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}, `uid`), ` and `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `gid`), ` for the `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `etcd`), ` user will be used in the RKE `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `config.yml`), ` to set the proper permissions for files and directories during installation time.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h4", {
"id": "create-etcd-user-and-group"
}, `Create `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "h4"
}, `etcd`), ` user and group`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `To create the `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `etcd`), ` user and group run the following console commands. The commands below use `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `52034`), ` for `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `uid`), ` and `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `gid`), ` are for example purposes. Any valid unused `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `uid`), ` or `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `gid`), ` could also be used in lieu of `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `52034`), `.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-bash"
}, `groupadd --gid 52034 etcd
useradd --comment "etcd service account" --uid 52034 --gid 52034 etcd --shell /usr/sbin/nologin
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Update the RKE `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `config.yml`), ` with the `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `uid`), ` and `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `gid`), ` of the `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `etcd`), ` user:`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-yaml"
}, `services:
etcd:
gid: 52034
uid: 52034
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h3", {
"id": "configure-default-service-account"
}, `Configure `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "h3"
}, `default`), ` Service Account`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h4", {
"id": "set-automountserviceaccounttoken-to-false-for-default-service-accounts"
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parentName: "h4"
}, `automountServiceAccountToken`), ` to `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "h4"
}, `false`), ` for `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "h4"
}, `default`), ` service accounts`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Kubernetes provides a default service account which is used by cluster workloads where no specific service account is assigned to the pod. Where access to the Kubernetes API from a pod is required, a specific service account should be created for that pod, and rights granted to that service account. The default service account should be configured such that it does not provide a service account token and does not have any explicit rights assignments.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `For each namespace including `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `default`), ` and `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `kube-system`), ` on a standard RKE install, the `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `default`), ` service account must include this value:`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-yaml"
}, `automountServiceAccountToken: false
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Save the following configuration to a file called `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `account_update.yaml`), `.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-yaml"
}, `apiVersion: v1
kind: ServiceAccount
metadata:
name: default
automountServiceAccountToken: false
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Create a bash script file called `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `account_update.sh`), `. Be sure to `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `chmod +x account_update.sh`), ` so the script has execute permissions.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-bash"
}, `#!/bin/bash -e
for namespace in $(kubectl get namespaces -A -o=jsonpath="{.items[*]['metadata.name']}"); do
kubectl patch serviceaccount default -n \${namespace} -p "$(cat account_update.yaml)"
done
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h3", {
"id": "configure-network-policy"
}, `Configure Network Policy`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h4", {
"id": "ensure-that-all-namespaces-have-network-policies-defined"
}, `Ensure that all Namespaces have Network Policies defined`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Running different applications on the same Kubernetes cluster creates a risk of one compromised application attacking a neighboring application. Network segmentation is important to ensure that containers can communicate only with those they are supposed to. A network policy is a specification of how selections of pods are allowed to communicate with each other and other network endpoints.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Network Policies are namespace scoped. When a network policy is introduced to a given namespace, all traffic not allowed by the policy is denied. However, if there are no network policies in a namespace all traffic will be allowed into and out of the pods in that namespace. To enforce network policies, a CNI (container network interface) plugin must be enabled. This guide uses `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "https://github.com/projectcalico/canal"
}, `Canal`), ` to provide the policy enforcement. Additional information about CNI providers can be found `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "https://www.suse.com/c/rancher_blog/comparing-kubernetes-cni-providers-flannel-calico-canal-and-weave/"
