I have a tomcat image with deployed SampleWebApp.war in conf/webapps
I am deploying this image inside pod on kubernetes cluster.
I want to expose clusterIP service pointing to tomcat application through ingress controller.
I can't use "/" in my ingress controller for redirection as already another application is using same host and path "/"
I tried giving path as "tomcat" . but it is not accessible when i tried to open UI on web
Below are my yaml's. can someone suggest what can be done here ?
Deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
name: tomcatinfra
namespace: tomcat
spec:
replicas: 1
selector:
matchLabels:
app: tomcatinfra
template:
metadata:
name: tomcatinfra
labels:
app: tomcatinfra
spec:
containers:
- image: saravak/tomcat8
name: tomcatapp
Sevice.yaml
kind: Service
apiVersion: v1
metadata:
name: tomcat-service
namespace: tomcat
spec:
type: ClusterIP
selector:
app: tomcatinfra
ports:
- protocol: TCP
port: 3000
targetPort: 8080
Ingress :
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: tomcat
namespace: tomcat
spec:
rules:
- host: build.com
http:
paths:
- backend:
serviceName: tomcat-service
servicePort: 8080
path: /tomcat
pathType: ImplementationSpecific
Try adding the annotation of ingress class
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: ingress
annotations:
kubernetes.io/ingress.class: "nginx"
spec:
rules:
- host: "foo.bar.com"
http:
paths:
- pathType: Prefix
path: /tomcat
backend:
service:
name: service1
port:
number: 80
Related
I'm trying to deploy an ASP-Net Core API and make it available from outside cluster trough an ingress. I have followed the steps mentioned in the learn page. All the steps are working fine, however, I'm unable to access my ingress on the route /api/opportunities/. Below I'm describing my K8S files, might I be missing something?
apiVersion: apps/v1
kind: Deployment
metadata:
name: opportunities-api
spec:
replicas: 1
selector:
matchLabels:
component: opportunities-api
template:
metadata:
labels:
component: opportunities-api
spec:
containers:
- name: opportunities-api
image: mycontainer.azurecr.io/opportunities-api:{BUILD_NO}
imagePullPolicy: Always
ports:
- containerPort: 80
apiVersion: v1
kind: Service
metadata:
name: opportunities-api
spec:
ports:
- port : 80
protocol: TCP
targetPort: 80
selector:
component: opportunities-api
type: ClusterIP
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: opportunities-api
annotations:
nginx.ingress.kubernetes.io/ssl-redirect: "false"
nginx.ingress.kubernetes.io/use-regex: "true"
nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
ingressClassName: nginx
rules:
- http:
paths:
- path: /api(/|$)(.*)
pathType: Prefix
backend:
service:
name: opportunities-api
port:
number: 80
I see that host field is missing in above ingress yaml. Did you try adding .spec.rules.host in the ingress yaml as below and see if it helps?
As per the nginx document, it is one of the restrictions.
Also, if AKS v>=1.24, then can you check what is the value set for annotation service.beta.kubernetes.io/azure-load-balancer-health-probe-request-path in ingress controller service. It should be /healthz as discussed in AKS Ingress-Nginx ingress controller failing to route by host
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: opportunities-api
annotations:
nginx.ingress.kubernetes.io/ssl-redirect: "false"
nginx.ingress.kubernetes.io/use-regex: "true"
nginx.ingress.kubernetes.io/rewrite-target: /$2
spec:
ingressClassName: nginx
rules:
- host: abc.com #your host name here
http:
paths:
- path: /api(/|$)(.*)
pathType: Prefix
backend:
service:
name: opportunities-api
port:
number: 80
I have tried using jetstack/cert-manager to secure my application launched on EKS but I still see a Not Secure I am not sure what i missed. Here is what i have done
apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
name: letsencrypt-production
spec:
acme:
server: https://acme-v02.api.letsencrypt.org/directory
email: something#gmail.com
privateKeySecretRef:
name: letsencrypt-production
solvers:
- http01:
ingress:
class: nginx
My manifest looks as follows
apiVersion: apps/v1
kind: Deployment
metadata:
name: wordpress
spec:
replicas: 1
selector:
matchLabels:
app: wordpress
template:
metadata:
labels:
app: wordpress
spec:
containers:
- name: wordpress
image: wordpress:latest
ports:
- containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
name: wordpress
spec:
selector:
app: wordpress
ports:
- protocol: TCP
port: 80
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: wordpress
annotations:
kubernetes.io/ingress.class: nginx
cert-manager.io/cluster-issuer: letsencrypt-production
spec:
rules:
- http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: wordpress
port:
number: 80
tls:
- hosts:
- mydomain.com
secretName: letsencrypt-production
When i do
kubectl describe certificate letsencrypt-production
I dont see anything under events like Issued or Requested
Status:
Conditions:
Last Transition Time: 2022-12-22T06:04:30Z
Message: Certificate is up to date and has not expired
Observed Generation: 1
Reason: Ready
Status: True
Type: Ready
Not After: 2023-03-21T11:04:22Z
Not Before: 2022-12-21T11:04:23Z
Renewal Time: 2023-02-19T11:04:22Z
Events: <none>
When i open my domain i see NET::ERR_CERT_AUTHORITY_INVALID
What did i miss any help ?
