Add MetalLB setup and TensorFlow Dockerfile for local Kubernetes cluster

- Introduce MetalLB manifests, address pool, and configuration script in `infra/local/tf`.
- Add TensorFlow-based `Dockerfile` in `infra/local/tf` for GPU-enabled environment.
- Update `.gitignore` to exclude `config-kind-in-container`.
- Adjust `docker-compose.yml` to include `tf-bastion` service with necessary mounts and configurations.

Author: greg-ogs

.gitignore

@@ -1,4 +1,6 @@
 .idea
 **/.gcp/**/*.json
 *.terraform*
-*tfstate*
+*tfstate*
+
+*config-kind-in-container*

infra/local/external_workloads/docker-compose.yml

@@ -22,6 +22,21 @@ services:
     networks:
       - kind
 
+  tf-bastion:
+    image: gregogs/cuda:workers-v1.0
+    container_name: tf-bastion-external
+    extra_hosts:
+      - "host.docker.internal:host-gateway"
+    volumes:
+      - ../../../workloads:/workloads:rw
+      - ../mysql-database:/data:ro
+      - ../tf/config-kind-in-container:/root/.kube/config:ro
+    environment:
+      - KUBECONFIG=/root/.kube/config
+    command: [ "bash", "-lc", "sleep infinity" ]
+    networks:
+      - kind
+
 networks:
   kind:
     external: true

infra/local/tf/Dockerfile

@@ -0,0 +1,12 @@
+FROM tensorflow/tensorflow:latest-gpu
+LABEL authors="greg-ogs"
+
+RUN apt-get update && apt-get install -y apt-transport-https ca-certificates curl gnupg
+
+RUN curl -fsSL https://pkgs.k8s.io/core:/stable:/v1.34/deb/Release.key | gpg --dearmor -o /etc/apt/keyrings/kubernetes-apt-keyring.gpg
+
+RUN chmod 644 /etc/apt/keyrings/kubernetes-apt-keyring.gpg && \
+    echo 'deb [signed-by=/etc/apt/keyrings/kubernetes-apt-keyring.gpg] https://pkgs.k8s.io/core:/stable:/v1.34/deb/ /' | tee /etc/apt/sources.list.d/kubernetes.list && \
+    chmod 644 /etc/apt/sources.list.d/kubernetes.list
+
+RUN apt-get update && apt-get install -y kubectl

infra/local/tf/metallb-address-pool.yaml

@@ -0,0 +1,14 @@
+apiVersion: metallb.io/v1beta1
+kind: IPAddressPool
+metadata:
+  name: lb-pool
+  namespace: metallb-system
+spec:
+  addresses:
+    - 172.18.255.200-172.18.255.250
+---
+apiVersion: metallb.io/v1beta1
+kind: L2Advertisement
+metadata:
+  name: lb-adv
+  namespace: metallb-system

infra/local/tf/metallb.sh

@@ -0,0 +1,21 @@
+#!/usr/bin/env sh
+
+kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.15.2/config/manifests/metallb-native.yaml
+
+kubectl -n metallb-system wait deploy --all --for=condition=Available --timeout=120s
+
+docker network inspect kind --format '{{json .IPAM.Config}}'
+
+kubectl apply -f ./infra/local/tf/metallb-adreess-pool.yaml
+
+# For the container kubectl using kind
+
+# Powershell
+#$src = "$env:USERPROFILE\.kube\config"
+#$dst = "$env:USERPROFILE\.kube\config-kind-in-container"
+#Copy-Item $src $dst -Force
+
+#(Get-Content $dst) -replace 'https://127\.0\.0\.1:(\d+)', 'https://desktop-control-plane:$1' | Set-Content $dst
+
+cp ~/.kube/config ~/.kube/config-kind-in-container
+sed -i -E 's#https://127\.0\.0\.1:([0-9]+)#https://desktop-control-plane:\1#g' ~/.kube/config-kind-in-container