}, `here`), `.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Once a CNI provider is enabled on a cluster a default network policy can be applied. For reference purposes a `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `permissive`), ` example is provided below. If you want to allow all traffic to all pods in a namespace (even if policies are added that cause some pods to be treated as “isolated”), you can create a policy that explicitly allows all traffic in that namespace. Save the following configuration as `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `default-allow-all.yaml`), `. Additional `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "https://kubernetes.io/docs/concepts/services-networking/network-policies/"
}, `documentation`), ` about network policies can be found on the Kubernetes site.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("admonition", {
"type": "note"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "admonition"
}, `This `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `NetworkPolicy`), ` is just an example and is not recommended for production use.`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-yaml"
}, `---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: default-allow-all
spec:
podSelector: {}
ingress:
- {}
egress:
- {}
policyTypes:
- Ingress
- Egress
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Create a bash script file called `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `apply_networkPolicy_to_all_ns.sh`), `. Be sure to `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `chmod +x apply_networkPolicy_to_all_ns.sh`), ` so the script has execute permissions.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-bash"
}, `#!/bin/bash -e
for namespace in $(kubectl get namespaces -A -o=jsonpath="{.items[*]['metadata.name']}"); do
kubectl apply -f default-allow-all.yaml -n \${namespace}
done
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `Execute this script to apply the `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `default-allow-all.yaml`), ` configuration with the `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `permissive`), ` `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `NetworkPolicy`), ` to all namespaces.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h3", {
"id": "reference-hardened-rke-clusteryml-configuration"
}, `Reference Hardened RKE `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "h3"
}, `cluster.yml`), ` Configuration`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `The reference `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `cluster.yml`), ` is used by the RKE CLI that provides the configuration needed to achieve a hardened install of Rancher Kubernetes Engine (RKE). RKE install `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "https://rancher.com/docs/rke/latest/en/installation/"
}, `documentation`), ` is provided with additional details about the configuration items. This reference `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `cluster.yml`), ` does not include the required `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `nodes`), ` directive which will vary depending on your environment. Documentation for node configuration in RKE can be found `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "https://rancher.com/docs/rke/latest/en/config-options/nodes/"
}, `here`), `.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("admonition", {
"title": "Important:",
"type": "note"
}, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", {
parentName: "admonition"
}, `For a Kubernetes v1.18 cluster, the configuration `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `spec.volumes: 'ephemeral'`), ` should be removed from the `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("inlineCode", {
parentName: "p"
}, `PodSecurityPolicy`), `, since it's not supported in this Kubernetes release.`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-yaml"
}, `# If you intend to deploy Kubernetes in an air-gapped environment,
# please consult the documentation on how to configure custom RKE images.
# https://rancher.com/docs/rke/latest/en/installation/ .
# The nodes directive is required and will vary depending on your environment.
# Documentation for node configuration can be found here:
# https://rancher.com/docs/rke/latest/en/config-options/nodes/
nodes: []
services:
etcd:
image: ""
extra_args: {}
extra_binds: []
extra_env: []
win_extra_args: {}
win_extra_binds: []
win_extra_env: []
external_urls: []
ca_cert: ""
cert: ""
key: ""
path: ""
uid: 52034
gid: 52034
snapshot: false
retention: ""
creation: ""
backup_config: null
kube-api:
image: ""
extra_args: {}
extra_binds: []
extra_env: []
win_extra_args: {}
win_extra_binds: []
win_extra_env: []
service_cluster_ip_range: ""
service_node_port_range: ""
pod_security_policy: true
always_pull_images: false
secrets_encryption_config:
enabled: true
custom_config: null
audit_log:
enabled: true
configuration: null
admission_configuration: null
event_rate_limit:
enabled: true
configuration: null
kube-controller:
image: ""
extra_args:
feature-gates: RotateKubeletServerCertificate=true
tls-cipher-suites: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
bind-address: 127.0.0.1
extra_binds: []
extra_env: []
win_extra_args: {}
win_extra_binds: []
win_extra_env: []
cluster_cidr: ""
service_cluster_ip_range: ""
scheduler:
image: ""
extra_args:
tls-cipher-suites: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
bind-address: 127.0.0.1
extra_binds: []
extra_env: []
win_extra_args: {}
win_extra_binds: []
win_extra_env: []
kubelet:
image: ""
extra_args:
feature-gates: RotateKubeletServerCertificate=true
protect-kernel-defaults: true
tls-cipher-suites: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
extra_binds: []
extra_env: []
win_extra_args: {}
win_extra_binds: []
win_extra_env: []
cluster_domain: cluster.local
infra_container_image: ""
cluster_dns_server: ""
fail_swap_on: false
generate_serving_certificate: true
kubeproxy:
image: ""
extra_args: {}
extra_binds: []
extra_env: []
win_extra_args: {}
win_extra_binds: []
win_extra_env: []
network:
plugin: ""
options: {}
mtu: 0
node_selector: {}
update_strategy: null
authentication:
strategy: ""
sans: []
webhook: null
addons: |
# Upstream Kubernetes restricted PSP policy
# https://github.com/kubernetes/website/blob/564baf15c102412522e9c8fc6ef2b5ff5b6e766c/content/en/examples/policy/restricted-psp.yaml
apiVersion: policy/v1beta1
kind: PodSecurityPolicy
metadata:
name: restricted-noroot
spec:
