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hardening: Add SeccompDefault admission plugin for kubelet #9074

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merged 3 commits into from
Jul 19, 2022
Merged

hardening: Add SeccompDefault admission plugin for kubelet #9074

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5b707b1
docs(hardening): add SeccompDefault admission plugin to kubelet featu…
alegrey91 Jul 7, 2022
87b55cc
fix(kubelet-config): enable config through kubelet_feature_gates
alegrey91 Jul 12, 2022
3738cf6
feat(kubelet): add kubelet_seccomp_default variable
alegrey91 Jul 12, 2022
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3 changes: 2 additions & 1 deletion docs/hardening.md
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Original file line number Diff line number Diff line change
Expand Up @@ -83,7 +83,8 @@ kubelet_event_record_qps: 1
kubelet_rotate_certificates: true
kubelet_streaming_connection_idle_timeout: "5m"
kubelet_make_iptables_util_chains: true
kubelet_feature_gates: ["RotateKubeletServerCertificate=true"]
kubelet_feature_gates: ["RotateKubeletServerCertificate=true","SeccompDefault=true"]
kubelet_seccomp_default: true

# additional configurations
kube_owner: root
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7 changes: 5 additions & 2 deletions roles/kubernetes/node/templates/kubelet-config.v1beta1.yaml.j2
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Expand Up @@ -116,9 +116,9 @@ resolvConf: "{{ kube_resolv_conf }}"
{% if inventory_hostname in groups['kube_node'] and kubelet_node_config_extra_args %}
{{ kubelet_node_config_extra_args | to_nice_yaml(indent=2) }}
{% endif %}
{% if kube_feature_gates %}
{% if kubelet_feature_gates or kube_feature_gates %}
featureGates:
{% for feature in kube_feature_gates %}
{% for feature in (kubelet_feature_gates | default(kube_feature_gates, true)) %}
{{ feature|replace("=", ": ") }}
{% endfor %}
{% endif %}
Expand Down Expand Up @@ -146,3 +146,6 @@ streamingConnectionIdleTimeout: {{ kubelet_streaming_connection_idle_timeout }}
{% if kubelet_make_iptables_util_chains is defined %}
makeIPTablesUtilChains: {{ kubelet_make_iptables_util_chains | bool }}
{% endif %}
{% if kubelet_seccomp_default is defined %}
seccompDefault: {{ kubelet_seccomp_default | bool }}
{% endif %}