reseau solution

vi haproxy.cfg

frontend http_frontend
        bind *:80
        default_backend http_backend
backend http_backend
        mode http
        balance roundrobin
        server server1 web1:80 check
        server server2 web2:80 check

docker network create web
docker network ls

NETWORK ID     NAME      DRIVER    SCOPE
215762b5f166   bridge    bridge    local
d44bd01134bd   host      host      local
cf2a789ecb04   none      null      local
1b7e609de0f2   web       bridge    local

Créer 2 images “nginx1“ et “nginx2“ avec des fichiers index.html spécifiques :

vi web1/Dockerfile

FROM nginx:1.19-alpine
COPY index.html /usr/share/nginx/html

vi web1/index.html

Server ONE

docker build -t nginx1 web1

vi web2/Dockerfile

FROM nginx:1.19-alpine
COPY index.html /usr/share/nginx/html

vi web2/index.html

Server TWO TWO

docker build -t nginx2 web2

Créer l’image myhaproxy avec de fichier de configuration fourni :

vi myhaproxy/Dockerfile

FROM haproxy:1.7
COPY haproxy.cfg /usr/local/etc/haproxy/haproxy.cfg

vi myhaproxy/haproxy.cfg

frontend http_frontend
        bind *:80
        default_backend http_backend
backend http_backend
        mode http
        balance roundrobin
        server server1 web1:80 check
        server server2 web2:80 check

docker build -t myhaproxy myhaproxy

Lancer les 3 conteneurs :

docker run -d --network=web --name=web1 nginx1
docker run -d --network=web --name=web2 nginx2
docker run -d --network=web --name=myhaproxy -p 80:80 myhaproxy

Vérifier le haproxy :

curl localhost

Server One

curl localhost

Server Two