privileged: false
# Required to prevent escalations to root.
allowPrivilegeEscalation: false
requiredDropCapabilities:
- ALL
# Allow core volume types.
volumes:
- 'configMap'
- 'emptyDir'
- 'projected'
- 'secret'
- 'downwardAPI'
# Assume that ephemeral CSI drivers & persistentVolumes set up by the cluster admin are safe to use.
- 'csi'
- 'persistentVolumeClaim'
- 'ephemeral'
hostNetwork: false
hostIPC: false
hostPID: false
runAsUser:
# Require the container to run without root privileges.
rule: 'MustRunAsNonRoot'
seLinux:
# This policy assumes the nodes are using AppArmor rather than SELinux.
rule: 'RunAsAny'
supplementalGroups:
rule: 'MustRunAs'
ranges:
# Forbid adding the root group.
- min: 1
max: 65535
fsGroup:
rule: 'MustRunAs'
ranges:
# Forbid adding the root group.
- min: 1
max: 65535
readOnlyRootFilesystem: false
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRole
metadata:
name: psp:restricted-noroot
rules:
- apiGroups:
- extensions
resourceNames:
- restricted-noroot
resources:
- podsecuritypolicies
verbs:
- use
---
apiVersion: rbac.authorization.k8s.io/v1
kind: ClusterRoleBinding
metadata:
name: psp:restricted-noroot
roleRef:
apiGroup: rbac.authorization.k8s.io
kind: ClusterRole
name: psp:restricted-noroot
subjects:
- apiGroup: rbac.authorization.k8s.io
kind: Group
name: system:serviceaccounts
- apiGroup: rbac.authorization.k8s.io
kind: Group
name: system:authenticated
---
apiVersion: networking.k8s.io/v1
kind: NetworkPolicy
metadata:
name: default-allow-all
spec:
podSelector: {}
ingress:
- {}
egress:
- {}
policyTypes:
- Ingress
- Egress
---
apiVersion: v1
kind: ServiceAccount
metadata:
name: default
automountServiceAccountToken: false
addons_include: []
system_images:
etcd: ""
alpine: ""
nginx_proxy: ""
cert_downloader: ""
kubernetes_services_sidecar: ""
kubedns: ""
dnsmasq: ""
kubedns_sidecar: ""
kubedns_autoscaler: ""
coredns: ""
coredns_autoscaler: ""
nodelocal: ""
kubernetes: ""
flannel: ""
flannel_cni: ""
calico_node: ""
calico_cni: ""
calico_controllers: ""
calico_ctl: ""
calico_flexvol: ""
canal_node: ""
canal_cni: ""
canal_controllers: ""
canal_flannel: ""
canal_flexvol: ""
weave_node: ""
weave_cni: ""
pod_infra_container: ""
ingress: ""
ingress_backend: ""
metrics_server: ""
windows_pod_infra_container: ""
ssh_key_path: ""
ssh_cert_path: ""
ssh_agent_auth: false
authorization:
mode: ""
options: {}
ignore_docker_version: false
kubernetes_version: ""
private_registries: []
ingress:
provider: ""
options: {}
node_selector: {}
extra_args: {}
dns_policy: ""
extra_envs: []
extra_volumes: []
extra_volume_mounts: []
update_strategy: null
http_port: 0
https_port: 0
network_mode: ""
cluster_name:
cloud_provider:
name: ""
prefix_path: ""
win_prefix_path: ""
addon_job_timeout: 0
bastion_host:
address: ""
port: ""
user: ""
ssh_key: ""
ssh_key_path: ""
ssh_cert: ""
ssh_cert_path: ""
monitoring:
provider: ""
options: {}
node_selector: {}
update_strategy: null
replicas: null
restore:
restore: false
snapshot_name: ""
dns: null
upgrade_strategy:
max_unavailable_worker: ""
max_unavailable_controlplane: ""
drain: null
node_drain_input: null
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h3", {
"id": "reference-hardened-rke-template-configuration"
