dhall-kubernetes/examples/ingress.dhall
Gabriel Gonzalez 381306bcc3
Go back to using --omitNull instead of --omitEmpty (#110)
Fixes https://github.com/dhall-lang/dhall-kubernetes/issues/86

The motivation of this is to more accurately model the Kubernetes
API semantics by not auto-omitting empty fields.  This is because
a field set to `Some ([] : List T)` is not necessarily the same
as `None (List T)`.

This makes the typical case a bit more verbose (more `Some`s), but
the difference to the `./examples` shows that it's not too bad.
2020-01-31 06:52:20 -08:00

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let Prelude =
../Prelude.dhall sha256:771c7131fc87e13eb18f770a27c59f9418879f7e230ba2a50e46f4461f43ec69
let map = Prelude.List.map
let kubernetes =
../package.dhall sha256:39fa32f6cbdd341cfd2be0aec017c7f6eb554a58bf0262ae222badf3b9c348c0
let Service = { name : Text, host : Text, version : Text }
let services = [ { name = "foo", host = "foo.example.com", version = "2.3" } ]
let makeTLS
: Service → kubernetes.IngressTLS.Type
= λ(service : Service)
→ { hosts = Some [ service.host ]
, secretName = Some "${service.name}-certificate"
}
let makeRule
: Service → kubernetes.IngressRule.Type
= λ(service : Service)
→ { host = Some service.host
, http = Some
{ paths =
[ { backend =
{ serviceName = service.name
, servicePort = kubernetes.IntOrString.Int 80
}
, path = None Text
}
]
}
}
let mkIngress
: List Service → kubernetes.Ingress.Type
= λ(inputServices : List Service)
→ let annotations =
toMap
{ `kubernetes.io/ingress.class` = "nginx"
, `kubernetes.io/ingress.allow-http` = "false"
}
let defaultService =
{ name = "default"
, host = "default.example.com"
, version = " 1.0"
}
let ingressServices = inputServices # [ defaultService ]
let spec =
kubernetes.IngressSpec::{
, tls = Some
( map
Service
kubernetes.IngressTLS.Type
makeTLS
ingressServices
)
, rules = Some
( map
Service
kubernetes.IngressRule.Type
makeRule
ingressServices
)
}
in kubernetes.Ingress::{
, metadata = kubernetes.ObjectMeta::{
, name = "nginx"
, annotations = Some annotations
}
, spec = Some spec
}
in mkIngress services