@v1.6.11/Documentation/cmdref/cilium_preflight_fqdn-poller.md (about)

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     2  
     3  ## cilium preflight fqdn-poller
     4  
     5  Prepare for DNS Polling upgrades to cilium 1.4
     6  
     7  ### Synopsis
     8  
     9  Prepare for DNS Polling upgrades to cilium 1.4 by creating a
    10  placeholder --tofqdns-pre-cache file that can be used to pre-seed the DNS
    11  cached used in toFQDNs rules. This is useful when upgrading cilium with
    12  DNS Polling policies where an interruption in allowed IPs is undesirable. It
    13  may also be used when switching from DNS Polling based DNS discovery to DNS
    14  Proxy based discovery where an endpoint may not make a DNS request soon
    15  enough to be used by toFQDNs policy rules
    16  
    17  ```
    18  cilium preflight fqdn-poller [flags]
    19  ```
    20  
    21  ### Options
    22  
    23  ```
    24    -h, --help                        help for fqdn-poller
    25        --tofqdns-pre-cache string    The path to write serialized ToFQDNs pre-cache information. stdout is the default
    26        --tofqdns-pre-cache-ttl int   TTL, in seconds, to set on generated ToFQDNs pre-cache information (default 604800)
    27  ```
    28  
    29  ### Options inherited from parent commands
    30  
    31  ```
    32        --config string   config file (default is $HOME/.cilium.yaml)
    33    -D, --debug           Enable debug messages
    34    -H, --host string     URI to server-side API
    35  ```
    36  
    37  ### SEE ALSO
    38  
    39  * [cilium preflight](../cilium_preflight)	 - cilium upgrade helper
    40