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c4k-website/src/main/cljc/dda/c4k_website/ingress_cert.cljc

80 lines
3.3 KiB
Clojure

(ns dda.c4k-website.ingress-cert
(:require
[clojure.spec.alpha :as s]
#?(:cljs [shadow.resource :as rc])
#?(:clj [orchestra.core :refer [defn-spec]]
:cljs [orchestra.core :refer-macros [defn-spec]])
#?(:clj [clojure.edn :as edn]
:cljs [cljs.reader :as edn])
[dda.c4k-common.yaml :as yaml]
[dda.c4k-common.common :as cm]
[dda.c4k-common.predicate :as pred]
[clojure.string :as str]))
(s/def ::issuer pred/letsencrypt-issuer?)
(s/def ::service-name string?)
(s/def ::app-name string?)
(s/def ::ingress-name string?)
(s/def ::cert-name string?)
(s/def ::service-port pos-int?)
(s/def ::fqdns (s/coll-of pred/fqdn-string?))
(def ingress? (s/keys :req-un [::fqdns ::app-name ::ingress-name ::service-name ::service-port]
:opt-un [::issuer ::cert-name]))
(def certificate? (s/keys :req-un [::fqdns ::app-name ::cert-name]
:opt-un [::issuer]))
#?(:cljs
(defmethod yaml/load-resource :ingress [resource-name]
(case resource-name
"ingress/host-rule.yaml" (rc/inline "ingress/host-rule.yaml")
"ingress/certificate.yaml" (rc/inline "ingress/certificate.yaml")
"ingress/http-ingress.yaml" (rc/inline "ingress/http-ingress.yaml")
"ingress/https-ingress.yaml" (rc/inline "ingress/https-ingress.yaml")
(throw (js/Error. "Undefined Resource!")))))
(defn-spec generate-host-rule pred/map-or-seq?
[service-name ::service-name
service-port ::service-port
fqdn pred/fqdn-string?]
(->
(yaml/load-as-edn "ingress/host-rule.yaml")
(cm/replace-all-matching-values-by-new-value "FQDN" fqdn)
(cm/replace-all-matching-values-by-new-value "SERVICE_PORT" service-port)
(cm/replace-all-matching-values-by-new-value "SERVICE_NAME" service-name)))
(defn-spec generate-http-ingress pred/map-or-seq?
[config ingress?]
(let [{:keys [ingress-name service-name service-port fqdns app-name]} config]
(->
(yaml/load-as-edn "ingress/http-ingress.yaml")
(assoc-in [:metadata :name] ingress-name)
(assoc-in [:metadata :labels :app.kubernetes.part-of] app-name)
(assoc-in [:spec :rules] (mapv (partial generate-host-rule service-name service-port) fqdns)))))
(defn-spec generate-https-ingress pred/map-or-seq?
[config ingress?]
(let [{:keys [ingress-name cert-name service-name service-port fqdns app-name]} config]
(->
(yaml/load-as-edn "ingress/https-ingress.yaml")
(assoc-in [:metadata :name] ingress-name)
(assoc-in [:metadata :labels :app.kubernetes.part-of] app-name)
(assoc-in [:spec :tls 0 :secretName] cert-name)
(assoc-in [:spec :tls 0 :hosts] fqdns)
(assoc-in [:spec :rules] (mapv (partial generate-host-rule service-name service-port) fqdns)))))
(defn-spec generate-certificate pred/map-or-seq?
[config certificate?]
(let [{:keys [cert-name issuer fqdns app-name]
:or {issuer "staging"}} config
letsencrypt-issuer (name issuer)]
(->
(yaml/load-as-edn "ingress/certificate.yaml")
(assoc-in [:metadata :name] cert-name)
(assoc-in [:metadata :labels :app.kubernetes.part-of] app-name)
(assoc-in [:spec :secretName] cert-name)
(assoc-in [:spec :commonName] (first fqdns))
(assoc-in [:spec :dnsNames] fqdns)
(assoc-in [:spec :issuerRef :name] letsencrypt-issuer))))