mongo 唯一 稀疏 索引
db.test.ensureIndex({“test”:1},{unique = true, sparse = true})
更改npm镜像地址下载包步骤
1. 查看当前计算机的下载地址
npm get registry
2. 修改为淘宝npm镜像
npm config set registry http://registry.npm.taobao.org/
3. 修改为cnpmjs镜像
npm config set registry http://r.cnpmjs.org/
4. 修改为原始地址
npm config set registry http://registry.npmjs.org/
查看indices
curl ‘localhost:9200/_cat/indices?v’
删除indices
curl -XDELETE http://localhost:9200/acc-apply-*
docker container with supervisor
supervisor
sudo nano /etc/supervisor/conf.d/nginx.conf
[program:nginx]
command=/usr/sbin/nginx -g “daemon off;”
autostart=true
autorestart=true
startretries=5
numprocs=1
startsecs=0
process_name=%(program_name)s_%(process_num)02d
stderr_logfile=/var/log/supervisor/%(program_name)s_stderr.log
stderr_logfile_maxbytes=10MB
stdout_logfile=/var/log/supervisor/%(program_name)s_stdout.log
stdout_logfile_maxbytes=10MB
create docker image with below CMD
CMD ["/usr/bin/supervisord", "-n"]
create deployment:
apiVersion: apps/v1
kind: Deployment
metadata:
name: echo-deployment
spec:
replicas: 3
selector:
matchLabels:
app: echo-pod
template:
metadata:
labels:
app: echo-pod
spec:
containers:
- name: echoheaders
image: k8s.gcr.io/echoserver:1.10
imagePullPolicy: IfNotPresent
ports:
- containerPort: 8080
create service:
apiVersion: v1
kind: Service
metadata:
name: echo-service
annotations:
# Note that the backend talks over HTTP.
service.beta.kubernetes.io/aws-load-balancer-backend-protocol: http
# TODO: Fill in with the ARN of your certificate.
service.beta.kubernetes.io/aws-load-balancer-ssl-cert: arn:aws:acm:usxxxxxxx
# Only run SSL on the port named "https" below.
service.beta.kubernetes.io/aws-load-balancer-ssl-ports: "https"
spec:
selector:
app: echo-pod
ports:
- name: http
port: 80
targetPort: 8080
- name: https
port: 443
targetPort: 8080
type: LoadBalancer
更换wordpress 域名
1. 更改wp-config.php里面的域名
2. 修改数据库里面的内容
UPDATE wp_options SET option_value = replace(option_value, ‘old_domain’,'new_domain’) ;
UPDATE wp_posts SET post_content = replace(post_content, ‘old_domain’,'new_domain’) ;
UPDATE wp_posts SET guid = replace(guid, ‘old_domain’,'new_domain’) ;
UPDATE wp_comments SET comment_content = replace(comment_content, ‘old_domain’,'new_domain’) ;
UPDATE wp_comments SET comment_author_url = replace(comment_author_url, ‘old_domain’,'new_domain’) ;
ubuntu nodejs 8
curl -sL https://deb.nodesource.com/setup_8.x | sudo -E bash -
sudo apt-get install -y nodejs
npm install pm2 -g
ubuntu remove package
apt-get autoclean:
如果你的硬盘空间不大的话，可以定期运行这个程序，将已经删除了的软件包的.deb安装文件从硬盘中删除掉。
apt-get clean:
类似上面的命令，但它删除包缓存中的所有包。这是个很好的做法，因为多数情况下这些包没有用了。
apt-get autoremove:
删除为了满足其他软件包的依赖而安装的，但现在不再需要的软件包。
其它：
apt-get remove 软件包名称：
删除已安装的软件包（保留配置文件）。
apt-get –purge remove 软件包名称：
删除已安装包（不保留配置文件)。