🐙
NGINX Ingress Controller で 22番ポートを公開する
マニフェストをダウンロード
curl -LO https://raw.githubusercontent.com/kubernetes/ingress-nginx/controller-v1.5.1/deploy/static/provider/baremetal/deploy.yaml
公開ポートを追加
vim deploy.yaml
Service
のingress-nginx-controller
350行目あたりの - appProtocol: ssh
name: ssh
port: 22
protocol: TCP
targetPort: 22
を追記します。
apiVersion: v1
kind: Service
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.5.1
name: ingress-nginx-controller
namespace: ingress-nginx
spec:
ipFamilies:
- IPv4
ipFamilyPolicy: SingleStack
ports:
- appProtocol: http
name: http
port: 80
protocol: TCP
targetPort: http
- appProtocol: https
name: https
port: 443
protocol: TCP
targetPort: https
+ - appProtocol: ssh
+ name: ssh
+ port: 22
+ protocol: TCP
+ targetPort: 22
selector:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
type: NodePort
Deployment
のingress-nginx-controller
410行目あたりの - --tcp-services-configmap=$(POD_NAMESPACE)/tcp-services
と
- containerPort: 22
name: ssh
protocol: TCP
を追記します。
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
app.kubernetes.io/part-of: ingress-nginx
app.kubernetes.io/version: 1.5.1
name: ingress-nginx-controller
namespace: ingress-nginx
spec:
minReadySeconds: 0
revisionHistoryLimit: 10
selector:
matchLabels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
template:
metadata:
labels:
app.kubernetes.io/component: controller
app.kubernetes.io/instance: ingress-nginx
app.kubernetes.io/name: ingress-nginx
spec:
containers:
- args:
- /nginx-ingress-controller
- --election-id=ingress-nginx-leader
- --controller-class=k8s.io/ingress-nginx
- --ingress-class=nginx
- --configmap=$(POD_NAMESPACE)/ingress-nginx-controller
- --validating-webhook=:8443
- --validating-webhook-certificate=/usr/local/certificates/cert
- --validating-webhook-key=/usr/local/certificates/key
+ - --tcp-services-configmap=$(POD_NAMESPACE)/tcp-services
env:
- name: POD_NAME
valueFrom:
fieldRef:
fieldPath: metadata.name
- name: POD_NAMESPACE
valueFrom:
fieldRef:
fieldPath: metadata.namespace
- name: LD_PRELOAD
value: /usr/local/lib/libmimalloc.so
image: registry.k8s.io/ingress-nginx/controller:v1.5.1@sha256:4ba73c697770664c1e00e9f968de14e08f606ff961c76e5d7033a4a9c593c629
imagePullPolicy: IfNotPresent
lifecycle:
preStop:
exec:
command:
- /wait-shutdown
livenessProbe:
failureThreshold: 5
httpGet:
path: /healthz
port: 10254
scheme: HTTP
initialDelaySeconds: 10
periodSeconds: 10
successThreshold: 1
timeoutSeconds: 1
name: controller
ports:
- containerPort: 80
name: http
protocol: TCP
- containerPort: 443
name: https
protocol: TCP
- containerPort: 8443
name: webhook
protocol: TCP
+ - containerPort: 22
+ name: ssh
+ protocol: TCP
Service
に紐付ける
22番ポート宛のパケットをルーティングしたいK8s上のService
と紐付けるためのConfigMap
を作成します。
vim tcp-services.yaml
apiVersion: v1
kind: ConfigMap
metadata:
name: tcp-services
namespace: ingress-nginx
data:
22: "<namespace>/<service>:22"
"<namespace>/<service>:22"
には22番ポート宛のパケットをルーティングしたいK8s上のService
を記述します。
apply
する
yamlをkubectl apply -f deploy.yaml
kubectl apply -f tcp-services.yaml
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