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selfhosted·SelfhostedbyWubbyGeth

Caddy reverse proxy

I 'm trying to setup a caddy reverse proxy within Docker and I am following the guide in this YouTube video

https://www.youtube.com/watch?v=qj45uHP7Jmo but when I the run docker compose up -d command I get this error:

failed to create task for container: failed to create shim task: OCI runtime create failed: runc create failed: unable to start container process: error during container init: error mounting "/home/Joe/container/caddy/Caddyfile" to rootfs at "/etc/caddy/Caddyfile": create mountpoint for /etc/caddy/Caddyfile mount: cannot create subdirectories in "/var/lib/docker/overlay2/49e15938cd9c418a331b963f6fbbd3bba726b28748113ee8d028f6adf034b525/merged/etc/caddy/Caddyfile": not a directory: unknown: Are you trying to mount a directory onto a file (or vice-versa)? Check if the specified host path exists and is the expected type

I am a bit perplexed on what I am doing wrong so any advice would be appreciated!

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Comments16

16 replies

roofuskit
lemmy.world

Can you share your compose file? You should be able to paste into code blocks in a comment or your original post. It's likely you've yamld something wrong.

7
WubbyGethreply
lemmy.world

I do but I am wondering if the syntax in my caddyfile is wrong.

I did get past my initial error thanks to this group but I cannot get to my portainer via host name still.

2
Xanzareply
lemm.ee

I do but I am wondering if the syntax in my caddyfile is wrong.

Caddy can format caddyfiles;

caddy fmt --overwrite /home/Joe/container/caddy/Caddyfile
caddy validate --config /home/Joe/container/caddy/Caddyfile --adapter caddyfile
5
WubbyGeth
lemmy.world

Here is my YAMLD YAML haha

version: '3.3' networks: caddy: services: portainer: image: portainer/portainer-ce:latest container_name: portainer2 restart: unless-stopped security_opt: - no-new-privileges:true volumes: - /etc/localtime:/etc/localtime:ro - /var/run/docker.sock:/var/run/docker.sock:ro - /home/Joe/containers/portainer/portainer-data:/data networks: - caddy ports: - 9000:9000

caddy: image: caddy:latest restart: unless-stopped container_name: caddy ports: - 80:80 - 443:443 volumes: - /home/Joe/container/caddy/Caddyfile:/etc/caddy/Caddyfile - /home/Joe/container/caddy/site:/srv - /home/Joe/container/caddy/caddy_data:/data - /home/Joe/container/caddy/caddy_config:/config networks: - caddy volumes: caddy_data:

4
HelloRootreply
lemy.lol

The error suggests that you're trying to mount a file (Caddyfile) onto a directory or vice versa. Let's debug this step by step.

Steps to Fix:

  1. Check if the path exists and is correct Run:

    ls -ld /home/Joe/container/caddy/Caddyfile
    • If it’s a directory, it should be a file instead.
    • If it doesn’t exist, create an empty one: 
      touch /home/Joe/container/caddy/Caddyfile

  2. Ensure correct permissions

    chmod 644 /home/Joe/container/caddy/Caddyfile

  3. Check YAML Formatting
    Your docker-compose.yml seems to have incorrect indentation and improper quotes around version. Here's a fixed version:

    version: "3.3"

networks:
  caddy:

services:
  portainer:
    image: portainer/portainer-ce:latest
    container_name: portainer2
    restart: unless-stopped
    security_opt:
      - no-new-privileges:true
    volumes:
      - /etc/localtime:/etc/localtime:ro
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - /home/Joe/containers/portainer/portainer-data:/data
    networks:
      - caddy
    ports:
      - 9000:9000

  caddy:
    image: caddy:latest
    restart: unless-stopped
    container_name: caddy
    ports:
      - 80:80
      - 443:443
    volumes:
      - /home/Joe/container/caddy/Caddyfile:/etc/caddy/Caddyfile
      - /home/Joe/container/caddy/site:/srv
      - /home/Joe/container/caddy/caddy_data:/data
      - /home/Joe/container/caddy/caddy_config:/config
    networks:
      - caddy

  4. Restart Docker and Try Again

    docker compose down
docker compose up -d

If the error persists, check docker logs caddy for additional hints.

6
funkajunk
lemm.ee

I have always had trouble whenever I tried mounting files, and it seems that you're getting the same error, "not a directory".

Stick to mounting directories and you should be fine

/home/Joe/container/caddy:/etc/caddy

4
enemenemu
lemm.ee

I was successful in installing and using caddy directly on my host instead of podman (docker).

Edit: someone doesn't like that I succeeded at it ...

3
WubbyGeth
lemmy.world

Thank you everyone for your help!

I elected to start from scratch and use nginx and have come across another issue that I am hoping someone can shed some light on.

  • I've purchased a domain.
  • configured CloudFlare to use as my DNS.
  • set up a CNAME for my two test containers.
  • set up my SSL cert in nginx
  • forwarded the proper ports on my router for my test containers.
  • Configured two hosts. AudioBookShelf and Portainer

I can get to my Audiobookshelf perfectly from the web but when I try to reach my portainer it just re-directs to my audiobookshelf container.

When I disable audiobookshelf and attempt access my portainer I now get error code 521 website down. I am not sure what I misconfigured.

1
roofuskitreply
lemmy.world

Caddy is growing in popularity and finding its ways into more and more tutorials. Traefik and Caddy seem to be found in more reverse proxy tutorials/docs than NPM anymore. Forget about SWAG these days.

6
fatalicusreply
lemmy.world

Because caddy has built in, and default enabled, SSL of all sites using letsencrypt, something nginx doesn't have from what I can see.

5

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