Add support for backends which require client certificate (eg. NiFi)
authentication. The `proxy-ssl-secret` k8s annotation references a
secret which is used to authenticate to the backend server. All other
directives fine tune the backend communication.
The following annotations are supported:
* proxy-ssl-secret
* proxy-ssl-ciphers
* proxy-ssl-protocol
* proxy-ssl-verify
* proxy-ssl-verify-depth
add a way to configure the `proxy_cache_*` [1] directive for external-auth.
The user-defined cache_key may contain sensitive information
(e.g. Authorization header).
We want to store *only* a hash of that key, not the key itself on disk.
[1] http://nginx.org/en/docs/http/ngx_http_proxy_module.html#proxy_cache_key
Signed-off-by: Moritz Johner <beller.moritz@googlemail.com>
The fact that you need to explicitly add the annotation is easy to miss.
This makes this more explicit, while leaving the finer details to the
linked annotations document.
1. Session cookie is updated on previous attempt failure when `session-cookie-change-on-failure = true` (default value is `false`).
2. Added tests to check both cases.
3. Updated docs.
Co-Authored-By: Vladimir Grishin <yadolov@users.noreply.github.com>
IPv6 enabled/disabled working was confusing or contradicting itself. This updates the wording to what is expected, based on the default values in the table above, and the behaviour that I could find in code.
Move the "gzip-types" value default from the "use-gzip" to the "gzip-types"
heading, and link to it from use-gzip.
Document that the "use-gzip" default is "true", matching the style of other
configmap items.
In case some ingress have a syntax error in the snippet configuration,
the freshly generated configuration will not be reloaded to prevent tearing down existing rules.
Although, once inserted, this configuration is preventing from any other valid configuration to be inserted as it remains in the ingresses of the cluster.
To solve this problem, implement an optional validation webhook that simulates the addition of the ingress to be added together with the rest of ingresses.
In case the generated configuration is not validated by nginx, deny the insertion of the ingress.
In case certificates are mounted using kubernetes secrets, when those
changes, keys are automatically updated in the container volume, and the
controller reloads it using the filewatcher.
Related changes:
- Update vendors
- Extract useful functions to check configuration with an additional ingress
- Update documentation for validating webhook
- Add validating webhook examples
- Add a metric for each syntax check success and errors
- Add more certificate generation examples
Updates e2e test
Removes focus from e2e test
Fixes renamed function
Adds tests for new template funcs
Addresses gofmt
Updates e2e test, fixes custom-default-backend test by creating service
Updates docs
