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| author |  Chris O'Haver <cohaver@infoblox.com>
| 2018-12-05 16:20:20 -0500 |
|---|---|---|
| committer |  corbot[bot] <corbot[bot]@users.noreply.github.com>
| 2018-12-05 21:20:20 +0000 |
| commit | 9a393ac5c8e57b7fa38c73eb2dc6a96cf51ad800 (patch) | |
| tree | dbdb7aa82b727c5007b0d23d032b5a196490f5a7 /plugin | |
| parent | 59a49c5ff7eeb6dad2e38ce8ccd5c4682e087005 (diff) | |
| download | coredns-9a393ac5c8e57b7fa38c73eb2dc6a96cf51ad800.tar.gz coredns-9a393ac5c8e57b7fa38c73eb2dc6a96cf51ad800.tar.zst coredns-9a393ac5c8e57b7fa38c73eb2dc6a96cf51ad800.zip | |
clean pre-submit checks (#2367)
Automatically submitted.
Diffstat (limited to 'plugin')
| -rw-r--r-- | plugin/loop/README.md | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/plugin/loop/README.md b/plugin/loop/README.md index e10e1f4b7..9272160ff 100644 --- a/plugin/loop/README.md +++ b/plugin/loop/README.md @@ -71,13 +71,13 @@ A common cause of forwarding loops in Kubernetes clusters is an interaction with on the host node (e.g. `systemd-resolved`). For example, in certain configurations `systemd-resolved` will put the loopback address `127.0.0.53` as a nameserver into `/etc/resolv.conf`. Kubernetes (via `kubelet`) by default will pass this `/etc/resolv/conf` file to all Pods using the `default` dnsPolicy rendering them -unable to make DNS lookups (this includes CoreDNS Pods). CoreDNS uses this `/etc/resolv.conf` +unable to make DNS lookups (this includes CoreDNS Pods). CoreDNS uses this `/etc/resolv.conf` as a list of upstreams to proxy/forward requests to. Since it contains a loopback address, CoreDNS ends up forwarding -requests to itself. +requests to itself. There are many ways to work around this issue, some are listed here: -* Add the following to `kubelet`: `--resolv-conf <path-to-your-real-resolv-conf-file>`. Your "real" +* Add the following to `kubelet`: `--resolv-conf <path-to-your-real-resolv-conf-file>`. Your "real" `resolv.conf` is the one that contains the actual IPs of your upstream servers, and no local/loopback address. This flag tells `kubelet` to pass an alternate `resolv.conf` to Pods. For systems using `systemd-resolved`, `/run/systemd/resolve/resolv.conf` is typically the location of the "real" `resolv.conf`, |