I'm trying to redirect http://www... and https://www... to https://... using ingress-nginx. How can I do that?
I've tried adding the following custom configuration using the annotation nginx.ingress.kubernetes.io/server-snippet
and nginx.ingress.kubernetes.io/configuration-snippet
:
# 1
if($host = "www.example.com") {
return 308 https://example.com$request_uri;
}
# 2
server {
server_name www.example.com;
return 308 https://example.com$request_uri;
}
# 3
server_name www.example.com;
return 308 https://example.com$request_uri;
But I get an error in the nginx controller logs for #1:
2019/12/07 20:58:47 [emerg] 48898#48898: unknown directive "if($host" in /tmp/nginx-cfg775816039:418
nginx: [emerg] unknown directive "if($host" in /tmp/nginx-cfg775816039:418
nginx: configuration file /tmp/nginx-cfg775816039 test failed
For #2 I get an error that the server block is not allowed at that position and using #3 leads to infinite redirects. My ingress yaml looks like this:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: ingress-nginx
annotations:
kubernetes.io/ingress.class: "nginx"
kubernetes.io/ingress.global-static-ip-name: "example-com"
nginx.ingress.kubernetes.io/rewrite-target: "/"
nginx.ingress.kubernetes.io/ssl-redirect: "true"
nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
nginx.ingress.kubernetes.io/proxy-read-timeout: "86400s"
nginx.ingress.kubernetes.io/proxy-send-timeout: "86400s"
nginx.ingress.kubernetes.io/proxy-body-size: "100m"
nginx.ingress.kubernetes.io/limit-rps: "20"
nginx.ingress.kubernetes.io/client-max-body-size: "100m"
nginx.ingress.kubernetes.io/configuration-snippet: |
# see above
spec:
tls:
- hosts:
- example.com
secretName: certificate-secret
rules:
- host: sub.example.com
http:
paths:
- backend:
serviceName: service-sub
servicePort: 1234
# more subdomains here
- host: example.com
http:
paths:
- backend:
serviceName: service-example
servicePort: 1235
- host: "*.example.com"
http:
paths:
- backend:
serviceName: service-example-wildcard
servicePort: 1236
I've also tried setting the nginx.ingress.kubernetes.io/from-to-www-redirect: "true"
annotation, but that leads to a different error:
2019/12/07 21:20:34 [emerg] 51558#51558: invalid server name or wildcard "www.*.example.com" on 0.0.0.0:80
nginx: [emerg] invalid server name or wildcard "www.*.example" on 0.0.0.0:80
nginx: configuration file /tmp/nginx-cfg164546048 test failed
Ok I got it. The missing space after if
fixed it. Thank you mdaniel :) Here is a working configuration that redirects anything to https://...
without www
:
apiVersion: extensions/v1beta1
kind: Ingress
metadata:
name: ingress-nginx-integration
namespace: integration
annotations:
kubernetes.io/ingress.class: "nginx"
kubernetes.io/ingress.global-static-ip-name: "example-com"
nginx.ingress.kubernetes.io/rewrite-target: "/"
nginx.ingress.kubernetes.io/ssl-redirect: "true"
nginx.ingress.kubernetes.io/force-ssl-redirect: "true"
nginx.ingress.kubernetes.io/proxy-read-timeout: "86400s"
nginx.ingress.kubernetes.io/proxy-send-timeout: "86400s"
nginx.ingress.kubernetes.io/proxy-body-size: "100m"
nginx.ingress.kubernetes.io/limit-rps: "20"
nginx.ingress.kubernetes.io/client-max-body-size: "100m"
nginx.ingress.kubernetes.io/configuration-snippet: |
if ($host = "www.example.com") {
return 308 https://example.com$request_uri;
}
spec:
tls:
- hosts:
- example.com
secretName: certificate-integration-secret
rules:
- host: subdomain.example.com
http:
paths:
- backend:
serviceName: service-emviwiki
servicePort: 4000
# ... more rules, NO www here