Docker Container from Terraform will not start - docker

Question

I launched a Docker container with Terraform, simple code.
> cat main.tf
provider "docker"{
}
resource "docker_image" "ubuntu"{
name = "ubuntu:latest"
}
resource "docker_container" "webserver" {
image = "${docker_image.ubuntu.latest}"
name = "dev-web-p01"
#start = true
must_run = true
publish_all_ports = true
}
I can see the container spun up but not running.
> docker container -ps -a
CONTAINER ID IMAGE COMMAND CREATED STATUS PORTS NAMES
63c770e28ad2 47b19964fb50 "/bin/bash" 10 minutes ago Exited (0) 3 minutes ago dev-web-p01
My attempt to start and connect to the container fails and I am not sure why?
> docker container start 63c
63c
> docker container exec -it 63c /bin/bash
Error response from daemon: Container 63c770e28ad256e77442cb2fb8b9b8bbc14b8f37b99296bc63f2d249209e0399 is not running
I have tried this for a couple of times but it doesn't work. Sorry bit of a noob here.

Answer 1

Exited (0) means program successfully completed. With docker you need to execute some long running commands to ensure it doesn't finish immediately.
Best way to test some changes with docker, is waiting for nothing. Try this:
resource "docker_image" "ubuntu" {
name = "ubuntu:latest"
}
resource "docker_container" "webserver" {
image = "${docker_image.ubuntu.latest}"
name = "terraform-docker-test"
must_run = true
publish_all_ports = true
command = [
"tail",
"-f",
"/dev/null"
]
}