add new func

app02/app02-namespace.yaml

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+---
+apiVersion: v1
+kind: Namespace
+metadata:
+  name: app02
+  labels:
+    name: app02
+    type: namespace

app02/app02_redis.yaml

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+---
+apiVersion: v1
+kind: Service
+metadata:
+  name: redis-svc
+  namespace: app02
+  labels:
+    app: redis
+spec:
+  type: NodePort
+  ports:
+    - port: 30080
+      targetPort: 6379
+      nodePort: 30001
+  selector:
+    app: app02-redis
+---
+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: app02-redis
+  namespace: app02
+  labels:
+    app: redis
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: redis
+  template:
+    metadata:
+      labels:
+        app: redis
+        name: redis-pod
+    spec:
+      containers:
+        - name: redis
+          image: redis
+          volumeMounts:
+            - name: redis-conf
+              mountPath: "/usr/local/etc"
+          command:
+            - "redis-server"
+          args:
+            - "/usr/local/etc/config/redis.conf"
+      volumes:
+        - name: redis-conf
+          configMap:
+            name: redis-conf
+            items:
+              - key: redis.conf
+                path: config/redis.conf

app02/busybox.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: test01
+  namespace: app02
+  labels:
+    app: busybox
+spec:
+  containers:
+    - name: test001
+      image: busybox
+      command:
+        - "ping"
+      args:
+        - "baidu.com"

app02/config/redis.conf

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+#daemonize yes
+pidfile /data/redis.pid
+port 6379
+tcp-backlog 30000
+timeout 0
+tcp-keepalive 10
+loglevel notice
+logfile /data/redis.log
+databases 16
+#save 900 1
+#save 300 10
+#save 60 10000
+stop-writes-on-bgsave-error no
+rdbcompression yes
+rdbchecksum yes
+dbfilename dump.rdb
+dir /data
+slave-serve-stale-data yes
+slave-read-only yes
+repl-diskless-sync no
+repl-diskless-sync-delay 5
+repl-disable-tcp-nodelay no
+slave-priority 100
+requirepass ibalife
+maxclients 30000
+appendonly no
+appendfilename "appendonly.aof"
+appendfsync everysec
+no-appendfsync-on-rewrite no
+auto-aof-rewrite-percentage 100
+auto-aof-rewrite-min-size 64mb
+aof-load-truncated yes
+lua-time-limit 5000
+slowlog-log-slower-than 10000
+slowlog-max-len 128
+latency-monitor-threshold 0
+notify-keyspace-events KEA
+hash-max-ziplist-entries 512
+hash-max-ziplist-value 64
+list-max-ziplist-entries 512
+list-max-ziplist-value 64
+set-max-intset-entries 1000
+zset-max-ziplist-entries 128
+zset-max-ziplist-value 64
+hll-sparse-max-bytes 3000
+activerehashing yes
+client-output-buffer-limit normal 0 0 0
+client-output-buffer-limit slave 256mb 64mb 60
+client-output-buffer-limit pubsub 32mb 8mb 60
+hz 10

app02/configmap.yaml

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+apiVersion: v1
+data:
+  redis.conf: |-
+    #daemonize yes
+    protected-mode no
+    pidfile /data/redis.pid
+    bind 0.0.0.0
+    port 6379
+    tcp-backlog 30000
+    timeout 0
+    tcp-keepalive 10
+    loglevel notice
+    logfile /data/redis.log
+    databases 16
+    #save 900 1
+    #save 300 10
+    #save 60 10000
+    stop-writes-on-bgsave-error no
+    rdbcompression yes
+    rdbchecksum yes
+    dbfilename dump.rdb
+    dir /data
+    slave-serve-stale-data yes
+    slave-read-only yes
+    repl-diskless-sync no
+    repl-diskless-sync-delay 5
+    repl-disable-tcp-nodelay no
+    slave-priority 100
+    #requirepass ibalife
+    maxclients 30000
+    appendonly no
+    appendfilename "appendonly.aof"
+    appendfsync everysec
+    no-appendfsync-on-rewrite no
+    auto-aof-rewrite-percentage 100
+    auto-aof-rewrite-min-size 64mb
+    aof-load-truncated yes
+    lua-time-limit 5000
+    slowlog-log-slower-than 10000
+    slowlog-max-len 128
+    latency-monitor-threshold 0
+    notify-keyspace-events KEA
+    hash-max-ziplist-entries 512
+    hash-max-ziplist-value 64
+    list-max-ziplist-entries 512
+    list-max-ziplist-value 64
+    set-max-intset-entries 1000
+    zset-max-ziplist-entries 128
+    zset-max-ziplist-value 64
+    hll-sparse-max-bytes 3000
+    activerehashing yes
+    client-output-buffer-limit normal 0 0 0
+    client-output-buffer-limit slave 256mb 64mb 60
+    client-output-buffer-limit pubsub 32mb 8mb 60
+    hz 10
+kind: ConfigMap
+metadata:
+  name: redis-conf
+  namespace: app02

