Month: July 2021

ArgoCD安装

kubectl create namespace argocd
kubectl apply -n argocd -f https://raw.githubusercontent.com/argoproj/argo-cd/stable/manifests/install.yaml

kubectl port-forward --address 0.0.0.0 svc/argocd-server -n argocd 8000:443

用户名 admin

密码是 Pod 名

kubectl get pods -n argocd -l app.kubernetes.io/name=argocd-server -o name | cut -d'/' -f 2
argocd-server-86f7f94488-pv2zk

不过我这里不好用，查看了一下 secrets 发现密码是 HclJUPjSiSwmWZpC

Microk8s pull image

microk8s ctr image pull quay.io/argoproj/argocd:v2.0.4

Microk8s helm rancher

helm repo add rancher-latest https://releases.rancher.com/server-charts/latest
kubectl create namespace cattle-system
kubectl apply --validate=false -f https://github.com/jetstack/cert-manager/releases/download/v1.0.4/cert-manager.crds.yaml
kubectl create namespace cert-manager
helm repo add jetstack https://charts.jetstack.io
helm repo update
helm install \
  cert-manager jetstack/cert-manager \
  --namespace cert-manager \
  --version v1.0.4
helm install rancher rancher-latest/rancher \
  --namespace cattle-system \
  --set hostname=rancher.lizhe.com

Microk8s helm traefik

kubectl port-forward traefik-7d5c7fbf7f-ng7zz 9000:9000

Microk8s kubeconfig

microk8s config view
microk8s config view > $HOME/.kube/config

顺便尝试 helm

Sonarqube pipeline

pipeline {
    agent none
    
    environment {
        SONAR_LOGIN='xxxxxxxxxxxxxxxxxxxxxx'
    }


    stages {
        stage ('Checkout') {
            agent any
            steps {
                sh "rm -rf /var/jenkins_home/workspace/${env.JOB_NAME}/*"
                git branch: 'develop', credentialsId: 'xxxxxxxxxxxxxxxxxxxx', url: 'https://github.com/xxxxxx/xxxxxxxx.git'
            }
        }
        stage('Scan') {
            agent {
                docker {
                    image 'docker:20.10.6'
                    args "-v /var/run/docker.sock:/var/run/docker.sock -v /var/jenkins_home/workspace/${env.JOB_NAME}/:/usr/src"
                }
            }
            steps {
                dir("/var/jenkins_home/workspace/${env.JOB_NAME}/") {
                    sh """
                    ls /usr/src
                    rm -rf /usr/src/*
                    ls /usr/src
                    ls /var/jenkins_home/workspace/${env.JOB_NAME}
                    cp -r /var/jenkins_home/workspace/${env.JOB_NAME}/* /usr/src/
                    ls /usr/src
                    docker run --rm -e SONAR_HOST_URL="http://10.10.10.198:9000/" -e SONAR_LOGIN='${env.SONAR_LOGIN}' -v /var/jenkins_home/workspace/${env.JOB_NAME}/:/usr/src sonarsource/sonar-scanner-cli \
                    -Dsonar.projectKey=app-sonarqube -Dsonar.sources=./
                    """
                }
            }
        }
    }
}

Microk8s prometheus operator

microk8s enable prometheus

如果安装过程中报错，尝试删除相关文件夹

sudo rm -rf /var/snap/microk8s/2262/kube-prometheus

使用 kubectl port-forward 登入

microk8s kubectl port-forward grafana-6b8df57c5b-z626n 3000:3000 -n monitoring

输入系统刚才提示的密码

admin/admin

创建一个 nodeport

kind: Service
apiVersion: v1
metadata:
  name: grafananp
  namespace: monitoring
  labels:
    app: grafana
spec:
  ports:
    - name: http
      protocol: TCP
      port: 3000
      targetPort: 3000
      nodePort: 30036
  selector:
    app: grafana
  type: NodePort
  sessionAffinity: None
  externalTrafficPolicy: Cluster

Microk8s

1. Install MicroK8s on Linux

sudo snap install microk8s --classic

2. Add your user to the microk8s admin group

sudo usermod -a -G microk8s $USER
sudo chown -f -R $USER ~/.kube
su - $USER

3. Check the status while Kubernetes starts

microk8s status --wait-ready

4. Turn on the services you want

microk8s enable dashboard dns ingress

5. Start using Kubernetes

microk8s kubectl get all --all-namespaces

alias mkctl="microk8s kubectl"
mkctl get all -A

6. Access the Kubernetes dashboard

microk8s dashboard-proxy

7. Start and stop Kubernetes to save battery

microk8s start
microk8s stop

8. Multi-node, highly available Kubernetes with MicroK8s

在 ubuntu1 上

microk8s add-node

在 ubuntu2 上

microk8s join 192.168.194.196:25000/24bfc55c51720b62f15caefb95a8f211/c11a38c71679

此时可以看到 ubuntu1 作为 master 节点，ubuntu2 作为 slave 节点