Add service account.

nix/kubernetes/keys/package/k8s-keys/package.nix

@@ -8,5 +8,6 @@ symlinkJoin {
   paths = [
     k8s.kubernetes
     k8s.ca
+    k8s.service_account
   ];
 }

nix/kubernetes/keys/package/k8s-kubernetes/package.nix

@@ -16,7 +16,7 @@
   ...
 }:
 stdenv.mkDerivation (finalAttrs: {
-  name = "k8s-keys";
+  name = "k8s-kubernetes";
   nativeBuildInputs = [ cfssl ];
   buildInputs = [ ];
 

nix/kubernetes/keys/package/k8s-service-account/files/ca-config.json

@@ -0,0 +1,13 @@
+{
+  "signing": {
+    "default": {
+      "expiry": "8760h"
+    },
+    "profiles": {
+      "kubernetes": {
+        "usages": ["signing", "key encipherment", "server auth", "client auth"],
+        "expiry": "8760h"
+      }
+    }
+  }
+}

nix/kubernetes/keys/package/k8s-service-account/files/service-account-csr.json

@@ -0,0 +1,16 @@
+{
+  "CN": "service-accounts",
+  "key": {
+    "algo": "rsa",
+    "size": 2048
+  },
+  "names": [
+    {
+      "C": "US",
+      "L": "Portland",
+      "O": "Kubernetes",
+      "OU": "Kubernetes The Hard Way",
+      "ST": "Oregon"
+    }
+  ]
+}

nix/kubernetes/keys/package/k8s-service-account/package.nix

@@ -0,0 +1,35 @@
+# unpackPhase
+# patchPhase
+# configurePhase
+# buildPhase
+# checkPhase
+# installPhase
+# fixupPhase
+# installCheckPhase
+# distPhase
+{
+  stdenv,
+  sqlite,
+  cfssl,
+  k8s,
+  all_hostnames,
+  ...
+}:
+stdenv.mkDerivation (finalAttrs: {
+  name = "k8s-service-account";
+  nativeBuildInputs = [ cfssl ];
+  buildInputs = [ ];
+
+  unpackPhase = "true";
+
+  installPhase = ''
+    mkdir -p "$out"
+    cd "$out"
+    cfssl gencert \
+       -ca=${k8s.ca}/ca.pem \
+       -ca-key=${k8s.ca}/ca-key.pem \
+       -config=${./files/ca-config.json} \
+       -profile=kubernetes \
+       ${./files/service-account-csr.json} | cfssljson -bare service-account
+  '';
+})