方法一
在制作容器镜像时候，将时区问题解决
RUN rm -f /etc/localtime && ln -sv /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && echo "Asia/Shanghai" > /etc/timezone方法二
采用hostpath方式将主机时区挂载至容器内部
volumeMounts:
- mountPath: /etc/localtime
name: time_name
volumes:
- hostPath:
path: /usr/share/zoneinfo/Asia/Shanghai
type: ''
name: time_name
location ^~ /location {
root /usr/share/nginx/html;
index index.html index.htm;
try_files $uri $uri/ /index.html;
}完整的解释是：try_files 去尝试到网站目录读取用户访问的文件，如果第一个变量存在，就直接返回；不存在继续读取第二个变量，如果存在，直接返回；不存在直接跳转到第三个参数上。变量就是每个uri资源。并不改变请求路径。 $uri表示文件资源， $uri/表示目录资源。
location ^~ /location {
root /usr/share/nginx/html;
index index.html index.htm;
rewrite http://www.baidu.com break;
}请求location，跳转至百度，改变请求路径。break表示不再向下匹配。
kubectl autoscale deployment 名称 --cpu-percent=80 --min=3 --max=6 -n 命名空间apiVersion: autoscaling/v1
kind: HorizontalPodAutoscaler
metadata:
name: gsvauth-v1
namespace: istio-system
spec:
maxReplicas: 6
minReplicas: 1
scaleTargetRef:
apiVersion: apps/v1
kind: Deployment
name: gsvauth-v1
targetCPUUtilizationPercentage: 80
生成系统变量的模板
apiVersion: v1
kind: Secret
metadata:
name: gitlogin
namespace: template
type: Opaque
data:
username: xxxxx ## 直接base64直接转码后挂进来 使用"echo 字符串 | base64加密，使用echo 字符串 | base64 -d解密"
password: xxxxx ## 此处密码被挂载到git服务中，其中含有@字符，必须将“@”转义成“%40”，然后进行base64转换成密码
---
apiVersion: batch/v1
kind: Job
metadata:
name: git
namespace: template
spec:
template:
metadata:
name: git
labels:
app: git
version: v1
spec:
containers:
- name: git
image: bitnami/git:latest
workingDir: /tmp
command:
- "sh"
- "-c"
- git clone -b dev https://${username}:${password}@xxx.git && echo "job done!"
#- env
env:
- name: username
valueFrom:
secretKeyRef:
name: gitlogin
key: username
- name: password
valueFrom:
secretKeyRef:
name: gitlogin
key: password
restartPolicy: OnFailure
文件夹不存在则创建
if [ ! -d "/data/" ];then mkdir /data else echo "文件夹已经存在" fi
文件存在则删除
if [ ! -f "/data/filename" ];then echo "文件不存在" else rm -f /data/filename fi
判断文件夹是否存在
if [ -d "/data/" ];then echo "文件夹存在" else echo "文件夹不存在" fi
判断文件是否存在
if [ -f "/data/filename" ];then echo "文件存在" else echo "文件不存在" fi
文件比较符
-e 判断对象是否存在 -d 判断对象是否存在，并且为目录 -f 判断对象是否存在，并且为常规文件 -L 判断对象是否存在，并且为符号链接 -h 判断对象是否存在，并且为软链接 -s 判断对象是否存在，并且长度不为0 -r 判断对象是否存在，并且可读 -w 判断对象是否存在，并且可写 -x 判断对象是否存在，并且可执行 -O 判断对象是否存在，并且属于当前用户 -G 判断对象是否存在，并且属于当前用户组 -nt 判断file1是否比file2新 [ "/data/file1" -nt "/data/file2" ] -ot 判断file1是否比file2旧 [ "/data/file1" -ot "/data/file2" ]
git reset --hard && git clean -fd用途：
当镜像实际发生改变，但是tag不变的情况下进行操作
updateimage.sh
#!/bin/env bash
kubectl set image -n demo deployments.apps/demo-deployment demo=demo.host.com/demo/demo:latest
if [ $? -ne 0 ]; then
echo "set image faild"
exit 1
else
echo "set image successed"
kubectl rollout restart -n demo deployments.apps/demo-deployment
fi
deployment.yaml
apiVersion: apps/v1
kind: Deployment
metadata:
labels:
app: template-nginx
release: template-nginx
name: template-deployment
namespace: template
spec:
replicas: 1
selector:
matchLabels:
app: template-nginx
strategy:
rollingUpdate:
maxSurge: 25%
maxUnavailable: 25%
type: RollingUpdate
template:
metadata:
name: template-nginx
namespace: template
labels:
app: template-nginx
release: template-nginx
releaseRevision: "v1"
spec:
containers:
- name: template-nginx
image: nginx:1.20-alpine
imagePullPolicy: IfNotPresent
ports:
- name: template
containerPort: 80
volumeMounts:
- name: template
mountPath: /etc/nginx/conf.d/
volumes:
- name: template
configMap:
name: template
service.yaml
apiVersion: v1
kind: Service
metadata:
labels:
app: template-nginx
release: template-nginx
name: template-nginx
namespace: template
spec:
ports:
- port: 80
protocol: TCP
targetPort: 80
selector:
app: template-nginx
type: ClusterIP
ingress.yaml
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
name: template-nginx
namespace: template
labels:
ingress: template-nginx
release: template-nginx
spec:
rules:
- host: temp.host.com
http:
paths:
- path: /admin/
backend:
service:
name: template-nginx
port:
number: 80
pathType: Prefix
- path: /
backend:
service:
name: template-nginx
port:
number: 80
pathType: ImplementationSpecific
namespace.yaml
apiVersion: v1
kind: Namespace
metadata:
labels:
kubernetes.io/metadata.name: template
name: template
spec:
finalizers:
- kubernetes
configmap.yaml
apiVersion: v1
data:
default.conf: |+
server {
listen 80;
listen [::]:80;
server_name temp.host.com;
location / {
root /usr/share/nginx/html;
index index.html index.htm;
}
error_page 500 502 503 504 /50x.html;
location = /50x.html {
root /usr/share/nginx/html;
}
}
kind: ConfigMap
metadata:
name: template
namespace: template
echo "hello world" > /tmp/helloworld.txt
if [ $? -ne 0 ]; then
echo " failed"
exit 1
else
echo "successed"
fi
作用：
判断上一句执行的结果，如果为0，返回“successed”，如果不为0，返回“failed”
#!/bin/env bash
CODEPATH=/opt/code/
JARPATH=/opt/jar
set -xe
find ${CODEPATH} -type f -name "*.jar" | tee jar.cache.txt
for line in $(cat jar.cache.txt)
do
cp ${line} ${JARPATH}
done
rm jar.cache.txt
作用：
循环查找/opt/code下的jar包，推送到/opt/jar目录下
for line一句，逐行读取jar.cache.txt，并执行