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cilium: mount the host's /etc/hosts on gossip clusters #18465

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Merged
k8s-ci-robot merged 2 commits into from
Jun 12, 2026
Merged

cilium: mount the host's /etc/hosts on gossip clusters #18465

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7f3a462
cilium: mount the host's /etc/hosts on gossip clusters
hakman Jun 12, 2026
a14d1f8
./hack/update-expected.sh
hakman Jun 12, 2026
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2 changes: 1 addition & 1 deletion ...luster/minimal_scaleway/data/aws_s3_object_scw-minimal.k8s.local-addons-bootstrap_content
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Original file line number Diff line number Diff line change
Expand Up @@ -54,7 +54,7 @@ spec:
version: 9.99.0
- id: k8s-1.16
manifest: networking.cilium.io/k8s-1.16-v1.15.yaml
manifestHash: dd73a7e0bb9dde0f92a8647eb368050717457d6c8edf34112bbfc656db91772f
manifestHash: f290feb45f211058acfff0aeca12edd45be556cdf0e1230c9d088a8e4d1f4352
name: networking.cilium.io
needsRollingUpdate: all
selector:
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14 changes: 14 additions & 0 deletions ...way/data/aws_s3_object_scw-minimal.k8s.local-addons-networking.cilium.io-k8s-1.16_content
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Expand Up @@ -791,6 +791,9 @@ spec:
name: xtables-lock
- mountPath: /tmp
name: tmp
- mountPath: /etc/hosts
name: etc-hosts
readOnly: true
hostNetwork: true
initContainers:
- command:
Expand Down Expand Up @@ -1049,6 +1052,10 @@ spec:
path: /proc/sys/kernel
type: Directory
name: host-proc-sys-kernel
- hostPath:
path: /etc/hosts
type: File
name: etc-hosts
updateStrategy:
type: OnDelete

Expand Down Expand Up @@ -1168,6 +1175,9 @@ spec:
- mountPath: /tmp/cilium/config-map
name: cilium-config-path
readOnly: true
- mountPath: /etc/hosts
name: etc-hosts
readOnly: true
hostNetwork: true
nodeSelector:
kubernetes.io/os: linux
Expand All @@ -1192,3 +1202,7 @@ spec:
- configMap:
name: cilium-config
name: cilium-config-path
- hostPath:
path: /etc/hosts
type: File
name: etc-hosts
30 changes: 30 additions & 0 deletions upup/models/cloudup/resources/addons/networking.cilium.io/k8s-1.16-v1.15.yaml.template
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Expand Up @@ -1584,6 +1584,14 @@ spec:
{{ end }}
- name: tmp
mountPath: /tmp
{{- if GossipEnabled }}
# Gossip clusters update the host's /etc/hosts as control-plane nodes
# are replaced; mount it so the agent sees those updates instead of
# the static copy kubelet makes at container start.
- name: etc-hosts
mountPath: /etc/hosts
readOnly: true
{{- end }}

{{ if .Debug }}
- name: cilium-monitor
Expand Down Expand Up @@ -1925,6 +1933,13 @@ spec:
hostPath:
path: /proc/sys/kernel
type: Directory
{{- if GossipEnabled }}
# To see protokube's updates to the host's /etc/hosts (gossip clusters)
- name: etc-hosts
hostPath:
path: /etc/hosts
type: File
{{- end }}
{{ if WithDefaultBool .Hubble.Enabled false }}
- name: hubble-tls
projected:
Expand Down Expand Up @@ -2058,6 +2073,14 @@ spec:
- name: etcd-secrets
mountPath: /var/lib/etcd-secrets
readOnly: true
{{- end }}
{{- if GossipEnabled }}
# Gossip clusters update the host's /etc/hosts as control-plane nodes
# are replaced; mount it so the operator sees those updates instead of
# the static copy kubelet makes at container start.
- name: etc-hosts
mountPath: /etc/hosts
readOnly: true
{{- end }}
securityContext:
allowPrivilegeEscalation: false
Expand Down Expand Up @@ -2123,6 +2146,13 @@ spec:
path: /etc/kubernetes/pki/cilium
type: Directory
{{- end }}
{{- if GossipEnabled }}
# To see protokube's updates to the host's /etc/hosts (gossip clusters)
- name: etc-hosts
hostPath:
path: /etc/hosts
type: File
{{- end }}
{{ if WithDefaultBool .Hubble.Enabled false }}
---
# Source: cilium/templates/hubble-relay/deployment.yaml
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