Switch to kubernetes ipam mode.

nix/kubernetes/README.org

@@ -17,17 +17,29 @@
   nix shell 'nixpkgs#kubernetes-helm'
 
   helm repo add cilium https://helm.cilium.io/
-  helm template --dry-run=server cilium cilium/cilium --version 1.18.4 --namespace kube-system \
+  helm template --dry-run=client cilium cilium/cilium --version 1.18.5 --namespace kube-system \
        --set kubeProxyReplacement=true \
+       --set ipam.mode=kubernetes \
        --set k8sServiceHost="2620:11f:7001:7:ffff:ffff:ad7:1dd" \
        --set k8sServicePort=6443 \
-       --set ipv6.enabled=true
+       --set ipv6.enabled=true \
+       --set ipv4.enabled=false \
+       --set enableIPv4BIGTCP=false \
+       --set enableIPv6BIGTCP=true \
+       --set routingMode=native \
+       --set ipv4NativeRoutingCIDR=10.0.0.0/8 \
+       --set ipv6NativeRoutingCIDR=fd00::/100
 
   kubectl -n kube-system exec ds/cilium -- cilium-dbg status --verbose
   kubectl -n kube-system exec ds/cilium -- cilium-dbg status | grep KubeProxyReplacement
 
   #      --set hostFirewall.enabled=true
   # routingMode=native
+
+       # --set ipv4-native-routing-cidr=10.0.0.0/8 \
+       # --set ipv6-native-routing-cidr=fd00::/100
+  # --set 'ipam.operator.clusterPoolIPv4PodCIDRList=["10.0.0.0/8"]' \
+  # --set 'ipam.operator.clusterPoolIPv6PodCIDRList=["fd00::/100"]' \
 #+end_src
 ** Install flux
 #+begin_src bash

nix/kubernetes/keys/flake.nix

@@ -28,5 +28,27 @@
           k8s = (final.callPackage ./scope.nix { inherit (final.lib) makeScope; });
         }
       );
+
+    }
+    // {
+      devShells = forAllSystems (
+        system:
+        let
+          pkgs = nixpkgs.legacyPackages.${system};
+          appliedOverlay = self.overlays.default pkgs pkgs;
+        in
+        {
+          default = pkgs.mkShell {
+            nativeBuildInputs = with pkgs; [
+              pkg-config
+            ];
+            buildInputs = with pkgs; [
+              kubernetes-helm # To generate cilium manifests
+              fluxcd # To generate flux manifests
+              cilium-cli # To check cilium status
+            ];
+          };
+        }
+      );
     };
 }