Add startup.sh & revise markdowns

Author: anyflow

k8s/command.md

@@ -0,0 +1,45 @@
+# Access pod
+
+- 특정 pod bash에 접근
+
+  ```bash
+  kubectl exec --stdin --tty <pod name> -- /bin/bash
+  ```
+
+- network util pod 생성 및 shell 로그인
+
+  ```bash
+  kubectl run <netutil name> --rm -i --tty --image praqma/network-multitool -- bash
+  ```
+
+# Dashboard
+
+- *관련 reference* : `https://kubernetes.io/ko/docs/tasks/access-application-cluster/web-ui-dashboard/`
+
+- dashboard UI 배포
+
+  ```bash
+  kubectl apply -f https://raw.githubusercontent.com/kubernetes/dashboard/v2.4.0/aio/deploy/recommended.yaml
+  ```
+
+- dashboard 접속 활성화
+
+  ```bash
+  kubectl proxy
+  ```
+
+- dashboard URL (접근)
+
+  ```
+  http://localhost:8001/api/v1/namespaces/kubernetes-dashboard/services/https:kubernetes-dashboard:/proxy/
+  ```
+
+- dashboard UI에 접근에 사용할 token 얻기
+
+  ```bash
+  kubectl -n kube-system describe secret $(kubectl -n kube-system get secret | awk '/^deployment-controller-token-/{print $1}') | awk '$1=="token:"{print $2}'
+  ```
+
+# 참고 : TODO
+
+- dashboard에 service, ingress, node 등의  항목이 나타나지 않는데, 이를 해결

k8s/mongo.md

@@ -55,8 +55,3 @@
    > rs.isMaster()
    > rs.stepDown()
    ```
-
-## 참고
-
-- 특정 pod bash에 접근 : `kubectl exec --stdin --tty <pod name> -- /bin/bash`
-- network util pod 생성 및 shell 로그인 `kubectl run my-shell --rm -i --tty --image praqma/network-multitool -- bash`

k8s/readme.md

@@ -13,6 +13,7 @@
   - [ingress 테스트](#ingress-테스트)
   - [load balancer 테스트](#load-balancer-테스트)
 - [클러스터 삭제하기](#클러스터-삭제하기)
+
 # Description
 
 - **kind**가 무엇인지, 어떻게 사용하는지

k8s/startup.sh

@@ -0,0 +1,34 @@
+#!/bin/sh
+
+Green='\033[0;32m'        # Green
+NC='\033[0m'              # No Color
+
+echo "${Green}[startup] Creating k8s cluster...${NC}"
+kind create cluster --config ./kind-config.yaml
+
+echo
+echo "${Green}[startup] Deploying NGINX ingress controller...${NC}"
+kubectl apply -f https://raw.githubusercontent.com/kubernetes/ingress-nginx/main/deploy/static/provider/kind/deploy.yaml
+
+echo
+echo "${Green}[startup] Waiting for NGINX setting completion...${NC}"
+kubectl wait --namespace ingress-nginx \
+  --for=condition=ready pod \
+  --selector=app.kubernetes.io/component=controller \
+  --timeout=90s
+
+echo
+echo "${Green}[startup] Creating metallb load balancer namespace...${NC}"
+kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.12.1/manifests/namespace.yaml
+
+echo
+echo "${Green}[startup] Deploying metallb...${NC}"
+kubectl apply -f https://raw.githubusercontent.com/metallb/metallb/v0.12.1/manifests/metallb.yaml
+
+echo
+echo "${Green}[startup] Waiting for metallb setting completion...${NC}"
+#kubectl get pods -n metallb-system --watch
+kubectl wait --namespace metallb-system \
+  --for=condition=ready pod \
+  --selector=app=metallb,component=speaker \
+  --timeout=90s