# Nginx companion & letsencrypt

**URL:** <https://forums.suse.com/t/nginx-companion-letsencrypt/5710>\
**Category:** Rancher 1.x\
**Created:** [March 2, 2017, 10:24am UTC](https://forums.suse.com/t/nginx-companion-letsencrypt/5710 "2017-03-02T10:24:12Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Charly](https://avatars.discourse-cdn.com/v4/letter/c/9d8465/32.png) [@Charly](https://forums.suse.com/u/Charly)\
**Post date:** [March 2, 2017, 10:24am UTC](https://forums.suse.com/t/nginx-companion-letsencrypt/5710/1 "2017-03-02T10:24:12Z")

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Hello guys,

I try to understand how [https://github.com/JrCs/docker-letsencrypt-nginx-proxy-companion](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 … 🙂

Many thanks !