Nginx companion & letsencrypt

Archive Rancher 1.x
1

Hello guys,

I try to understand how https://github.com/JrCs/docker-letsencrypt-nginx-proxy-companion works.
I’ve created my compose file, and services comes up without problems.

version: '2'
services:
 nginx:
  container_name: nginx
  labels:
   io.rancher.scheduler.global: 'true'
   io.rancher.container.pull_image: always
   io.rancher.scheduler.affinity:host_label: "id=s04"
   io.rancher.sidekicks: nginx-gen, nginx-letsencrypt
  image: nginx:latest
  ports:
  - 80:80
  - 443:443
  volumes:
  - /etc/nginx/conf.d
  - /etc/nginx/vhost.d
  - /usr/share/nginx/html
  - /mnt/nasOVH/nginx-ssl:/etc/nginx/certs:ro

 nginx-gen:
  container_name: gen
  labels:
io.rancher.scheduler.global: 'true'
io.rancher.container.pull_image: always
io.rancher.scheduler.affinity:host_label: "id=s04"
  build: http://xx.yy/Dockerfile
  volumes_from:
  - nginx
  volumes:
  - /var/run/docker.sock:/tmp/docker.sock:ro
 
 nginx-letsencrypt:
  container_name: letsencrypt
  labels:
io.rancher.scheduler.global: 'true'
io.rancher.container.pull_image: always
io.rancher.scheduler.affinity:host_label: "id=s04"
  image: jrcs/letsencrypt-nginx-proxy-companion
  volumes_from:
  - nginx
  environment:
  - "NGINX_DOCKER_GEN_CONTAINER=gen"
  - "ACME_CA_URI=https://acme-staging.api.letsencrypt.org/directory"
  volumes:
  - /mnt/nasOVH/nginx-ssl:/etc/nginx/certs:rw
  - /var/run/docker.sock:/var/run/docker.sock:ro

i’ve 4 nodes in my Rancher cluster and i try this in one node.
But i’ve some problems to understand.

How to certs & proxy container on other nodes ? Because if i understand, it listen /var/run/docker.sock who is on my node n°4, if i start a container on node1, how can it work ?

2nd question, in the nginx-gen container when i see the logs :

02/03/2017 11:16:092017/03/02 10:16:09 Sending container 'nginx' signal '1'
02/03/2017 11:16:092017/03/02 10:16:09 Error sending signal to container: No such container: nginx

And … no config or ssl certificate are created.

I think i dismiss a step, but wich one ?

If somebody can help me … :slight_smile:

Many thanks !