nginx ing

tut/k8s/ing/nginx/README.md

@@ -0,0 +1,87 @@
+Check suitable version
+```bash
+helm repo add ingress-nginx https://kubernetes.github.io/ingress-nginx
+helm search repo ingress-nginx --versions
+```
+
+
+Install
+```bash
+CHART_VERSION="4.10.0"
+APP_VERSION="1.10.0"
+
+helm template ingress-nginx ingress-nginx \
+--repo https://kubernetes.github.io/ingress-nginx \
+--version ${CHART_VERSION} \
+--namespace ingress-nginx \
+> ./nginx-ingress.${APP_VERSION}.yaml
+
+kubectl apply -f ./nginx-ingress.${APP_VERSION}.yaml
+
+kubectl -n ingress-nginx get pods
+
+```
+
+
+Should now see
+```bash
+kubectl -n ingress-nginx get pods
+
+NAME                                        READY   STATUS              RESTARTS   AGE
+ingress-nginx-admission-create-47sz6        0/1     Completed           0          44s
+ingress-nginx-admission-patch-5862j         0/1     Completed           1          44s
+ingress-nginx-controller-55474d95c5-6w42r   0/1     ContainerCreating   0          44s
+```
+
+
+deploy services
+
+```bash
+k apply -f ing-svc-a.yaml
+
+# quick check by portforwarding
+kubectl port-forward svc/service-a 8080:80
+
+Forwarding from 127.0.0.1:8080 -> 80
+Forwarding from [::1]:8080 -> 80
+Handling connection for 8080
+```
+
+
+
+update `/etc/hosts` to point to local - required sudo
+```bash
+127.0.0.1 kubernetes.docker.internal
+127.0.0.1 public.service-a.com
+127.0.0.1 public.service-b.com
+```
+
+test the ingress
+```bash
+curl -ik https://public.service-a.com/path-a.html
+
+HTTP/2 200
+date: Wed, 13 Mar 2024 17:28:46 GMT
+content-type: text/html
+content-length: 28
+last-modified: Wed, 13 Mar 2024 15:00:04 GMT
+etag: "65f1bf74-1c"
+accept-ranges: bytes
+strict-transport-security: max-age=31536000; includeSubDomains
+
+"/path-a.html" on service-a
+```
+
+
+Tailing ingress logs
+```bash
+k logs -f -n ingress-nginx ingress-nginx-controller-55474d95c5-6w42r
+
+192.168.65.3 - - [13/Mar/2024:15:14:16 +0000] "GET /path-a.html HTTP/2.0" 200 28 "-" "curl/8.4.0" 44 0.001 [default-service-a-80] [] 10.1.0.62:80 28 0.001 200 099a66ec2835412b7cbfebdf37282d4b
+```
+
+
+- deploy more service
+- route by domain
+- SSL termination
+- extra configs - via ConfigMap - https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap

tut/k8s/ing/nginx/ing-svc-a.yaml

@@ -0,0 +1,17 @@
+apiVersion: networking.k8s.io/v1
+kind: Ingress
+metadata:
+  name: service-a
+spec:
+  ingressClassName: nginx
+  rules:
+  - host: public.service-a.com
+    http:
+      paths:
+      - path: /
+        pathType: Prefix
+        backend:
+          service:
+            name: service-a
+            port:
+              number: 80

