3 files changed, 99 insertions, 0 deletions
diff --git a/nix/deploy-to-kind.nix b/nix/deploy-to-kind.nix
new file mode 100644
index 0000000..d40fd06
--- /dev/null
+++ b/nix/deploy-to-kind.nix
@@ -0,0 +1,51 @@
+{ kind
+, helloImage
+, worldImage
+, joinerImage
+, clusterName ? "cluster"
+, config
+, pkgs }:
+
+let
+  kindConfig = pkgs.writeText "kind-config" ''
+    kind: Cluster
+    apiVersion: kind.x-k8s.io/v1alpha4
+    nodes:
+      - role: control-plane
+        kubeadmConfigPatches:
+          - |
+            kind: InitConfiguration
+            nodeRegistration:
+              kubeletExtraArgs:
+                node-labels: "ingress-ready=true"
+        extraPortMappings:
+          - containerPort: 80
+            hostPort: 8080
+            protocol: TCP
+          - containerPort: 443
+            hostPort: 8443
+            protocol: TCP
+  '';
+in
+
+pkgs.writeScriptBin "deploy-to-kind" ''
+      #! ${pkgs.runtimeShell}
+      set -euo pipefail
+
+      ${kind}/bin/kind delete ${clusterName} || true
+      ${kind}/bin/kind create ${clusterName} --config ${kindConfig}
+
+      echo "Loading the ${pkgs.docker}/bin/docker image inside the kind docker container ..."
+
+      kind load image-archive <(gzip --decompress --stdout ${helloImage})
+      kind load image-archive <(gzip --decompress --stdout ${worldImage})
+      kind load image-archive <(gzip --decompress --stdout ${joinerImage})
+
+      echo "Applying the configuration ..."
+      cat ${config} | ${pkgs.jq}/bin/jq "."
+      cat ${config} | ${pkgs.kubectl}/bin/kubectl apply -f -
+
+      echo "Applying nginx ingress ..."
+      kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/kind/deploy.yaml
+''
+
diff --git a/nix/kubenix.nix b/nix/kubenix.nix
new file mode 100644
index 0000000..c09161e
--- /dev/null
+++ b/nix/kubenix.nix
@@ -0,0 +1,8 @@
+{ pkgs }:
+
+import (pkgs.fetchFromGitHub {
+    owner = "xtruder";
+    repo = "kubenix";
+    rev = "473a18371d2c0bb22bf060f750589695fb7d3100";
+    sha256 = "sha256:0j3mzg81s8pd8gsa3lx7bmhawjpb3f5li2irh55kr7b9kyxr2nsy";
+  }) { inherit pkgs; }
diff --git a/nix/test-deployment.nix b/nix/test-deployment.nix
new file mode 100644
index 0000000..d10e5e6
--- /dev/null
+++ b/nix/test-deployment.nix
@@ -0,0 +1,40 @@
+{ kind, pkgs }:
+
+pkgs.writeScriptBin "test-deployment" ''
+      #! ${pkgs.runtimeShell}
+      set -euo pipefail
+
+      SERVICE_URL=http://localhost:8001/api/v1/namespaces/default/services/hello:3000/proxy/
+
+      KUBECONFIG=$(${kind}/bin/kind get kubeconfig-path --name="kind")
+      PROXY_PID=""
+      trap cleanup EXIT
+
+      function cleanup {
+        if ! [ -z $PROXY_PID ]; then
+          kill -9 $PROXY_PID
+        fi
+      }
+
+      CLUSTERS=$(${kind}/bin/kind get clusters)
+      if ! [ "$CLUSTERS" = "kind" ]; then
+        echo "Error: kind cluster not running"
+        exit 1
+      fi
+
+      echo "- Cluster seems to be up and running ✓"
+      ${pkgs.kubectl}/bin/kubectl proxy >/dev/null &
+
+      PROXY_PID=$!
+      sleep 3
+
+      RESPONSE=$(${pkgs.curl}/bin/curl --silent $SERVICE_URL)
+
+      if ! [ "$RESPONSE" == "Hello World" ]; then
+        echo "Error: did not get expected response from service:"
+        echo $RESPONSE
+        exit 1
+      fi
+      echo "- Service returns expected response ✓"
+''
+