unkin-agent
716ff7c807
DNSBLs such as Spamhaus refuse queries that arrive via public resolvers, and forwarding everything to 8.8.8.8/1.1.1.1 leaves the estate dependent on them. The lab resolvers now do full recursion themselves (DNSSEC-validated via the operator default `dnssec-validation auto` and BIND built-in root hints). - drop the global forwarders from the bind-resolvers BindCluster - keep the per-zone forwarders for unkin.net, consul, k8s and reverse zones unchanged Reviewed-on: #546 Co-authored-by: unkin-agent <unkin-agent@unkin.net> Co-committed-by: unkin-agent <unkin-agent@unkin.net>
43 lines
1.7 KiB
YAML
43 lines
1.7 KiB
YAML
---
|
|
# Recursive resolvers (replaces the 3x Puppet only-resolver servers).
|
|
# Three identical recursive servers; no zone replication.
|
|
apiVersion: bind.unkin.net/v1alpha1
|
|
kind: BindCluster
|
|
metadata:
|
|
name: bind-resolvers
|
|
namespace: bind-internal
|
|
spec:
|
|
mode: resolver
|
|
replicas: 3
|
|
storageClassName: cephrbd-fast-delete
|
|
storageSize: 1Gi
|
|
service:
|
|
type: LoadBalancer
|
|
externalTrafficPolicy: Local
|
|
annotations:
|
|
purelb.io/service-group: common
|
|
purelb.io/addresses: 198.18.200.7
|
|
external-dns.alpha.kubernetes.io/hostname: bind-resolvers.k8s.syd1.au.unkin.net
|
|
# No global forwarders: DNSBLs refuse queries relayed via public resolvers.
|
|
# The internal split-horizon zones are served UNSIGNED by the in-cluster
|
|
# authoritative, but their public parents publish DS records (e.g. unkin.net
|
|
# is DNSSEC-signed on the Internet). With dnssec-validation on, the validator
|
|
# sees "parent indicates secure" but gets an insecure answer and returns
|
|
# SERVFAIL (broken trust chain). Treat the forwarded internal domains as
|
|
# insecure so they are not validated. unkin.net covers all *.unkin.net
|
|
# (incl. k8s.syd1.au.unkin.net); 18.198.in-addr.arpa covers every reverse zone.
|
|
extraOptions:
|
|
- "validate-except { unkin.net; 18.198.in-addr.arpa; consul; }"
|
|
# Enable query logging so the Tier-2 vector bind_query pipeline can parse
|
|
# client/qname/qtype. Routes to the `queries` category which, with no explicit
|
|
# logging{} clause, follows the default category to the named foreground
|
|
# stderr channel -> pod stdout -> vector (subject logs.k8s.bind-internal.*).
|
|
- "querylog yes"
|
|
resources:
|
|
requests:
|
|
cpu: 20m
|
|
memory: 128Mi
|
|
limits:
|
|
cpu: "1"
|
|
memory: 512Mi
|