I can get it to work by creating a cluster-issuer
apiVersion: cert-manager.io/v1
kind: ClusterIssuer
metadata:
name: letsencrypt-production
spec:
acme:
server: https://acme-v02.api.letsencrypt.org/directory
email: <my_email_id>
privateKeySecretRef:
name: letsencrypt-production
solvers:
- http01:
ingress:
class: nginx
creating an ingress resource as follows.
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: wordpress
annotations:
kubernetes.io/ingress.class: nginx
cert-manager.io/cluster-issuer: letsencrypt-production
spec:
rules:
- host: mydomain.com
http:
paths:
- backend:
service:
name: wordpress
port:
number: 80
path: /
pathType: Prefix
tls:
- hosts:
- mydomain.com
secretName: letsencrypt-production
How does one add a custom response header to traefik ingress on a K3S ?
I have followed the official doc and a few answers from stackoverflow. But none seems to work.
Here is my ingress:
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: traeffic-custom-response-header
namespace: mynamespace
annotations:
kubernetes.io/ingress.class: traefik
traefik.ingress.kubernetes.io/custom-response-headers: Bypass-Tunnel-Reminder:true
ingress.kubernetes.io/custom-response-headers: Bypass-Tunnel-Reminder:true
spec:
rules:
- host: localhost
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: scc-worker
port:
number: 8000
I am running a local K3S cluster on my PC for testing.
And I am not able to add custom response header.
Ok, I solved this issue by adding middleware and then configuring it in my Ingress Controller Configuration
---
apiVersion: traefik.containo.us/v1alpha1
kind: Middleware
metadata:
name: add-bypass-tunnel-header
namespace: mynamespace
spec:
headers:
customResponseHeaders:
Bypass-Tunnel-Reminder: "true"
---
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: traeffic-custom-request-header
namespace: mynamespace
annotations:
kubernetes.io/ingress.class: traefik
traefik.ingress.kubernetes.io/router.entrypoints: web
traefik.ingress.kubernetes.io/router.middlewares: mynamespace-add-bypass-tunnel-header#kubernetescrd
traefik.ingress.kubernetes.io/custom-response-headers: Bypass-Tunnel-Reminder:true
ingress.kubernetes.io/custom-response-headers: Bypass-Tunnel-Reminder:true
spec:
rules:
- host: localhost
http:
paths:
- path: /
pathType: Prefix
backend:
service:
name: scc-worker
port:
number: 8000
Here add-bypass-tunnel-header is a middle ware being created
And then adding it to traefik ingress by traefik.ingress.kubernetes.io/router.middlewares: mynamespace-add-bypass-tunnel-header#kubernetescrd annotation
I'm trying to run a Vue.js frontend service into nginx-ingress enabled kubernetes cluster. The application has 4 routes, /, /foo/, /bar and /about. If I access the application and refresh the page in any route besides /, I get a 404 error from nginx ingress.
I'm using kubernetes version v1.18.2 (both client and server). The cluster was created by the kind (kubernetes in docker program) and I setup the ingress following their documentation at https://kind.sigs.k8s.io/docs/user/ingress/#ingress-nginx. The example application I'm using is this one: https://github.com/ovitor/foo
Here are the deployments, services and ingress used.
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: foo
name: foo
spec:
replicas: 1
selector:
matchLabels:
app: foo
template:
metadata:
labels:
app: foo
spec:
containers:
- image: vcml10/foo:latest
name: foo
ports:
- containerPort: 80
---
apiVersion: v1
kind: Service
metadata:
labels:
app: foo
name: foo
spec:
ports:
- name: http
port: 80
protocol: TCP
selector:
app: foo
---
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: foo-ingress
spec:
rules:
- http:
paths:
- path: /
backend:
serviceName: foo
servicePort: 80
What I'm doing wrong?
I think that's because you have path only for /.
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: foo-ingress
spec:
rules:
- http:
paths:
- path: /
backend:
serviceName: foo
servicePort: 80
If you want to make it work for / /foo/ /bar and /about you would have to add additional paths.
