adding a simple docker service template for coder

docker-stack/coder/docker-service-simple/main.tf

@@ -0,0 +1,140 @@
+terraform {
+	required_providers {
+		coder = {
+			source  = "coder/coder"
+			version = "0.5.3"
+		}
+		docker = {
+			source  = "kreuzwerker/docker"
+			version = "~> 2.20.2"
+		}
+	}
+}
+
+data "coder_provisioner" "me" {
+}
+
+provider "docker" {
+}
+
+data "coder_workspace" "me" {
+}
+
+locals {
+	workspace_name = "${data.coder_workspace.me.owner}-${data.coder_workspace.me.name}"
+
+	## this points to the workspace parent directory accessible from the docker host.
+	workspace_dir = "/home/gfs-data/coder/workspace/${local.workspace_name}"
+
+	## this indicates the view of workspace_dir from within the coder server container.
+	## the binding mount directory in coder.yml must match the leading directory in this item.
+	server_workspace_dir =  "/workspace/${local.workspace_name}"
+}
+
+resource "null_resource" "workspace" {
+
+	triggers = {
+		dir = local.server_workspace_dir
+	}
+
+	provisioner "local-exec" {
+		command = "mkdir ${self.triggers.dir}"
+	}
+
+	provisioner "local-exec" {
+		when = destroy
+		command = "rm -rf ${self.triggers.dir}"
+	}
+}
+
+resource "coder_agent" "main" {
+	arch           = data.coder_provisioner.me.arch
+	os             = "linux"
+	startup_script = "code-server --auth none"
+
+	# These environment variables allow you to make Git commits right away after creating a
+	# workspace. Note that they take precedence over configuration defined in ~/.gitconfig!
+	# You can remove this block if you'd prefer to configure Git manually or using
+	# dotfiles. (see docs/dotfiles.md)
+	env = {
+		GIT_AUTHOR_NAME     = "${data.coder_workspace.me.owner}"
+		GIT_COMMITTER_NAME  = "${data.coder_workspace.me.owner}"
+		GIT_AUTHOR_EMAIL    = "${data.coder_workspace.me.owner_email}"
+		GIT_COMMITTER_EMAIL = "${data.coder_workspace.me.owner_email}"
+	}
+}
+
+resource "coder_app" "code-server" {
+	agent_id  = coder_agent.main.id
+	name      = "code-server"
+	url       = "http://localhost:8080/?folder=/home/coder"
+	icon      = "/icon/code.svg"
+	subdomain = false
+	share     = "owner"
+
+	healthcheck {
+		url       = "http://localhost:8080/healthz"
+		interval  = 3
+		threshold = 10
+	}
+}
+
+##resource "docker_volume" "home_volume" {
+##	name = "coder-${data.coder_workspace.me.owner}-${data.coder_workspace.me.name}-root"
+##}
+
+resource "docker_service" "workspace" {
+	##depends_on = [local_file.workspace]
+	depends_on = [null_resource.workspace]
+
+	##count = data.coder_workspace.me.start_count
+	name = "coder-${data.coder_workspace.me.owner}-${lower(data.coder_workspace.me.name)}"
+
+	task_spec {
+		container_spec {
+			image = "codercom/code-server:latest"
+			hostname = lower(data.coder_workspace.me.name)
+			command = ["sh"]
+			##args =  ["-c", replace(coder_agent.main.init_script, "/localhost|127\\.0\\.0\\.1/", "host.docker.internal")]
+			args =  ["-c", replace(coder_agent.main.init_script, "/localhost|127\\.0\\.0\\.1/", "coder-service-host") ]
+
+			env = {
+				CODER_AGENT_TOKEN = "${coder_agent.main.token}"
+			}
+			#hosts {
+			#  host = "host.docker.internal"
+			#  ip   = "host-gateway"
+			#}
+
+			mounts {
+				target = "/home/coder"
+				source = local.workspace_dir
+				type = "bind"
+				read_only = false
+			}
+
+			##dir = "/home/coder"
+			##user = "root"
+		}
+   
+		resources {
+			limits {
+				memory_bytes = 1000000000
+			}
+		}
+		#placement {
+		#  constraints = [
+		#    "node.role == manager"  
+		#  ]
+		#}
+
+		force_update = 0
+		networks = ["coder-network"]
+	}
+
+	mode {
+		replicated {
+			replicas = 1
+		}
+	}
+}