}, `Reference Hardened RKE Template Configuration`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `The reference RKE template provides the configuration needed to achieve a hardened install of Kubernetes. RKE templates are used to provision Kubernetes and define Rancher settings. Follow the Rancher `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("a", {
parentName: "p",
"href": "/v2.6/pages-for-subheaders/installation-and-upgrade"
}, `documentation`), ` for additional installation and RKE template details.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-yaml"
}, `#
# Cluster Config
#
default_pod_security_policy_template_id: restricted-noroot
docker_root_dir: /var/lib/docker
enable_cluster_alerting: false
enable_cluster_monitoring: false
enable_network_policy: true
local_cluster_auth_endpoint:
enabled: true
name: ''
#
# Rancher Config
#
rancher_kubernetes_engine_config:
addon_job_timeout: 45
authentication:
strategy: x509
dns:
nodelocal:
ip_address: ''
node_selector: null
update_strategy: {}
enable_cri_dockerd: false
ignore_docker_version: true
#
# # Currently only nginx ingress provider is supported.
# # To disable ingress controller, set \`provider: none\`
# # To enable ingress on specific nodes, use the node_selector, eg:
# provider: nginx
# node_selector:
# app: ingress
#
ingress:
default_backend: false
default_ingress_class: true
http_port: 0
https_port: 0
provider: nginx
kubernetes_version: v1.21.8-rancher1-1
monitoring:
provider: metrics-server
replicas: 1
#
# If you are using calico on AWS
#
# network:
# plugin: calico
# calico_network_provider:
# cloud_provider: aws
#
# # To specify flannel interface
#
# network:
# plugin: flannel
# flannel_network_provider:
# iface: eth1
#
# # To specify flannel interface for canal plugin
#
# network:
# plugin: canal
# canal_network_provider:
# iface: eth1
#
network:
mtu: 0
options:
flannel_backend_type: vxlan
plugin: canal
rotate_encryption_key: false
#
# services:
# kube-api:
# service_cluster_ip_range: 10.43.0.0/16
# kube-controller:
# cluster_cidr: 10.42.0.0/16
# service_cluster_ip_range: 10.43.0.0/16
# kubelet:
# cluster_domain: cluster.local
# cluster_dns_server: 10.43.0.10
#
services:
scheduler:
extra_args:
tls-cipher-suites: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
bind-address: 127.0.0.1
etcd:
backup_config:
enabled: true
interval_hours: 12
retention: 6
safe_timestamp: false
timeout: 300
creation: 12h
extra_args:
election-timeout: 5000
heartbeat-interval: 500
retention: 72h
snapshot: false
uid: 52034
gid: 52034
kube_api:
always_pull_images: false
audit_log:
enabled: true
event_rate_limit:
enabled: true
pod_security_policy: true
secrets_encryption_config:
enabled: true
service_node_port_range: 30000-32767
kube-controller:
extra_args:
feature-gates: RotateKubeletServerCertificate=true
tls-cipher-suites: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
bind-address: 127.0.0.1
kubelet:
extra_args:
feature-gates: RotateKubeletServerCertificate=true
protect-kernel-defaults: true
tls-cipher-suites: TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256,TLS_ECDHE_ECDSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384,TLS_ECDHE_RSA_WITH_CHACHA20_POLY1305,TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_256_GCM_SHA384,TLS_RSA_WITH_AES_128_GCM_SHA256
fail_swap_on: false