app02/ub_de.yaml

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+apiVersion: apps/v1
+kind: Deployment
+metadata:
+  name: ubuntu
+  namespace: app02
+  labels:
+    app: test02
+spec:
+  replicas: 1
+  selector:
+    matchLabels:
+      app: test02
+  template:
+    metadata:
+      labels:
+        app: test02
+        name: ub-test
+    spec:
+      containers:
+        - name: test02
+          image: ubuntu
+          command:
+            - "/bin/bash"
+          args: ["-c", "while true; do echo hello; sleep 10;done"]

app02/ubuntu.yaml

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+apiVersion: v1
+kind: Pod
+metadata:
+  name: ubuntu
+  namespace: app02
+  labels:
+    app: ubuntu
+spec:
+  containers:
+    - name: test002
+      image: ubuntu
+      command:
+        - "/bin/bash"
+      args: ["-c", "while true; do echo hello; sleep 10;done"]
+
+      # apt install iproute2 net-tools
+
+      # args:
+      #   - "while true; do echo hello world; sleep 1;done"

app03/Dockerfile

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+#Download base image ubuntu 20.04
+FROM ubuntu:latest
+
+# LABEL about the custom image
+LABEL maintainer="pengtao@kingsome.cn"
+LABEL version="0.1"
+LABEL description="This is custom Docker Image for \
+    the C++ Services."
+
+# Disable Prompt During Packages Installation
+ARG DEBIAN_FRONTEND=noninteractive
+
+RUN apt update \
+&& apt install -y python3 python3-pip \
+&& python3 -m pip install fastapi uvicorn  -i https://pypi.tuna.tsinghua.edu.cn/simple \
+&& mkdir -p /app && chmod -R 755 /app \
+&& rm -rf /var/lib/apt/lists/*
+
+# Define the ENV variable
+ENV  APP_PORT=8000
+
+
+EXPOSE $APP_PORT
+# Copy start.sh script and define default command for the container
+COPY . /app
+WORKDIR /app
+HEALTHCHECK CMD curl --fail http://localhost:$APP_PORT || exit 1
+CMD ["/usr/bin/python3", "app.py"]

app03/app.py

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+# -*- coding: utf-8 -*-
+from fastapi import FastAPI
+
+app = FastAPI()
+
+
+@app.get("/")
+async def root():
+    return {"message": "Hello World"}
+
+
+if __name__ == "__main__":
+    import uvicorn
+
+    uvicorn.run(app="app:app", host="0.0.0.0", port=8000, reload=True, debug=False)

readme.md

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+create namespace
+
+kubectl apply -f namespace.yaml 
+
+
+# 查看 namespace
+kubectl get namespace --show-labels
+kubectl config view | grep namespace:
+# 切换默认namespace
+kubectl config current-context
+kubectl config set-context test --namespace=app01 \
+  --cluster=docker-desktop \
+  --user=docker-desktop
+
+kubectl config set-context prod --namespace=production \
+  --cluster=docker-desktop \
+  --user=docker-desktop
+kubectl config view
+# 切换环境到DEV
+kubectl config use-context test
+# check 当前环境
+kubectl config current-context
+# 查看配额
+kubectl get resourcequotas
+kubectl get resourcequota app01-redis --output=yaml
+
+# create configmap
+kubectl create configmap redis-conf --from-file=redis.conf 
+
+kubectl  get configmap -n miles-app01
+
+NAME                     DATA   AGE
+kube-root-ca.crt         1      3m30s
+miles-app01-redis-conf   1      20s
+
+# 创建和查看 pod
+kubectl apply -f app01_redis.yaml 
+kubectl get pods -n app01
+
+# 注意：configMap 会挂在 /usr/local/etc/redis/redis.conf 上。与 mountPath 和 configMap 下的 path 一同指定
+
+kubectl get pod miles-app01-redis-b48ff8c66-q5cv2 -n miles-app01
+kubectl run busybox --image=busybox --command -- ping baidu.com
+kubectl exec -it busybox -- /bin/bash
+k describe replicaset.apps/app01-redis-64847ffc48
+k get all -ALL
+k describe pods