Error pinging docker server on "terraform apply"

Question

I am doing the terraform tutorial and reach the step to execute terraform apply.

After executing that command I get this error:

WARNING: cgroup v2 is not fully supported yet, proceeding with partial confinement

Error: Error pinging Docker server: Got permission denied while trying to connect to the Docker daemon socket at unix:///var/run/docker.sock: Get "http://%2Fvar%2Frun%2Fdocker.sock/_ping": dial unix /var/run/docker.sock: connect: permission denied

  on main.tf line 9, in provider "docker":
   9: provider "docker" {

This is what I have in my configuration main.tffile:

terraform {
  required_providers {
    docker = {
      source = "kreuzwerker/docker"
    }
  }
}

provider "docker" {
  
}

resource "docker_image" "nginx" {
  name         = "nginx:latest"
  keep_locally = false
}

resource "docker_container" "nginx" {
  image = docker_image.nginx.latest
  name  = "tutorial"
  ports {
    internal = 80
    external = 8000
  }
}

I have tried adding host = "unix:///var/run/docker.sock" in the provider function but still get that error. I have docker and NGINX configured in my pc too.

Does anyone know what is causing it?

Answer 1

Ensure Docker CLI tools are installed under /usr/local/bin and Set /var/run/docker.sock which some third-party clients such as terrafor may use to communicate with Docker

Reference: https://docs.docker.com/desktop/mac/permission-requirements/

Answer 2

You can find your Docker Socket using the following command:

docker context ls

And then update your provider block accordingly with the socket address

provider "docker" {
  host = "unix:///home/rehman/.docker/desktop/docker.sock"
}