How Install SSL Certificate on ha proxy dockerfile using letsencrypt - docker

Question

I am using haproxy to route the domains and subdomains and it is deployed on port 80. I want that all the domains should be https or using SSL certificate.
global
log xx.xx.90.28 local0
log xx.xx.90.28 local1 notice
maxconn 2048
defaults
log global
mode http
option httplog
option dontlognull
option redispatch
option forwardfor
option http-server-close
retries 3
timeout connect 5000
timeout client 10000
timeout server 10000
frontend balancer
bind *:80
mode http
stats enable
stats uri /stats
stats refresh 15s
stats show-node
stats auth admin:admin
acl domain hdr_dom(host) -i www.example.com
acl subdomain hdr_dom(host) -i app.example.com
acl subdomain1 hdr_dom(host) -i examplecom
use_backend go_app_1 if domain
use_backend go_app_2 if subdomain
use_backend go_app_3 if subdomain1
backend go_app_1
balance roundrobin
mode http
option forwardfor
server go xx.xx.90.28:8081 check
backend go_app_2
balance roundrobin
mode http
option forwardfor
server go xx.xx.90.28:8082 check
backend go_app_3
balance roundrobin
mode http
option forwardfor
server go xx.xx.90.28:8081 check
And here is the DockerFile
FROM haproxy:2.1
COPY haproxy.cfg /usr/local/etc/haproxy/haproxy.cfg
Now I want to use letsencrypt to secure these URL please guide me how I can do this?

Answer 1

I think we need to setup letsencrypt locally first.
And inject the result setting to the container via volume mount.
Example command from Docker Hub:
docker run -d --name my-running-haproxy -v /path/to/etc/haproxy:/usr/local/etc/haproxy:ro haproxy:1.7
Something like below:
-v /my/letsencrypt/setting/:/etc/ssl/