Nginx K8s + Docker 部署 ,虚拟机部署教程。
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nginx K8s + Docker 部署 ,虚拟机部署教程!
Linux 虚拟机 部署
1、下载nginx:
http://nginx.org/download/
2、选择一个版本进行下载:
wget http://nginx.org/download/nginx-1.14.0.tar.gz
3、解压:
tar -xvf nginx-1.14.0.tar.gz
4、安装依赖包:
yum -y install gcc pcre-devel zlib-devel openssl openssl-devel
5、编译、安装
cd $NGINX_HOME
./configure --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_realip_module
make
make install
6、修改nginx.conf
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
upstream admin-server {
server 10.68.60.100:18060 max_fails=2 fail_timeout=30;
server 10.68.60.101:18060 max_fails=2 fail_timeout=30;
server 10.68.60.110:18060 max_fails=2 fail_timeout=30;
}
upstream api-server {
server 10.68.60.100:18082 max_fails=2 fail_timeout=30;
server 10.68.60.101:18082 max_fails=2 fail_timeout=30;
server 10.68.60.110:18082 max_fails=2 fail_timeout=30;
}
server {
listen 8080;
server_name api-server;
keepalive_timeout 30;
location / {
proxy_pass http://api-server;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host:$server_port;
}
}
server {
listen 8081;
server_name admin-server;
keepalive_timeout 30;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host:$server_port;
location / {
proxy_pass http://admin-server;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host:$server_port;
}
}
}
7、启动nginx:
$NGINX_HOMT/sbin/nginx
8、重启nginx:
$NGINX_HOMT/sbin/nginx -s stop
$NGINX_HOMT/sbin/nginx
9、热更新:
$NGINX_HOMT/sbin/nginx -s reload
Docker + k8s 部署
前提:假定你已经安装并集成好docker和k8s基础环境!
1、创建docker构建目录:
mkdir -p /opt/docker/build/nginx
2、下载nginx:
cd /opt/docker/build/nginx
wget http://nginx.org/download/nginx-1.14.0.tar.gz
3、编写Dockerfile,内容如下:
FROM ansible/centos7-ansible
ADD nginx-1.14.0.tar.gz /
RUN mkdir -p /opt/soft &&\
mkdir -p /opt/tarball &&\
mkdir -p /opt/src &&\
touch /opt/daemon.log &&\
mv /nginx-1.14.0 /opt/src &&\
yum -y install gcc pcre-devel zlib-devel openssl openssl-devel &&\
cd /opt/src/nginx-1.14.0 &&\
./configure --prefix=/usr/local/nginx --with-http_stub_status_module --with-http_realip_module &&\
make &&\
make install &&\
cp -R /usr/share/zoneinfo/Asia/Shanghai /etc/localtime
ENTRYPOINT [ "sh", "-c", "/usr/local/nginx/sbin/nginx && tail -f /opt/daemon.log" ]
4、构建docker 镜像:
cd /opt/docker/build/nginx
docker build --network host -t 10.68.60.103:5000/nginx:1.14.0 -f Dockerfile .
5、推送镜像到私服:
docker push 10.68.60.103:5000/nginx:1.14.0
6、编写k8s nginx-deployment.yaml文件,内容如下:
apiVersion: apps/v1
kind: Deployment
metadata:
name: nginx-deployment
namespace: my-namespace
labels:
app: nginx-deployment
spec:
replicas: 1
selector:
matchLabels:
app: nginx-pod
template:
metadata:
labels:
app: nginx-pod
spec:
nodeSelector:
"true" :
restartPolicy: Always
containers:
name: nginx-container
image: "10.68.60.103:5000/nginx:1.14.0"
ports:
# - containerPort: 80
volumeMounts:
mountPath: "/usr/local/nginx/conf/nginx.conf"
name: "nginx-volume-conf"
mountPath: "/usr/local/nginx/logs"
name: "nginx-volume-log"
imagePullSecrets:
name: regcred
volumes:
name: "nginx-volume-conf"
hostPath:
path: "/opt/apps-mgr/nginx/conf/nginx.conf"
type: File
name: "nginx-volume-log"
hostPath:
path: "/opt/apps-mgr/nginx/logs"
type: DirectoryOrCreate
注意:/opt/apps-mgr/nginx/conf/nginx.conf文件需要提前配置好,笔者这里配置文件如下:
#user nobody;
worker_processes 1;
#error_log logs/error.log;
#error_log logs/error.log notice;
#error_log logs/error.log info;
#pid logs/nginx.pid;
events {
worker_connections 1024;
}
http {
include mime.types;
default_type application/octet-stream;
#log_format main '$remote_addr - $remote_user [$time_local] "$request" '
# '$status $body_bytes_sent "$http_referer" '
# '"$http_user_agent" "$http_x_forwarded_for"';
#access_log logs/access.log main;
sendfile on;
#tcp_nopush on;
#keepalive_timeout 0;
keepalive_timeout 65;
#gzip on;
upstream admin-server {
server 10.68.60.100:18060 max_fails=2 fail_timeout=30;
server 10.68.60.101:18060 max_fails=2 fail_timeout=30;
server 10.68.60.110:18060 max_fails=2 fail_timeout=30;
}
upstream api-server {
server 10.68.60.100:18082 max_fails=2 fail_timeout=30;
server 10.68.60.101:18082 max_fails=2 fail_timeout=30;
server 10.68.60.110:18082 max_fails=2 fail_timeout=30;
}
server {
listen 8080;
server_name api-server;
keepalive_timeout 30;
location / {
proxy_pass http://api-server;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host:$server_port;
}
}
server {
listen 8081;
server_name admin-server;
keepalive_timeout 30;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host:$server_port;
location / {
proxy_pass http://admin-server;
proxy_set_header X-Forwarded-Host $host;
proxy_set_header X-Forwarded-Server $host;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_set_header Host $host:$server_port;
}
}
}
初步可以先用默认的配置,等启动成功后再修改,修改后需要进入Pod重启Nginx,进入命令如下:
kubectl get pods -A | grep nginx
kubectl exec -it -n my-namespace nginx-deployment-5dcf489c44-f9c4r
/usr/local/nginx/sbin/nginx -s stop && /usr/local/nginx/sbin/nginx
另外nodeSelector部分作用是指定nginx运行在某个节点上。需要提前通过下面命令给指定节点打上标签,例如指定允许在node2时:
kubectl label nodes node2 deploy.nginx=true
7、执行deployment:
kubectl apply -f nginx-deployment.yaml
kubectl get pods -A
kubectl -n my-namespace describe pod xxxxx
kubectl -n my-namespace get events
8、编写k8s nginx-service.yaml文件,内容如下:
apiVersion: v1
kind: Service
metadata:
namespace: my-namespace
name: nginx-api-server-service
spec:
type: NodePort
selector:
app: nginx-pod
ports:
protocol: TCP
port: 8080
targetPort: 8080
8080 :
---
apiVersion: v1
kind: Service
metadata:
namespace: my-namespace
name: nginx-admin-server-service
spec:
type: NodePort
selector:
app: nginx-pod
ports:
protocol: TCP
port: 8081
targetPort: 8081
nodePort: 8081
9、执行service:
kubectl apply -f nginx-service.yaml
kubectl get service -A
kubectl -n my-namespace describe service xxxxx
kubectl -n my-namespace get events
---------- 正文结束 ----------
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