From be425bfa7a8c128374e6062a8456ae0215369b63 Mon Sep 17 00:00:00 2001
From: victor <victor@brutalix.org>
Date: Tue, 22 Oct 2024 13:06:53 +0200
Subject: [PATCH] Scripts for install dependecies are added

---
 base_scripts/install_kind.sh    |  7 +++
 base_scripts/install_kubectl.sh |  2 +
 init_cluster..sh                | 88 +++++++++++++++++++++++++++++++++
 3 files changed, 97 insertions(+)
 create mode 100755 base_scripts/install_kind.sh
 create mode 100755 base_scripts/install_kubectl.sh
 create mode 100755 init_cluster..sh

diff --git a/base_scripts/install_kind.sh b/base_scripts/install_kind.sh
new file mode 100755
index 0000000..03d99eb
--- /dev/null
+++ b/base_scripts/install_kind.sh
@@ -0,0 +1,7 @@
+#!/bin/bash
+ # For AMD64 / x86_64
+[ $(uname -m) = x86_64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.24.0/kind-linux-amd64
+# For ARM64
+[ $(uname -m) = aarch64 ] && curl -Lo ./kind https://kind.sigs.k8s.io/dl/v0.24.0/kind-linux-arm64
+chmod +x ./kind
+sudo mv ./kind /usr/local/bin/kind
\ No newline at end of file
diff --git a/base_scripts/install_kubectl.sh b/base_scripts/install_kubectl.sh
new file mode 100755
index 0000000..155a4f7
--- /dev/null
+++ b/base_scripts/install_kubectl.sh
@@ -0,0 +1,2 @@
+#!/bin/bash
+curl -LO "https://dl.k8s.io/release/$(curl -L -s https://dl.k8s.io/release/stable.txt)/bin/linux/amd64/kubectl"
\ No newline at end of file
diff --git a/init_cluster..sh b/init_cluster..sh
new file mode 100755
index 0000000..42498ff
--- /dev/null
+++ b/init_cluster..sh
@@ -0,0 +1,88 @@
+#!/bin/bash
+SCRIPTS_DIR="base_scripts"
+set -o errexit
+#Install Kind
+${SCRIPTS_DIR}/install_kind.sh
+#Install kubectl
+${SCRIPTS_DIR}/install_kubectl.sh
+
+# 1. Create registry container unless it already exists
+reg_name='kind-registry'
+reg_port='5001'
+if [ "$(docker inspect -f '{{.State.Running}}' "${reg_name}" 2>/dev/null || true)" != 'true' ]; then
+  docker run \
+    -d --restart=always -p "127.0.0.1:${reg_port}:5000" --network bridge --name "${reg_name}" \
+    registry:2
+fi
+
+# 2. Create kind cluster with containerd registry config dir enabled
+# TODO: kind will eventually enable this by default and this patch will
+# be unnecessary.
+#
+# See:
+# https://github.com/kubernetes-sigs/kind/issues/2875
+# https://github.com/containerd/containerd/blob/main/docs/cri/config.md#registry-configuration
+# See: https://github.com/containerd/containerd/blob/main/docs/hosts.md
+kind create cluster --config manifests/kind-cluster-config.yaml
+# cat <<EOF | kind create cluster --config=-
+# kind: Cluster
+# apiVersion: kind.x-k8s.io/v1alpha4
+# containerdConfigPatches:
+# - |-
+#   [plugins."io.containerd.grpc.v1.cri".registry]
+#     config_path = "/etc/containerd/certs.d"
+# EOF
+
+# 3. Add the registry config to the nodes
+#
+# This is necessary because localhost resolves to loopback addresses that are
+# network-namespace local.
+# In other words: localhost in the container is not localhost on the host.
+#
+# We want a consistent name that works from both ends, so we tell containerd to
+# alias localhost:${reg_port} to the registry container when pulling images
+REGISTRY_DIR="/etc/containerd/certs.d/localhost:${reg_port}"
+for node in $(kind get nodes); do
+  docker exec "${node}" mkdir -p "${REGISTRY_DIR}"
+  cat <<EOF | docker exec -i "${node}" cp /dev/stdin "${REGISTRY_DIR}/hosts.toml"
+[host."http://${reg_name}:5000"]
+EOF
+done
+
+# 4. Connect the registry to the cluster network if not already connected
+# This allows kind to bootstrap the network but ensures they're on the same network
+if [ "$(docker inspect -f='{{json .NetworkSettings.Networks.kind}}' "${reg_name}")" = 'null' ]; then
+  docker network connect "kind" "${reg_name}"
+fi
+
+# 5. Document the local registry
+# https://github.com/kubernetes/enhancements/tree/master/keps/sig-cluster-lifecycle/generic/1755-communicating-a-local-registry
+cat <<EOF | kubectl apply -f -
+apiVersion: v1
+kind: ConfigMap
+metadata:
+  name: local-registry-hosting
+  namespace: kube-public
+data:
+  localRegistryHosting.v1: |
+    host: "localhost:${reg_port}"
+    help: "https://kind.sigs.k8s.io/docs/user/local-registry/"
+EOF
+#6. Install Kind LoadBalancer
+kubectl label node kind-control-plane node.kubernetes.io/exclude-from-external-load-balancers-
+git clone https://github.com/kubernetes-sigs/cloud-provider-kind.git
+docker compose -f manifests/kind-cloud-provider up -d
+#7. Install Ingress
+kubectl apply -f manifests/ingress.yaml 
+kubectl wait --namespace ingress-nginx   --for=condition=ready pod   --selector=app.kubernetes.io/component=controller   --timeout=90s
+#8. Expose LoadBalancer
+sudo apt install socat
+wget https://raw.githubusercontent.com/aleskxyz/kind-exposer/main/kind-exposer -O kind-exposer && \
+chmod +x kind-exposer && \
+sudo mv kind-exposer /usr/local/bin/ && \
+wget https://raw.githubusercontent.com/aleskxyz/kind-exposer/main/kind-exposer@.service -O kind-exposer@.service && \
+sudo mv kind-exposer@.service /etc/systemd/system/ && \
+sudo systemctl daemon-reload
+LB_IP=$(kubectl get services -n ingress-nginx | grep ingress-nginx-controller | grep -v ingress-nginx-controller-admission |  awk '{ print $4}')
+sudo systemctl enable --now kind-exposer@${LB_IP}:80:8080:tcp
+sudo systemctl enable --now kind-exposer@${LB_IP}:443:8443:tcp