generate_serving_certificate: true
ssh_agent_auth: false
upgrade_strategy:
max_unavailable_controlplane: '1'
max_unavailable_worker: 10%
windows_prefered_cluster: false
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h3", {
"id": "reference-hardened-cloud-config-configuration"
}, `Reference Hardened `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "h3"
}, `cloud-config`), ` Configuration`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("p", null, `A `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "p"
}, `cloud-config`), ` configuration file is generally used in cloud infrastructure environments to allow for configuration management of compute instances. The reference config configures SUSE Linux Enterprise Server (SLES), openSUSE Leap, Red Hat Enterprise Linux (RHEL) and Ubuntu operating system level settings needed before installing Kubernetes.`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h4", {
"id": "reference-hardened-cloud-config-for-suse-linux-enterprise-server-15-sles-15-and-opensuse-leap-15"
}, `Reference Hardened `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "h4"
}, `cloud-config`), ` for SUSE Linux Enterprise Server 15 (SLES 15) and openSUSE Leap 15`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-yaml"
}, `#cloud-config
system_info:
default_user:
groups:
- docker
write_files:
- path: "/etc/sysctl.d/90-kubelet.conf"
owner: root:root
permissions: '0644'
content: |
vm.overcommit_memory=1
vm.panic_on_oom=0
kernel.panic=10
kernel.panic_on_oops=1
kernel.keys.root_maxbytes=25000000
package_update: true
ssh_pwauth: false
runcmd:
# Docker should already be installed in SLES 15 SP3
- zypper install docker containerd
- systemctl daemon-reload
- systemctl enable docker.service
- systemctl start --no-block docker.service
- sysctl -p /etc/sysctl.d/90-kubelet.conf
- groupadd --gid 52034 etcd
- useradd --comment "etcd service account" --uid 52034 --gid 52034 etcd --shell /usr/sbin/nologin
`)), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("h4", {
"id": "reference-hardened-cloud-config-for-red-hat-enterprise-linux-8-rhel-8-and-ubuntu-2004-lts"
}, `Reference Hardened `, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("strong", {
parentName: "h4"
}, `cloud-config`), ` for Red Hat Enterprise Linux 8 (RHEL 8) and Ubuntu 20.04 LTS`), /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("pre", null, /*#__PURE__*/ (0,_mdx_js_react__WEBPACK_IMPORTED_MODULE_1__/* .mdx */ .kt)("code", {
parentName: "pre",
"className": "language-yaml"
}, `#cloud-config
system_info:
default_user:
groups:
- docker
write_files:
- path: "/etc/sysctl.d/90-kubelet.conf"
owner: root:root
permissions: '0644'
content: |
vm.overcommit_memory=1
vm.panic_on_oom=0
kernel.panic=10
kernel.panic_on_oops=1
kernel.keys.root_maxbytes=25000000
package_update: true
ssh_pwauth: false
runcmd:
# Install Docker from Rancher's Docker installation scripts - github.com/rancher/install-docker
- curl https://releases.rancher.com/install-docker/20.10.sh | sh
- sysctl -p /etc/sysctl.d/90-kubelet.conf
- groupadd --gid 52034 etcd
- useradd --comment "etcd service account" --uid 52034 --gid 52034 etcd --shell /usr/sbin/nologin
`)));
}
MDXContent.isMDXComponent = true;
/***/ })
}]);
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