Les protagonistes

Les précédents

La licence

La place de Nginx

La suite ?

Un pod avec deux conteneurs

Contexte

Le Deployment

apiVersion: apps/v1
kind: Deployment
metadata:
  name: nextcloud-deployment
spec:
  selector:
    matchLabels:
      app: nextcloud
  replicas: 1
  template:
    metadata:
      labels:
        app: nextcloud
    spec:
      containers:
      - name: nginx
        image: nginx:1.15
        ports:
        - containerPort: 80
        volumeMounts:
        - name: nginx-config
          mountPath: /etc/nginx/nginx.conf
          subPath: nginx.conf
        - name: pv-nextcloud
          mountPath: /var/www/html
        lifecycle:
          postStart:
            exec:
             command: ["bin/sh", "-c", "mkdir -p /var/www/html"]
      - name: nextcloud
        image: nextcloud:14.0-fpm
        ports:
        - containerPort: 9000
        volumeMounts:
        - name: pv-nextcloud
          mountPath: /var/www/html
        resources:
          limits:
            cpu: "1"
      volumes:
      - name : nginx-config
        configMap:
           name: nginx-config
      - name: pv-nextcloud
        flexVolume:
          driver: ceph.rook.io/rook
          fsType: ceph
          options:
            fsName: myfs
            clusterNamespace: rook-ceph
            path: /nextcloud2

Il n'y a pas le Service associé pour la simple et bonne raison que chacun fait comme il le veut. Si vous êtes chez DigitalOcean, OVH ou chez un des GAFAM qui propose du k8s, vous aurez un LoadBalancer qui va bien. Si vous êtes comme moi, vous êtes réduit à faire du NodePort.

Ce qu'il faut comprendre

Nginx

      - name: nginx
        image: nginx:1.15
        ports:
        - containerPort: 80
        volumeMounts:
        - name: nginx-config
          mountPath: /etc/nginx/nginx.conf
          subPath: nginx.conf
        - name: pv-nextcloud
          mountPath: /var/www/html
        lifecycle:
          postStart:
            exec:
             command: ["bin/sh", "-c", "mkdir -p /var/www/html"]

Lifecycle

Les deux points de montage

        - name: pv-nextcloud
          mountPath: /var/www/html

        - name: nginx-config
          mountPath: /etc/nginx/nginx.conf
          subPath: nginx.conf

kind: ConfigMap
apiVersion: v1
metadata:
  name: nginx-config
data:
  nginx.conf: |
    worker_processes  1;

    error_log  /var/log/nginx/error.log warn;
    pid        /var/run/nginx.pid;

    events {
        worker_connections  1024;
    }

    http {
        include       /etc/nginx/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  /var/log/nginx/access.log  main;

        sendfile        on;
        #tcp_nopush     on;

        keepalive_timeout  65;

        #gzip  on;

        server {
            listen 80;

            add_header X-Content-Type-Options nosniff;
            add_header X-XSS-Protection "1; mode=block";
            add_header X-Robots-Tag none;
            add_header X-Download-Options noopen;
            add_header X-Permitted-Cross-Domain-Policies none;
            add_header Referrer-Policy no-referrer;

            root /var/www/html;

            location = /robots.txt {
                allow all;
                log_not_found off;
                access_log off;
            }

            location = /.well-known/carddav {
                return 301 $scheme://$host/remote.php/dav;
            }
            location = /.well-known/caldav {
                return 301 $scheme://$host/remote.php/dav;
            }

            # set max upload size
            client_max_body_size 10G;
            fastcgi_buffers 64 4K;

            # Enable gzip but do not remove ETag headers
            gzip on;
            gzip_vary on;
            gzip_comp_level 4;
            gzip_min_length 256;
            gzip_proxied expired no-cache no-store private no_last_modified no_etag auth;
            gzip_types application/atom+xml application/javascript application/json application/ld+json application/manifest+json application/rss+xml application/vnd.geo+json application/vnd.ms-fontobject application/x-font-ttf application/x-web-app-manifest+json application/xhtml+xml application/xml font/opentype image/bmp image/svg+xml image/x-icon text/cache-manifest text/css text/plain text/vcard text/vnd.rim.location.xloc text/vtt text/x-component text/x-cross-domain-policy;

            location / {
                rewrite ^ /index.php$request_uri;
            }

            location ~ ^/(?:build|tests|config|lib|3rdparty|templates|data)/ {
                deny all;
            }
            location ~ ^/(?:\.|autotest|occ|issue|indie|db_|console) {
                deny all;
            }

            location ~ ^/(?:index|remote|public|cron|core/ajax/update|status|ocs/v[12]|updater/.+|ocs-provider/.+)\.php(?:$|/) {
                fastcgi_split_path_info ^(.+\.php)(/.*)$;
                include fastcgi_params;
                fastcgi_param SCRIPT_FILENAME $document_root$fastcgi_script_name;
                fastcgi_param PATH_INFO $fastcgi_path_info;
                # fastcgi_param HTTPS on;
                #Avoid sending the security headers twice
                fastcgi_param modHeadersAvailable true;
                fastcgi_param front_controller_active true;
                fastcgi_pass 127.0.0.1:9000;
                fastcgi_intercept_errors on;
                fastcgi_request_buffering off;
            }

            location ~ ^/(?:updater|ocs-provider)(?:$|/) {
                try_files $uri/ =404;
                index index.php;
            }

            # Adding the cache control header for js and css files
            # Make sure it is BELOW the PHP block
            location ~ \.(?:css|js|woff|svg|gif)$ {
                try_files $uri /index.php$request_uri;
                add_header Cache-Control "public, max-age=15778463";
                add_header X-Content-Type-Options nosniff;
                add_header X-XSS-Protection "1; mode=block";
                add_header X-Robots-Tag none;
                add_header X-Download-Options noopen;
                add_header X-Permitted-Cross-Domain-Policies none;
                add_header Referrer-Policy no-referrer;

                # Optional: Don't log access to assets
                access_log off;
            }

            location ~ \.(?:png|html|ttf|ico|jpg|jpeg)$ {
                try_files $uri /index.php$request_uri;
                # Optional: Don't log access to other assets
                access_log off;
            }
        }

    }

On apply tout ça

dada@k8smaster1:~$ kubectl apply -f configmap.yaml
dada@k8smaster1:~$ kubectl apply -f nextcloud.yaml

dada@k8smaster1:~$ kubectl get pods
nextcloud-deployment-d6cbb8446-87ckf   2/2     Running   0          15h

Pour aller plus loin