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@petitviolet
Created March 11, 2018 11:04
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sample Nginx configuration on Kubernetes using ConfigMap to configure nginx.
apiVersion: v1
kind: ConfigMap
metadata:
name: nginx-conf
data:
nginx.conf: |
user nginx;
worker_processes 3;
error_log /var/log/nginx/error.log;
events {
worker_connections 10240;
}
http {
log_format main
'remote_addr:$remote_addr\t'
'time_local:$time_local\t'
'method:$request_method\t'
'uri:$request_uri\t'
'host:$host\t'
'status:$status\t'
'bytes_sent:$body_bytes_sent\t'
'referer:$http_referer\t'
'useragent:$http_user_agent\t'
'forwardedfor:$http_x_forwarded_for\t'
'request_time:$request_time';
access_log /var/log/nginx/access.log main;
server {
listen 80;
server_name _;
location / {
root html;
index index.html index.htm;
}
}
include /etc/nginx/virtualhost/virtualhost.conf;
}
virtualhost.conf: |
upstream app {
server localhost:8080;
keepalive 1024;
}
server {
listen 80 default_server;
root /usr/local/app;
access_log /var/log/nginx/app.access_log main;
error_log /var/log/nginx/app.error_log;
location / {
proxy_pass http://app/;
proxy_http_version 1.1;
}
}
---
apiVersion: apps/v1beta1
kind: Deployment
metadata:
name: nginx
spec:
replicas: 1
template:
metadata:
labels:
app: nginx
spec:
containers:
- name: nginx
image: nginx
ports:
- containerPort: 80
volumeMounts:
- mountPath: /etc/nginx # mount nginx-conf volumn to /etc/nginx
readOnly: true
name: nginx-conf
- mountPath: /var/log/nginx
name: log
volumes:
- name: nginx-conf
configMap:
name: nginx-conf # place ConfigMap `nginx-conf` on /etc/nginx
items:
- key: nginx.conf
path: nginx.conf
- key: virtualhost.conf
path: virtualhost/virtualhost.conf # dig directory
- name: log
emptyDir: {}
---
apiVersion: v1
kind: Service
metadata:
name: nginx
spec:
type: LoadBalancer
ports:
- port: 80
targetPort: 80
selector:
app: nginx
@pbkh-kimheang
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Can we provide the server configuration wihtout having the config map?
I don't want to use config map, I want to apply the setting configuration in the deployment directly. Is it possible?

@MuhammadMunir12
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Hello,

I have created config map to mount nginx.conf inside the nginx contianer.
But I am seeing the nginx default page inside pod not the one I have mounted via configmap.
PS: I am trying this on OpenShift 4.6 cluster.

My files are:

Config map

apiVersion: v1
kind: ConfigMap
metadata:
  name: nginx-conf
  namespace: nginx-ingress
data:
  nginx.conf: |-
    user nginx;
    worker_processes  10;
    events {
      worker_connections  10240;
    }
    http {
      server {
          listen       80;
          server_name  localhost;
          location / {
            root   /usr/share/nginx/html; #Change this line
            index  index.html index.htm;
        }
      }
    }

Deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nginx-deployment
  namespace: nginx-ingress
spec:
  selector:
    matchLabels:
      app: nginx
  replicas: 1
  template:
    metadata:
      labels:
        app: nginx
    spec:
      nodeSelector:
        compute1: worker1
      volumes:
      - name: nginx-conf
        configMap:
          name: nginx-conf
          items:
            - key: nginx.conf
              path: nginx.conf
      containers:
      - name: nginx-alpine-perl
        image: docker.io/library/nginx@sha256:51212c2cc0070084b2061106d5711df55e8aedfc6091c6f96fabeff3e083f355
        ports:
        - containerPort: 80
        securityContext:
          allowPrivilegeEscalation: false
          #runAsUser: 0
        volumeMounts:
            - name: nginx-conf
              mountPath: /etc/nginx
              #subPath: nginx.conf
              readOnly: true

I tried it with specific path as well like: /etc/nginx/nginx.conf but it doesn't create container.

Any help would be appreciated?

@Majid-cloud
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Do i need to install nginx (using yum etc) or configmap will create nginx files automatically.

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