» Docker Provider

The Docker provider is used to interact with Docker containers and images. It uses the Docker API to manage the lifecycle of Docker containers. Because the Docker provider uses the Docker API, it is immediately compatible not only with single server Docker but Swarm and any additional Docker-compatible API hosts.

Use the navigation to the left to read about the available resources.

» Example Usage

# Configure the Docker provider
provider "docker" {
  host = "tcp://127.0.0.1:2376/"
}

# Create a container
resource "docker_container" "foo" {
  image = "${docker_image.ubuntu.latest}"
  name  = "foo"
}

resource "docker_image" "ubuntu" {
  name = "ubuntu:latest"
}

» Registry Credentials

Registry credentials can be provided on a per-registry basis with the registry_auth field, passing either a config file or the username/password directly.

provider "docker" {
  host = "tcp://localhost:2376"

  registry_auth {
    address = "registry.hub.docker.com"
    config_file = "~/.docker/config.json"
  }

  registry_auth {
    address = "quay.io:8181"
    username = "someuser"
    password = "somepass"
  }
}

data "docker_registry_image" "quay" {
  name = "myorg/privateimage"
}

data "docker_registry_image" "quay" {
  name = "quay.io:8181/myorg/privateimage"
}

In this case, either use username and password directly or set the enviroment variables DOCKER_REGISTRY_USER and DOCKER_REGISTRY_PASS or add the string manually via

echo -n "user:pass" | base64
# dXNlcjpwYXNz=

and paste it into ~/.docker/config.json:

{
    "auths": {
        "repo.mycompany:8181": {
            "auth": "dXNlcjpwYXNz="
        }
    }   
}

» Argument Reference

The following arguments are supported:

  • host - (Required) This is the address to the Docker host. If this is blank, the DOCKER_HOST environment variable will also be read.

  • cert_path - (Optional) Path to a directory with certificate information for connecting to the Docker host via TLS. If this is blank, the DOCKER_CERT_PATH will also be checked.

  • ca_material, cert_material, key_material, - (Optional) Content of ca.pem, cert.pem, and key.pem files for TLS authentication. Cannot be used together with cert_path.

  • registry_auth - (Optional) A block specifying the credentials for a target v2 Docker registry.

    • address - (Required) The address of the registry.
    • username - (Optional) The username to use for authenticating to the registry. Cannot be used with the config_file option. If this is blank, the DOCKER_REGISTRY_USER will also be checked.
    • password - (Optional) The password to use for authenticating to the registry. Cannot be used with the config_file option. If this is blank, the DOCKER_REGISTRY_PASS will also be checked.
    • config_file - (Optional) The path to a config file containing credentials for authenticating to the registry. Cannot be used with the username/password options. If this is blank, the DOCKER_CONFIG will also be checked.