Add homework 10.Kubernetes_installation

Denis_Fedosevich/10.Kubernetes_installation/.github/workflows/pod_status.yaml

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+name: Check pod status
+
+on:
+  workflow_dispatch:
+
+jobs:
+  Check_pod_status:
+    runs-on: ubuntu-latest
+
+    steps:
+      - name: Checking the repository
+        uses: actions/checkout@v4
+
+      - name: Setup SSH key
+        run: |
+          mkdir -p ~/.ssh
+          echo "${{ secrets.SSH_PRIVATE_KEY }}" > ~/.ssh/id_rsa
+          chmod 600 ~/.ssh/id_rsa
+          echo -e "Host *\n  StrictHostKeyChecking no" > ~/.ssh/config
+
+      - name: Connect SSH and check pod status
+        id: pod_status
+        run: |
+          FAILED_PODS=$(ssh ${{ secrets.K8S_USER }}@${{ secrets.K8S_HOST }} -o ProxyCommand="ssh -W %h:%p -q ${{ secrets.PROXY_USER }}@${{ secrets.PROXY_HOST }} -p ${{ secrets.PROXY_PORT }}" \
+          "kubectl get pods -A --field-selector status.phase!=Running,status.phase!=Succeeded")
+
+          if [ -n "$FAILED_PODS" ]; then
+            SAFE_FAILED_PODS=$(echo "$FAILED_PODS" | awk '{printf "%s\\n", $0}')
+            echo "failed_pods=true" >> $GITHUB_OUTPUT
+            echo "failed_pods_content"= $SAFE_FAILED_PODS >> $GITHUB_OUTPUT
+          else
+            echo "failed_pods=false" >> $GITHUB_OUTPUT
+          fi
+
+      - name: Debug pod status
+        run: |
+          if [ -n "${{ steps.pod_status.outputs.failed_pods_content }}" ]; then
+            echo "FAILED_PODS: ${{ steps.pod_status.outputs.failed_pods_content }}"
+          else
+            echo "No failed pods found"
+          fi
+
+      - name: Slack Notification
+        if: steps.pod_status.outputs.failed_pods == 'true'
+        uses: rtCamp/action-slack-notify@v2
+        env:
+          SLACK_WEBHOOK: ${{ secrets.SLACK_WEBHOOK }}
+          SLACK_CUSTOM_PAYLOAD: |
+            {
+              "username": "Cluster monitoring",
+              "icon_emoji": ":satellite_antenna:",
+              "attachments": [
+                {
+                  "color": "danger",
+                  "title": "Problematic Pods Detected :dart:",
+                  "text": "```${{ steps.pod_status.outputs.failed_pods_content }}```",
+                  "mrkdwn_in": ["text"]
+                }
+              ]
+            }

Denis_Fedosevich/10.Kubernetes_installation/README.md

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+# 10. Kubernetes installation (WS)
+
+## Homework Assignment 1. K8s Installation
+
+### Install kubectl for local run
+
+```shell
+denis@server:~$ curl -LO https://dl.k8s.io/release/`curl -LS https://dl.k8s.io/release/stable.txt`/bin/linux/amd64/
+denis@server:~$ chmod +x ./kubectl
+denis@server:~$ sudo mv ./kubectl /usr/local/bin/kubectl
+denis@server:~$ kubectl version --client
+Client Version: v1.32.1
+Kustomize Version: v5.5.0
+denis@server:~$
+```
+
+### Install k9s
+
+```shell
+denis@server:~$ wget  https://github.com/derailed/k9s/releases/download/v0.32.7/k9s_linux_amd64.deb
+denis@server:~$ sudo dpkg -i k9s_linux_amd64.deb
+denis@server:~$ k9s version
+ ____  __.________
+|    |/ _/   __   \______
+|      < \____    /  ___/
+|    |  \   /    /\___ \
+|____|__ \ /____//____  >
+        \/            \/
+
+Version:    v0.32.7
+Commit:     6b5d24f5741a1789fb97ba3e11f0ee868d93459d
+Date:       2024-11-16T20:22:28Z
+```
+Cluster selection
+![K8s cluster selection](./images/image_1.png)
+
+List of all pods in all namespaces
+![Image list of all pods](./images/image_2.png)
+
+### Pod deployment
+
+[Link of pod YAML manifest](pod.yaml)
+
+```shell
+denis@server:~/10.Kubernetes_installation_WS$ kubectl apply -f pod.yaml
+pod/ubuntu-default created
+denis@server:~/10.Kubernetes_installation_WS$ k9s
+```
+
+Checking the running new pod
+![Running pod status](./images/image_3.png)
+
+### Monitoring of cluster:
+
+List of links:
+- [Workflow](.github/workflows/pod_status.yaml)
+- [Action](https://github.com/fedos1993/10.Kubernetes_installation_WS/actions/workflows/pod_status.yaml)
+
+
+Result of slack notification
+
+![Result of slack notification](./images/image_4.png)

Denis_Fedosevich/10.Kubernetes_installation/pod.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: ubuntu-default
+  labels:
+    app: ubuntu
+spec:
+  containers:
+  - image: ghcr.io/pluhin/busy-box:latest
+    command:
+      - "sleep"
+      - "604800"
+    imagePullPolicy: IfNotPresent
+    name: ubuntu-default