tut/k8s/ing/nginx/ingress-nginx-controller-cfgmap.yaml

@@ -0,0 +1,60 @@
+apiVersion: v1
+items:
+- apiVersion: v1
+  data:
+    allow-snippet-annotations: "false"
+  kind: ConfigMap
+  metadata:
+    annotations:
+      kubectl.kubernetes.io/last-applied-configuration: |
+        {"apiVersion":"v1","data":{"allow-snippet-annotations":"false"},"kind":"ConfigMap","metadata":{"annotations":{},"labels":{"app.kubernetes.io/component":"controller","app.kubernetes.io/instance":"ingress-nginx","app.kubernetes.io/managed-by":"Helm","app.kubernetes.io/name":"ingress-nginx","app.kubernetes.io/part-of":"ingress-nginx","app.kubernetes.io/version":"1.10.0","helm.sh/chart":"ingress-nginx-4.10.0"},"name":"ingress-nginx-controller","namespace":"ingress-nginx"}}
+    creationTimestamp: "2024-03-13T14:44:33Z"
+    labels:
+      app.kubernetes.io/component: controller
+      app.kubernetes.io/instance: ingress-nginx
+      app.kubernetes.io/managed-by: Helm
+      app.kubernetes.io/name: ingress-nginx
+      app.kubernetes.io/part-of: ingress-nginx
+      app.kubernetes.io/version: 1.10.0
+      helm.sh/chart: ingress-nginx-4.10.0
+    name: ingress-nginx-controller
+    namespace: ingress-nginx
+    resourceVersion: "143334"
+    uid: f9cc1b58-8e25-4f57-8fc5-6b189b9e2f0e
+- apiVersion: v1
+  data:
+    ca.crt: |
+      -----BEGIN CERTIFICATE-----
+      MIIDBTCCAe2gAwIBAgIIe5ElpERcitIwDQYJKoZIhvcNAQELBQAwFTETMBEGA1UE
+      AxMKa3ViZXJuZXRlczAeFw0yNDAyMDcyMTA5NDRaFw0zNDAyMDQyMTE0NDRaMBUx
+      EzARBgNVBAMTCmt1YmVybmV0ZXMwggEiMA0GCSqGSIb3DQEBAQUAA4IBDwAwggEK
+      AoIBAQCxeC3lFm5pGuejuf4qbNA97wGGYUhiJTCcK/gD1V0Vcala6A3pefa0CqQH
+      4bx4bHbwnhCvDDlXBsorPCLyqU6aUSCDR4HiQEari2hfBQOgNSn/fMLt3JORaVKq
+      Ef1LVt/vgWPGL0uUQ4NfQMZNbMCQPnExJuDDd1ffJXnJ7JkrfH46wTBVb6npwxBT
+      oK6VeiI30zLjyHGrW7epO49NUQeGueaDm8J6vRol8SYfoxIP7mLKoGj+txKC78l1
+      +Y1pJ+LGykpeq8jeyCNj1Y6GIe9npY+J3dR2aOdyws2gzYm/WdZbuhXinfDJTzt8
+      Wi3xOyF47iiJtLjWW3XVkC2PumoLAgMBAAGjWTBXMA4GA1UdDwEB/wQEAwICpDAP
+      BgNVHRMBAf8EBTADAQH/MB0GA1UdDgQWBBQ5XHN0JzB0G9RI/9rSq4FvOX8GoTAV
+      BgNVHREEDjAMggprdWJlcm5ldGVzMA0GCSqGSIb3DQEBCwUAA4IBAQAJq7EqVbN6
+      ItTITvZDo+7WvFjtPAdZ0j0snKtwoVwYCd5ks3fsh2+5L+6GLRLOOPhIzD6F7/18
+      RTrY+qrSZiGk2PUVdfBECcAYHV+lvkq6OpLVZsrfPBD2wIPYGp2baeLLeIPXaLYe
+      BZ/+M7r94+XRTonpeJkMJyedUlHrfOtReokI7OgVkDEEHnbDUSu01zFagRG7Tcyc
+      VvYKrk9PTi/vD+QIPLpX3RnZ5OxvSkQ8u/PXgjfjvCxd4Vvh5UqeQLHPDQST/qyA
+      MQMo0pI+oQATtIP4KAAsv7Ub15hVFhcjnlyQs3zMchuqgLEOq3K/pkieIP5JINTr
+      xt1PafI3UBuB
+      -----END CERTIFICATE-----
+  kind: ConfigMap
+  metadata:
+    annotations:
+      kubernetes.io/description: Contains a CA bundle that can be used to verify the
+        kube-apiserver when using internal endpoints such as the internal service
+        IP or kubernetes.default.svc. No other usage is guaranteed across distributions
+        of Kubernetes clusters.
+    creationTimestamp: "2024-03-13T14:44:28Z"
+    name: kube-root-ca.crt
+    namespace: ingress-nginx
+    resourceVersion: "143327"
+    uid: 6eca69a8-3266-4486-a8c2-d30e100c0642
+kind: List
+metadata:
+  resourceVersion: ""