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: foo-ingress
spec:
rules:
- http:
paths:
- path: /
backend:
serviceName: foo
servicePort: 80
- path: /foo
backend:
serviceName: foo
servicePort: 80
- path: /bar
backend:
serviceName: foo
servicePort: 80
- path: /about
backend:
serviceName: foo
servicePort: 80
OR
Use regex as mentioned in the nginx ingress documentation
apiVersion: networking.k8s.io/v1beta1
kind: Ingress
metadata:
name: test-ingress
annotations:
nginx.ingress.kubernetes.io/use-regex: "true"
spec:
rules:
- host: test.com
http:
paths:
- path: /foo/.*
backend:
serviceName: test
servicePort: 80
Additionally you can take a look at rewrite annotation.
Hope this helps.
Im currently trying to create an ingress, following the ssl-termination approach, which allows me to connect to a service both via http and https.
I managed to create a working ingress for http, partly for https, but not both together..
heres my config
Ingress Controller: Deployment & Service
apiVersion: extensions/v1beta1
kind: Deployment
metadata:
name: nginx-ingress-controller
spec:
replicas: 1
revisionHistoryLimit: 3
template:
metadata:
labels:
k8s-app: nginx-ingress-lb
spec:
containers:
- args:
- /nginx-ingress-controller
- "--default-backend-service=$(POD_NAMESPACE)/default-http-backend"
env:
<!-- default-config ommitted -->
image: "quay.io/kubernetes-ingress-controller/nginx-ingress-controller:0.9.0-beta.17"
imagePullPolicy: Always
livenessProbe:
<!-- omitted -->
name: nginx-ingress-controller
ports:
- containerPort: 80
name: http
protocol: TCP
- containerPort: 443
name: https
protocol: TCP
volumeMounts:
- mountPath: /etc/nginx-ssl/tls
name: tls-vol
terminationGracePeriodSeconds: 60
volumes:
- name: tls-vol
secret:
secretName: tls-test-project-secret
---
apiVersion: v1
kind: Service
metadata:
name: nginx-ingress
spec:
type: NodePort
ports:
- name: http
port: 80
targetPort: http
nodePort: 31115
- name: https
port: 443
targetPort: https
nodePort: 31116
selector:
k8s-app: nginx-ingress-lb
Ingress
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: nginx-ingress
annotations:
kubernetes.io/ingress.class: "nginx"
ingress.kubernetes.io/secure-backends: "false"
# modified this to false for http & https-scenario
ingress.kubernetes.io/ssl-redirect: "true"
# modified this to false for http & https-scenario
nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
ingress.kubernetes.io/add-base-url: "true"
spec:
tls:
- hosts:
- author.k8s-test
secretName: tls-test-project-secret
rules:
- host: author.k8s-test
http:
paths:
- path: /
backend:
serviceName: cms-author
servicePort: 8080
Backend - Service
apiVersion: v1
kind: Service
metadata:
name: cms-author
spec:
selector:
run: cms-author
ports:
- name: http
protocol: TCP
port: 8080
targetPort: 8080
Backend-Deployment:
apiVersion: apps/v1
kind: Deployment
metadata:
name: cms-author
spec:
selector:
matchLabels:
run: cms-author
replicas: 1
template:
metadata:
labels:
run: cms-author
spec:
containers:
- name: cms-author
image: <someDockerRegistryUrl>/magnolia:kube-dev
imagePullPolicy: Always
ports:
- containerPort: 8080
I have several issues, when follwing the https only scenario, i can reach the application via the ingress https nodePort, but cant login, as the follwing request goes via http instead of https.. If i put manually https before the url in browser, it is working again and any further request goes via https., but I dont know why :(
The final setting (supporting http and https) is completely not working, as if I try to access the app via http-nodePort of Ingress, it always redirects to ssl, but in this scenario, I configured to ssl-redirect to false, but still not working.
I have read many posts on github, dealing with that, but none of them worked for me
I've changed the nginx-controller images from gce_containers to quay.io, also not working
I've tried some older versions, also not working.
Deploy the nginx ingress controller from the official kubernetes charts repo https://github.com/kubernetes/charts/tree/master/stable/nginx-ingress by setting the helm arguments controller.service.targetPorts.https and controller.service.nodePorts.https. Once they are set, the appropriate NodePort (443) will be configured by helm.
Helm uses the YAML files in https://github.com/kubernetes/charts/tree/master/stable/nginx-ingress/templates.
Along with the nginx ingress controller, you'll need an ingress resource too. Refer https://github.com/nginxinc/kubernetes-ingress/tree/master/examples/complete-example for examples.