1 files changed, 169 insertions, 0 deletions
diff --git a/configuration.nix b/configuration.nix
new file mode 100644
index 0000000..d39fb56
--- /dev/null
+++ b/configuration.nix
@@ -0,0 +1,169 @@
+{ type ? "dev" }:
+
+let
+  kubeVersion = "1.18";
+
+  helloApp = rec {
+    label = "hello";
+    port  = 3000;
+
+    cpu = if type == "dev"
+    then "100m"
+    else "1000m";
+
+    imagePolicy = if type == "dev"
+    then "Never"
+    else "IfNotPresent";
+
+    env = [
+      { name = "APP_PORT"; value = "${toString port}"; }
+      { name = "HOST"; value = "0.0.0.0"; }
+      { name = "PORT"; value = "${toString port}"; }
+    ];
+  };
+
+  worldApp = rec {
+    label = "world";
+    port  = 3000;
+
+    cpu = if type == "dev"
+    then "100m"
+    else "1000m";
+
+    imagePolicy = if type == "dev"
+    then "Never"
+    else "IfNotPresent";
+
+    env = [
+      { name = "APP_PORT"; value = "${toString port}"; }
+      { name = "HOST"; value = "0.0.0.0"; }
+      { name = "PORT"; value = "${toString port}"; }
+    ];
+  };
+
+  joinerApp = rec {
+    label = "joiner";
+    port  = 3000;
+
+    cpu = if type == "dev"
+    then "100m"
+    else "1000m";
+
+    imagePolicy = if type == "dev"
+    then "Never"
+    else "IfNotPresent";
+
+    env = [
+      { name = "APP_PORT"; value = "${toString port}"; }
+      { name = "HOST"; value = "0.0.0.0"; }
+      { name = "PORT"; value = "${toString port}"; }
+      { name = "HELLO_SERVICE"; value = "${helloApp.label}:${toString helloApp.port}"; }
+      { name = "WORLD_SERVICE"; value = "${worldApp.label}:${toString worldApp.port}"; }
+    ];
+  };
+in rec
+{
+  kubernetes.version = kubeVersion;
+
+  kubernetes.resources.deployments = {
+    "${helloApp.label}" = {
+      metadata.labels.app = helloApp.label;
+
+      spec = {
+        replicas = 1;
+        selector.matchLabels.app = helloApp.label;
+        template = {
+          metadata.labels.app = helloApp.label;
+          spec.containers."${helloApp.label}" = {
+            name = "${helloApp.label}";
+            image = "hello-service:latest";
+            imagePullPolicy = helloApp.imagePolicy;
+            env = helloApp.env;
+            resources.requests.cpu = helloApp.cpu;
+            ports."${toString helloApp.port}" = {};
+          };
+        };
+      };
+
+    };
+
+    "${worldApp.label}" = {
+      metadata.labels.app = worldApp.label;
+
+      spec = {
+        replicas = 1;
+        selector.matchLabels.app = worldApp.label;
+        template = {
+          metadata.labels.app = worldApp.label;
+          spec.containers."${worldApp.label}" = {
+            name = "${worldApp.label}";
+            image = "world-service:latest";
+            imagePullPolicy = worldApp.imagePolicy;
+            env = worldApp.env;
+            resources.requests.cpu = worldApp.cpu;
+            ports."${toString worldApp.port}" = {};
+          };
+        };
+      };
+    };
+
+    "${joinerApp.label}" = {
+      metadata.labels.app = joinerApp.label;
+
+      spec = {
+        replicas = 1;
+        selector.matchLabels.app = joinerApp.label;
+        template = {
+          metadata.labels.app = joinerApp.label;
+          spec.containers."${joinerApp.label}" = {
+            name = "${joinerApp.label}";
+            image = "joiner-service:latest";
+            imagePullPolicy = joinerApp.imagePolicy;
+            env = joinerApp.env;
+            resources.requests.cpu = joinerApp.cpu;
+            ports."${toString joinerApp.port}" = {};
+          };
+        };
+      };
+    };
+  };
+
+  kubernetes.resources.services = {
+    "${helloApp.label}" = {
+      spec.selector.app = "${helloApp.label}";
+      spec.ports."${toString helloApp.port}".targetPort = helloApp.port;
+    };
+
+    "${worldApp.label}" = {
+      spec.selector.app = "${worldApp.label}";
+      spec.ports."${toString worldApp.port}".targetPort = worldApp.port;
+    };
+
+    "${joinerApp.label}" = {
+      spec.selector.app = "${joinerApp.label}";
+      spec.ports."8080".targetPort = joinerApp.port;
+    };
+  };
+
+  kubernetes.resources.ingresses = {
+    "app-ingress" = {
+      spec.rules = [
+        {
+          host = "localhost";
+          http.paths = [
+            {
+              pathType = "Prefix";
+              path = "/";
+              backend = let
+                svc = kubernetes.resources.services."${joinerApp.label}";
+              in {
+                serviceName = joinerApp.label;
+                servicePort = 8080;
+              };
+            }
+          ];
+        }
+      ];
+    };
+  };
+}